• 07/23/2022 1:39 pm
  • Georgia
  • Sell

Many operators have chosen to install a second radio (maybe just a receiver, but typically a transceiver) in their station. Normally, this would require a second set of “operator interfaces,” such as headphones, mike, keyer, footswitch, etc. Although this approach has worked in the past, it is far from optimal. The DXD provides a simple solution: A single set of operator interfaces is switched, either manually or automatically, between the two transceivers.


  • A single enclosure handles all switching in both Manual and Automatic mode for the following inputs and outputs:
  • Inputs:
  • Radio 1 and 2 Audio (Main and Sub)
  • Microphone
  • CW keyer
  • Footswitch
  • Outputs:
  • Headphones
  • Microphone audio out to Radios 1 and 2
  • CW keyer output to Radios 1 and 2
  • PTT line output to Radios 1 and 2
  • · No programming required. Hook up the inputs and outputs you want, and operate immediately.
  • · High RFI immunity due to lack of microprocessors and analog amplifiers.
  • · Interfaces to CT, NA, TRLog, and WriteLog for automatic Single Op 2 Radio (SO2R) operations. All functions are available in Manual mode if no computer is available for Automatic control.
  • · Supports four audio streams: Main and Sub from both Radio 1 and Radio 2.
  • · Mix control to vary the blend of right and left headphone audio.
  • · Accepts keyer paddle for use by NA's and TR's computer CW keyer.
  • · Red and green LEDs graphically display which radio is active for receive and transmit.
  • · Auxiliary outputs available for special setups.
  • · CT's "early PTT" implemented to avoid key clicks.
  • · Passes through Kenwood transceiver band data on the LPT port to a Top Ten Devices band decoder.