8V +/- 50 kHz. The FAA-450 comes with an aluminium enclosure which consists of 6 sheets of 3mm aluminium plates, all are in silvery anodic oxidation. The operator must set USB mode and the frequency manually. -- Reduction drive for the Mighty Midget's Mate-- Back to the Barbados Barebones Receiver:. You can slso post your query on the main uBitx Facebook groups at BITX40 and uBITX QRP Radio Kit. For example, if you wish to input "25000000", just type "25M" instead. The RadI2Cino (Pronounced Rad ee too CEE no) was designed to replace the "Radino" card for the Micro BITX (uBITX) transceiver to allow the use of the built in I2C data bus. However, a rough check may be performed by receiving radio station WWV, WWVH, or other standard frequency signals. net In his experience he has found that the only reliable approach, that doesn't involve complex test instruments, is to download and use an audio spectrum analyzer program. net Vision Statement To build the largest and most complete Amateur Radio community site on the Internet. - uBITX's BFO Calibration value is not in the specified range, so the default value has been applied forcibly. The dial will still show the transmit frequency, therefore the dials of both radios will be the same, assuming the calibration is correct. Your uBITX BFO Calibration value is one of two. Well, I do want to say this about the uBitx calibration routines, they suck. RF Explorer and Handheld Spectrum Analyzer model WSUB1G 240 - 960 MHz. Su Mo Tu We Th Fr Sa. The second part of the Cal, also in the 'Preferences' menu, is setting the displayed VFO frequency. brackeys how to make a tileset, Jan 23, 2015 · Tips for drawing tilesets - posted in General Questions/Discussion: We have great tools (Tiled, Dusk and so on) to make tiled games, but could you share some tips how to draw tilesets. KB1OIQ made several FT8 contacts with his BITX40 in this way. Jim Sheldon #74489. Micro-BITX Calibration Instructions January 2019 Steve N3SB. 0 it was almost impossible to calibrate it. Project descriptions on this page are intended for entertainment only. 150 MHz I observed that voice quality was clearest (most natural) when the frequency display was 50 Hz above the even KHz transmit frequency (verified on a separate receiver). 150 MHz I observed that voice quality was clearest (most natural) when the frequency display was 50 Hz above the even KHz transmit frequency (verified on a separate receiver). CECSW provides two VFOs, VFO A and VFO B. set LO <-> Tune Offset This adjusts the difference between the "LO" centre and the actual tuned frequency. 1 Hz is generated e N total = [e N 2 + 4 kTR S + (i N R S ) 2 ]1 / 2 (1) with an external ac coupling capacitor, which is also the where RS is the total input source resistance. uBITX used a 25Mhz crystal to operate the Si5351's PLLA at 875Mhz. 35 MHz, sampling rate 1 MHz. SolderSmoke Daily News (CBLA) frequency of 3579 kHz. Regarding this condition, we will convey a numbers of important things: 1. This event will be at the Chick-Owa Sportsman's Club 9279 Ottogan St, Holland, MI 49423 from 6:15 PM to 9:00 PM. On the 30m frequency (10. 8 with no problems, but I use two dropping diodes with my LiFePO4 battery. User Manual for KD8CEC uBITX software rev 1. 0 dB magnitude and 0. On the top line, 14. At first I'll just have to do the math to get on frequency, but eventually I'll have a program. The rig supports two VFOs, RIT, calibration, CW semi break-in, meter indicator, etc. When i was starting with the Ubitx 5. On-screen calibration of Touch Screen; Easy calibration of uBITX clocks and BFO; Real Time Clock (add optional battery) About a dozen I/O pins to play with plus 800K of free flash memory, 200K of free SRAM, all clocked at 180MHz. Every effort was made by the authors to ensure the software is trouble free and safe to use. I personally run mine in 5W mode. 5 out of 5 stars. The default is 10000 (10KHz) and is used when a frequency is typed in OR if tuned by a clicking the right mouse button. They are all a little different! But it will help if you know the values from other Ubitx 5. The main boards are built and tested by the manufacturer in India and the end user only has to mount the boards in a case and wire the power, controls, and antenna connections. How to adjust the frequency in uBITX Describe any unmodified uBITX based on (use 25Mhz x-tal) The PLLA frequency of uBITX is 875Mhz (875000000Hz) As the calibration value increases, the output frequency of uBITX decreases. * The 25 mhz oscillator is multiplied by 35 to run the vco at 875 mhz * This is divided by a number to generate different frequencies. Rice Lake manufactures a wide selection of quality calibration weights for various applications. begin(9600) // Calibration and carrier adjust routines work but are commented out. First: think that every Ubitx 5. Full solder and working well EU1KY V3 antenna analyzer frontend board: The EU1KY antenna analyzer V3 is an open source project to build your own, reasonably cheap but very functional antenna analyzer that is a handful tool for tuning coax-fed shortwave ham radio HF/VHF, and CB antennas. The VNA itself is about the size of a credit card and about 1/2″ (11mm) thick. The PAT Board, designed by Dave G4HUP (SK), allows for the. Built-in test signal generator and alignment tools to complete simple set-up adjustments. 0 has different calibration. 2meters at 144MHz λν=c 300(speed of light)/144(Frequency in MHz)=2(Length in meters) 300/88=3. If a voltage is detected on this input the LED S meter switches to power meter mode. I want to order but when I click BUY, it simply gives me a choice to select DHL which I did. In this Edition, you will find a list of all the new & updated articles on our site, and below you find a list of new files in the manuals section in the last months. 0W and a Turbo mode of 6. WELCOME TO HAMBUILDER INDONESIA Deepest condolences to all countries affected by the pandemic. 5-2 kHz lower than the frequency where he got the most “bass” response in his headphones, thus the final result had less bass response. frequency, and configure the modem for calibration mode. These were both previously published in The Spectrum Monitor magazine earlier this year. We categorize the programs into general purpose software, single purpose software, research software and software compatible with audio piping. set LO <-> Tune Offset This adjusts the difference between the "LO" centre and the actual tuned frequency. The default is 10000 (10KHz) and is used when a frequency is typed in OR if tuned by a clicking the right mouse button. Before you use it check the frequency calibration of your transceiver against WWV on 10 MHz or RWM on 9996 kHz to make sure you don't transmit out of band. For your information, the uBITX is an all-band HF SSB/CW QRP transceiver that comes tested and nearly ready to use for only $120 delivered. Nov 11, 2018 · 2017 Honda Civic TypeR & Civic FC5 for American truck simulator-Two cab options (civic FC5 & typeR)-the vehicles have their own original rims (both original factor. 