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40 ch am mobile transceiver

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Instruction manual (88 pages)

Table Of Contents

Table of Contents

et the Channel Selector to a channel where no signals are present or

wait until signals cease on your channel. Then, rotate the Squelch

control in a clockwise direction to the point where the background noise

just stops. Now, when a signal is present, you will hear it, but will not be

disturbed by noise on the channel between signals. When properly set,

the Squelch keeps the receiver "dead" until a signal comes in on that

channel. However, do not set the Squelch too high, or weak signals will

not be able to open the Squelch circuit. To receive very weak signals, it is

best to leave Squelch set to the minimum position by rotating the

control maximum counterclockwise. The Squelch circuit in your

transceiver is an advanced design. It uses an operational amp

accomplish a hysteresis action. The result is that when you set the

Squelch for a precise signal level, if that signal level increases or

decreases in strength, the Squelch circuit will follow this change. With

conventional Squelch circuit , often a signal which changes strength get

"chopped" by the Squelch circuit and a portion of the message

With a hysteresis Squelch, you get it all

Press the push-to talk button on the microphone and hold about

5-7 cm from your mouth and speak in a normal voice.

To receive, release the push-to-talk button. Be sure the mic plug is

ﬁrmly connected to the jack.

NOTE: shouting into the mic will not increase your power or signal.

An internal

circuit

maximum modulation, so speak