User's Manual

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KNG Mobile Manual
Code Guard Receive
Analog channels programmed with a receive code guard will be heard only when the
proper carrier frequency and Code Guard value is received. Analog and mixed mode
receive channels will also unmute when the radio is in monitor mode.
Analog Squelch Control
Sub-audible signaling (CTCSS/CDCSS) is used to allow a group of radios to be
selectively called in an analog system. Programming the receive code guard equal
to zero allows for Carrier Squelch operation, where the radio will unmute whenever a
carrier is detected regardless of the transmitted Code Guard.
APCO Project 25 Digital Squelch Control
Network Access Codes (NACs) provide the digital equivalent of analog sub-audible
signaling (CTCSS/CDCSS) allowing a group of radios to be selectively called within
a system.
Users in the same area (using the same NAC) can be further divided into Talk
Groups, with each group having its own Talk Group ID (TGID). Group Calls are made
by designating both the users’ NAC and TGID.
Each radio also has an individual P25 unit ID. A Unit-to-Unit call contains the
addressee’s NAC, and uses the addressee’s P25 unit ID instead of the TGID.
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