Icom IC-R8600 Instruction Manual - Page 21
BASIC OPERATION, Adjusting the volume level, RF gain/SQL level/Audio tone, Noise squelch
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3 BASIC OPERATION Adjusting the volume level Monitor function Rotate to adjust the volume level. ••While adjusting, the volume level is indicated in %. LThe status or position of each key or dial is stored and recalled when the power is turned ON. RF gain/SQL level/Audio tone 1. Push . 2. Touch an item to select. (Example: RF GAIN) zzHold down to forcibly open the squelch. ••[MONI] appears and [RECEIVE] lights. 1 LY ou can change the function in the digital mode setting on the MENU screen. 2 MENU » SET > Digital Set > Digital Monitor 3 About the VFO and Memory modes 4 zzPush V/M to select the VFO or Memory mode. VFO mode Memory mode 5 V/M 6 3. Rotate . ••Settable range RF GAIN (Sensitivity): 0 ~ 100% SQL (Squelch): 0 ~ 100% TREBLE (Higher tone): -15 to +15 BASS (Lower tone): -15 to +15 DDNoise squelch The Noise Squelch allows the audio to be heard only while receiving a signal that includes less noise than a set level. ••Activates when the squelch level is set to between 30% and 50% in the FM, AM, S-AM or DIGITAL mode. ••A higher level blocks weak signals. A lower level allows you to hear weak signals including noise. LWhile the squelch is closed, the noise audio is muted and the [RECEIVE] indicator is OFF. Group No. Channel No. 7 VFO mode You can set the receive frequency by rotating MAIN DIAL 8 or by directly entering it with the keypad. Memory mode 9 You can set the receive frequency by selecting a preset channel. See Section 8 for details. 10 Selecting the receiving mode 11 1. Touch the receiving mode icon. (Example: FM) 12 13 14 2. Touch to select the receive mode. (Example: AM) 15 DDS-meter squelch The S-meter Squelch mutes the speaker sounds when the signal strength is less than the set value. ••Activates when the squelch level is set to between 50% and 100% in any mode. ••The squelch level is indicated by the position of "▼." S-meter squelch level LWhen the received signal is stronger than the S-meter squelch level designated by the "▼," the squelch opens. LLInformatio When the squelch circuitry activates to emit the audio, "Squelch opens." When the squelch circuitry mutes the audio emission, "Squelch closes." DDRF gain Normally, set the RF gain to maximum (100%). ••You can adjust the RF gain to decrease the interference or noise from a nearby strong station. •• indicates that the RF gain is reduced. LIf a strong signal is received and (Overflow) appears, reduce the RF gain until disappears. MODE screen LWhen the mode key is touched for 1 second, the selectable modes differ. See the table below. ••Selectable modes when the mode key is touched Mode key Receiving mode [FM] FM [WFM] WFM [AM] AM ↔ S-AM(D)* [SSB/CW] USB* ↔ CW* [FSK] FSK* [DIGITAL] D-STAR→P25→dPMR→NXDN-vn →NXDN-n→DCR→D-STAR *Touch for 1 second to select other modes. See the table below. ••Selectable modes when the mode is touched for 1 second Mode key Receiving mode [AM] S-AM(D)→S-AM(U)→S-AM(L)→S-AM(D) [SSB/CW] CW ↔ CW-R, or USB ↔ LSB [FSK] FSK ↔ FSK-R LYou can chose the receiving mode icons that appears when you touch the [DIGITAL] key. MENU » SET > Digital Set > Digital Mode Select 3-1 16 17 18 19 20 21