Icom IC-M802 Instruction Manual

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Contents

Icom IC-M802 Instruction Manual Manual pdf 15 page image

DD Clarity controlVoice signals received from other stations may be dif-ficult to receive. This may sometimes happen if a sta-tion is transmitting slightly off frequency. In suchcases, you can compensate by using the clarity con-trol.When receiving weak signals with adjacent strongsignals or noise, the AGC function may reduce thesensitivity. In this situation, the AGC function shouldbe deactivated.q Push [F] then [RX CLAR] to switch the function ONand OFF.• “CLAR” and shifting value appearw Rotate [CH] to improve the audio readability.• Adjustable between ±150 Hz in 10 Hz steps.[RX CLAR ][CH] [F] Functions for receive (continued) CW operation124 RECEIVE AND TRANSMITThe transceiver has the following CW keying featuresselectable in set mode as described on p. 00.➥ Full break-in (receiving is possible while transmitting)➥ Semi break-in (automatic transmission with keying)➥ OFF (manual transmission is necessary before keying)q Connect a CW keyer or an external electronickeyer to the [ACC] socket as shown at right.w Select the desired channel to operate CW mode.e When the selected channel is not in A1A mode,push [MODE DIM] several times to select “A1A.”r Operate the CW keyer to transmit a CW signal. NOTE: CW mode is not available in some versionsand CW narrow can be selected in set mode (p. 00)when an optional filter is installed (already built-into the GMDSS version).CW key connection12345678To pin 1To pin 2 FSK operationThe transceiver has FSK and J2B modes for FSK op-eration— use F1B when using the built-in oscillator;use J2B when using an AFSK terminal unit.q Connect an FSK terminal unit to the [ACC] socketas shown at right.w Select the desired channel to operate FSK mode.• FSK ITU channel group, Ch 4001 to Ch 2540, are avail-able depending on version.e Push [MODE DIM] several times to select F1B or J2B.r Operate the FSK terminal unit. NOTE:➥ FSK shift frequency and FSK polarity can be ad-justed in set mode (p. 00)➥ Some transceivers may operate 1.7 kHz higherthan the IC-M802’s J2B mode even when the samedisplayed frequencies are in use.FSK terminal unit connection12345678 To pin 1To pin 3FSK keyingAF inputFSK terminal unitAF groundTx/Rx controlGroundTo pins 2, 5