1. The [RF/SQL] knob should, initially, be rotated to the fully clockwise position. This is the point of maximum sensitivity.     2. Counter-clockwise rotation of the [RF/SQL] knob will gradually reduce the system gain. ADVICE: As the [RF/SQL] knob is rotated counter-clockwise to reduce the gain, the S-meter reading will rise. This indicates that the AGC voltage being applied to the receiver is increasing (this causes a reduction in receiver gain). Rotating the [RF/SQL] knob control to the fully counter-clockwise position will essentially disable the receiver, as the gain will be greatly reduced. In this case, the S-meter will appear to be "pegged" against the right edge of the analog S-meter scale. QUICK POINT: Reception frequently can be optimized by rotating the [RF/SQL] knob slightly counter-clockwise to the point where the "stationary" meter indication is set just about the same as the incoming noise level. This will reduce the RF gain to find a level of improved signal to noise ratio. The RF Gain control, along with the IPO and the Attenuator features, all affect the system receiver gain in different ways. The IPO generally should be the first feature engaged when dealing with a high noise level, or a crowded, high-level signal environment. Also, the IPO genearlly should be the first feature engaged, if the frequency is low enough to allow the preamplifier to be bypassed. Thereafter, the RF Gain and Attenuator features may be employed to provide precise, delicate adjustment of the receiver gain to fully optimize performance.

Switching the Knob Functions You may switch the [RF/SQL] knob from tje RF Gain Function to the Squelch Function via Menu item 038. Press the [MENU] button to engage the Menu mode. Rotate the [VFO-B/CLAR] knob (or press the [▲/▼] button) to select Menu item "038 RF/SQL VR", then press the [SELECT] button. Rotate the [VFO-B/CLAR] knob (or press the [▲/▼] button) to select "SQL" (replacing the default "RF" selection). Press the [SELECT] button, then press the [MENU] button to lock in the new setting and exit to normal operation. End of "RF Gain"