Repeater Functions
18-3
Examples:
Assume that the repeater is in carrier access mode, and that PL access is
desired. The proper command would be:
(PW) 57 00 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, since
noise falsing from unsquelched audio is eliminated. Also, COR drops out more
quickly than PL, allowing a quick dropout result. Enter this command:
(PW) 57 00 3 *
Mode 4 allows both carrier access and PL 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.
Anti-PL is used when the repeater is co- channel with another, PL-accessed
repeater. Users of the second system are kept out of the Anti-PL system.
If you broadcast Newsline Report, the no access mode (mode 0) means that
transmissions on the repeater input are ignored and can’t interfere with the
broadcast.
If you need to control the system on its input, place the DTMF decoder in a PL
mode.
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