Overview

DX Engineering Key Line Combiner-Splitter

DX Engineering Key Line Combiner-Splitter – DXE-KEYLINE-DUAL is yet another handy gadget that can take two ground-on-transmit amplifier keying lines from up to two transceivers or other devices and connect them to two amplifiers or accessories. All four connectors are female RCA phono.

After we came out with the DXE-KEYLINE-3 for one radio to key an amp and two other accessories, then the requests for the DXE-3RIGKEYLINE Combiner and this DXE-KEYLINE-DUAL two-rig to two amp combiner-splitter came in. It really isn't surprising; some hams have two radios and two amplifiers or an amp and an accessory that both need to be keyed. While a couple of coax switches can handle the RF, now the DXE-KEYLINE-DUAL handles the PTT keying from two radios going to two amplifiers or to one amp and one accessory.

Each keying input and output of this device is guarded with a separate 45V 2A Schottky diode, providing ground-on-transmit isolation between each keying input and output line. Therefore, this combiner-splitter will keep the load or voltage of any one device from affecting the others. This device is passive, meaning that it requires no power to function. It is not a transistor buffer and it has no relays.

The DX Engineering Transceiver Key Line Combiner-Splitter DXE-KEYLINE-DUAL allows two ground-on-transmit keying lines inputs to key this unit's two outputs. It's another handy device that can be used in lots of ham shacks and it's a great gift item for the Amateur Radio operator who has everything… except one of these gems!

Documentation