WTE TReX-460, Руководство пользователя

Страница: 250 / 302

TReX User Manual v15.30 Firmware
DMR Translate Repeat Operation
The TReX can operate as a stand-alone translator repeater to forward paging messages to
support DMR radios. Without the need for any external equipment other than the TReX,
legacy paging systems can support newer DMR radios by intercepting POCSAG paging
messages and repeating in a translated DMR format (and optionally POCSAG concurrently).
In order to translate to DMR messages (configured through the MENU):
1. Set RF->RF to DUPLEX
2. Set RF->RX->FREQUENCY to the desired RX paging receiver frequency.
1. Set RF->RX->MODULATION to desired RX paging rate (e.g. 1200_12).
2. Set RF->RX->MODE to POCSAG_A
3. Set RF->RX->RIC RANGES to desired paging RIC range to receive.
4. Configure the DMR database. Set TX->DMR DB parameters.
1. Set CC (Colour Code).
2. Set TYPE (DMR Radio Type – refer to
DMR Message Format ) .
3. Set DMR transmit frequency (may be different than the TX FREQUENCY).
4. Load DMR group IDs. (At least one group must be configured in order to translate
and transmit).
5. Ensure the TX-DB is empty (the RIC DB should not populated unless transmission
to these codes is also required).
5. Set STORE FWD->OPERATION to a non DISABLED value.
6. If concurrent forwarding to POCSAG devices is required:
1. Set RF->TX->RIC DB to at least one forwarding POCSAG RIC address.
2. Set RF->FREQUENCY to the frequency the POCSAG messages will be
transmitted on.
3. Set RF->MODULATION to desired TX paging rate (e.g. 1200_12).
This mode is similar to the Store Forward mode, but incoming POCSAG messages can be
intercepted and retransmitted as a DMR messages. All DMR messages are transmitted as a
“Group” ID using the DMR database.
If required, use the command *DMR_DB to serially configure DMR radio colour code, type
and TX frequency.
© WTE Limited, 2022 – Christchurch New Zealand
Page 250 of 302