Icom IC-7100 Advanced Instructions - Page 7
TX/RX LED, MEMORY BANK CONTROL [BANK], Mode: SSB/CW/RTTY/AM, PBT LED, What is the RIT function? - lighting control
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Previous view 1 PANEL DESCRIPTION Controller - Front panel (Continued) PWR AF RF/SQL i7100 e r t y u 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 i e TX/RX LED ➥➥Lights green when the squelch opens, or a signal is received. ➥➥Lights red when transmitting. r MEMORY BANK CONTROL [BANK] ❍ When both the PBT and RIT LEDs are OFF Rotate to select a Memory bank. ❍ When the PBT LED (y) lights green (Mode: SSB/CW/RTTY/AM) Rotate to adjust the receiver's IF filter passband width using the DSP circuit. ❍ When the RIT LED (u) lights orange Disable this control. t M-CH CONTROL•CLEAR SWITCH [M-CH]•[CLR] Push to select the action of the [M-CH/BANK] con- trols as the Memory/Bank selection, PBT control or RIT control. ❍ When the both RIT and PBT LEDs are OFF Rotate to select a Memory channel. ❍ When the RIT LED lights orange ➥ Rotate to adjust the RIT frequency shift. • The frequency shift range is ±9.99 kHz in 10 Hz steps. The control tunes in 1 Hz steps when the operating frequency readout is set to the 1 Hz step. ➥ H old down for 1 second to clear the RIT shift frequency. ✔ What is the RIT function? The RIT (Receiver Incremental Tuning) shifts the receive frequency without shifting the transmit frequency. This is useful for fine tuning stations calling you off-frequency, or when you prefer to listen to slightly differentsounding voice characteristics. ❍ When the PBT LED lights green (Mode: SSB/CW/RTTY/AM) ➥ R otate to adjust the receiver's IF filter pass- band width using the DSP circuit. ➥ H old down for 1 second to reset the PBT set- tings. • The PBT is adjustable in 50 Hz steps in the SSB/ CW/RTTY modes, and 200 Hz in the AM mode. At that time, the shift value changes in 25 Hz steps in the SSB/CW/RTTY modes, and 100 Hz in the AM mode. • The PBT controls function as an IF shift control. ✔ What is the PBT control? The PBT function electronically modifies the IF passband width to reject interference. This transceiver uses the DSP circuit for the PBT function. y PBT LED Lights green when the [M-CH/BANK] controls act as the PBT control. • Push the [M-CH] switch to select PBT control. u RIT LED ➥➥Lights orange when the RIT function is turned ON. ➥➥Lights orange when the [M-CH/BANK] controls act as the RIT control. • Push the [M-CH] switch to select RIT control. • The RIT control is the inner control. The outer control is disabled. i RIT KEY RIT (p. 5-4) ➥➥Push to turn the RIT function ON or OFF. • Use the [M-CH] control to vary the RIT frequency. ➥ Hold down for 1 second to add the shift frequency of the RIT function to, or subtract it from, the displayed frequency. 1-3