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3 DMR function
Common Functions for Data Communications (Data Communications)
Type
Description
Operating the transceiver
Note
Configuration using FPU
'■ Standard model
■ Basic model
The following functions are used in common for data communications such as Status Call and Short Data Call:
・Number of Retries
・Transmit Busy Wait Time
・Maximum ACK Wait Time
・Preamble Length
If the transceiver does not receive the acknowledgment after the transceiver sends data and the time configured
for Maximum ACK Wait Time elapses, the transceiver resends data. Number of Retries is the number of times
for the transceiver to resend data.
The transceiver confirms that the traffic channel is available before sending data and then starts sending data
when the channel is available.
Transmit Busy Wait Time is the duration to wait for the traffic channel to become available.
A transmission is canceled when the channel is busy and the Transmit Busy Wait Time elapses.
Preamble Length is the function to extend the duration for sending a preamble when the DMR frame is sent.
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The receiving transceiver stands by to receive the next data for the time configured for Maximum ACK Wait
Time after receiving the previous data.
Extending the time for sending a preamble at the beginning of transmission makes the receiving transceiver
easier to receive a call and reduces missing of the beginning of the audio during the scan.
Number of Retries, Transmit Busy Wait Time, Maximum ACK Wait Time, Preamble Length :
Edit > DMR > General > Parameters
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