Icom IC-T70A HD Instruction Manual - Page 24
Setting the squelch level, Monitor function
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4 BASIC OPERATION ■ Setting the squelch level The squelch circuit mutes the received audio signal, depending on the signal strength. The transceiver has 9 squelch levels, a continuously open setting and an automatic setting. ➥ While continuing to push [MONI](BAND), rotate [DIAL] to select the squelch level. • "LEVEL1" is loose squelch (for weak signals) and "LEVEL9" is tight squelch (for strong signals). • "Auto" indicates the automatic level adjustment by a noise pulse counting system. • "OPEn" indicates the continuously open setting. [DIAL] ■ Monitor function This function is used to listen to weak signals without disturbing the squelch setting; or to open the squelch manually even when mute functions such as the tone squelch are in use. ➥ Push and hold [MONI](BAND) to monitor the operating frequency. • The 1st and 2nd segments of the S-meter blink. Automatic squelch Two segments blink The [MONI] key can be set to a 'sticky' operation in the Initial set mode. See page 63 for details. Maximum level 17
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