ViaLite timing modules used to rebroadcast AM radio
When driving through tunnels, AM radio signals are blocked out by dense matter such as hills and buildings, resulting in drivers temporarily being unable to listen to a chosen radio station.
In Hong Kong, ViaLite Communications was approached to provide a solution, which was integrated into a BAI Communications system developed to reproduce the AM radio signals previously blocked. Its Blue OEM timing module, although typically used for GPS/GNSS timing applications, was chosen as a viable option. The module could be used for this application as it covers frequencies of up to 4.2 gigahertz.
The end result was a system that could repeat AM radio signals transmitting in a frequency range of between 550 kilohertz and 1.72 megahertz, allowing for uninterrupted coverage of AM radio signals.
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