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Radio Shack HTX-420, Owner'S Manual

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Radio Shack HTX-420 Owner'S Manual Download Page 11

BG TECH. 
 
 
 
 

VERSION III 
2001/2/28 

Note : Connecting a headset’s plug to the transceiver’s SPK jack automatically disconnects  the internal 

speaker. 

 

You can also connect an optional mono earphone to the SPK jack. This lets you use the transceiver’s push-to 

talk button to transmit as usual. Your local RadioShack store carries a wide  selection of suitable 

communication headsets, earphones, and separate components. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for HTX-420

Page 1: ...N III 2001 2 28 Cat No 19 1108 OWNER S MANUAL Please read before using this equipment HTX 420 Compact Handheld 2m 70cm FM Amateur Transceiver RadioShack RADIOSHACK CORPORATION FCC ID AAO1901108 JOB 38...

Page 2: ...and Radio means flexible transmitting options with the latest built in conveniences Its compact size and light weight are perfect for an amateur radio operation on the go Full 16 Key DTMF Dual Tone Mu...

Page 3: ...you connect an optional earphone external microphone or combination headset for more flexible operation External Power Jack lets you use an external power source for maximum output Back Light makes y...

Page 4: ...then the second button name For example F TOT means hold down F while you press TOT Button names are printed in small bold capital letters such as CLR or MR Words symbols and numbers that appear on th...

Page 5: ...Attaching the Wrist Strap Connecting a Microphone Speaker A Quick Look at the Display Operation Turning On Off the Transceiver Changing the Channel Frequency Up Down Changing the Volume Up Down Chang...

Page 6: ...ntry Other Special Features Locking the Keypad Lighting the Display Turning the Display and Keypad Turning the Key Tone On and Off Setting the Frequency Step Power Save Using Auto Power Off Time Out T...

Page 7: ...people who operate without a license Find out if there is a ham radio club in your area Most clubs welcome new transmissions write to the American Radio Relay League ARRL at the following address to...

Page 8: ...am All license level tests are administered by a three member Volunteer Examiner Team Contract the ARRL for a schedule of exam opportunities in your area The Technician Class license lets you use the...

Page 9: ...act on the radio to the lithium ion battery pack with alcohol from time to time Testing Internal Batteries To test the batteries hold down PWR for about 1 second The battery voltage briefly appears Th...

Page 10: ...iver and the two supplied screws to attached the supplied belt clip to your transceiver Do not over tighten the screws ATTACHING THE WRIST STRAP To attach the supplied wrist strap to the top of the be...

Page 11: ...cally disconnects the internal speaker You can also connect an optional mono earphone to the SPK jack This lets you use the transceiver s push to talk button to transmit as usual Your local RadioShack...

Page 12: ...ch CTCSS is enabled for receiving TSQ will appear when Tone Squelch CTCSS is enabled for transmitting and receiving 3 will appear to indicate a positive repeater offset will appear to indicate a negat...

Page 13: ...This appears when there is a receiving signal as a receiving indicator When it is flashes power save mode is enabled 13 LM L indicates the low TX power position M indicates the mid TX power position...

Page 14: ...rclockwise channel or frequency goes down Also you can use the universal type keys to turn up down F are pressed to step through the frequencies in 1MHz steps 144 145 146 Also you can enter the freque...

Page 15: ...ou select value pressing up down arrow key or rotating rotary switch press to save and exit Repeater offset frequency range 0KHz to 8MHz Default frequency step 5KHz Default repeater offset 600KHz Defa...

Page 16: ...s or rotate the rotary switch The data in the previous address is stored automatically 6 Do the same way of 4 7 To reconfirm DTMF code hold down F and rotate the rotary switch or F 8 After entering DT...

Page 17: ...E Weather SAME Mode On Off When you select WX SAME mode on or off pressing up down arrow key press to save and exit If mode is On umbrella icon will appear when the radio is tuned in weather channel D...

Page 18: ...lected frequency and exit the memory mode You can use up to 100 memory locations to store the frequency RECLLAING MEOMIRES MEMORY READER To recall saved memory settings press MR MR appears and the las...

Page 19: ...ared USING THE CALLING FREQUENCY MEMORY Press Call key to display the current calling frequency The frequency appears To change the store frequency press F Call CM after enter a new frequency in VFO T...

Page 20: ...p or down the band s full frequency range The decimal point flashes as the transceiver scans The radio stops on each active frequency for 8 seconds To change the scanning direction press up or down ar...

Page 21: ...me tone frequency when you use the transceiver in simplex operation It also lets you match your radio to the subaudible tone frequency used by a local repeater USING THE CTCSS TONES To enable only the...

Page 22: ...ou can also signal to another radio equipped to receive DTMF codes TRANSMITTING A DTMF CODED FROM MEMORY Press F D SEL and select desired the DTMF code memory pressing up or down arrow key or rotary s...

Page 23: ...ng appears with STEP on LCD Repeatedly press key or channel rotary switch until the desired new setting appears You can change the frequency step to 5 6 25 7 5 10 12 5 15 20 25 50KHz Press or PTT to s...

Page 24: ...SAME ALERT Press to select SAME mode Press up down key to select weather SAME on or off When you set Weather SAME area code and weather SAME is on the transceiver detect the SAME signal and display in...

Page 25: ...splay M Low display L in turn SKIP Press F M SKIP to turn this feature on or off When SKIP is on MR is blinking SKIP works in only memory channel RESETTING To reset press 6 MR PWR XBO CHANNEL OPERATIO...

Page 26: ...down it scans in sub frequency till M is released If released M key it waits 200 msec in main channel and back to the sub frequency The initial frequency in main and sub is same RECEIVING AIR BAND Sel...

Page 27: ...m Operating Temp 32 to 140 F 0 to 60 C Operating V oltage DC 5V to 12 V Modulation F3E Impedance 50ohm Dimension HxWxD 4 1 2 x 2 2 5 x 1 1 5 122 x 61 x 31 mm Weight with CHG Battery 10 6 oz 300g RECEI...

Page 28: ...BG TECH VERSION III 2001 2 28 Deviation 5kHz MAX S N Ratio 40dB Current Drain 1200mA DC 7 2V 1500mA DC 12V...

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