Have you ever wanted to try the new digital modes on a budget?
The QRPGuys DSB Digital Transceiver is a low cost, multiband, DSB transceiver kit, currently with three easy plug-in FT8 modules for 40/30/20m. This transceiver is an evolution compiled from various DSB and digital designs on the internet from ZL2BMI, VK3YE, AA7EE, BD6CR, and others. With help from Jim Giammanco, (N5IB) and finally Steve Weber, (KD1JV), we are offering a transceiver with an approximate output of 2.5 watts on 40m, over 1.5 watts on 30m, and over 1 watt on 20m. All the components are included for the main board (3.0″ x 3.12″) and three (40/30/20m) band modules.
The transceiver will run the popular free WSJT-X software (Windows, Linux, or macOS) that requires an accurate time synchronization program, such as Dimension 4, or many of the other free ones available. Users will need two 3.5mm stereo jumpers to your computer or tablet microphone/speaker jacks on the sound card.
The transceiver’s internal VOX relay circuit will switch to transmit automatically when it senses an audio output signal from the software on the pc or tablet speaker jack. The connections to the transceiver are BNC for the antenna, 3.5mm stereo jumpers to the computer audio jacks, and 12-14 VDC for the pcb mounted 2.1mm pin coaxial power jack. Approximate power consumption is about RX-15mA/TX-350mA.
The total weight w/band three modules is 3oz. (85gm). The normal tools required are a soldering iron with a small tip, rosin core solder, and small side cutters. The transceiver can be built in an evening. On a difficulty scale of 1 to 5, 5 being the most difficult, this is rated at 3 depending on your experience. Note also below, plans for building a 3.5″ sq. x 1.0″ high compact chassis from PCB material.
https://physics.princeton.edu/pulsar/K1JT/wsjtx.html – Latest WSJT-X program
http://www.thinkman.com/dimension4/download.htm – Coordinates computer time
https://time.is/ – Checks time accuracy of the computer time
Steve Andrew has just added a couple of cool new features to his popular Spectrum Analyser software which works with all the SDRplay RSPs. is latest r... Read more
Bidding gets under way today, October 17, on more than 230 items on the block in the 14th annual ARRL Online Auction. Bidding begins at 10 AM EST (140... Read more
Writing in a special World Radiocommunication Conference 2019 (WRC-19) edition of ITU News Magazine, International Amateur Radio Union (IARU) Secretar... Read more
The American Red Cross Puerto Rico Chapter renewed its Memorandum of Understanding with the ARRL Puerto Rico Section on October 10, citing mutually be... Read more
SCS, the company that created PACTOR, has unveiled software that offers the ability to monitor the content of PACTOR 1, 2, and 3 transmissions over th... Read more
Two separate groups took advantage of the Amateur Radio Emergency Data Network (AREDN) to monitor wildfires in California. The Mariposa Area Amateur R... Read more
See More: link Read more
his a ready power amplifier. You will need a power supply only! Water-cooled hermetically. You can turn the power amplifier. The water will not flow.... Read more
Liquid-based antennas offer unique advantages over metal ones By Michelle Hampson A new antenna that uses saltwater and plastic instead of metal to sh... Read more
“Since my 6m Delta Loop seems to work pretty well I decided to build one for the 30m band to be used with my Spiderbeam 12m mast. Unfortunately... Read more
“The Legendary G5RV Antenna” is the topic of the new (August 15) episode of the ARRL The Doctor is In podcast. Listen…and learn! Read more