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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, otherwise 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 mi-
nimum position by rotating the control maximum counterclockwise. The Squelch circuit in your
Transceiver is an advanced design. It uses an operational amp IC to 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 conventio-
nal Squelch circuit, often a signal which changes strength get “chopped” by the Squelch circuit
and you lose a portion of the message.
With a hysteresis Squelch, you get it all.
To Transmit:
1. Select the desired channel.
2. Press the push-to talk button on the microphone and hold it an angle about 5-7 cm from your
mouth and speak in a normal voice.
3. To receive, release the push-to-talk button.
Be sure the mic plug is rmly connected to the jack.
NOTE: shouting into the mic will not increase your power or signal. An internal circuit automatically
sets the mic signal for maximum modulation, so speaking loudly will give no advantage.
REMOTE SPEAKER OPERATION
A 4 Ohm speaker, rated at 3-10 watts, should be used for this function. Plug the speaker into the
EXT SPKR jack at the rear of the transceiver. When the external speaker is plugged in, the internal
speaker is disconnected. You can now monitor all incoming signals through your remote speaker.
