For the pads marked RX, TX, NC and NO, the connection is to the upper pad and the lower pads are connected to
ground on the board as shown above.
For antenna switching between a receiver and Transmitter, you will only need to use the ANT, RX and TX
connections.
The Auxiliary contact set can be utilized to mute audio of a receiver by switching its output to a resistor during
transmit instead of the speaker or headphones.
This would be accomplished by connecting the audio to the Aux input and connecting a speaker to the normally
closed (NC) output and a 10 ohm or so resistor from the normally open output to ground.
If the TR switch is embedded into another system, jumper wires can be used to the appropriate pads for signals,
power and control lines (if needed).
To connect to a BNC or other external RF type connectors, the center will go to the pads as shown below and the
ground is the adjacent pad.
You can see the pads with traces and connected to ground by looking at the back of the board. As a guide, the
trace locations are shown in the drawing below.
The additional switched contacts (if used), are connected in the same manner.
Easy TR Switch V3 20171212
6
Connect
center of
BNC here
Connect
center of
BNC here
Connect
center of
BNC here
Connect
center of
BNC here
