DRUZHBA. HF multi bander, SSB/CW Transceiver. Full Kit DIY + enclosure

Description

HF Amateur transceiver "Druzhba-M"
is intended for Amateur radio communication SSB and CW on 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;
- The output of the transmitting part of the transceiver 10 Watts.
This KIT consists of all necessary components and elements for assembly
1)
KIT - Motherboard of Transceiver DRUZHBA
2) KIT -
Power Amplifier 30-40W (Usually, it used as PRE-AMP for more powerful 200-1000W PA)
3) KIT - RF
Bandpass filters - 9 bands for RX path
4) KIT - RF Low-pass filters - 9 bands for TX path at output (to avoid the harmonics)
5) KIT - Digital VFO DDS 9-bands synthesizer + lcd Nokia 5110 (English menu)
6) KIT -  Decoder board (used for switch the relays on RF bandpass and lowpass filters)
7) KIT - Power Supply Board (input AC20-24V; 1,5-2A; output DC +5V, +12V, +24V). To get AC20-24 need a transformer. OR use standard power supply DC13.8V instead of this board and connect 13.8V to all boards directly.
7) Enclosure KIT
- High Quality Plastic case
- Front and Back
aluminum
panels (on front panels there are all labels, and holes)
- Back
aluminum
panel with all holes
- There is a aluminum base inside of enclosure. It has all mounting points for each board. Just plug in to its place
* note - Wire for connections between board is not included to a kit.
All KITS
consists
of all necessary components and has English manuals. If any difficult - we support Customers by e-mail.
DRUZBA is quite
complicated
homemade Transceiver and it requires an adjustment.
To complete the adjustment and fine tuning we recommend to have Oscilloscope, RF voltmeter, Multi-meter, AF generator, NWT500 or any RF sweep generator. Of course, need to have a
knowledge
how to use these devices. not enough to have them.
In case of questions - please, contact us.
RV3YF's team.
note - new design of cabinet since 22.06.2021.