Latest Entry
Transceivere Homemade
sep 17, 2009 Homemade 5 Comments
Homebrew transceivers by radio amateurs. Some of these are high performance transceivers, even they are homemade.
Keywords: homebrew hf, radio transceiver, homebrew ssb, homemade hf, homebrew vfo, homemade vfo, digital DDS, transceivers, homebrew hf transceiver, DDS VFO, ssb transceiver, homemade, hamradio, amateur radio, SSB, band, Single Sideband, USB, LSB, CW, receiver, transmitter, exciter, power amplifier, bandpass filter, automatic gain control (AGC), cw 80, ssb radio, homebrewing, QRP SSB transceiver, QRP CW, transceiver qrp, build ssb transceiver, 3.5mhz transceiver, HF all band SSB-CW, transceiver schematic, homemade hamradio.
Homemade HF transceivers:
- Multiband homebrew HF transceivers
- 160m (1.8 Mhz) homebrew transceivers
- 80m (3.5 Mhz) homebrew transceivers
- 40m (7 Mhz) homebrew transceivers
- 30m (10 Mhz) homebrew transceivers
- 20m (14 Mhz) homebrew transceivers
- 15m (21 Mhz) homebrew transceivers
- 10m (28 Mhz) homebrew transceivers
- Other homebrew transceivers
- Hambrew / homebrew / homemade links
HF multi-band transceivers (homebrew)
Visit DXZone – Technical Reference – Ham Radio homebrew and home-made
The HF all-band homebrew transceiver by jg1ead
The home made transceiver covers 3.5 to 3.6 MHz and is CW only. It has the following features:
Characteristics and composition:
- Frequency coverage : 3.5MHz-28MHz 8band
- Mode : SSB/CW
- TX-final : 2SC1947
- Power output : 1W
- RX-RF amp : 2SK125*2(Grounded Gates)
- 1stIF : 48.7265MHz
- TX/RX 1st mixer : MiniCircuit MCL-1
- RX 1st IF amp : MC1350P
- 2ndIF : 11.2735MHz
- TX/RX 2nd mixer : MiniCircuit MCL-1
- RX-2nd IF : MC1350P*2
Schematics diagram are available: homebrew transceiver
T03DSP High Performance Transceiver with DSP IF processing
The goal of this project was to build a high performance HF transceiver with DSP IF processing. I did not try to archive as high parameters as possible, I just tried to get most from the available technology (i.e. mechanical and electrical parts and assembly technology). I tried to keep the design as simple as possible. The design widely uses “software” techniques that allows easy modifications and opens new possibilities.
Features
- Amateur radio bands (160m,80m,40m,30m,20m,17m,15m,12m,10m)
- 0.25 Hz and more (two tuning speed for each mode is available), implemented adaptive tuning step (1x..20x)
- USB, LSB, CW (Normal/Reverse), AFSK, RTTY (decode only by now), (PSK31 with decoder and coder will be implemented in software later)
- Selectivity 100Hz-3000Hz bandwidth in 50Hz steps
- Automatic memory keyer (built in)
- Automatic contest number generation, 5 different number formats available
- Digital RX:S-meter and calibrated input signal power meter
- Digital TX:Output power, SWR and compression (displayed simultaneously)
- 24h real time clock (powered from ionistor during power off periods)
- AFC and tuning indicator in RTTY mode
- Adjustable voice operated squelch for SSB mode
- CAT system compatible with Kenwood command set
- Built in dual tone generator for transmitter testing
T03DSP audio amlifier
Transceiver DSP
Transceiver display
Schematics diagram are available: High Performance Transceiver
