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TRX Axis
Under development, still only some info here
The transceiver is maximally unified in schematic diagram and design with TRX Amber 4 ". Differences:
- The analog signal processing and synthesis modules are replaced by a direct signal digitizing module. The open project of N7DDC "DDC Module 1" is used.
- The RF amplifier is excluded from the circuit, everything is subordinated to the main goal - the maximum achievable real selectivity in the receive mode (a high-quality signal without spurious emissions during transmission is also extremely important) while maintaining an acceptable budget of the transceiver. The input attenuator provides 0 to 30 dB adjustment in 2 dB steps, which is very important for adapting to specific broadcast conditions.
- The width of the panorama is 96 kHz instead of 48, so there will be no options with different sizes of displays, only 4 ".
Exterior design project
Board prototypes
Google Sites
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