With power applied, the MFJ-1708SDR senses transmitted RF and switches the antenna from receive to transmit using a relay.
The antenna socket to the receiver is then grounded which protects the receiver. There is a delay circuit adjustment which gives you delayed switching. It also has a control line input, which allows switching from an external key, keyer or foot switch.
Key Specifications:
- RF sensed switch
- Fitted with relay
- Delay adjustment
- Power rating 200W SSB PEP
- 3 x SO239 sockets
- 2 x Phono sockets Control & Aux
- LED power indicator
- Power off defaults to transmit mode
- Power 12V DC
- Size 102 x 72 x 40mm
- Weight 200g
- MPN:
- No
