Welcome to the home of the Capitol Hill Monitors


The Capitol Hill Monitors is a club for scanner radio enthusiasts in Washington, D.C., Maryland, northern Virginia and lower Delaware. CHM sponsors tours and meetings throughout the year. The club's newsletter supplements other hobbyist publications such as Monitoring Times.

The CHM Newsletter

The Capitol Hill Monitor is the non-profit newsletter of the Capitol Hill Monitors. The newsletter keeps scanner enthusiasts abreast of local meetings, tours, frequency profiles and other topics of interest.

The online newsletter is free. To receive e-mail notification when a new issue is posted, enter your e-mail address below:

Please enter your e-mail address below, then click the "Subscribe" button to join our mailing list

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This is a private list (your e-mail is safe from spam). The dues only cover mailing costs for people who wish to receive the newsletter by mail.  Ten mailed issues are $10. Kindly make checks payable to Alan Henney.

Please see the link below to join the Scan-DC e-mail discussion list for the Washington, D.C. area.


Sample Issue: Scanning the 57th Presidential Inauguration(PDF)

The archive of past CHM newsletters can be found here

The articles linked here are courtesy of the RadioReference Wiki. This is a user edited and maintained area on the popular RadioReference website. The articles shown here are just a small sample of what is available. To view the site, simply click on the 'wiki' link. RadioReference members may edit nearly any of these articles by using their RadioReference userid and password to sign on (registration is free).

Are you just getting started in the hobby? Then start by reading the Scanning 101 article

Are you looking to buy a scanner from a local dealer (besides Radio Shack)? Then check out our List of local retailers

Regions Covered on this page

Delaware District of Columbia Maryland Virginia

Scanner Topics

Scanners Applications Equipment Topics
Analog Trunkers Software Antennas Connecting Scanners via USB
Digital Trunkers Programming FAQs Accessories Connecting Scanners to Soundcards
Handheld Receivers RR Web Service Filters Delmarva Milcom
Desktop Receivers Aeronautical Manuals Glossary
PC Driven Federal Powering the Scanner Modifications
  Marine Channels   Narrowbanding
  Railroad   Rebanding
  SATCOM   Reviews
      Trunking (PDF)
      Trunking Decoders
      VHF/UHF Skip


Maps and associated data for GPS-aided scanners (courtesy Dewey Watkins)

Maryland Eastern Shore (Caroline, Cecil, Dorchester, Kent, Queen Anne's, Somerset, Talbot, Wicomico and Worcester)

Northern Maryland (Baltimore City/Co, Carroll, Frederick, Harford and Washington)

D.C. and Southern Maryland (Calvert, Charles, St. Mary's, and Prince George's)

Central Maryland (Anne Arundel, Howard and Montgomery)


Scan-DC Listserv

Scan-DC is an electronic-mailing list dedicated to discussion of scanner radio-related topics in the Washington-Baltimore area. List members send messages to the MailMan software which distributes the messages to all list members. Members can receive the messages individually, or in a periodic digest which collects multiple messages and distributes them as a single message.

Feel free to write, fax or e-mail for more information. We welcome frequency and visitor requests, but please include a reply envelope.


Newsletter Staff and E-Mail Addresses

Alan Henney, General Editor and Acting Treasurer ()
Dr. Willard Hardman, Executive Editor
Mike Peyton, Technical Advisor
Ken Fowler, Virginia Correspondent (kd4iiw "at" juno dot com)

For more details contact:

Alan Henney
6912 Prince George's Avenue
Takoma Park, MD 20912-5414
301-270-2531 voice * 301-270-5774 fax