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Theres no relay chatter keeping you from enjoying QSK
Has transmit LED
5 1/4" x 1 3/4" x 4 3/4â€
plus the small bias change from near class B to normal class AB
MFJ-1707B, AUTOMATIC RF SENSE ANTENNA SWITCH Giant Book of Kit Theres no relay chatter keepingAuto Switch XCVR between 2 antennas Automatically switches separate transmit and receive antennas on transceivers with only one antenna port. RF sensing for radios that do not have a keying output when transmitting Good Isolation between transmit and receive ports. Good SWR characteristics up to 450MHZ COntrol Line input for radios that have a key line output. An AUX output that can be set to ground to mute or open to mute to key other devices. Power