V-Soft Communications Propagation & FCC Allocation Software Broadcast/RF

Professional Broadcast Engineering Software

V-Soft Communications Propagation & FCC Allocation Software Broadcast/RF

Zip Code Signal

Zip Code Signal

Find the field strengths of AM day, AM Night and FM stations within U.S. postal zip codes throughout the U.S.  This web program produces accurate radio station signal field strengths, organized by zip codes, from the FCC’s CDBS AM and LMS FM database, as of October 1, 2024. V-Soft Communications provides this data free of charge as a service to its customers and friends.

This program’s database now contains Canadian and Mexican stations that are heard in U.S. zip codes.  U.S. translators are also in our database. All US territories are included, such as Puerto Rico, Virgin islands, Guam and American Samoa.

WARRANTY DISCLAIMERS AND LIABILITY LIMITATIONS
DATA, AS PRESENTED, ARE DISTRIBUTED AND PROVIDED “AS IS” AND WITH NO
WARRANTIES OF ANY KIND, WHETHER EXPRESS OR IMPLIED. USE AT YOUR OWN RISK.

Enter a US zip code to find the signal strength of AM and FM stations serving the location.

Search for stations serving a Zip Code:

Zip Code:

Search for Zip Codes being served by a station:

Station Call Letters:


AM Night stations have the “-N” appended to their call signs.

Field Strength Levels:

  • 100+ dBu  Extremely strong
  • 80+ dBu   Very Strong
  • 70+ dBu  Strong Principal city coverage
  • 60+ dBu  Good coverage
  • 50+ dBu  Weaker Coverage – may have interference

* Coverage predictions use the standard FCC method, directional antenna patterns if used by the stations and for FM stations the 30 arc-second World Global terrain elevation database.  AM daytime station coverage and nighttime coverage is predicted using the M3 ground conductivities curves. 50 dBu is the cutoff for prediction for this signal strength retrieving program.  Many stations may have coverage past the 50 dBu. The majority of FM stations are protected from interference by the FCC only to their 60 dBu.  For FM stations, any coverage past the 60 dBu signal strength value would depend on whether there are other stations causing interference, which cannot be reliably predicted using the standard methods employed herein. Many AM stations operating at night are subject to interference which is not considered by this program.

(Need a Zip Code? – Click UPSP Zip Code Lookup)

Interested in Using Zip Code Signal Data in Your Project?          The V-Soft Zip Code Signal database is can be purchased for use in your custom projects.  Please contact us for more information.
For a price quote or more information on any of V-Soft Communications' software products please contact us by email or call (319) 266-8402 or (800) 743-3684.

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