MFJ-1708B, RF SENSING, TR SWITCH

MFJ RF Sense Transmit/Reveive Switch

Switches your antenna from receiver to transmitter using a relay. Shorts your receiver to ground during transmit. Use RF sensing with adjustable delay or PTT line. Has selectable open/short mute.

  • 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
  • Receiver protection circuit to limit any transmit RF spikes
  • Control Line input for radios that have a key line output
  • A Mute output that can be set to ground to mute or open to mute.
  • Power off bypass setting the transmitter to the antenna
  • Adjustable receive delay 50ms to 4 seconds

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