Kenwood TM-621A Instruction Manual

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@) Microphone connectorPlug the standard or optional microphone into this jack.GND (PTT)(1)Microphoneaudio——(7)GND(Microphone)@ PTT (STBY) switch ~ (Approx. 150 mV/600 Q)(©)8 V/Max. 50 mA@ DOWN(@) UPFront view(8) MHz keyThis key is used to change frequency in 1 MHz stepsduring VFO operations.Pressing and holding the key will continuously changethe frequency in 1 MHz steps.@) Sub Tuning controlThis control is used to select the desired receive fre-quency and Memory channel of the SUB band.( LOCK switchThis key will deactivate all functions except the PTTswitch.() BALANCE controlThis control proportions the total audio volume amongthe two bands.MAIN position : Audio only from the MAIN bandCenter position : Equal audio from both bandsSUB position : Audio only from the SUB bandSUB SQL controlThis control is used to select the desired SQL thresholdlevel of the SUB band.(3) LOW keyThis key is used to select the transmit output powerlevel as follows:HI (no indicator): 144 MHz:45 W/220 MHz:25 W/430 MHz:35 WLOW : 5Wrs)TiesADA BAER To) OeEE fais 528880 ©[site eSvie =| oyeT ae I/Oooo (°° 2]Hm a GyA.B.C. DUAL BAND(4 DIM keyThis key is used to select either high or low intensity ofboth the LCD display and control's illuminations.For the key to function, it must be pressed within 5seconds after pressing the F key.1 A.B.C. (Automatic Band Change)When this key is pressed, the contents of the SUBband will be transfered to the MAIN band whenever asignal is received at the SUB band antenna, which isstrong enough to open the squelch. The contents ofthe MAIN band are transfered to the SUB band at thesame time.(® DUAL bandThis key is used to turn the SUB band ON or OFF.(@ BAND keyThis key is used to change the contents of the MAINband.11