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Broadcast Auxiliary


Common Filing Tasks

Modify Your System

There are two ways of filing an application to modify your license; electronically or manually. The rules require certain services to file electronically (See 1.913(b) of the Commission’s Rules).
Some modifications require frequency coordination. Interference Protection Criteria and Frequency Coordination requirements for Part 101 licensees and Part 74 Licensees in bands above 944 MHz (except 2025 – 2110 MHz) are contained in Section 101.105 and 101.103(d) of the Commission’s Rules. Coordination requirements for the 2025 – 2110 MHz band are contained in Section 74.638(c) of the Commission’s Rules.
Evidence that Frequency Coordination has been completed is required for... Evidence of Frequency Coordination is not required for...
All major modifications and amendments, including, but not necessarily limited to the following:
  • Changes to Transmit Antenna Location
  • Increases to frequency tolerance
  • Increases in Bandwidth
  • Changes in emission type
  • Increases in EIRP
  • Increases to Antenna height
  • Increases to Antenna Beamwidth
  • Changes to Polarization
  • Changes to Antenna Azimuth
See Section 1.929(a) & (d) for more details and a complete listing of modifications that are classified as major.
  • Minor modifications
Note that although minor modifications do not require evidence of frequency coordination to be filed with the application, some minor modifications may still require that frequency coordination be performed. (See Paragraph 16 of the ULS Memorandum Opinion and Order on Reconsideration) (text)
  • Administrative updates, such as changing your address or contact information
  • Filing receive-only sites in the TV Pickup Radio Service (TP) (See page)
Note: The address and contact information you have entered in CORES registration will not be automatically associated with your licenses. To change the address or other contact information on your license, you must update your information in ULS or submit Form 601 manually.

Using the Universal Licensing System

When entering information into the online system, licensees will find that certain fields and questions collected on the FCC Form 601 must be completed or ULS edits will not allow the licensee to continue to the next screen. ULS will display a message if a required field is left blank and licensees will be given the opportunity to go back to the screen and complete the required fields.
To modify your license, access the ULS homepage, select Online Filing, and follow the instructions below.
  1. Log in to the “License Manager” page with your FCC Registration Number (FRN) and password. If you do not have an FRN, you must obtain one first by going to the FCC Registration site.
  2. If you have saved applications, the system will open to a page titled “My Applications.” From this page choose the My Licenses link in the side navigation menu at the left side of the screen.
  3. On the “My Licenses” page, select the Update Licenses link from the navigation menu at the left side of the screen. Note: For additional help with this process, click on the Common Questions links that appear on most pages of ULS License Manager, or click the Help link at the top right of each page. Alternatively you may select an individual call sign from the list of your licenses and, once the “license at a glance” page has loaded for that call sign, select update license from the “Work on this License” menu at the right side of the screen.
  4. On the “Update Licenses & Select Updates” page, you may indicate whether you wish to update the Licensee Information, Contact Information, Alien Ownership/Qualifications/Demographics, Controls Points or Technical Data by selecting the box(es) next to the information you wish to update. Click Continue when ready.
  5. If you indicated that you wanted to update Radio Service, Alien Ownership/Qualifications/Demographics, or Technical Data, you will be required to complete the FCC Form 601. If you indicated that you also wanted to update Licensee Information, Contact Information, or Control Point Information in addition to Radio Service, Alien Ownership, Qualifications & Demographics information, or Technical Data you must provide that information on the Form 601. For additional help completing the 601 you may click on the “?” button. Once you have completed the Form 601 skip to step 11.
  6. If you indicated that you wanted to update only Licensee Information, Contact Information, or Control Point Information you will next be presented with an “Applicant Questions” page. Once you answer the questions on the “Applicant Questions” page and click Continue you will be presented with additional pages where you can review and update licensee information, contact information, or control point information. Make any corrections that are necessary and click Continue when ready.
  7. On the “Summary” page review the information you have entered. If you wish to make additional changes, click the Edit button next to the section of your application you wish to edit. You will be able to return to that page of the application. Make the desire change and select the Return to Summary button. When ready to submit your update to the Commission, choose the Continue to Certify button when ready.
  8. After reading the certification, enter your first and last names and title if appropriate in the boxes at the bottom of the page. You MUST sign the application. When finished choose the Submit Application button.
  9. From the Confirmation page, we recommend you print a copy of your application and/or the Confirmation screen itself from your web browser.
  10. If the application requires a fee, click the Form 159 button. Log in to Form 159 with the FRN and password of the party paying for the application.
  11. Finally, click the Pay Online by Credit Card link or if you do not wish to pay online, click the View Form 159 button to print out a completed Form and mail it with the appropriate payment. The appropriate filing address will be identified on the confirmation page in ULS or can be determined by consulting the Wireless Fee Filing Guide.
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Manually Filing Using Paper Form 601

See Forms & Fees for information on how to download forms, or request forms by phone, fax on demand, or in writing. For information on applicable fees, see the Wireless Filing Guide.
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