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Radio Shack 21-1649 Owner's Manual - Features

Manual is about: 40-Channel 5-Watt CB Walkie Talkie with LED Display

Summary of 21-1649

  • Page 1

    Owner’s manual cat. No. 21-1649 trc-236 40-channel 5-watt cb walkie talkie with led display please read before using this equipment. 21-1649.Fm page 1 thursday, august 5, 1999 11:33 am.

  • Page 2: Features

    2 features your radioshack trc-236 40-channel 5- watt cb walkie talkie with led display is a portable, two-way radio you can carry al- most anywhere. You can use your trc- 236 around the house, in your office, or in your car or boat. You can also use it on fishing trips, or at your business for supe...

  • Page 3

    3 power/charging jack — lets you power your trc-236 from an ac or dc power source, so you can use the trc-236 with- out draining the batteries. And, lets you charge nickel-cadmium batteries without removing them from the trc-236. Note: to power your trc-236 with inter- nal batteries, you need eight ...

  • Page 4

    4 fcc information the federal communications commis- sion (fcc) does not require you to have a license to operate this walkie talkie. However, the fcc does require that you read and know part 95 of fcc rules . These rules apply to the operation of a class d cb. We have provided a copy of these regul...

  • Page 5: Contents

    5 contents powering the cb ................................ 6 using the power jack and alkaline/ni-cd switch .................. 6 using batteries ................................. 7 testing the battery power .......... 10 recharging nickel-cadmium batteries ..................................... 10 u...

  • Page 6: Powering The Cb

    6 powering the cb you can power your trc-236 from any of these sources (none supplied): • eight aa alkaline batteries with the two supplied dummy batteries • te n r e ch a rg e a b le a a n ic k e l- cadmium batteries • 12-volt vehicle battery power using a fused power cord • standard ac power using...

  • Page 7

    7 • set it to alkaline before you con- nect an external power source (vehi- cle battery power or ac adapter) to the power jack or while you are us- ing internal batteries (alkaline or re- chargeable). • set it to ni - cd only when you con- nect a battery charger to the power jack to charge the insta...

  • Page 8

    8 cautions: • always use fresh, or freshly charged, batteries of the required size and recommended type. • do not mix old and new batteries, different types of batteries (stan- dard, alkaline, or rechargeable nickel-cadmium), or rechargeable batteries of different capacities. Follow these steps to i...

  • Page 9

    9 4. Be sure alkaline/ni - cd inside the battery compartment is set to alka- line . 5. Put eight aa alkaline batteries and the two supplied dummy batteries, or ten aa nickel-cadmium batteries into the battery compartment, as indi- cated by the polarity symbols (+ and –) marked inside. Note: before y...

  • Page 10

    10 testing the battery power 1. Turn on the trc-236 by rotating off/volume clockwise until it clicks. 2. Hold down batt test . If the indica- tor lights, there is enough battery power to operate the cb. If the indi- cator is dim or does not light, replace or recharge the batteries. Recharging nickel...

  • Page 11

    11 follow these steps to charge nickel- cadmium batteries in the trc-236. 1. If the trc-236 is on, turn off/volume fully counterclockwise until it clicks to turn it off. 2. Set alkaline/ni - cd inside the bat- tery compartment to ni - cd (see “us- ing the power jack and alkaline/ni- cd switch” on pa...

  • Page 12

    12 note: you can use an external charger (such as cat. No. 23-134, not sup- plied) to recharge the nickel-cadmium batteries. After removing the batteries from the trc-236, follow the instructions that come with the external charger. Important: your trc-236 is capable of using nickel-cadmium batterie...

  • Page 13

    13 • when you finish using the trc-236, unplug the fused cord from the ciga- rette-lighter socket before you dis- connect it from your trc-236. 1. If the trc-236 is on, turn off/vol- ume fully counterclockwise until it clicks to turn it off. 2. Be sure alkaline/ni - cd inside the battery compartment...

  • Page 14

    14 cautions: • the power supply must be able to deliver 12 volts and at least 1200 mil- liamps of power. The recommended power supply meets these specifica- tions. Using a power supply that does not meet these specifications could damage the trc-236 or the power supply. • you must use a dc fused cor...

  • Page 15

    15 2. Connect the dc fused cord’s 5.5 mm outer diameter/2.1 mm inner diame- ter barrel plug to the trc-236’s power jack. 3. Be sure alkaline/ni - cd inside the battery compartment is set to alka- line . 4. Plug the dc fused cord’s other end into the power supply’s power socket. 5. Plug the power sup...

