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Transmission Related Delays
54
SRL-35 Operator’s Manual
P/N: 1003224-01
Transmission Delays When the Radio TX Frequency is
Changed
• If the modem’s transmitter frequency (TX) is different than the receiver frequency (RX), there has to
be at least 40 ms delay from the Receive Data (RX) to Transmit Data (TX).
• If the transmitter frequency is changed by an SL-command, there has to be at least 40 ms delay after
the SL-command before the Transmit Data.
• If the transmitter frequency is changed from TX1 to TX2 by an SL-command during the transmission,
there has to be at least 40 ms delay after the SL-command before the Transmit Data.
Transmission Delays When Using a 12.5 kHz Radio
Channel
Transmission Delays without FEC-function (Forward Error Correction)
Delays are in milliseconds and with a 10% margin.
Figure 15: 12.5 kHz Radio Channel without Error Correction
Table 27. Number of Bytes Sent
Bps
1
10
100
500
1200
40
40
29
22
4800
34
34
31
22
9600
32
32
32
27
19200
32
35
64
193
38400
32
36
91
352
