MFJ-1708B SDR SMA HF RX/TX switch

MFJ-1708B SDR a T/R switch that allows you to use your regular radio together with an external SDR radio.

It provides a good insulation between the radio and sdr receiving branch antenna socket to reduce crush interference.

The MFJ-1708B SDR also has a built-in protection circuit for SDR receiving output for HF from the tranceiver.

Adjustable reception delay between 50 ms to 4 s.

Work with good SWR up to 450 Mhz.

In "off mode" connects tranceiver to the antenna


HF control for tranceivrar without TX key output when going into TX mode.

Powered on external 12vdc (DC cable included)