MReX-5B Transmitter User Manual v2.07 Firmware
DMR Message Format
The WT Protocol can be used for sending DMR tier 1 messages. The protocol allows for an ID
(group or individual), colour code, radio type and message to be specified.
Different DMR Radio manufacturers frequently have differing DMR implementations that often al-
lows only same brand to same brand communication.
The WT protocol uses the commonly used “baud” field to set the DMR radio type. Sending a DMR
message to an incorrect radio type may result in the radio not receiving messages, or the message
being corrupted. Ensure that the group ID used is common to all same brand radios.
Basic Format:
WT1234567D6
x
TEST\r
Where all fields are previously defined, but ‘
x
’ is now a DMR “Type”.
Type ‘0’ – This is a short message type, often used by Hytera.
Type ‘1’ – This is a short message type, often used by Kirisun.
Example:
To send a DMR message to group ID 1001, colour code 6 with payload of “TEST MESSAGE” and
to a type ‘0’ radio (Hytera)
WT0001001D6
0
<SPACE>TEST MESSAGE<CR>
Example:
To send a DMR message to individual ID 104, colour code 6 with payload of “TEST MESSAGE”
and to a type ‘0’ radio (Hytera)
WT00001041d6
0
<SPACE>TEST MESSAGE<CR>
© WTE Limited, 2020 – Christchurch New Zealand
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