Operating Manual 6175.4760.02 – 01 3.167
M3SR Series 4100 Changing the Frequency Shift for F1D
3.7.2.30 Changing the Frequency Shift for F1D
Softkey Softkey Type Description
Listbox 1. Press 'Shift' softkey.
2. Select desired frequency from listbox,
42 Hz – 85 Hz – 225 Hz or 425 Hz
3. Press 'ENT' to confirm.
The frequency shift determines the frequency
deviation between the mark (to transfer a ‘1’)
and space (to transfer a ‘0’) frequency for any
F1D transmission or reception.
The IF filter bandwidths are selected automat-
ically.
For higher baud rates please use higher fre-
quency shifts as well.
For ALE operation (option) within link
mode analog voice / FF and selected mod-
ulation mode F1D the frequency shift is
85 Hz.
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