00R software written by Ron Pfeiffer, W2CTX and Jim Sheldon, W0EB, including the minor hardware changes needed to make it work properly. The bus service from Helston to Lizard passes the Kynance Cove turning, but its a good 1/2 mile then on to the car park/visitor area, and a good walk down to the Cove from there. 0 has different calibration. The ubitx will defiantly help to hone my antenna building skills. Sometimes I spend days repairing one. When i was starting with the Ubitx 5. mixers, filters, amplifiers, modulators/demodulators, detectors, etc. Likewise HFSignals has introduced a new BITX QRP transmitter/receiver, the uBITX (MBITX). The dial will still show the transmit frequency, therefore the dials of both radios will be the same, assuming the calibration is correct. It uses standoff and PCB boards as a case. "Two Chinese companies, Radioddity and Baofeng, have teamed up to bring you the US$75 dual-band FM/DMR radio housed in the old UV-5R package. I guess its the challenge. Use the Tone Generator below to listen to the 432Hz. uBITx CW Conditioning Adapter This product is discontinued Thanks to Jim Sheldon, W0EB, we have this circuit that eliminates the issue of the erratic keying when using a straight key attached to the uBITx, and improve the use of a mechanical paddle with the internal keyer. " The way to open would be to boot your device into ClockworkMod Recovery, by pressing and holding the power button + home + volume up or down is depending on the model. The default is 10000 (10KHz) and is used when a frequency is typed in OR if tuned by a clicking the right mouse button. - Bug fix: 1's digit of the calibration of the 125MHz oscillator frequency was incorrectly set to the same as the 10's digit in the binary to decimal conversion: v2. 4:1 at the lower band edge tounder 1. ubitx - sketch for the raduino to work with the ubitx transceiver - afarhan/ubitx. The frequency seems to be under 2 ~ 3 Khz. When i was starting with the Ubitx 5. Intermediate Frequency could have resulted in even better image rejection. The vast majority of phone QSOs on 40 take place on whole integer kHz frequencies: 7164 kHz, NOT 7164. Get on the air!. uBITX (v6) Frequency Alignment This is a video that shows how exactly you can align the uBITX transceiver without any test equipment. Maintain certification to several quality and regulatory standards (e. 0 it was almost impossible to calibrate it. 5v DC on the input. DMR Radio Guide. Frequencies are transmitted that are offset above the carrier freq on USB (or below the carrier on LSB) by the exact value of the AUDIO tones fed into the radio mic jack from the TNC, soundcard, modem, etc. In this Edition, you will find a list of all the new & updated articles on our site, and below you find a list of new files in the manuals section in the last months. at that time; until I got the values from another Ham. 2 Mhz and this is what I saw on my scope. Was blown away with the uBITX version 6. Smartphone/Tablet. 1497 MHz) used for APRS Messenger traffic the MFSK-4 signal just fits in between the normal traffic and the band edge. Hambuilder will continue to business as usual as long as government regulation allows. Each file lasts 30 minutes and is available to stream free of charge. The rig supports two VFOs, RIT, calibration, CW semi break-in, meter indicator, etc. In no event will the author be liable for any damages, lost effort, inability to carry out a similar project, or to. Here's hoping some kind chap will have a picture of V1. au] has joined ##stm32 2018-11-01T15:47:47 -!- fenugrec [[email protected] The second part of the Cal, also in the 'Preferences' menu, is setting the displayed VFO frequency. I guess its the challenge. Made in Logan Utah by Apogee. io BITX20 group for ideas. X-108 Info X108G Radio Calibration. hanuman rasi natchathiram in tamil, Nov 10, 2017 · People who born in this natchathiram usually have good speaking skill. Its benefits can be enjoyed both as a hot tea, or a refreshing iced beverage. Record your result from the frequency counter and use that value in the setup line for the Si5351 in place of the 25000000 value. DK Nov 2018 Dear ok1vpz, this is the mods. I aligned my V6 uBitx according to the online methods - zero-beating WWV, then setting the BFO for loudest reception or using the online tuning aid. Girino fast arduino oscilloscope. Topics Toggle Dropdown Messages; Expanded; Polls; Hashtags #2meters #3d_printing #6meters; #antennas. If your calibration is out, this will NOT be zero-beat. Mohan foundation registrationCan foreigner buy property in sarawakThe app chrome has requested a certificate device login microsoftonline comStm32f4 frequency measurement exampleBands like 16 horsepowerAlibaba. We also greatly improved the calibration routines for both the Master a 10 channel frequency/mode memory was added along with its turn the uBITX on unless you connect a 3 volt backup battery between the "Vbat" pad on the Teensy 4 itself and ground. WD6CNF Audio Spectrum Analyzer runs on the Windows operating system and has the following features:. When i was starting with the Ubitx 5. This entry was posted in Ham Radio, New Products, News, QRP, Shortwave Radio and tagged QRP, QRP Transceivers, uBITX, uBITX Transceiver, uBITX v 6. LC-Meter Probe Calibration is very simple and quickly. The video provides additional material to help understand DMR, and shows how to program the radio, and includes a sample QSO" Baofeng RD-5R is a cooperation model and "RD" represents Radioddity, who […]. Introducing uBITX's Invalid Calibration Symptoms and Recovery Mode - Duration: 12:15. The output frequency can be jumper set to 10, 5, or 2. Introducing uBITX's Invalid Calibration Symptoms and. The operator must set USB mode and the frequency manually. The uBITX use an Arduino to simplify the front panel while retaining all the functionality in a simple menu system that works with the tuning knob and a single ‘function’ button. 