104 RECEIVE AND TRANSMIT CW operationThe transceiver has the following CW keying featuresselectable in set mode as described on page 12.➥ Full break-in (receiving is possible while transmitting)➥ Delay keying (automatic transmission with keying)➥ Off (manual transmission is necessary before keying)➀ Connect a CW keyer or an external electronickeyer to the ACC(1) socket as shown at right.➁ Select the desired channel to operate CW mode.➂ When the selected channel is not in CW mode,push [MODE] one or more times to select “CW.”➃ Operate the CW keyer to transmit a CW signal.NOTE:➥ CW mode is not available in some versions.➥ CW narrow can be selected in set mode (p. 12)when an optional filter is installed.CW key connection284 51 36 7ACC(1) socketpin 1pin 2CW key FSK operationThe transceiver has FSK and J2B modes for FSK op-eration—use FSK when using the built-in oscillator;use J2B when using an AFSK terminal unit.➀ Connect an FSK terminal unit as shown at right.➁ Select the desired channel.• FSK channels are available depending on version.➂ Push [MODE] one or more times to select the typeof emission, “FSK” or “J2B.”➃ Operate the FSK terminal unit.NOTE:➥ FSK shift frequency and FSK polarity can beadjusted in set mode (p. 12).➥ Some transceivers my operate 1.7 kHz higherthan the IC-M700PRO’s J2B mode even whenthe same displayed frequencies are in use.FSK terminal unit connection284 51 36 7ACC(1) socketFSK terminal unitFSK keyingAF inputTx/Rx controlGroundpin 3pin 4pins 2, 5