20 Most Recent Radio Shack TRC-521 CB Radio Questions & Answers

not sure what type pinout you have but if its a din plug any realistic mic should work.

you should do a google search for it

try some electrical component spray on the inside of the mic.Just a dash of it should do. not making good contact.

walmart should have them.

cb tricks has the service manual.

go to www.cbtricks.com they have the manual you are looking for.

Hi, my name is John. You can get it at Radio Shack. Thanks for choosing Fixya......John

Radio Shack or your nearest Truck Stop

Is the tone high pitch? if so he was too close to you (feedback).

If the tone was low then could be a voltage problem, or a microphone fault.

more like to be an incorrectly wired microphone if the radio is new?

Sounds like your mike is messed up......unplug it and try another,what kind of mike do you have on it? Probly not wired up right.. .hope this helps..........

Hello, First of all you only have the Power wire Red, and the ground wire Black to connect for 12v DC to power the unit. If you memory power it is usually connected to a constant power source such as the cigarette lighter or continuous 12V dc powersupply off of the battery. These are the only connections that should be connected to provide power. Since the unit will not turn on I suspect that the CB's power supply and regulator have been blown. Another possible choice is that the radio was working and someone removed the antenna cable and the the RF power amplifier malfunctioned taking the power supply and regulator with it. To solve this problem, check the voltages on the wires before connecting them to the radio (these should be the 12 volt power off of the radio circuit, and the 12 volt power off of the continuous 12V connector (or the cigarette lighter). These voltages should read 12V. Connect the CB with it turned off and measure the voltages (should be 12V) Turn the radio on and check the voltages (should be a little less than 12V) If the radio does not come on then the internal power supply of the radio might be defective (In this case I would advise taking the CB to a qualified radio repair shop) I hope this helps Thank you, Shuttle83 http://www.electron-age-technologies-llc.com

usually 2.5 Dan

could you tell us something about "the set"? more details please.

Hello, Try: http://www.cbradiomagazine.com/Radio%20Reviews/Realistic%20TRC-521/2101711_PM_EN.pdf I hope this helps Shuttle83 http://www.electron-age-technologies-llc.com

The antenna is the weakest link in the system, I would start there. Do you have access to another antenna that you know works ?

try 1 blue/SHIELD 3 RED 4 WHITE 5 BLACK YELLOW N/C I dont know if this will help you or not but try it thats all i have for a radio shack radio

definitely need more information:

1. Have you checked your coax to make sure it is good (with a meter)? Make sure center pin to center pin has good continuity, and making sure that the center pin to shield is not shorted.

2. Have you made sure your antenna is set up properly, not grounding out to the bracket. Make sure the plastic ferrel is between the antenna and the bracket so it does not ground out.

3. Do you have a good ground plane? Is the antenna bracked making a good groudning connection to the vehicle?

4. Do you have a friend with cb set up in his/her vehicle, so you can test between the two?

Unfortunatly a owner's manual is no longer available for that, but here are some general CB hint's and tips. Hope this helps. TRC-424 4-Watt Solid-State Transceiver (210-1522) Hints and Tips Faxback Doc. # 48947 NOISE Your vehicle or boat can be the cause of much noise interference. Since the receiver section of your transceiver is very sensitive, it can pick up even the smallest noise signal and amplify them. Any noise that you hear in the transceiver is almost totally from external sources. The receiver itself is exceptionally quiet. Steady high noise levels can not be totally eliminated by the internal Automatic Noise Limiter circuit (BLANKER). Noise problems can not be solved internally (in the transceiver); they must be solved at the source of the noise. If you wonder if the noise is from your ignition system, the transceiver or an external source, try this simple test. Turn your ignition switch off and set it to ACC (accessories). This turns off the ignition, but supplies power to the transceiver. Most of the noise will disappear - indicating that the source of the noise is your ignition system. This interfering noise can be generated anywhere in the electrical system of the vehicle or boat. The first step in reducing or eliminating this noise is to locate the source of the noise. IGNITION SYSTEM The most common source of noise is the ignition system. This noise can be identified by the fact that it varies with the speed of the engine. It consists of a series of popping sounds occurring at a regular rate that will vary with the speed of the engine and stop when the ignition is turned off. There are a number of things that can be done to reduce this type of noise: 1. Use only the 'radio suppression type' high voltage ignition wire. Most new cars come already equipped with this type of wire. 2. Inspect the high voltage ignition wire and all connections made with this wire. Old ignition wire may develop leakage, resulting in hash. 3. If the noise still persists, replace the spark plugs with spark plugs that have suppressor resistors builtin. Be sure to use the correct type for your vehicle. Other sources of noise are: generator/alternator, regulator, gauges and static discharge. Most of these types of noise can be effectively reduced or eliminated by using bypass capacitors at the various output voltage points. We suggest that you check your RadioShack store for a wide selection of noise reduction accessories. SERVICE AND MAINTENANCE Your transceiver has been built in accordance with RadioShack's exacting quality control standards. However, it should be treated with reasonable care accorded any electronic equipment. Avoid exposing it to severe shock, dirt or moisture. If you run into problems with the unit, we recommend you check the following: 1. If trouble is experienced with receiving. Check VOLUME On/Off switch setting. Be sure SQUELCH is adjusted properly. Is it over-squelched? Check if the unit is switched to an operating channel. 2. If trouble is experienced with transmitting. Be sure the Microphone is firmly connected to the Microphone jack on the unit. Check if the transmission line is securely connected to ANTenna Coax Connector. Check if the antenna is fully extended for proper operation. Are all transmission line connections secure and free of corrosion? Make sure you are fully depressing the push-to-talk button on Microphone. Check PA push-button setting. It must be in 'out' position. 3. If the transceiver is completely inoperative. Check the power cable and fuse (2A). If these checks don't solve the trouble, do NOT attempt repair or adjustments yourself. The unit should be services only by a qualified radio technician. Whenever possible, return the unit to the store from which it was purchased. 10-CODES Citizen band radio operators have largely adopted the 10-code for standard questions and answers. Its use permits faster communications and better intelligibility in noisy areas. The following table lists some of the more common codes and their meanings. 10-1 Receiving Poorly 10-10 Standing By 10-2 Receiving Well 10-13 Advise Road/Weather Conditions 10-3 Stop Transmitting 10-20 What is your location? 10-4 OK 10-33 Emergency Traffic 10-7 Out of Service 10-36 Correct Time 10-8 In Service 10-41 Switch to Channel 10-9 Repeat 10-99 Cannot Copy You WARNING DO NOT OPEN UP THE TRANSCEIVER TO MAKE ANY INTERNAL ADJUSTMENTS. Any internal adjustments can be made only by (or under the direct supervision of) a person holding an FCC 1st or 2nd Class Radio Operator's License. Internal adjustments and/or modifications can lead to illegal operation as defined by FCC Rules and Regulations, Part 95. Such illegal operation can lead to very serious consequences. To Be Safe And Sure: 1. You should never open up the case of your Transceiver. 2. Never change or replace anything in your Transceiver. (wr 08/04/98) Privacy Policy

go to your local radio shack dealer and thell tell you what to get

Need to reprogram my scanner. Do I need to get police code number to put in it