Up for sale UR3LMZ
Attenuator Interface board with AUTOMATIC ATT and PTT SWITCH.This attenuator board is specially designed for easy and fast connection transverter board to your HF radio.
In this interface board there is no need to connect a PTT line. Activation of ATT and PTT occurs automatically when RF voltage is applied to the input of the board with a level of 3 volts. Also, the automatic hold of the PTT is carried out for 0.5 seconds to operate in the SSB mode.
The attenuator board of the will agree high power output of your transceiver with a sensitive input of a transverter board, and also ensures functioning on HF without additional switchings (bypass) full power – 100wt.
Typical minimum power output of HF radio of 8 - 10 Watts. The attenuator weakens on 30db to the level of a transverter, necessary for normal operation of a transverter board.
Don't give power on a board input in the VHF mode more 10wt is can kill her!!!
Don't forget to reduce the power of your transceiver to level 8 – 10wt by operation in the VHF mode!!!
Information about this attenuator:
- Attenuation Level - 30 dB (10W IN – 0.01W OUT)
- RF Input Power - 10 W Max
- PTT control - automatic
- DC current is 12V to 14V.
- Size of the board is 6.7cm x 4.2cm
To byu TRANSVERTER, TRASVERTER KIT or COMPLETE READY TRANSVERTER see here