Radio Shack 19-903 User manual

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OWNER’S MANUAL
19-903
!INTRODUCTION
Your Radio Shack 19-903 GMRS band transceiver is a portable, easy-to-use, two-way radio that you can
carry almost anywhere. It is approved with commercial-grade standards to give you clear and reliable
communication. This transceiver consists of 15 channels – 7 GMRS Channels, 1 Emergency Channel and
7 Interstitial Channels.
Your 19-903 transceiver operates in the General Mobile Radio Service, which is a personal radio service
available for personal communications with family members or other licenses. You can use the 19-903 for
recreational communications while you hike, ski, or fish. You can even use the 19-903 to coordinates
your personal or business activities with other family members. When you get a license to operate the
radio, you can let other members of your family living in the same household operate the radio.
Your transceiver is equipped with the following features:
PLL-Controlled Circuitry ---- provides accurate and stable channel selection.
Adjustable Squelch ---- helps eliminate noise between transmissions.
38 CTCSS (Continuous Tone Control Squelch System) ---- helps reduce interference from other
systems in the area operating on the same frequency.
Built-in Modulation Limiter Circuit ---- automatically adjusts for a wide range of voice levels to ensure
an effective transmission.
High/Low Power ---- helps you save power by choosing a suitable transmitting power for different range
of distance.
Battery Low and Transmit Indicator ---- indicates the battery pack’s current condition and the backlight
is on when you transmit or receive.
Supplied Battery Charger ---- conveniently recharges your transceiver’s battery pack.
Flexible Antenna with BNC Connector ---- provides excellent reception. The BNC connector is
designed in a way that you can easily attach and remove the supplied antenna or an optional one.
Earphone Jack and External Microphone Jack ---- let you use an earphone or external microphone to
help ensure effective communications in noisy areas.
Belt Clip ---- let you attach the transceiver to your belt or waistband.
JIS level 4 ---- offers you with excellent water-resistance.
We recommend you to drop down the transceiver’s serial number here for your record. For the number,
please refer to the transceiver’s back panel.
Serial Number_______________________
!USING THE RADIO
A. DISPLAY
Your radio comes with a multifunctional display and backlight. By pressing any button except the PTT, the
backlight will appear for 5 seconds. The liquid crystal display has been enlarged in the followings to show
all of the operating modes.
RADIOSHACK
CORPORATION
FCC ID : AAO1900903
EXHIBIT # : 7

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1. Shows the selected channel number.
2. Shows the selected privacy code number.
3. “FUNC”: Displays when the secondary function is enabled.
4. “SCAN”: Displays when the scan mode is activated.
5. “TX”:Displays when your radio is transmitting.
6. “BUSY”: Displays when a call is being received.
7. “DUAL”: Displays when the dual-watch function is activated.
8. “LOCK”: Displays when the keypad lock is activated.
9. “QUIET”: Displays when the QUIET mode is enabled.
10. “EMERG”: Displays when the Emergency channel is selected.
11. “C-TONE”: Displays when the Roger Beep function is activated.
12.
“HI LO”: Displays when the Hi/Lo transmit power is toggled.
13.
“WX”: Displays when the weather broadcast is listened.
14. “ALT”: Displays when the WX alert signal is received.
15.
“”: Displays when WX MUTE mode is enabled.
16. “”: Indicates the batteries are low. Replace the batteries when this signal is on.
17.
“ ”:Displays when the working channel is set to be skipped.
18.
“ ”: Displays when the key tone function is activated.

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B. FUNCTION AND LOCATION OF THE CONTROLS
1. “ON/OFF” Volume Control.
Your transceiver is off whenever the knob points to the ‘OFF’ position. Rotate this control clockwise to
turn on your radio and adjust the volume.
2. SQL Knob
Rotate the VOL/SW Knob to obtain the squelch sensitivity at threshold.
3. CH /Key Tone Button
Press CH to select a channel upwardly. Press and hold CH continuously for more than 1.5sec to
enter into the scan upwardly mode. Press CH will change the scanning direction downwardly. During
the scanning, press any key will exit the scanning mode.
Key Tone
Press and hold FUNC key, then press CH key to activate or deactivate the Key Tone function. Icon “
” will be shown if activated.
4. CH / Skip
Press CH to move one channel down. Press and hold CH for more than 1.5sec to enter into the
scan downwardly mode. Press CH will change the scanning direction upwardly. During the scanning,
press any key will exit the scanning mode.

