Kenwood NX-240 Function Reference page 112

9
ANALOG CONVENTIONAL SYSTEM
In an Analog Conventional system, communications are realized by sending and receiving analog signals on an analog
channel. The transceiver can make an Individual Call or a Group Call using Optional Signaling such as DTMF, 2-tone, and
FleetSync.
Subscriber Unit
Peer-to-Peer
Subscriber Unit
Figure 9-1 Image of Communications in an Analog Conventional System
9.1 Initiating Voice Communications
(Basic Transmission and Reception)
This section describes the basic methods for transmission and reception in an Analog Conventional system and the
relevant functions.
Receiving
Received audio sounds from the speaker, if the transceiver receives analog signals on the same frequency as that of the
channel on which the transceiver has waited for and the Optional Signaling matches the Optional Signaling preconfigured
for the transceiver. When the signaling (QT/DQT) is used, communications are possible if the received QT tone or DQT
code matches the QT tone or DQT code for which the transceiver waits.
Temporarily Disabling the Squelch (Squelch Off)
Squelch Off is the function to allow the transceiver to open the squelch and unmute the speaker.
With this function, the transceiver can unmute the speaker without receiving a carrier. A user can use this function to
monitor the availability of channels prior to transmitting in order to prevent from interfering with other parties.
To use this function, the Squelch Off or Squelch Off Momentary key must be assigned.
FUNC (K)/Ver 1.20
Peer-to-Peer
STATUS
1 2 3 4 5 6 7 8 VOLUME
CTRL OCXO BUSY TX POWER
MICROPHONE
COM OFF/
Repeater
Subscriber Unit
Mobile Station
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