Radio Shack TRC-499 - User Manual

Questions and Answers

A
andrewdavisAug 8, 2025
What to do if my Radio Shack Two-Way Radio CB does not work at all?
- J
  Jason PorterAug 8, 2025
  Check the power supply (either vehicle or 12V DC) and the in-line fuse. Ensure they are working correctly. Replace the fuse only with an identical 2-amp fuse.
P
Philip MontgomeryAug 16, 2025
How to fix trouble with transmission on Radio Shack TRC-499?
- C
  Chad GreeneAug 16, 2025
  If you are experiencing issues with transmission, verify the following: * The CB is turned on. * The microphone is securely connected to the CB. * All connectors are clean and tightened. * The antenna cable is securely connected to both the antenna and the CB. * You are fully pressing the microphone talk button.
H
Heather ScottAug 23, 2025
How to improve reception on Radio Shack Two-Way Radio?
- S
  Stephanie JamesAug 25, 2025
  To address reception problems, ensure that: * The CB is turned on. * VOLUME is turned up. * SQUELCH is adjusted properly. * The microphone is securely connected to the CB. * The antenna cable is securely connected to both the antenna and the CB.
K
Kimberly EvansOct 31, 2025
Why is there noise from my vehicle while using Radio Shack TRC-499 Two-Way Radio?
- L
  Lori ReynoldsOct 31, 2025
  Electrical noise from the vehicle's ignition or electrical system can cause noise. If you operate the TRC-499 with the vehicle’s engine off, you should not have any problems with noise. If you use the CB with the engine on, you can determine the noise source by turning off the engine and operating the CB with the ignition set to ACC. If the noise diminishes, the issue lies within your vehicle’s ignition or electrical system. You can also check your alternator/generator, regulator, and gauges. Noise from these sources can be reduced or eliminated using bypass capacitors at various output voltage points. Additionally, ensure the ground connection (black wire) is secure. Consider replacing old ignition wires with new, high-voltage, noise-suppression wires or installing noise suppressors on yo...