WA8LMF Mirror of WB4APR Website - 21 July 2008 AMATEUR RADIO


Bob Bruninga, WB4APR, Annapolis, MD

This display shows the current stations active on the 144.39 MHz National APRS frequency in the Washington/Baltimore area. Although the range of VHF communications is typically only a few miles up to 15 or so, the presence of the APRS digipeaters (shown here as green Stars) provide over 250 miles of coverage. This data is refreshed every 2 minutes. See one of our special event GPS trackers, typically duct-taped to the roof of a tracked vehicle.

javAPRS Commands (Case Insensitive)
U or D
zooms up/down (you may also use PGup/dn)
L, S, or M
List stations, Show Status or Messages to Java console
CTRL or ALT-click
Centers or Zooms map on clicked location
Arrow keys
scrolls map

Return to the APRS HOMEPAGE

The Naval Academy is a registered user of APRS and WinAPRS. The purpose of this web page is to show several applications currently in use at this site and should not be considered as an advertisement or an endorsement of any commercial product.

WA8LMF Mirror of WB4APR Website - 21 July 2008