HYT TR-800, Service Manual

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TR-800 Service Manual
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Glossary
Master Radio:
The radio that performs the transmitting functions in the TR-800 repeater station in general
uni-directional application.
Slave Radio:
The radio that performs the receiving functions in the TR-800 repeater station in general uni-directional
application.
Bi-directional Repeater:
A repeater configuration in which the master and slave radios perform both receiving and transmitting
functions. The audio and Rx carrier signals from the receiver of the slave radio are routed to the
transmitter of the master radio. Unlike the uni-directional case, though, the audio and Rx carrier signals
of the receiver of the master radio are also routed to the transmitter of the slave radio.
Cross-band Repeater:
A repeater in which the slave radio operates in a different frequency band than the master radio does.
For example, the slave radio operates on 162.075MHz in the high band VHF and the master radio
operates on 452.025MHz in the 450-470MHz UHF band. Cross-band repeaters may be either
uni-directional or bi-directional.
Relay Delay Time:
The time duration the repeater remains in Transmit mode after an active or valid signal is no longer
detected.
Repeater Knockdown:
To deactivate a repeater or to remove it from service. Only the slave radio turns on at power-up.
Repeater Setup:
To activate a repeater or to place it into service. Both radios turn on at power-up (repeater functional).
Single Band Repeater:
A repeater in which both the slave radio operates in the same frequency band. Example: receive at
455.075MHz and transmit at 460.075MHz in the 450-470MHz UHF band.
Uni-directional Repeater:
A repeater configuration in which the slave radio receives signals only from the field radios and the
master radio transmits signals only to the field radios.