2 out of 5 stars. An A>B button has been added that, when touched, makes the frequency in VFO B equal to the frequency in VFO A which makes preparing for SPLIT a bit less painful. One link that shines out for help for frequency alignment is: Asharr Farhan, Bill Meera, Peter Juliano. * The 25 mhz oscillator is multiplied by 35 to run the vco at 875 mhz * This is divided by a number to generate different frequencies. Close the main tuning capacitor by turning it fully counter-clockwise. Configure CAT control and confirm that WSJT-X commands frequency changes on uBitx display. The vast majority of phone QSOs on 40 take place on whole integer kHz frequencies: 7164 kHz, NOT 7164. A figure of +10000 puts the tuned frequency 10KHz higher than the LO. Toggle Calendar. I want to order but when I click BUY, it simply gives me a choice to select DHL which I did. I calibrated my uBITX (v6) today and made my first SSB QSO with the rig. There are problems with this Softrock based rig and unfortunately there are no simple "follow this guide" solutions out there to alleviate the problem quickly and simply. band this is around 4. The default is 10000 (10KHz) and is used when a frequency is typed in OR if tuned by a clicking the right mouse button. These are easily stripped away by a 4-section, low pass filter in the front-end. We use 8 well-matched low cost crystals to obtain a very smooth lter. Measurement System Calibration uBITX 50 Ohm Load Spectrum Analyzer Attenuator 1200 Hz Audio Gen Problem – how to account for attenuator changes vs frequency (due to resistor construction) Answer – use the tracking generator output from the spectrum analyzer, and its built-in normalization functions, to correct for the. set LO <-> Tune Offset This adjusts the difference between the "LO" centre and the actual tuned frequency. (number 4 above) - Your BFO Calibration value is too high. Basically the VFO frequency is the BFO frequency minus the operating frequency. The 50 Ohm load has two 100 Ohm resistors in parallel and can be made more attractive by using 0805 SMD resistors. The Characterization and Radiometric Calibration for Remote Sensing Annual Meeting (CALCON) provides a forum for scientists, engineers, managers, and leads to discuss challenges and solutions. The second part of the Cal, also in the 'Preferences' menu, is setting the displayed VFO frequency. I updated how the frequency is displayed to squeeze into the 12 characters. Now, touching SPL will put the rig into SPLIT frequency operation where VFO A will be receive and VFO B will be the transmit frequency. You could even do three 150 Ohm resistors in parallel to achieve the 50 Ohm target value. Total Ratings 10,. * QST 2015 - 2019 ARTICLES * First Issue of QST, December 1915 September 2015, pages 56-57 * * QST 2019 ARTICLES * December 2019 100/50/25 QST Dec Issue for: 1919, 1969, & 1994 W1AB 102 ANTENNA: Slot-Cube Antenna for 6-Meters, W6NBC 30-33 ARES: Public Service Mobile Radio: Safety, Ergonomics, and Laws K1CE 61-62 CLASSIC: The Galaxy III and V Transceivers KE8RN 100-01 DOCTOR: Low Sunspots Mean. A low frequency pole at 0. Setting the BFO •Click on the encoder button to display the menu, rotate it to the “Setup On?” and click. I find it difficult enough with 100 watts. 1 Hz is generated e N total = [e N 2 + 4 kTR S + (i N R S ) 2 ]1 / 2 (1) with an external ac coupling capacitor, which is also the where RS is the total input source resistance. 0 QRP transceiver. 0 has different calibration. There are now dozens of software defined radio packages that support the ultra cheap RTL-SDR. RTC07S (SUPER LOW cost) Si5351 Transceiver Controller + VFO/BFO Synthesizer - $29. Classical and Quantum Gravity, 35 (6). The operator must set USB mode and the frequency manually. If you know of a program that is missing please leave. 2meters at 144MHz λν=c 300(speed of light)/144(Frequency in MHz)=2(Length in meters) 300/88=3. Every effort was made by the authors to ensure the software is trouble free and safe to use. I calibrated my uBITX (v6) today and made my first SSB QSO with the rig. First: think that every Ubitx 5. 00R software written by Ron Pfeiffer, W2CTX and Jim Sheldon, W0EB, including the minor hardware changes needed to make it work properly. I personally run mine in 5W mode. The right frequency at the right time is vital to be spotted on WSPR. I'm going to also put out a video with the Antuino. A wide variety of earthquake prevention options are available to you, There are 372 earthquake prevention suppliers, mainly located in Asia. The uBITx transceiver is available for a bit over $100 , 3-30MHz, 10 Watt, CW/LSB/USB, built and tested. The default is 10000 (10KHz) and is used when a frequency is typed in OR if tuned by a clicking the right mouse button. BITX & uBITX resources. Deviation from the use of the electret mic supplied with the kit caused me to find out that a dynamic microphone did not work with the BITX40. The Micro-BITX frequency alignment process has been a common question on the CCARC email reflector over the past month or so, as more radio kits are being completed and fired up for the first time. Calibration is a 2-step procedure that involves accessing the 'Preferences' menu and setting the BFO so that noise from the speaker falls within parameters described here. The full derivation requires a little extra work because of the use of the root-mean-square value of a sinewave, based on its peak voltage value. These are easily stripped away by a 4-section, low pass filter in the front-end. A low frequency pole at 0. Browse by selecting different features or scroll below to learn more about Oscilloscopes, tips for buying one review oscilloscope products, and more! Lowest $ Highest $ Ships in 1-2 business days. New mode called FT8: sensitivity down to -20 dB on the AWGN channel; QSOs 4 times faster than JT65 or JT9; auto-sequencing includes an option to respond automatically to first decoded reply to your CQ. Setting the BFO •Click on the encoder button to display the menu, rotate it to the "Setup On?" and click. Calibration is a 2-step procedure that involves accessing the 'Preferences' menu and setting the BFO so that noise from the speaker falls within parameters described here. I connected a mic to the input of my PC, tuned the uBITX to an open frequency with just static, and adjusted the BFO to center the noise spectra between 500 and 2500 Hz. Its benefits can be enjoyed both as a hot tea, or a refreshing iced beverage. RTC02B Radio Transceiver Controller Si5351 on board Specification Si5351 clock generator with 25/27 MHz Xtal HF All band controller BFO oscillator out USB/LSB/AM switch control pin IF bandwith control pin AGC Fast/Low control pin NB control pin VFO A/B CB mode channel Voltage monitor, Temperature monitor, Fordward and Reflected reading Alarm indicator and alarm driver…. We offer full calibration services, and our friendly customer service staff can help make sure you have just what you need. Highest frequency would be 54 MHz ( for transmission and reception both) money. The first article deals with buying used and new equipment, while the other article is a review of the. Most of the menu options have logical defaults which are easily overridden. Measurement System Calibration uBITX 50 Ohm Load Spectrum Analyzer Attenuator 1200 Hz Audio Gen Problem – how to account for attenuator changes vs frequency (due to resistor construction) Answer – use the tracking generator output from the spectrum analyzer, and its built-in normalization functions, to correct for the. Micro-BITX Calibration Instructions January 2019 Steve N3SB The Micro-BITX frequency alignment process has been a common question on the CCARC email reflector over the past month or so, as more radio kits are being completed and fired up for the first time. Every effort was made by the authors to ensure the software is trouble free and safe to use. Using the First IF to get the full Panoramic Range of an SDR. The TCXO on the board has a trimmer that you can set and calibrate to WWV. MDQ Calibration Lab is an ISO/IEC 17025:2017 accredited lab. Scale the analogue value read from the s-meter pin (0-1024) by n, and experimentally weight it as a crude form of calibration. That allows me to run the calibration routines. Facebook-f Twitter Youtube Home Radios uBitx Icom Icom 9700 Wouxun Yaesu Software About me Contact uBitx updates and Build guide Sidetone issues: Sidetone 'vanishes' after a start blip. 0 has different calibration. 