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Radio Shack 21-1672, Owner'S Manual

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Radio Shack 21-1672 Owner'S Manual Download Page 19

19

OPERATION

Before you use your walkie-talkie, you should know how to use
it effectively and courteously. “Operational Hints” contains infor-
mation that will help you get more enjoyment from your walkie-
talkie.

RECEIVING TRANSMISSIONS AND 
ADJUSTING SQUELCH

1. Turn 

SQUELCH

 fully counterclockwise.

2. Turn on the power by turning 

VOLUME

 clockwise.

21-1672.fm  Page 19  Thursday, August 5, 1999  12:04 PM

Summary of Contents for 21-1672

Page 1: ...Cat No 21 1672 OWNER S MANUAL Please read before using this equipment TRC 232 4 Watt 40 Channel CB Walkie Talkie 21 1672 fm Page 1 Thursday August 5 1999 12 04 PM ...

Page 2: ...ighest degree of accurate and stable tuning Auto Scan searches for active channels Dual Watch lets you monitor one channel while listening to another Two Power Levels let you save battery power on short range transmissions Power Saver reduces power consumption by 30 when the walkie talkie is not receiving a transmission Large Illuminated Digital Display shows the channel num ber battery condition ...

Page 3: ... you operate the walkie talkie from your vehicle s cigarette lighter socket or AC power and connect the walkie talkie to an external mounted antenna Optional Power Sources let you operate the walkie talkie from alkaline batteries rechargeable nickel cadmium batteries your vehicle s cigarette lighter socket or AC power Note You can operate a walkie talkie without an FCC license For your records we ...

Page 4: ... Operation 20 Receiving Transmissions and Adjusting Squelch 20 Transmitting 22 Using Special Controls and Functions 23 Turning On Off the Light 24 Using Last Channel Recall 24 Scanning Incoming Signals 25 Alternating Between Two Channels 25 Monitoring Channel 9 26 Locking the Functions 27 Power Saver 27 Operational Hints 28 Common Uses for a CB Radio 28 Business Uses 28 Personal Uses 28 Transmissi...

Page 5: ...lications However the walkie talkie s BNC antenna connector makes it easy to connect other types of antennas Your local Radio Shack store sells a wide variety of antennas Choose the one that best meets your needs Follow these steps to connect an antenna 1 Position the BNC antenna connector over the antenna jack on the walkie talkie 2 Slip the slot in the antenna connector over the antenna jack s t...

Page 6: ...an connect the supplied DC adapter cord s antenna connector to an external antenna see Using Vehicle Battery Power on Page 13 or Us ing AC Power on Page 15 To use a base station or mobile antenna attach an appropriate connector adapter not supplied to the end of the antenna s ca ble Then insert it onto the walkie talkie s antenna connector 21 1672 fm Page 6 Thursday August 5 1999 12 04 PM ...

Page 7: ...e walkie talkie from any of four sources Alkaline batteries using the supplied alkaline battery case Rechargeable nickel cadmium batteries using the sup plied nickel cadmium battery case Your vehicle s battery using the supplied DC adapter Standard AC power using the supplied DC adapter and an optional 12 volt DC power supply Using Alkaline Batteries You can operate the walkie talkie with six AA b...

Page 8: ...ery latch up and slide the battery case off the walkie talkie 2 Using your thumb press down on one of the arrow marks on top of the battery case and pull it open 3 Remove old batteries if necessary and install six fresh AA alkaline batteries according to the polarity marks and inside the battery case 21 1672 fm Page 8 Thursday August 5 1999 12 04 PM ...

Page 9: ...llowing a battery can be fatal Be careful not to short the batteries with conducting materi als such as rings bracelets and keys The batteries or conductor might overheat and burn If BATT LOW appears on the display replace the batteries Using Rechargeable Batteries You can operate the walkie talkie with nine rechargeable nickel cadmium AA batteries Cat No 23 125 using the supplied rechargeable bat...

Page 10: ...ase and pull it open 3 Remove old batteries if necessary and install nine AA rechargeable batteries according to the polarity marks and inside the battery case 4 Press the battery case back together 5 Charge the batteries See Charging Nickel Cadmium Bat teries on Page 11 6 Slide the battery case onto the walkie talkie If BATT LOW appears on the display you need to recharge the batteries Cautions U...

Page 11: ... or disposal programs in your area Some options that might be available are municipal curbside collection drop off boxes at retailers such as your local Radio Shack store recycling collection centers and mail back programs Charging Nickel Cadmium Batteries You need a battery charger Cat No 273 1652 and the sup plied adapter plug to charge batteries in the supplied recharge able battery case Cautio...

Page 12: ...t tached to the walkie talkie but be sure to turn off the walkie talkie before you charge them Charging time is 14 to 16 hours the first time Subsequent recharging takes about 8 to 10 hours Occasionally let the nickel cadmium batteries totally dis charge by using the walkie talkie until BATT LOW appears on the display Then fully charge the batteries This condi tions the batteries so they use their...

