**Signals Intelligence [SIGINT]**
===========================================================================

## **<u>Radio Frequencies</u>**

- [Signal Identification Wiki](https://www.sigidwiki.com/wiki/Signal_Identification_Guide)  
  Identify radio signals through example sounds and waterfall images. Most signals are received and recorded using a software defined radio.
- [RadioGarden](http://radio.garden/)  
  Tune into thousands of live radio stations from across the world.
- [Live Online Radio](https://liveonlineradio.net/)  
  A large directory of radio stations from around the world that lets you listen in. Organized by geographical region.
- [RadioNet](https://www.radio.net/local-stations)  
  View and listen to radio stations near your location or search for radio stations via keyword.
- [Broadcastify](https://www.broadcastify.com/listen/)  
  Listen to live to police, fire, EMS, aviation, and rail audio feeds from the USA.
- [Radiooooo](https://radiooooo.com/)  
  A collaborative collection of radio stations from all over the world.
- [OpenMHz](https://openmhz.com/)  
  Listen to live police and fire radio from all across the U.S.
- [RadioReference](https://www.radioreference.com/)  
  The largest radio communications data provider. Has a complete frequency database, trunked radio system information and FCC license data. Requires registration.
- [American Archive of Public Broadcasting](https://americanarchive.org/)  
  Discover, listen and watch historic radio and television broadcasts from across the USA.
- [GlobalTuners](https://www.globaltuners.com/)  
  Provides access to remotely controlled radio receivers all over the world. You can tune the receivers to listen to remote radio broadcasts, air traffic, amateur transmissions and much more.
- [Wide-Band WebSDR](http://websdr.ewi.utwente.nl:8901/)  
  On this page you can listen to and control a short-wave receiver located at the amateur radio club at the University of Twente. This receiver can be tuned by multiple users simultaneously.
- [Digital Frequency Search](https://digitalfrequencysearch.com/index.php)  
  Helps find, scan, and identify digital radio frequencies in a specific area. All searches are by county and state. Data is provided from the FCC.
- [DXing](https://www.dxing.com/scanfreq.htm)  
  A database of national radio frequencies.
- [American Disaster Shortwave Frequencies](http://www.nat-com.org/swfreq.htm)  
  A list of emergency radio frequencies used by various US agencies.
- [Bearcat Family Radio Frequencies](http://www.bearcat1.com/family.htm)  
  A list of radio frequencies used by [NatCom](http://www.nat-com.org/).
- [Bearcat Fast Food Frequencies](http://www.bearcat1.com/fastfood.htm)  
  A list of frequencies used by fast food chains in the US.
- [Bearcat Military Frequencies](http://www.bearcat1.com/feds.htm)  
  A list of US military trunked radio frequencies.
- [Bearcat Sports Frequencies](http://www.bearcat1.com/sports.htm)  
  A list of radio frequencies related to sports.
- [Bearcat Online](http://www.bearcat1.com/subscription.htm)  
  A tool that allows you to search various frequency databases. Requires a paid subscription.
- [Default Frequencies for Motorola Business Radios](https://www.buytwowayradios.com/blog/2015/05/default_frequencies_for_motorola_business_radios.html)  
  A list of Motorola business radios with their channel numbers and the default frequencies assigned to them out of the box.

## <u>**HAM Radio**</u>

- [QRZ Callsign Database](https://www.qrz.com/lookup/)  
  Search for licensed HAM radio operators by callsign, real name, address, country and more.
- [FCC License Search](https://wireless2.fcc.gov/UlsApp/UlsSearch/searchLicense.jsp)  
  Allows you to search for amateur radio operators by callsign, name or FRN. Search results can provide a persons full name, callsign, addresses and in some cases, felony records.
- [Canadian Amateur Radio Operator Search](https://apc-cap.ic.gc.ca/pls/apc_anon/query_amat_cs$.startup)  
  A database where you can search Canadians who are licensed amateur radio operators. Search by callsign, last name, city, province or postal code.

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