5mm stereo earphone jack, BNC RF output. For calibration, an Open/Short/Load (OSL) test kit is needed. net Vision Statement To build the largest and most complete Amateur Radio community site on the Internet. Roman found that the BFO frequency was about 1. 11 tool, with a spreadsheet and the frequency counter (the third calibration procedure learned). Step 3: Tap on the green phone icon -- NOT your FreedomPop. Personally I think the general coverage ssb receiver aspect is worth the price alone. There is no real way to get the radio any closer than 50hz off frequency. The uBITx transceiver is available for a bit over $100 , 3-30MHz, 10 Watt, CW/LSB/USB, built and tested. 00 out of 5 $ 45. The 432Hz Frequency. These are easily stripped away by a 4-section, low pass filter in the front-end. Use SSB & soundmodem. Every effort was made by the authors to ensure the software is trouble free and safe to use. (Referecnce frequency). 2018 - Découvrez le tableau "Balayeurs de fréquences radios et récepteurs ondes courtes" de louisgeorgesa sur Pinterest. These are audio-frequency signals. LC-Meter Probe Calibration is performed independently for other calibration data and quickly, so you can do it at any time. * The 25 mhz oscillator is multiplied by 35 to run the vco at 875 mhz * This is divided by a number to generate different frequencies. We also greatly improved the calibration routines for both the Master a 10 channel frequency/mode memory was added along with its turn the uBITX on unless you connect a 3 volt backup battery between the "Vbat" pad on the Teensy 4 itself and ground. Software - uBitx. installed new filter and coil mods for harmonics and spurs. 1:1 at 146 MHZ. instrument being dc coupled. The frequency synthesizer used as a local oscillator on-chip SI5351 The transceiver is designed to operate in the lower (LSB) / upper (USB) sideband as a phone (ssb) and CW. Re: UBITX V6. The Arduino lcd library allows a cursor to be set under a VFO frequency digit for emphasis, such as to illustrate the current step size. Setting the BFO •Click on the encoder button to display the menu, rotate it to the “Setup On?” and click. Intermediate Frequency could have resulted in even better image rejection. Condenser microphones, therefore, offer superior sound quality. Software-defined radio (SDR) is a radio communication system where components that have been typically implemented in hardware (e. 0 degrees phase differences between the channels in the entire frequency range. Also, condenser microphones usually offer much higher sensitivity (i. Once you have achieved JOVO and have the oscillator covering the frequency range you desire, it will be time to build the audio amplifier stage. From Wikipedia, the free encyclopedia. There are problems with this Softrock based rig and unfortunately there are no simple "follow this guide" solutions out there to alleviate the problem quickly and simply. Initial CAT Tests I have now been studying the CAT section of the operating manual and I must admit that I … Continue reading "FT-817 CAT". SDR-Kits new products announcements on 26 March 2020 - Magi-Cal Automatic Calibrator - this product has been re-launched is shipping now from stock - A 99% assembled version of the popular FA-VA5 Antenna Analyzer requiring only 10-15 minutes assembly time is now available at popular request - Back in stock is a new L-band Antenna AS154 with 10 meter RG58 cable for the 1540 MHz Inmarsat band. 8 and that the v 0. Use the Tone Generator below to listen to the 432Hz. 00R software written by Ron Pfeiffer, W2CTX and Jim Sheldon, W0EB, including the minor hardware changes needed to make it work properly. 0 has different calibration. I reconnected the encoder and added push buttons for the menu access and PTT. Before you use it check the frequency calibration of your transceiver against WWV on 10 MHz or RWM on 9996 kHz to make sure you don't transmit out of band. Get in the Generator window and ensure that it shows now 0. These are easily stripped away by a 4-section, low pass filter in the front-end. Next steps. RF Explorer and Handheld Spectrum Analyzer model WSUB1G 240 - 960 MHz. I reconnected the encoder and added push buttons for the menu access and PTT. 0 has different calibration. With the bias properly set this time I was able to get much more power output on all bands. The first article deals with buying used and new equipment, while the other article is a review of the. Calibration Capabilities Covering a broad range of test and measurement equipment SIMCO offers high-quality calibration services for a wide range of test and measurement instruments from many manufacturers through a worldwide network of calibration laboratories, onsite service teams, and qualified partners. S table Parameter calibration 1) Set the receiving frequency of. USB calibration depends on LSB calibration, so make sure that LSB calibration has been done first! use another transceiver to generate a carrier at a known frequency (for example 7100. Had to do recalibration and reset BFO. The main boards are built and tested by the manufacturer in India and the end user only has to mount the boards in a case and wire the power, controls, and antenna connections. You can also join and ask a question. Previous Month Next Month January February March April May June July August September October November December. If you have several types of probes, you can calibrate each probe individually. There are now dozens of software defined radio packages that support the ultra cheap RTL-SDR. Topics Toggle Dropdown Messages; Expanded; Polls; Hashtags #2meters #3d_printing #6meters; #antennas. Close the main tuning capacitor by turning it fully counter-clockwise. Switch back to the original configuration at the desired operating frequency. The VNA itself is about the size of a credit card and about 1/2″ (11mm) thick. Hambuilder continues it’s support working from home. Ubitx operators can access a host of menu options simply by depressing the tuning encoder. So, I've tested my Ubitx with a WSPR spotting just after a cold boot (after at least one day without turning it on) and after a while, at least 30 minutes. Pasternack's RF Power Conversion Calculator allows you to convert RF input power and RF output power values from variables such as milliwatts (mW), Watts, dBm, dBW, millivolts (mV), and Volts. McHF will be the perfect radio