MFJ-1708B-SDRS, SDR RF SENSING T/R SWITCH WITH SMA FEMALE 30W require hard-to-find 811A tubes to

require hard-to-find 811A tubes to retard harmful sagging and shorting

  2 Meter

connector and can be used to connect the single random wire in lieu of a

#14 gauge hard copper antenna wire

The classic is back with improved design including three separate air dielectric Hy-Q traps for 10 through 40 Meters -- 1

MFJ-1708B-SDRS, SDR RF SENSING T/R SWITCH WITH SMA FEMALE 30W require hard-to-find 811A tubes toRF Sensed TR Switches with a receive splitter designed to be used with a transceiver and a separate receiver such as the popular SDR receivers. The splitter gives high isolation between the transceiver and SDR Receive port to reduce crosstalk and interference between the two ports. The SDR port has a protection circuit to help prevent damage from transmit RF. Has a an SMA connector for ease of connection to SDR dongle receivers. RF Sensing for radios