Configuring Miscellaneous Items - Tait TB8100 User Manual

Configuring Miscellaneous Items

Tx relay operation
TB8100 Service Kit User's Manual
The Miscellaneous form (Configure > Base Station > Miscellaneous) gathers
together a number of settings.
The Service Kit lets you enable the control of an antenna relay and configure
its operation. The base station's reciter must be fitted with a system interface
board that has a Tx Relay Driver line for connecting to the antenna relay (see
Configure > Base Station > System Interface for pinout information).
Antenna relays (also known as coaxial relays) are used in simplex applications.
Before the transmitter keys up, the base station activates the relay, disconnecting
the receiver and connecting the transmitter to the antenna. It waits for the 'relay
closing settling time', and then powers the transmitter up. After it powers the
transmitter down, it waits for the 'delay before relay opens', and then opens the
relay.
To enable and configure the operation of an antenna relay
1. Select Configure > Base Station > Miscellaneous
2. Select the Tx relay operation check box.
3. Adjust the values of the Relay closing settling time (A) and the Delay
before relay opens (B) boxes to reflect the expected delays in switching
the relay.
4. Set up Task Manager tasks that disable the receiver when the transmitter is
operating (see "Simplex Operation" on page 196).
Configuring Miscellaneous Items 79