for me for portable, YOTA activities and DIGI modes. Open: Open Load on S11 port. Keeping these values in mind, CTR ensures customer satisfaction. On the 30m frequency (10. Again, it will probably end up around $500 total (minus casing) and should be a competent radio. Determining the Frequency of Calibration. I updated how the frequency is displayed to squeeze into the 12 characters. Some CW operators may also want to add a second narrow band lter for CW work, more on this when we discuss the CW mode. ETI is a leader in the calibration of critical test and measurement equipment. wa2eby kit, 2016-06-30 Display letters and words on the oscilloscope. Improved performance of decoders for JT65, QRA64, and MSK144. The operator must set USB mode and the frequency manually. A figure of +10000 puts the tuned frequency 10KHz higher than the LO. 0 has different calibration. Now we also have Teensy 4. I dialed in the 40 Meter FT8 Frequency and Boom this is what I received. First: think that every Ubitx 5. Every effort was made by the authors to ensure the software is trouble free and safe to use. Smartphone or Tablet Based. Roman found that the BFO frequency was about 1. Get on the air!. - Bug fix: 1's digit of the calibration of the 125MHz oscillator frequency was incorrectly set to the same as the 10's digit in the binary to decimal conversion: v2. After calibrating the VNA I did a series of sweeps from 1 - 250 MHz. I am still learning all the controls and functionality. Initial CAT Tests I have now been studying the CAT section of the operating manual and I must admit that I … Continue reading "FT-817 CAT". We use 8 well-matched low cost crystals to obtain a very smooth lter. The uBITX (Micro-BITX when spoken aloud), is an SSB and CW transceiver that covers all of the HF amateur bands, and like the original is designed for the home. I have the capability to put the SDR on 75 as well as 20M. They are all a little different! But it will help if you know the values from other Ubitx 5. For your information, the uBITX is an all-band HF SSB/CW QRP transceiver that comes tested and nearly ready to use for only $120 delivered. 8 and that the v 0. ubitx のcec版ファームウェアで有名な"kd8cec"さんのサイトで タイトルのアンテナ・アナライザが紹介されている。 50MHz帯までのアナライザ(AA-54)は既に所持しているのですが. 072k shows the frequency VFO B is currently tuned to. Now we also have Teensy 4. RTC07S (SUPER LOW cost) Si5351 Transceiver Controller + VFO/BFO Synthesizer - $29. enable usb debugging via recovery, ADB can't communicate with a phone without "enable USB debugging. He finally adopted Ian's mathematical iteration approach using the uBitx manager 1. 00R software written by Ron Pfeiffer, W2CTX and Jim Sheldon, W0EB, including the minor hardware changes needed to make it work properly. 0 it was almost impossible to calibrate it. The symptoms of ALS can overlap with other disorders. The case comes predrilled, with the cut out of the panel for the frequency display, ready to house the uBITX PCB. 0 kHz) (or ask a friend to transmit a carrier at a known frequency). ) are instead implemented by means of software on a personal computer or embedded system. 8V at 2A min recommended power supply. I personally run mine in 5W mode. Hi Chris! I am very pleased with this mcHF device I have had 1350 connections with it already and for two years in a row I have been working in the ARLL CW Contest of QRP categories and I enjoy working with it. Our Best Selling Apogee PAR Meter, The MQ-500 Full Spectrum Quantum Meter, Accurate for All Light Sources Including LED, Lightweight, Waterproof Sensor, Long Warranty. If a voltage is detected on this input the LED S meter switches to power meter mode. The 432Hz Frequency. If you spin the dial to a known frequency and listen it to it on SDR, you will notice compared to your radio that the signal is off. Panoramic Adapter Tap Boards. It shows its. fixed screen Update Problem; Frequency Display Problem - Problems occur below 1Mhz; added function Enhanced CAT communication; replace ubitx_cat. 5 to 30 Mhz) to much higher intermediate frequency that is at least 1-½ times the highest frequency of interest (for us that would be 45 MHz). 1MHz-1000MHz 1Ghz 50Ω VSWR Reflection Bridge SWR Bridge RF 1MHz-1000MHz 50Ω SWR Reflection VSWR bridge bridge RF. Made in Logan Utah by Apogee. I guess its the challenge. On this page we will attempt to list, categorize and provide a brief overview of each software program. 00 out of 5 $ 45. Micro-BITX Calibration Instructions January 2019 Steve N3SB. This nifty little audio preamp can be used for just about anything you can dream up, from microphones, QRP rigs, even guitars. For this reason, please save your transceiver settings using for example “FT 817 Commander” (you can google for it) before using this application. 072k shows the frequency VFO B is currently tuned to. I was even called by my friend Chuck, N3CRT, in Mt Arlington, NJ for a fast contact. 11 tool, with a spreadsheet and the frequency counter (the third calibration procedure learned). How to use your AV receiver's speaker calibration. This event will be at the Chick-Owa Sportsman's Club 9279 Ottogan St, Holland, MI 49423 from 6:15 PM to 9:00 PM. 1 2 3 … 83 » NEW Tri-Band BaoFeng UV-5R Pro. New mode for accurate Frequency Calibration of your radio. When i was starting with the Ubitx 5. dk newsletter for articles and manuals. The next HARC uBITX Build / Radio night is planned for Friday March 1, 2019. Onboard microswitch can be used as a simple straight Morse key. Accordingly, the IF images will be from 90 MHz to 125 MHz. A more limiting option is to replace L4 with a crystal or Ceramic Oscillator that is on a frequency that will land your radio in a range acceptable to you. However, 875Mhz is not generated correctly due. One may transmit something out with a microcontroller with a bandpass filter, but without knowing how to use transistors in general, and without understanding the nature of the transmission (e. Invest 30 minutes per day to learn Morse and use the Technician 80/40 (and 15) meters bands in Morse for great reliability and small investment of your time. As an ISO compliant company and CTR's commitment to quality through Continuous Improvement, Customer Service and our Commitment to Quality. Of all microphone types, condensers have the widest frequency response and the best transient response (transients are fast bursts of energy, e. Made in Logan Utah by Apogee. ) will boost the bass. The second prototype (now in work) will use plug in coils for those two bands. Ubitx operators can access a host of menu options simply by depressing the tuning encoder. I have the capability to put the SDR on 75 as well as 20M. Jim Sheldon #74489. This has been a fun project and my main band of operation these days is 40M. Before you use it check the frequency calibration of your transceiver against WWV on 10 MHz or RWM on 9996 kHz to make sure you don't transmit out of band. LED S meter Construction Manual – Issue 1. Built-in test equipment: voltmeter, RF power meter, frequency counter, signal generator. ubitx - sketch for the raduino to work with the ubitx transceiver - afarhan/ubitx. 