Soldering project kit!
HF Amateur transceiver "Druzhba-M" is intended for Amateur radio communication SSB and CW on all nine HF bands from 160 to 10 m. It is a further development of the transceiver "Desna" and represents a design available for building for the radio Amateurs of average skill. In the design of the transceiver "Druzhba-M" the task was to create an inexpensive device with acceptable electrical characteristics with high repeatability and accessible to the majority of radio circuitry. This design does not contain any original circuit design, is a constructor of units previously described by other authors and well known in the World.
The transceiver has the following main technical characteristics:
- The sensitivity of the receiving path when the ratio signal / noise 10 dB, no worse than 0,25 µV;
- 2-signal selectivity in the detuning signal of 20 kHz at least 80 dB;
- Adjustment range of Automatic Gain Control (AGC) not less than 80 dB when the output voltage changes on 6 dB;
TRX "DRUZHBA" is a Constructor. It means, that each unit could work separately and could be replaced by another compatible one.
TRX Druzhba consists of the following units:
- Synthesizer 9 band + Decoder for switching bands
- VFO amplifier
- Bandpass Filters BPF-9
- Lowpass Filters 9 bands
- Linear Power Amplifier 30-40 Watt (depends of the fine turning)
- Power supply unit for AC220V (transformer 220V is not included)
Each kit consists of all elements for building the board.
Each kit could be ordered separately or together ALL KITs in One package.
Support and warranty:
- 2 weeks for elements or missing parts.
- Not limited free support by email (help with the project, with fine tuning and etc)