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C.
Mobile Calling a Free Repeater
The following illustrates a simple repeater/mobile handshake.
The bit transmissions are formatted as:
SYNC CS): AREA: GOTO: HOME: ID CODE: FREE: CHECK (C)
The following illustrates a Handshake sequence:
REPEATER #2 ACTION:
MOBILE ID #212
MOBILE SEES FROM THE
TRANSMITS DATA WORD:
REPEATER DATA WORD THAT
S:0:2:255:2:C
EVERY 10 SECONDS
THE HOME REPEATER CHANNEL
IS FREE
PUSH-TO-TALK SWITCH IS
PRESSED.
MOBILE TRANSMITS DATA WORD:
S:0:2:2:212:31 :C
"
CHECK FOR VALID AREA AND ID
CODE AND CONTINOUSL Y
IF AREA, HOME AND ID CODE ARE
TRANSMIT THE DATA WORD:
OK, THEN TRANSMIT VOICE
S:0:2:2:212:5:C
ALL MOBILES WITH ID CODE #212
UN SQUELCH
RELEASE PUSH-TO-TALK AND
TRANSMIT DATA WORD:
S:0:31 :2:212:31 :C
REPEATER SEES "31" CODE AND
TRANSMITTS DATA WORD:
S:0:31 :2:212:2:C
ALL MOBILES WITH ID CODE #212
SQUELCH
Figure 5-6
Simple Handshake Sequence
6104001
5-45
08
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