2018-10-01T13:57:34 Sadale> uh 2018-10-01T13:57:36 Sadale> Brainfart. Got excellent audio reports! Hi Marks to a superb rig. Sunil Kumar Lakhani on Pictures Of uBitx Case Sunil Kumar Lakhani on Nextion Display Case For uBitx Sunil Kumar Lakhani on Universal Case With Nextion 2. Calibration Weights. It will need a couple hundred more in mods (there are a lot of them) and I'll probably give it the same treatment for a linear amp. That takes a V6 Raduino and it will only work on V6 and V5 uBITX's, NOT the V4 and earlier due to the different IF frequency on the V4 and earlier radios. Write down the correct cyrstal frequency on your Rig so it won’t get lost. Well anyway, I think i have resolved the issue and got the calibration right. LED S meter Construction Manual – Issue 1. 3 kHz! If you call CQ on a non-integer frequency, people get confused and irritated. All new code // is encapsulated in C++ classes, except a few small routines // in ubitx_kb1oiq. These are easily stripped away by a 4-section, low pass filter in the front-end. Si5351 synthesizer (VFO & BFO). removed, the original LO frequency was 120Mhz, this is still an option to choose, and you will still have the gap from 370-420 (approx) you can also choose to use a LO of 144Mhz with gaps of 250-255Mhz and 400-420Mhz or LO of 168Mhz which will give a gap of 250-265Mhz and Auto which switches between LO's to give you a NO GAP coverage of 100Khz. First: think that every Ubitx 5. The voltage reading on the scope calculated out to 6. Top rated products. This episode celebrates the two year anniversary of the Workbench concept, and we are joined by our extended family for the occasion - Mark “Smitty Halibut” Smith KR6ZY, Kenneth Finnegan W6KWF, Gerald “Powerpole the World” Wilson KF5JNU, and Brittany Mrs. The rig supports two VFOs, RIT, calibration, CW semi break-in, meter indicator, etc. As any CAT command is user customizable by just editing a text file, supplemental precaution must be taken. The uBITX is an "upconversion" radio where the incoming signal is first converted to the 45 MHz first IF frequency and then mixed with the VFO (clock) signals out of the Si5351 chip on the Raduino to select whether the radio is in SSB or CW mode and which sideband you want to listen to (in either mode). Now we also have Teensy 4. 5 to 30 Mhz) to much higher intermediate frequency that is at least 1-½ times the highest frequency of interest (for us that would be 45 MHz). Select a band through WSJT-X and check signal level display: You should start seeing FT-8 decodes appearing on the WSJT-X waterfall. The frequency synthesizer used as a local oscillator on-chip SI5351 The transceiver is designed to operate in the lower (LSB) / upper (USB) sideband as a phone (ssb) and CW. This gives you all HF ham, shortwave listening and more in the box of your choice. 8 Inch And 1602 Panel. The second prototype (now in work) will use plug in coils for those two bands. Many people prefer the sound of 432Hz citing a calmer, more natural sound compared to its harsher relative, 440Hz. The audio frequency heard in the receiver will change exactly Hz for Hz with changes of the radio frequency tuning dial. Love QRP and I am so happy with the uBitx that I have sold all my commercial HF rigs as I tend to use the uBitx all the time and it has revitalised the excitement of ham radio for me after all if I need reliable communication I can use my mobile phone !!!!. The dial will still show the transmit frequency, therefore the dials of both radios will be the same, assuming the calibration is correct. Got excellent audio reports! Hi Marks to a superb rig. Each file lasts 30 minutes and is available to stream free of charge. This is a 70 mHz, 32 bit ARM Cortex M4 processor on a board that's electrically and mechanically interchangeable with the original Arduino Nano board. * QST 2015 - 2019 ARTICLES * First Issue of QST, December 1915 September 2015, pages 56-57 * * QST 2019 ARTICLES * December 2019 100/50/25 QST Dec Issue for: 1919, 1969, & 1994 W1AB 102 ANTENNA: Slot-Cube Antenna for 6-Meters, W6NBC 30-33 ARES: Public Service Mobile Radio: Safety, Ergonomics, and Laws K1CE 61-62 CLASSIC: The Galaxy III and V Transceivers KE8RN 100-01 DOCTOR: Low Sunspots Mean. SpectrumView software. This is designed for remote sensors which have to transmit its data by just operating on a small battery. New mode for accurate Frequency Calibration of your radio. Calibration is a 2-step procedure that involves accessing the 'Preferences' menu and setting the BFO so that noise from the speaker falls within parameters described here. As any CAT command is user customizable by just editing a text file, supplemental precaution must be taken. never have the chance. Total Ratings 15, 93% agree - Would recommend. If a voltage is detected on this input the LED S meter switches to power meter mode. Calibration of the HV probe! It can be be done the easy way and the easier way! The easy way is to measure with your DVM a DC voltage of 300 to 500V and then adjust the multi-turn pot to see the same voltage divided by 100. I haven't received the license plates for my new car in the mail yet. These are audio-frequency signals. WebMD explains how, with the right exams and tests, doctors can do a diagnosis and figure out whether you have amyotrophic la. They are all a little different! But it will help if you know the values from other Ubitx 5. [Tutorial or Cheats Request] Cheat Engine Items Value for FE: Fates Citra Background: So I'm trying to play FE:Fates Special Edition (USA) Decrypted Rom in Citra (with Cheats Supp. So for an 8 char meter you have 40 segments to play with. It is great for working DX! • Bands Touch on any band buttons to quickly switch to the band • WPM (CW) Set the CW sending speed of the keyer • TON(E) Set the sidetone frequency • FRQ Allows you to enter a frequency directly using a keypad shown below: Shortcuts The ubitx v6 has a few shortcuts:. Calibration. The dial will still show the transmit frequency, therefore the dials of both radios will be the same, assuming the calibration is correct. 