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Skip
User can choose a desired channel from being scanned. Press CH or to go to the desired channel.
Press and hold FUNC key for, then press CH key to skip this channel from scanning. Icon “ ” is on to
indicate this working channel is set to be skipped. Repeat the above steps will cancel the skip function of
the channel.
5. Hi/Low / Automatic Power Off Button
Press this button to toggle the high or low RF power.
Automatic Power off Button
Press and hold FUNC/MON button, then press HI/LO button to enable or disable the auto power off
function. The display will show “AP ON” or “AP OF” for one second, when the timer is activated/deactivated.
The timer automatically turns off the unit when it is idle for 2 hours.
6. QUIET /QUIET Scan Button / Reset
Press QUIET button to enable or disable the QUIET privacy mode operation.
a) Hold down
QUIET button for 1.5 seconds until QUIET is displayed and the quiet code flashes.
b) Repeatedly press (or hold down) CH or CH until you see the code number you want to use.
c) Press
QUIET button to store the code.
To turn on the quiet feature, press QUIET until QUIET appears. To turn off the feature, press QUIET until
QUIET disappears.
Note: We recommend you to select a quiet code from the range 7-30. If you select a code below or
above that range, you must wait 1 to 2 seconds after holding down PUSH-TO-TALK before you start
talking.
QUIET Scanning (Only available under QUIET mode)
Press and hold FUNC key, and then press the QUIET key to enter into the QUIET Scan mode, and icons
“SCAN” and “QUIET” will appear on LCD. When matching with an appropriate QUIET code, the scanning
stops and the icon ‘QUIET’ flashes. Scanning goes on after the signal disappears. Press any key, except
the ‘QUIET’ key, will quit scanning and stay on the channel just scanned.
Reset
To reset the unit, press and hold the QUIET key and turn on the unit. Reset operation will clean all the set
channels and restore the current channel to CH0 with QUIET off, and Dual Watch CH0. Power is toggled
to low mode, key tone and C-tone function are activated.
7. WX Button
Press WX button to enable or disable the weather mode.
8. DUAL Button
In main mode, press DUAL button to enter GMRS dual watch mode, press and hold DUAL button to set
the current channel as the dual watch channel; In weather mode, press DUAL button to enter weather dual
watch. During the dual watching, press any key will exit the scanning mode.
9. Push-To-Talk button / Keylock /C-Tone
Speak and communicate with the others by pressing the Push-To-Talk button. Speak into the
microphone in a normal tone of voice when the TX icon is displayed. When you finish speaking, release
the Push-To-Talk button.
Your can also lock your radio setting to avoid accidental pressing of keys by activating the keypad lock.
Press and hold the FUNC button, then press the PTT button to activate or deactivate the keypad lock.
Press and hold the Push-To-Talk while turning on the radio will enable or disable the courtesy tone (C-
Tone) function.

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10. MON/FUNC Button
To hear everything happening on a channel, including weak transmission, hold down MON/FUNC button for
more than 1.5 sec. Release the MON/FUNC button to turn the auto-squelch back on.
11. External MIC/Speaker Jack
Connect an optional speaker/microphone or earphone in this jack.
12. Charger Jack
You can recharge the battery pack using the supplied battery charger. Plug the charger’s barrel plug into
the CHRG jack on the side of the unit, then connect the charger to a standard AC outlet.
13. Rechargeable Ni-Mi battery pack
14. Belt Clip
To attach the belt clip, place it over the locking pin and align the screw hole. Fix it with a screwdriver.
15. Antenna
Provides excellent reception.
C. OPERATION
1. Please charge the battery pack with the supplied charger.
2. Turn VOL control knob to the unit “on”. Turn the SQL knob counterclockwise to the end, and adjust the
volume to a normal listening level.
3. Turn SQL knob clockwise until background noise is just quieted.
4. Select the desired channel and/or QUIET privacy code.
5. Press Push-To-Talk button to transmit.
6. To receive, simply release Push-To-Talk button.
Note: You can only communicate with the other radios using the same channel and/or the same QUIET
privacy code as your radio.
!TECHNICAL SPECIFICATIONS
Frequency Range GMRS……………....……...................……………....462.6750~462.7250 MHz
Weather channel………………………………..………….……………….162.400~163.275MHz
Channels GMRS…………………...................………………..…………..…………….……….15
Weather channel…………………………...............……...............………........………………..10
Power supply...........................................…. ……...............………………....………………8.4V
Sensitivity at 12dB Sinad...........................................................…….......…...………….......0.5µV
Adjacent Channel Rejection.................................................………………..........................45dB
Audio Distortion .............................................................………….……..................................7%
RF Output Power.....................................................……………...………… 1W / 5W @ 8.4VDC
Harmonic Emissions..............................................………………......................... 55dB Hi, 48dB Lo
Dimensions (HWD).................................…..………….……………...............….135*54*33 mm
Weight (without batteries).......................................……….....………..………..… approx. 150g

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Attachment GMRS Channel Frequency
Channel Channel
Number Frequency MHz TX Power Hi/Lo
0 EMERGENCY 462.6750 5W/1W
1 Interstitial 1 462.5625 5W/1W
2 Interstitial 2 462.5875 5W/1W
3 Interstitial 3 462.6125 5W/1W
4 Interstitial 4 462.6375 5W/1W
5 Interstitial 5 462.6625 5W/1W
6 Interstitial 6 462.6875 5W/1W
7 Interstitial 7 462.7125 5W/1W
8 GMRS 1 462.5500 5W/1W
9 GMRS 2 462.5750 5W/1W
10 GMRS 3 462.6000 5W/1W
11 GMRS 4 462.6250 5W/1W
12 GMRS 5 462.6500 5W/1W
13 GMRS 6 462.7000 5W/1W
14 GMRS 7 462.7250 5W/1W
Weather Channel Frequency
Channel Frequency•MHz•
WX 1 162.400
WX 2 162.425
WX 3 162.450
WX 4 162.475
WX 5 162.500
WX 6 162.525
WX 7 162.550
WX 8 161.650
WX 9 161.775
WX 10 163.275
QUIET Privacy Codes Frequency: Hz
01=67.0 11=97.4 21=136.5 31=192.8
02=71.9 12=100.0 22=141.3 32=203.5
03=74.4 13=103.5 23=146.2 33=210.7
04=77.0 14=107.2 24=151.4 34=218.1
05=79.7 15=110.9 25=156.7 35=225.7
06=82.5 16=114.8 26=162.2 36=233.6
07=85.4 17=118.8 27=167.9 37=241.8
08=88.5 18=123.0 28=173.8 38=250.3
09=91.5 19=127.3 29=179.9
10=94.8 20=131.8 30=186.2