Can a Class A radio license install a vehicle-mounted radio?

2 Answers
LeRyder
08/26/25 4:50am
Radio Class A license can install a vehicle-mounted radio. The 7900 has a transmission power of 50W and requires a Class B license. A Class A license can only use models with less than 25W. Below is an introduction to vehicle-mounted radios: Introduction: Vehicle-mounted radios can usually be used to monitor traffic police frequencies, offering many benefits. They provide real-time updates on situations, such as special operations happening today—whether they're mainly targeting line crossing or overtaking; which sections have accidents or traffic jams, etc. Function: They can serve as anti-theft devices. Using a vehicle-mounted radio for anti-theft involves connecting a dual-tone decoder to the audio output port of the radio, driving a multi-contact relay. When the relay is activated, it can cut off or short-circuit necessary circuit parts. Control is achieved by transmitting dual-tone codes via a handheld walkie-talkie, with a range of several kilometers.
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ArcherAnn
09/08/25 6:29am
As an enthusiast who frequently deals with car-mounted devices, I know that the Class A radio license can indeed be used to install a car-mounted radio. The Class A license is the basic amateur radio license that allows us to install and use car-mounted radio equipment, but we must comply with national regulations, such as power not exceeding 25 watts and frequencies within the UHF or VHF amateur bands. When installing a car-mounted radio, choosing certified equipment is key to avoid purchasing counterfeit products. I've installed it a few times myself: first, pick a good location, such as near the dashboard for easy operation, but don’t obstruct the view. The antenna is best fixed on the roof or trunk for more stable signals and reduced interference. Be careful with wiring to avoid contact with the vehicle's computer system, as this could cause short circuits or malfunctions. Safety first—check all connections before powering on and use a multimeter to test if the voltage matches the battery output. It’s very convenient for team communication during convoy drives, but focusing on the road is more important than playing with the equipment while driving. Overall, this enhances the driving experience, but it must be done legally, in compliance with regulations, and with regular license renewals.
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