  • Page 16

    16 • the antenna and antenna cable should be as far as possible from sources of electrical noise (appli- ances, other radios, and so on). • the antenna should be vertical for the best performance. Note: when connecting an optional an- tenna, always use 50-ohm coaxial cable, such as rg-58 or rg-8. Fo...

  • Page 17

    17 warning: when installing or removing a base station cb antenna, use extreme caution. If the antenna starts to fall, let it go! It could contact overhead power lines. If the antenna touches the power line, contact with the antenna, mast, cable or guy wires can cause electrocution and death! Call t...

  • Page 18: Operation

    18 operation before you use your trc-236, we recom- mend you read “cb operation tips” on page 22, which contains information to help you use it effectively and courteously. Receiving transmissions and adjusting squelch 1. If you did not connect an external antenna, fully extend the trc-236’s telesco...

  • Page 19

    19 to redisplay the channel number for several seconds, simply press and release display . 3. Repeatedly press ch s to select higher channels, or ch t to select lower channels. To move rapidly through the channels, hold down ch s or t. 4. Adjust off/volume to a comfortable listening level. 5. Adjust...

  • Page 20

    20 transmitting 1. Follow steps 1–5 in “receiving transmissions and adjusting squelch” on page 18. 2. To increase the transmitted signal strength and increase the trc-236’s range, set power hi/lo on the side of the trc-236 to hi . To decrease the transmitted signal strength and save battery power, s...

  • Page 21

    21 important: channel 9 is reserved for motorist assistance and for reporting emergency information about acci- dents, hazardous road conditions, and so on. If you are using channel 9, always give emergency messages priority. 4. To turn off the trc-236, turn off/ volume toward off until it clicks. 2...

  • Page 22: Cb Operation Tips

    22 cb operation tips the following tips will help you get the most enjoyment from your trc-236. Common uses for a cb radio business uses • truck drivers and delivery personnel can learn road and traffic conditions and get assistance in locating desti- nations. A walkie talkie is also good company on...

  • Page 23

    23 • camping, fishing, and other sports are more fun with a walkie talkie. Locate a friend or find out “what’s cooking” back at camp. Using common 10-codes citizen’s band operators have largely adopted the 10-codes for standard ques- tions and answers. Their use permits fast- er communication and be...

  • Page 24

    24 note: although this table lists the 10- codes’ meanings in the form of a state- ment, they can also be phrased as ques- tions (10-6: are you busy?, 10-20: what is your location?). 10-15 message delivered. 10-16 reply to message. 10-17 en route. 10-18 urgent. 10-19 contact __________. 10-20 my loc...

  • Page 25

    25 cb 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 push to talk when you are not talking. (this is called dead ke...

  • Page 26: Troubleshooting

    26 troubleshooting if your trc-236 is not working as it should, follow these suggestions to see if you can eliminate the problem. If you can- not, take it to your local radioshack store for assistance. Symptom suggestion weak, bad, or no recep- tion. Ensure the trc-236 is turned on. Ensure the volum...

  • Page 27: Maintenance

    27 maintenance your radioshack trc-236 40-channel 5- watt cb walkie talkie with led display is an example of superior design and crafts- manship. The following suggestions will help you care for your trc-236 so you can enjoy it for years. Keep the trc-236 dry. If it gets wet, wipe it dry immedi- ate...

  • Page 28: Specifications

    28 specifications receiver frequency coverage ... 26.965 – 27.405 mhz sensitivity (max.) ..... 0.5 µ v at 10 db (s+n)/n adjacent channel rejection ................. 45 db squelch ........... Adjustable from 1 µ v to 1 mv audio output (10% thd) ................. 400 mw current drain ....................

  • Page 29: Notes

    29 notes 21-1649.Fm page 29 thursday, august 5, 1999 11:33 am.

  • Page 30

    30 21-1649.Fm page 30 thursday, august 5, 1999 11:33 am.

  • Page 31

    31 21-1649.Fm page 31 thursday, august 5, 1999 11:33 am.

  • Page 32

    Radioshack a division of tandy corporation fort worth, texas 76102 811080820b 3a8 printed in china limited ninety-day warranty this product is warranted by radioshack against manu- facturing defects in material and workmanship under normal use for ninety (90) days from the date of pur- chase from ra...