开云体育Years ago Gary made a relay-driven protector when it was seen that a large RF signal could damage the circuitry of the transceiver’s RX2 port. ? It turned out to be an excellent RF amplifier keying driver as the high quality of the driver relay provided a worthwhile isolation. ? There are a number of available products these days, I hear. Like ?I.C.E. Products, the KD9SV stamp is to investigate. ? Hal W4HBM ? ? |