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7K • Chapter 11
Note: These commands only affect the DTMF Decoder access mode. They
may be different from receiver access modes, if desired.
Warning: If you set the DTMF Decoder Access Mode on all receivers to
Mode 0 (No Access) you will only be able to control the controller via the phone
line!
Example:
To prevent DTMF commands from being decoded from Receiver 2, enter the
following command to change the mode to Mode 0 (No Access):
(PW) 57 07 0 *
Assume that the DTMF decoder for Receiver 1 is in Mode 1 (Carrier Access),
and that Mode 2 (PL Access) is desired. Enter the following command to
change the mode on Receiver 1:
(PW) 57 06 2 *
A better mode for many repeater installations is Mode 3 (And-PL Access). This
mode has better rejection of adjacent-channel interference than Mode 2 (PL
Access), since noise falsing from unsquelched audio is eliminated. Enter the
following command to change the mode on Receiver 1:
(PW) 57 06 3 *
Mode 4 (Or-PL Access) allows both Carrier Access and PL Access operation.
Since PL is more easily detected, PL users will find increased range. Carrier
Access users are unaffected. The squelch may be tightened to suppress band
opening problems.
Mode 5 (Anti-PL) is used when the repeater is on the same channel with a
PL-accessed repeater. Users of the second system are kept out of the Anti-PL
system.
11-6
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