8" touchscreen on to that Radiuno I decided to take a new Ardunio Nano, solder on headers, and upload the UBITX_CEC. From Wikipedia, the free encyclopedia. I calibrated my uBITX (v6) today and made my first SSB QSO with the rig. Full solder and working well EU1KY V3 antenna analyzer frontend board: The EU1KY antenna analyzer V3 is an open source project to build your own, reasonably cheap but very functional antenna analyzer that is a handful tool for tuning coax-fed shortwave ham radio HF/VHF, and CB antennas. X-108 Info X108G Radio Calibration. As a measure of sound intensity, a zero-decibel (0 dB), reference is considered to be the lowest level audible to the human ear; the speaking voice of most. Hambuilder will continue to business as usual as long as government regulation allows. Please read number 4 above. The blog entries have now been archived and are not available anymore; however, all info should be present in this article. The vast majority of phone QSOs on 40 take place on whole integer kHz frequencies: 7164 kHz, NOT 7164. Si5351 synthesizer (VFO & BFO). Sometimes I get 2 or 3 and make one working ones. VFO Calibration, USB. However, a rough check may be performed by receiving radio station WWV, WWVH, or other standard frequency signals. exe by UZ7HO. That's because the LM386 was being pushed to the rail by the 2. Get on the air!. 2 Mhz and this is what I saw on my scope. Connectors: Power, 3. Ubitx operators can access a host of menu options simply by depressing the tuning encoder. Sensitivity: about 0. This is a wireless Radio frequency technology introduced by a company called Semtech. 4:1 at the lower band edge tounder 1. cursor(); lcd. 75mhz crystal or ceramic oscillator will put the radio at 7. Otherwise deal is final. Waveform Generator control is via the Feather SPI bus; chip select is provided by the Feather's D6 logic pin. When i was starting with the Ubitx 5. The dial will still show the transmit frequency, therefore the dials of both radios will be the same, assuming the calibration is correct. at that time; until I got the values from another Ham. For example; say that the net is on 7. The calibration of a measuring tool, instrument or master is a comparison of a measurement reading from the item being calibrated with a known value from a reference instrument or standard. Ian Lee 5,166 views. Every effort was made by the authors to ensure the software is trouble free and safe to use. X-108 Info X108G Radio Calibration. He finally adopted Ian’s mathematical iteration approach using the uBitx manager 1. This can be fixed partially by calibrating the AFEDRI using the supplied software. The second part of the Cal, also in the 'Preferences' menu, is setting the displayed VFO frequency. Sometimes I spend days repairing one. A higher first Intermediate Frequency could have resulted in even better image rejection. It will stop the charging process if the battery cell. Project descriptions on this page are intended for entertainment only. Use SSB & soundmodem. 0 it was almost impossible to calibrate it. Ian Lee 5,169 views. Setting the BFO •Click on the encoder button to display the menu, rotate it to the "Setup On?" and click. * The 25 mhz oscillator is multiplied by 35 to run the vco at 875 mhz * This is divided by a number to generate different frequencies. How to adjust the frequency in uBITX Describe any unmodified uBITX based on (use 25Mhz x-tal) The PLLA frequency of uBITX is 875Mhz (875000000Hz) As the calibration value increases, the output frequency of uBITX decreases. The Arduino lcd library allows a cursor to be set under a VFO frequency digit for emphasis, such as to illustrate the current step size. This event will be at the Chick-Owa Sportsman's Club 9279 Ottogan St, Holland, MI 49423 from 6:15 PM to 9:00 PM. 5 to 30 Mhz) to much higher intermediate frequency that is at least 1-½ times the highest frequency of interest (for us that would be 45 MHz). at that time; until I got the values from another Ham. These are audio-frequency signals. With the bias properly set this time I was able to get much more power output on all bands. BITX & uBITX resources. For example; say that the net is on 7. This week George KJ6VU and Jeremy KF7IJZ are together in Xenia, OH for the 2018 Hamvention. There are now dozens of software defined radio packages that support the ultra cheap RTL-SDR. New mode called FT8: sensitivity down to -20 dB on the AWGN channel; QSOs 4 times faster than JT65 or JT9; auto-sequencing includes an option to respond automatically to first decoded reply to your CQ. Love QRP and I am so happy with the uBitx that I have sold all my commercial HF rigs as I tend to use the uBitx all the time and it has revitalised the excitement of ham radio for me after all if I need reliable communication I can use my mobile phone !!!!. There is no display routine for the Raduino so ignore the display (I told you this was a simple program). That takes a V6 Raduino and it will only work on V6 and V5 uBITX's, NOT the V4 and earlier due to the different IF frequency on the V4 and earlier radios. The dial will still show the transmit frequency, therefore the dials of both radios will be the same, assuming the calibration is correct. 0 has different calibration. Perform the actual calibration using IRCAL API commands. begin(9600) // Calibration and carrier adjust routines work but are commented out. Every effort was made by the authors to ensure the software is trouble free and safe to use. ) are instead implemented by means of software on a personal computer or embedded system. When i was starting with the Ubitx 5. Search Cancel. Never understood the desire for some operators to use QRP ( low power ). EU1KY V3 ANTENNA analyzer frontend board + SI5351 + SA612 + NE4558 + quarz - $20. However, 875Mhz is not generated correctly due. Panoramic Adapter Tap Boards. RF Explorer and Handheld Spectrum Analyzer model WSUB1G 240 - 960 MHz. I often refer to a Softrock SDR on this page but any SDR that will work with HDSDR may be used. Bought my ubitx kit last year. LED S meter Construction Manual – Issue 1. Tested to military standards. I find it difficult enough with 100 watts. Can I get a temporary tag? Yes, you can get a temporary registration permit (TRP) from local vehicle dealers, currency exchange offices, participating financial institutions, and your local Secretary of State office. These are easily stripped away by a 4-section, low pass filter in the front-end. 061 Initial display Using the CECSW, when powered-on, the uBITX will initially display something like this: THE TOP LINE MEANS: 1. 0 it was almost impossible to calibrate it. But so far looks pretty cool. uBITX now running on ARM Cortex M4. 0 Page 9 3 TRANSMIT POWER METER The LED S meter defaults to receive S meter mode, however there is a third input to the ADC which the microcontroller uses to monitor the transmitted signal. 00Mhz but I hear them clearly when the digital display on the uBITX reads 7. Facebook-f Twitter Youtube Home Radios uBitx Icom Icom 9700 Wouxun Yaesu Software About me Contact uBitx updates and Build guide Sidetone issues: Sidetone ‘vanishes’ after a start blip. ) will boost the bass. Calibration of the HV probe! It can be be done the easy way and the easier way! The easy way is to measure with your DVM a DC voltage of 300 to 500V and then adjust the multi-turn pot to see the same voltage divided by 100. Calibration is a 2-step procedure that involves accessing the 'Preferences' menu and setting the BFO so that noise from the speaker falls within parameters described here. 8 thoughts on " The uBITX Transceiver: Pricing and more details " Roselio Ko March 6, 2018 at 3:56 am. 3 kHz! If you call CQ on a non-integer frequency, people get confused and irritated. 