MFJ MFJ-1708

MFJ MFJ-1708

Automatic RF Sensing TX / RX Switch - 200 Watts PEP

HRO Discount Price: $79.95*


*After Coupons & Promotions.

MFJ-1708 Description     Hide

Do you enjoy using vintage tube type transmitters and receivers of your youth? It was a real chore to switch your antenna from transmit to receive and back -- it still is! This neat little MFJ automatic T/R switch senses transmitted RF and switches your antenna from receive to transmit using a relay. It shorts your receiver antenna input to ground to protect your receiver. It also provides an auxiliary contact closure to ground during receive (opened in transmit) for an "On-the-Air" sign or other use.
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