At one time, you could become a 'subscriber' by contributing sufficient information, or a small donation, with no stated time limit. That situation is no longer in effect. The terms of subscription change, over time, as decided by the site owners. Just like credit cards, the offered terms change, and you get the choice of continuing under the new terms, or ceasing use of the service. Currently:
General Information
RadioReference.com provides premium services to members through a subscription model. There are a number of value added features available including data downloads, personalization, and printable PDF formats that are valuable services to radio communications enthusiasts.
Please note that general access to the RadioReference.com Database, the Forums, and the Wiki, will always remain free. This policy will never, ever change.
Premium Subscription Features
In addition to the below special reporting features and search functions for the database, Premium Subscribers also have access to the RadioReference.com Web Service, which allows numerous programming applications to access the database directly, providing an easy to use process for programming scanners and communications equipment with data directly from the RadioReference Database. See the Web Service Application Support section for a list of applications that directly support this valuable Web Service.
Time Period Cost
180 days $15.00
360 days $30.00