Universal Keying Adapter 3
05/05/2013
Page 1 of 10
Universal Keying Adapter 3+
The Universal Keying Adapter Version 3+ kit will allow you to key nearly any
transmitter or transceiver with a straight key, electronic keyer, computer serial or parallel
port or nearly any positive or negative logic signal. It can also be used as a rig-to-
amplifier interface. Active-low and active-high inputs are provided for use with a
straight key, bug, electronic keyer, transmitter or transceiver’s amp output as well as
computer control by either serial or parallel port.
Features of the UKA-3 Kit
Keys solid state, grid block or cathode keyed transmitters or
transceivers up to 400 V DC
Current capacity of 240 mA, AC or DC
Optional high-voltage/high-current relay available
Optical isolation between rig and key input
Works with any electronic keyer, bug or straight key
Computer input for use with contest software
Connects to computer parallel or serial port
Self contained with provision for AC or DC power
LED indicators show power on and keying active states
Compact size, good for integration into other equipment
On board header connection for custom applications or enclosures
Available with or without custom aluminum enclosure