Page 13: ...ari ety of mobile walkie talkie antennas Choose the one that best meets your needs Follow these steps to use DC power 1 If either battery case is connected to the walkie talkie push the battery latch up and slide the battery case off the walkie talkie 2 Slide the DC car adapter onto the walkie talkie Caution Before plugging the DC adapter s cigarette lighter plug into your vehicle s cigarette ligh...

Page 14: ... Adapter Fuse on Page 34 4 To connect an external mounted antenna using the DC car adapter attach the female antenna connector on the DC car adapter to a male antenna connector on the external mounted antenna cable Then disconnect the antenna connected to the antenna jack on the walkie talkie 5 When you finish using the DC car adapter disconnect it from the cigarette lighter socket Then disconnect...

Page 15: ...olt DC power supplies plug into a standard AC outlet to produce DC power Before connecting your walkie talkie to a 12 volt DC power supply read and follow the instruc tions included with the power supply Follow these steps to power the walkie talkie from AC power 1 Slide the DC car adapter onto the walkie talkie 2 Using the double sided foam tape supplied with the ciga rette lighter accessory outl...

Page 16: ...te lighter plug on the DC car adapter into the cigarette lighter accessory outlet 4 Connect the DC power supply to a standard AC outlet 5 To connect an external mounted antenna using the DC car adapter attach the female antenna connector on the DC car adapter to a male antenna connector on the external mounted antenna cable Then disconnect the antenna connected to the antenna jack on the walkie ta...

Page 17: ...plied antenna to the antenna jack on the walkie talkie USING AN EXTERNAL SPEAKER In a noisy area an external speaker positioned in the right place might provide more comfortable listening Remove the cap and plug the speaker cable s 1 8 inch 3 5 mm mini plug into the walkie talkie s SPK jack This disconnects the internal speaker 21 1672 fm Page 17 Thursday August 5 1999 12 04 PM ...

Page 18: ...to the walkie talkie s MIC and SPK jacks USING THE WRIST STRAP You can use the attached wrist strap to keep the walkie talkie accessible Simply slip the strap over your hand USING THE BELT CLIP You can use the attached belt clip to make the walkie talkie eas ier to use when you are on the go Simply slide the belt clip over your belt or waistband 21 1672 fm Page 18 Thursday August 5 1999 12 04 PM ...

Page 19: ...ourteously Operational Hints contains infor mation that will help you get more enjoyment from your walkie talkie RECEIVING TRANSMISSIONS AND ADJUSTING SQUELCH 1 Turn SQUELCH fully counterclockwise 2 Turn on the power by turning VOLUME clockwise 21 1672 fm Page 19 Thursday August 5 1999 12 04 PM ...

Page 20: ...ways give emer gency messages priority on Channel 9 4 Adjust SQUELCH to cut out background noise between transmissions To do this wait until there is no signal on the channel Then slowly turn SQUELCH clockwise until the background noise stops Note Do not turn SQUELCH too far clockwise because you might cut out weak signals too 5 Adjust VOLUME to a comfortable listening level 6 To turn off the walk...

Page 21: ...the display shows the output level Hold the walkie talkie about 2 3 inches from your mouth and speak slowly and clearly in a normal tone of voice Note A built in automatic modulation circuit adjusts the microphone s sensitivity to allow for a wide variety of voice levels 3 When you finish transmitting release PTT 21 1672 fm Page 21 Thursday August 5 1999 12 04 PM ...

Page 22: ...s H L again to set it to high output power LOW disappears from the display 5 To turn off the walkie talkie turn VOLUME counterclockwise until you hear it click USING SPECIAL CONTROLS AND FUNCTIONS Your walkie talkie has several unique controls and functions We recommend you read the following sections about the controls and functions so you can fully enjoy your walkie talkie 21 1672 fm Page 22 Thu...

Page 23: ... Press LGT to turn on and off the display s light Using Last Channel Recall Press LCR to return to the last channel that was used for longer than 3 seconds or was transmitted on 21 1672 fm Page 23 Thursday August 5 1999 12 04 PM ...

Page 24: ...where there is a transmission Press SCAN again to stop au tomatic scanning SCAN disappears from the display Alternating Between Two Channels To alternate between two channels select one channel and press DW dual watch DW appears on the display Using the UP or DWN channel buttons select another channel 21 1672 fm Page 24 Thursday August 5 1999 12 04 PM ...

Page 25: ...lkie talkie returns to the second channel even if the transmission is not complete To turn off dual watch press DW DW disappears from the dis play Monitoring Channel 9 For emergency call monitoring on channel 9 just press CH9 09 flashes on the display and the walkie talkie stays on channel 9 Press CH9 to release emergency call monitoring The previously selected channel number appears on the displa...

