Terrestrial RF Licensing, Inc. has made the difficult decision to discontinue operations at this time.
Any requests submitted prior to June 7, 2018 will be carried through to completion.
Terrestrial RF Licensing will not be accepting any further service requests beginning June 8, 2018.

We sincerely apologize for any inconvenience this may cause.

"PCN" is short for Prior Coordination Notice.

Because the Broadcast Auxiliary Services (BAS) band (the frequency band used for STL's, RPU's, TRL's, etc) is subject to frequent changes, and because there are so many BAS licenses in use, the FCC does not coordinate the allotment of frequencies for the BAS band as closely as it does for some of the other broadcast bands. It is left up to the broadcasters themselves to coordinate any changes to their local BAS setup. To ensure that this coordination does take place and is fair to everyone, the FCC has established a set of rules to help determine who is to be notified, and how.

The process of notifying fellow broadcasters of a proposed change to the BAS setup is called "prior coordination". The letter/email used to communicate the proposal is the "prior coordination notice", or PCN.
Our custom-designed software generates a list of all licensed BAS systems within the proposed link's keyhole. We then filter this list so it only contains licenses for links operating within ±1 MHz of the proposed link. This becomes the final list from which each licensee will receive one PCN letter. As a courtesy, we also send a PCN letter to each of the major frequency coordination services around the country.
This is a result of the keyhole used in determining who is "near" our proposed link.
The auxiliary systems that transmit the on-air audio/video from your studios to your actual transmitter (not to mention any on-location vans, news helicopters, etc) use a different frequency than the one you're used to associating with your station. It is these systems that we are trying to protect and their frequencies are the ones we are attempting to coordinate.
Yes. All PCN's submitted through this site generate a number with a new 11-digit scheme. The status of these requests can be viewed by logging in and viewing the status on your dashboard.
To view the status of an older 21-digit request, simply go to rflicensing.com/request-status and type in the desired PCN # to see its status in our system
The so-called "keyhole" pattern is the frequency coordination area used for determining potential PCN recipients. This area is defined in Section 3.4.4 ("Interference Criteria for Microwave Systems") of the TIA/EIA Telecommunications Service Bulletin 10-F. For the frequencies used in the BAS band, the coordination area is made up of a 125-mile circle centered around the transmit location. This circle is extended to 248 miles along the direction of the transmit-to-receive path ±5°. If you'd like a visual, please see our sample map.

Please note that, as shown in the sample map, a microwave shot originating in the city of Manassas, VA and directed towards, say, the Northeast will result in a frequency coordination area that includes Charlottesville, VA (which is almost 180° in the opposite direction!); Richmond, VA; Harrisonburg, VA; Washington, DC; almost all of Maryland and Delaware; a significant portion of both Pennsylvania and New Jersey; and even New York City, NY. In short, it's large.
Yes. All applications for new BAS licenses are subject to the prior coordination requirement.
Yes. If the old license has expired, it is no longer valid and any application to license said system will be treated no different from a license for a new system.
That depends on what changes you will be making. Certain changes are considered to be "minor" and do not require prior coordination before an application can be filed. Other changes, however, are considered "major" and are subject to the prior coordination requirement. For details on which changes are classified as major or minor, please refer to §1.929 of the FCC rules.


We accept Visa, MasterCard, American Express, and purchase orders (Net-30, unless you request otherwise).

Unless you request otherwise, we will not charge your credit card until the service request has been fulfilled and any applicable PCN's/studies/applications have been completed.
Unless you request otherwise, the invoice will be mailed once your service request has been fulfilled and any applicable PCN's/studies/applications have been completed. Our payment terms are Net-30.
We're sorry you're no longer interested in our services, but we will certainly honor any requests for cancellations, so long as work on your request hasn't already begun. Just contact us and we'll be happy to discuss the details.
We apologize for the inconvenience, but all our data comes from the FCC's own databases and if you've received a PCN letter from us then the FCC must have you listed as a licensee. If you no longer own the microwave shot for which you've received a PCN, you should contact the FCC and arrange for cancellation or transfer of the old license.
We understand your concern, but, according to FCC rule §101.103(d) (more specifically, §101.103(d)(2)(iv)), "Any response to notification indicating potential interference must specify the technical details and must be provided to the applicant, in writing ..."

While we try to address any and all objections, we cannot accept an objection if there is no technical basis for your complaint. Whenever you have reason to believe a proposed system might cause interference to your operation, we suggest you consult your station engineer (or a contract engineer, if no station engineer is available) to discuss the proposal.