Airband
Airband Receiving is a classic among ham radio activities and can be enjoyed by everyone from beginners to advanced operators. For me as an old-timer, the revival of ham radio started with this:Airband, and I also developed Trinity with this Airband receiving in mind.
Link
Airband Since receiving data is considered the standard approach, pioneers in the field have made useful information available to the public. Here, we’ll introduce some of the most representative resources.
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Aviation Radio Handbook
The page is easy to read and provides a comprehensive list of frequencies and related information. It really feels like the perfect place to start. -
Aviation informatio site
It covers a wide range of aviation information and also provides comprehensive frequency information. -
AirNav.com
Overseas Websites — Covering a Wide Range of Frequency Information