Icom IC-7100 Instruction Manual - Page 6

1 PANEL DESCRIPTION Controller - Front panel q w e r t y u PWR AF RF/SQL i7100 TX / RX CLR M-CH BANK PBT RIT RIT TUNER/CALL MENU NB NR MIC/RF PWR SPEED/PITCH P.AMP ATT NOTCH DR SET QUICK AUTO TUNE RX�CS SPEECH XFC MPAD io !0 !1 q P OWER SWITCH•AF VOLUME [PWR]•[AF] (p. 3-2) ➥➥Push to turn ON the transceiver power. • First, confirm the DC power source is turned ON. ➥➥Hold down for 1 second to turn OFF the power. ➥➥Rotate to adjust the audio output level. Increases Decreases w R F GAIN CONTROL/ SQUELCH CONTROL [RF/SQL] (p. 3-19) Rotate to adjust the RF gain and squelch threshold levels. The squelch removes noise output to the speaker when no signal is received. (closed condition) • T he squelch is particularly effective for AM and FM, but also works in other modes. • T he 12 to 1 o'clock position is recommended for the most effective use of the [RF/SQL] control. • [RF/SQL] operates as only an RF gain control in SSB, CW and RTTY (Squelch is fixed open), or a squelch control in AM, FM, WFM and DV (RF gain is fixed at maximum sensitivity), when "Auto" is selected as the "RF/SQL Control" item in the "Function" Set mode. (p. 6-5) SET > Function > RF/SQL Control • When used as an RF gain/squelch control Squelch is open. Noise squelch (FM/DV modes) Recommended level Maximum RF gain RF gain adjustable range S-meter squelch • When used as an RF gain control (Squelch is fixed open; SSB, CW and RTTY only) Adjustable range Minimum RF gain Maximum RF gain While rotating the RF gain control, a faint noise may be heard. This comes from the DSP unit and does not indicate an equipment malfunction. • When used as a squelch control (RF gain is fixed at maximum.) Noise squelch (FM/DV modes) Noise squelch threshold (FM/DV modes) S-meter squelch threshold Squelch is open. S-meter squelch Shallow Deep 1-2