123456789101112131415166616 MAINTENANCE1 The SQL control is fully clockwise.2 The Attenuator function is ON.3 [SEND] was pressed, and thetransceiver is now in transmitmode.4 Mic [PTT] is pressed.5 The receive bandwidth wasincorrectly set.6 The wrong antenna connector(ANT 1/ANT 2) was selected.7 The receive preamplifier is OFF.The RF control was set too low.The wrong modulation mode wasselected.1 The SQL control was not setcorrectly.2 Less than two memory channelswere unlocked.3 Less than two memory channelswere programmed.With Group Scan selected, thechannel you want to scan is in adifferent group.The start and end frequencies areidentical.The impedance of the coaxial cableand antenna was not matched.• Tuning does not successfully finishdepending on conditions althoughthe SWR meter indicates smallerthan 3:1.The SWR of the antenna system is toohigh.1 The microphone plug was notinserted completely into the MICconnector.2 The Transmit Inhibit function is ON.3 CW or FSK was selected instead ofa voice mode.4 The filter for digital operation wasselected.5 The wrong antenna connector(ANT 1/ANT 2) was selected.No signals arereceived or receivesensitivity seemspoor.No signals arereceived or receivesensitivity seemspoor; S-meter isreading full scale.Received signals aretotally unintelligible.Memory Scan will notstart scanning.Memory Scan will notscan one of thestored channels; thedesired channel isNOT locked out.Program Scan willnot start scanning.Tuning does notfinish successfully.The internal tuner isbypassedimmediately aftertuning is started.You cannot transmiteven though youpress Mic [PTT] ortransmissions resultin no contacts.1 Turn the SQL controlcounterclockwise.2 Press [ATT] to switch OFF function.3 Press [SEND] to return to receivemode.4 Release Mic [PTT].5 Review sections “IF FILTER” and“CHANGING RECEIVEBANDWIDTH”, and set the controlsaccordingly.6 Press [ANT] to select the otherantenna connector.7 Press [PRE-AMP] to switch ONfunction.Turn the RF control fully clockwise.Press [LSB/USB], [CW/FSK], or[FM/AM] to select the correctmodulation mode.1 Adjust the SQL control to justeliminate background noise.2 Unlock at least two memorychannels.3 Store data in at least two memorychannels.Select the group that contains thememory channel you want to scan.Store different start and endfrequencies.Adjust the antenna system to lower theSWR.Adjust the antenna system to lower theSWR.1 Turn OFF the power, ensure the MICconnector has no foreign objects init, then plug in the connector.Secure the connector with thelocking ring.2 Change Menu No. 38 to OFF.3 Press [LSB/USB] or [FM/AM] toselect a voice mode.4 Change Menu No. 32 to OFF.5 Press [ANT] to select the otherantenna connector.1437151536,37483713141444394743152318141848