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Transmitter Hunting -- Radio Direction Finding Simplified

AC Power Interference Handbook -- New insights into the causes, effects, locating and correction of power-line and electrical interference. 3rd Edition.

The RSGB Guide to EMC -- Tackle RF interference problems and understand the underlying causes.

Electromagnetic Compatibility Engineering -- Now Shipping! -- The most comprehensive book on electromagnetic compatibility, including all the latest advances and developments in the field.

The ARRL RFI Book -- Second Edition. Practical Cures for Radio Frequency Interference.

ULS Registration 101

FCC Info · Universal Licensing System Q&A · License Filing Instructions · Regulatory Information Branch

ULS Step-By-Step

In the early days of ULS (Universal Licensing System), deployed in the Amateur Service on August 16, 1999, the FCC registration and filing systems were not easy to navigate. Now, however, the FCC has taken great strides to make ULS and CORES (COmmission REgistration System) easier to use. The FCC has done a very good job of updating their Web page and there is a specific section for the Amateur Radio Service which can be found at http://wireless.fcc.gov/services/index.htm?job=licensing&id=amateur .   The FCC has even devoted a page to common filing tasks http://wireless.fcc.gov/services/index.htm?job=cft&id=amateur&page=cft_summary which offers instruction on filing electronically via the ULS.

If you wish to conduct business with the FCC, you must first register through FCC CORES. Upon registration, you will be assigned a Federal Registration Number (FRN). This number will be used to uniquely identify you in all transactions with the FCC. Effective December 3, 2001, the use of a Federal Registration Number (FRN) became mandatory. You must be registered in CORES and be issued an FRN before you can use ULS to renew your license, change your address, obtain a duplicate license or use any of the other services that the FCC offers.  Not sure if you have an FRN?  Check your license to determine if it’s been assigned an FRN.

Here's a ULS/CORES primer for those registering on-line. In response to requests from the amateur community for simplified, yet detailed, steps to register for ULS and CORES, the ARRL offers the following procedure for individual Amateur Radio licensees:

That's it! You're done! You are now registered in CORES and can transact business (ie, file applications, renewals, vanity call sign requests, address changes, etc.) with the FCC using the Universal Licensing System.—Maria Somma, AB1FM  

Password problems?

Forgot your password? If you have previously provided FCC with a Personal Security Question and answer, then on the FCC web site you may use the online password reset feature to create a new password for your FRN.

If you have forgotten your password and have not previously provided a Personal Security Question and answer, on the FCC web site you can request a password reset at https://esupport.fcc.gov/password.htm .

Need an FRN?  Register with the FCC

Not sure if you have an FRN?  Check your licenses to determine if they've been assigned an FRN

If you need immediate assistance, call FCC Technical Support / FRN Help line (select Option #1 from the menu), where support for password hints and reset requests is provided.

FRN Help Line: 877-480-3201 (Mon.-Fri. 8 a.m.-6 p.m. ET)

The FCC FRN Help desk has a dedicated staff of customer service representatives
standing by to answer your questions or concerns.

You can also email the FRN Help desk at CORES@fcc.gov with your questions and concerns.

You must be registered in CORES before you can file in the FCC ULS system.

Additional Information

License Filing Instructions and Filing Fees  complete list of filing options with step by step instructions.

Amateur Application Filing FAQ  complete list of forms and their uses.

Amateur Radio Vanity Call Sign FAQ  all you need to know about Vanity call signs.

FCC ULS Frequently Asked Questions  all you need to know about on-line filing with the FCC.



Page last modified: 11:24 AM, 12 Jun 2008 ET
Page author: rib@arrl.org
Copyright © 2008, American Radio Relay League, Inc. All Rights Reserved.