FX-4a. This unit replaces the original FX-4 that we introduced in 2013. The original FX-4 was an exceptionally strong transceiver and we received a tremendous amount of great feedback; especially from users who used SSB. It truly is a fun little radio that is perfect for SOTA or any of your portable uses.
The FX-4a is not a kit and comes fully assembled. It also includes a speaker mic and power...
The HobbyPCB RS-UV3 radio module is a 144/220/450 MHz FM transceiver board. The RS-UV3 is a low cost transceiver solution for Packet Radio, repeaters, Echolink stations, base station and mobile applications. The RS-UV3 supports multiple interfaces including microphone/speaker, line level audio (soundcard), TTL serial control and Arduino Shield connections. The RS-UV3 has an built-in battery charger...
The MilliWatter Extreme will let you explore the amazing potential of extreme QRP "QRPp". The MilliWatter Extreme is an RF-switched transmitter-attenuator that opens up the world below 1 Watt. These low power levels are not available for many transceivers. Few power meters are accurate at these levels either so the MW Extreme opens up a new world of challenge; a world that is inaccessible for many...
The Oak Hills Research OHR 100A single band CW transceiver kit is offered in 80, 40, 30, 20, and 15 Meter versions. Each can be aligned to cover 70-80Khz in a fairly wide band, but here are the defaults for which detailed specification is provided in the manual:
15M 21.000 - 21.070
20M 14.000 - 14.070
30M 10.100 - 10.170
40M 7.000 - 7.070
80M 3.500 - 3.570
... or other 70-80KHz...
AOR announced new QRP 5 Watts TRX-305A HF SDR Transceiver KIT at the Tokyo Ham Radio Fair. This is Full digital RF signal processing kit.
Main KIT board
Manual PDF File (in Japanese)
Photo by M0NKA
The original idea was born two years ago when I got really interested in the 70Mhz band and found out that I had to homebrew something as commercial gear at that time was not available. My choice was Softrock Ensemble and OZ2M transverter. The extra part was a bulky and power hungry PC. So I decided to replace it with an ARM microcontroller. This is how the TRX4M project was born...
SIDE KX COVER
Thermal formed LEXAN Polycarbonate (same material used in fighter cockpit windshields and bank teller window bullet proofing.)
Covers are individually cut in a CNC mill after forming, for uniformity and perfect fit
Completely covers all of the radios delicate LCD display, control knobs and buttons while in transport, keeping away dust and foreign debris