AVT5151 B

The presented mini-transceiver was created on the basis of the 'Jędruś' listening receiver (AVT2818). By attaching several easily accessible elements, the SSB emission option was achieved. The output power of the device is small, it reaches up to 0.5W but with a good antenna it already allows for local communication.
The device uses a classic, single frequency conversion system and an unusual application of two popular integrated circuits TA7358. These systems include an RF amplifier, mixer and oscillator. Thanks to the use of their internal generators together with mixers and the unusual use of the NE592 system and diode keys, the entire minitransceiver system has been significantly simplified.

The device is especially recommended for short-wave electronics

Selected parameters:

• frequency range 3.65-3.75 MHz
• the possibility of setting the entire 80m band
• SSB emission (LSB)
• receiver sensitivity approx. 1uV
• transmitter power approx. 0.5 W
• power supply - 12-13.8 Vdc
• tile dimensions 125x90mm
• in the set a printed circuit board, a set of elements and documentation
  
  A detailed description in EP 10/08