Icom ID-51A PLUS2 Advanced Owners Manual - Page 334
Heterodyne, Charging Power
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Previous view 16 MENU SCREEN ■■Function items (Continued) Heterodyne (Default: Normal) Function > Heterodyne Set the 1st Local Oscillator frequency. Depending on a combination of the two operating frequencies in the VHF/ UHF Dualwatch mode, the transceiver might generate a spurious signal on a specific receive frequency. This may cause the S-meter to fluctuate, even when no signal is received, for example. TIP: If this occurs, the Heterodyne function may help. The Heterodyne function shifts the 1st Local Oscillator frequency to the opposite side of the signal to change the frequency combination. Charging (Power ON) (Default: OFF) Function > Charging (Power ON) When the battery pack is attached, and the optional CP-12L, CP-19R or OPC-254L external DC power cable is connected, this function enables charging the transceiver's battery even if the power is ON. • OFF: The transceiver's battery cannot be charged when the power is ON. • ON: The transceiver's battery can be charged even if the power is ON. 16-79
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