Icom IC-7610 Instruction Manual advanced - Page 13
Adjusting the Drive Gain level, IP Plus function - driver
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2. ADVANCED OPERATIONS Adjusting the Drive Gain level Adjust the transmitter level at the driver stage. This reduces distortion in the transmitting signal. LThis function can be used in all modes, except in the SSB with the Speech Compressor OFF. 1. Touch the meter to display the ALC meter. ALC meter 2. Push QUICK . 3. Touch "Drive Gain." IP Plus function The IP Plus function improves the Intermodulation Distortion (IMD) quality by optimizing the direct sampling system performance. This function optimizes the Analog/Digital Converter (ADC) against distortion when you receive a strong input signal. It also improves the Third-order Intercept Point (IP3) while minimizing the reduction of the receiver sensitivity. Touch [IP+] on the side menu to turn the IP Plus function ON or OFF. ON: Prioritizes the IP quality. OFF: Prioritizes the receive sensitivity. 4. Hold down [PTT] (or push TRANSMIT ). ••The TX/RX indicator lights red and is displayed. 5. Rotate MULTI to adjust the Drive Gain level. LAdjust until the meter reading swings between 30 to 50% of the ALC scale, when speaking into the microphone at your normal voice level or keying a CW key. 6. Release [PTT] (or push TRANSMIT ). ••Returns to receive. 9