Icom IC-7610 Instruction Manual advanced - Page 85
About the RF/SQL Control, RF/SQL Control, When using as an RF gain/squelch control
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11. OTHER FUNCTIONS About the RF/SQL Control MENU » SET > Function > RF/SQL Control You can set the AF RF/SQL (outer) control type in the RF/SQL Control item in the set mode. ••Auto: While in the AM or FM mode, used only as a squelch control. While in the SSB, CW, RTTY, or PSK mode, used only as an RF gain control. ••SQL: Used as only a squelch control. LRF gain is fixed at maximum sensitivity. ••RF+SQL: Used as an RF gain control, and a noise squelch or S-meter squelch. When using as an RF gain/squelch control Squelch is open RF gain adjustable range is displayed (RFG) Minimum RF gain Noise squelch (FM mode) S-meter squelch adjustable range Maximum RF gain Maximum S-meter squelch When using as an RF gain control (Squelch is fixed open: SSB, CW, RTTY, PSK only) Maximum RF gain RF gain adjustable range is displayed (RFG) Minimum RF gain Maximum RF gain range When using as a squelch control (RF gain is fixed at maximum.) Noise squelch threshold Squelch is open Noise squelch (FM mode) S-meter squelch threshold S-meter squelch adjustable range Maximum S-meter squelch 79