Page 26: ...ial power saver circuit If the walkie talkie does not receive a transmission for more than 10 seconds the circuit sets the walkie talkie to standby and PS flashes on the display During standby the walkie talkie uses only 70 of the power consumed during regular operation The walkie talkie returns to normal power when it receives a transmission when you turn SQUELCH counterclockwise until you hear n...

Page 27: ...good company on those long hauls On construction crews a CB radio quickly pays for itself when you are calling for additional materials or coordinat ing the activities of different work crews For security officers a CB radio is more than a conve nience it is a must for both safety and efficiency Personal Uses Keep in touch with home while driving to work to the store or to a social activity Let yo...

Page 28: ... sports are more fun with a CB radio Locate a buddy or find out what s cooking back at camp TRANSMISSION COURTESY Wait for a pause in someone else s transmission before you ask for a break If you do not receive an answer to your call after a second attempt sign off and wait several minutes before trying again Do not hold down the PTT button when you are not talking This is called dead keying Assis...

Page 29: ...mit range Weather conditions The number of nearby radios operating on the same chan nel Note Your CB radio s transmission range is generally line of sight To ensure maximum range always keep fresh or fully charged batteries in your CB radio USING COMMON 10 CODES Citizen s band operators and CB radio users have largely adopt ed the 10 codes for standard questions and answers These codes permit fast...

Page 30: ...tting 10 4 Message received and understood 10 5 Relay information to _____ 10 6 I am busy or are you busy 10 7 Out of service 10 8 In service 10 9 Repeat last message 10 10 Negative NO 10 11 _____ in service 10 12 Stand by 10 13 Report road weather conditions 10 14 Information 10 15 Message delivered 10 16 Reply to message 21 1672 fm Page 30 Thursday August 5 1999 12 04 PM ...

Page 31: ... Cancel last message 10 23 Arrived at the scene 10 24 Assignment complete 10 25 Meet _____ 10 26 Estimated time of arrival is _____ 10 30 Use caution 10 31 Pick up 10 33 Emergency traffic Clear the channel 10 34 What time is it 10 41 Switch to Channel xx 10 62 Cannot understand 21 1672 fm Page 31 Thursday August 5 1999 12 04 PM ...

Page 32: ...mal temperature envi ronments Temperature extremes can shorten the life of electronic devices damage batteries and distort or melt plastic parts Keep the walkie talkie away from dust and dirt which can cause premature wear of parts Wipe the walkie talkie with a damp cloth occasionally to keep it looking new Do not use harsh chemicals cleaning solvents or strong detergents to clean the walkie talki...

Page 33: ...t tings inside the unit to exceed these limitations Any adjustments to a CB radio must be made by a qualified technician using the proper test equipment To be safe and sure 1 Never open your CB radio s case 2 Never change or replace anything in your CB radio Your CB radio might cause TV or radio interference even when it is operating properly To determine whether your CB radio is causing the inter...

Page 34: ... DC car adapter has a 32V 2 amp fuse in the cigarette lighter plug When replacement is required use a slow blow glass fuse such as Cat No 270 1023 1 Turn the cap on the adapter plug counterclockwise to un screw it from the plug body 2 Remove the old fuse and inspect its condition If it is blown and requires replacement insert a new 2 amp fuse If it is not blown reinsert it 3 Replace the spring the...

Page 35: ...ut 8 ohm Intermediate Frequency 1st 10 695 MHz 2nd 455 KHz Current Drain At Standby 25 mA At Maximum 400 mA TRANSMITTER Frequency Coverage 26 965 27 405 MHz Power Input HI Position 4 watts LOW Position 1 3 watts Power Output HI Position 3 4 watts LOW Position 1 watts Modulation 80 95 Spurious Output 60 dB or better Type of Emission A3E 21 1672 fm Page 35 Thursday August 5 1999 12 04 PM ...

Page 36: ...Operating Temperature 0 140 F 18 60 C Size HWD With Nickel Cadmium Battery Case 63 8 21 2 11 2 Inches 169 63 39 mm With Alkaline Battery Case 51 4 21 2 11 2 Inches 146 63 39 mm With DC Adapter Cord 5 21 2 11 2 Inches 127 63 39 mm Weight With Nickel Cadmium Battery Case 10 7 oz 300 g With Alkaline Battery Case 10 3 oz 290 g With DC Adapter Cord 14 6 oz 410 g Specifications are typical individual un...

Page 37: ...37 NOTES 21 1672 fm Page 37 Thursday August 5 1999 12 04 PM ...

Page 38: ...38 21 1672 fm Page 38 Thursday August 5 1999 12 04 PM ...

Page 39: ...39 21 1672 fm Page 39 Thursday August 5 1999 12 04 PM ...

Page 40: ...e Warranty does not cover transportation costs Nor does it cover a product subjected to misuse or accidental dam age EXCEPT AS PROVIDED HEREIN RADIO SHACK MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN Some states do not permit limitation or exclusion of implied warranties therefore the aforesaid lim...

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