1:1 at 146 MHZ. The vast majority of phone QSOs on 40 take place on whole integer kHz frequencies: 7164 kHz, NOT 7164. Made in Logan Utah by Apogee. 5db loss in my leads would be about right and that is what is showing now, they are after all cheapest crap leads from China, not high end leads you would use in a lab. at that time; until I got the values from another Ham. Fluke Multifunction Calibration Tools are designed to calibrate almost anything. 061 Initial display Using the CECSW, when powered-on, the uBITX will initially display something like this: THE TOP LINE MEANS: 1. Improved performance of decoders for JT65, QRA64, and MSK144. Get on the air!. So, I've tested my Ubitx with a WSPR spotting just after a cold boot (after at least one day without turning it on) and after a while, at least 30 minutes. Notes about "Subharmonic" mixing. Your uBITX BFO Calibration value is one of two. This article gathers my previously posted blog entries concerning the FT-817 CAT. 00Mhz but I hear them clearly when the digital display on the uBITX reads 7. On this page we will attempt to list, categorize and provide a brief overview of each software program. The second part of the Cal, also in the 'Preferences' menu, is setting the displayed VFO frequency. We will be happy to resolve any issues you may have in a cordial and friendly manner. 8 Inch And 1602 Panel. There is no real way to get the radio any closer than 50hz off frequency. Next steps. For this reason, please save your transceiver settings using for example "FT 817 Commander" (you can google for it) before using this application. Total Ratings 10,. The author makes no claim as to the accuracy or completeness of the information presented. 00R software written by Ron Pfeiffer, W2CTX and Jim Sheldon, W0EB, including the minor hardware changes needed to make it work properly. This interval must be specified by the customer. This is actually Universal Radio's fourth location in its 75 year history. It is possible… Qrp Ham Radio The 100 Band 5 Seconds Radios Tecnologia Bands Orchestra. When i was starting with the Ubitx 5. I am still learning all the controls and functionality. Bought my ubitx kit last year. 35 MHz, sampling rate 1 MHz. An increase of ten decibels in the power of a signal is equivalent to increasing its power by a factor of ten. We also greatly improved the calibration routines for both the Master a 10 channel frequency/mode memory was added along with its turn the uBITX on unless you connect a 3 volt backup battery between the "Vbat" pad on the Teensy 4 itself and ground. The operator must set USB mode and the frequency manually. - DDS frequency is temporarily set to zero on key-up: removes carrier leakage on key-up. Most of the info below is scattered here and there among various postings on my blog but I thought it might be helpful to have it summarized in one place. net provides recognition and enjoyment to the people who use, contribute. Accidentally wiped out calibration and BFO settings. DMR Radio Guide. You can slso post your query on the main uBitx Facebook groups at BITX40 and uBITX QRP Radio Kit. at that time; until I got the values from another Ham. We use 8 well-matched low cost crystals to obtain a very smooth lter. This is the date the calibration certificate expires and the logger becomes due for recalibration. SpectrumView software. 1:1 at 146 MHZ. The best SDR panadapter. I only wish if you were. Hambuilder will continue to business as usual as long as government regulation allows. Every effort was made by the authors to ensure the software is trouble free and safe to use. These are easily stripped away by a 4-section, low pass filter in the front-end. SDR-Kits new products announcements on 26 March 2020 - Magi-Cal Automatic Calibrator - this product has been re-launched is shipping now from stock - A 99% assembled version of the popular FA-VA5 Antenna Analyzer requiring only 10-15 minutes assembly time is now available at popular request - Back in stock is a new L-band Antenna AS154 with 10 meter RG58 cable for the 1540 MHz Inmarsat band. I guess its the challenge. To tune from 0 to 30 MHz, the first oscillator tunes from 45 MHz to 75 Mhz. 0, uBITX V6 Review on December 31, 2019 by Thomas. exe & Easyterm. RF Explorer and Handheld Spectrum Analyzer model WSUB1G 240 - 960 MHz. Ian Lee 5,169 views. At first I'll just have to do the math to get on frequency, but eventually I'll have a program. at that time; until I got the values from another Ham. Replace the R253 (a resistor) with a 0. Beacon every 5 Minutes. ubitx - sketch for the raduino to work with the ubitx transceiver - afarhan/ubitx. The full derivation requires a little extra work because of the use of the root-mean-square value of a sinewave, based on its peak voltage value. I am now within 1-3Hz of a signal on LSB. Before you use it check the frequency calibration of your transceiver against WWV on 10 MHz or RWM on 9996 kHz to make sure you don't transmit out of band. If you spin the dial to a known frequency and listen it to it on SDR, you will notice compared to your radio that the signal is off. net provides recognition and enjoyment to the people who use, contribute. Most of the menu options have logical defaults which are easily overridden. Micro-BITX Calibration Instructions January 2019 Steve N3SB The Micro-BITX frequency alignment process has been a common question on the CCARC email reflector over the past month or so, as more radio kits are being completed and fired up for the first time. Notes about "Subharmonic" mixing. -- How to keep receiver on the right frequency-- N0WVA's receiver sounded better, so I built a second N0WVA receiver John WJ0NF Reading SolderSmoke Ken W8KTP Ordering a uBITX Darren KG7KOI Listening Gary AK4NA New Word: "Cabinetize" FB OM! YESTERDAY MARKED 10 YEARS OF THE SOLDERSMOKE PODCAST-- A clip: The first minutes of SolderSmoke #1. Click on the encoder button again to display menu and this time it will show up a new option ‘Set Calibration?’. wa2eby kit, 2016-06-30 Display letters and words on the oscilloscope. Skeptics will claim this is nothing more than pseudo-science. USB calibration depends on LSB calibration, so make sure that LSB calibration has been done first! use another transceiver to generate a carrier at a known frequency (for example 7100. IJZ sit in for this roundtable. * QST 2015 - 2019 ARTICLES * First Issue of QST, December 1915 September 2015, pages 56-57 * * QST 2019 ARTICLES * December 2019 100/50/25 QST Dec Issue for: 1919, 1969, & 1994 W1AB 102 ANTENNA: Slot-Cube Antenna for 6-Meters, W6NBC 30-33 ARES: Public Service Mobile Radio: Safety, Ergonomics, and Laws K1CE 61-62 CLASSIC: The Galaxy III and V Transceivers KE8RN 100-01 DOCTOR: Low Sunspots Mean. Calibration can dramatically improve the quality of your data, making analysis easier and results more reliable.
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