Front Panel Mic Connector
The front panel microphone connect is a standard RJ-45 that may be connected
to a hand microphone or desk microphone. Note that the local microphone only
works in DMR mode. PTT from the local microphone is transmitted as an ALL
CALL on both time slots.
Rear Panel I/O’s
The repeater’s rear panel contains several I/O ports including the cooling fans
and ground lug. They are defined in the following table:
Repeater Functionality
The repeater supports analog, digital and hybrid operation based on
programming. While the repeater may be programmed for multiple channels,
it can only operate on a single channel at a time. The following will describe
channel operation based on programming.
DMR Digital Channel
With a repeater channel programmed for DMR, a frequency pair is programmed
along with the transmit power and RX / TX color code. In addition, a channel
reservation duration is programmed. The channel reservation duration is the
time the repeater channel is held without needing for the subscriber devices to
handshake with the repeater after the initial handshake. During this period, the
repeater will continue to transmit even though there is no signal on the input
until the timer expires.
The repeater when it receives a DMR up-link signal from a device on its RX port
with the correct color code (CC) will repeat the signal on its TX port.
Analog Channel
The repeater may be programmed for analog repeater operation. The repeater
is programmed with the desired analog frequency pair, transmit power, and
encode / decode signaling (CTCSS or DCS). There is no transmit hang time
available in programming.
The repeater when it receives an analog up-link signal from a device on its RX
port with the proper signaling will repeat the signal on its TX port.
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