Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS object NV4FM B - show graphs
Map loading...
Source callsign: NV4FM-S
Comment: 440 Voice 448.035 -5 MHz
Location: 38°54.32' N 77°12.96' W - locator FM18JV47BG - show map - static map
5.7 miles Southwest bearing 244° from Brookmont, Montgomery County, Maryland, United States [?]
5.8 miles Southwest bearing 213° from Cabin John, Montgomery County, Maryland, United States
9.7 miles West bearing 274° from Washington, D. C., Washington, D.C., United States
41.9 miles Southwest bearing 231° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2018-04-24 02:50:29 EDT (12m15s ago)
2018-04-24 02:50:29 EDT local time at Brookmont, United States [?]
Last path: NV4FM-S>APJIO4 via TCPIP*,qAC,NV4FM-GS
Positions stored: 2
Others sourced by NV4FM-S: NV4FM A NV4FM AD NV4FM C
Stations near current position of NV4FM B - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
NV4FM A0.0 yards 0°2018-04-24 02:50:25 NV4FM AD0.0 yards 0°2018-04-24 02:50:24
NV4FM C0.0 yards 0°2018-04-24 02:50:31 NV4FM-A0.0 yards 0°2018-04-24 02:50:13
NV4FM-C0.0 yards 0°2018-04-24 02:50:16 NV4FM-B0.0 yards 0°2018-04-24 02:50:07
NV4FM-5145.6 yards 12°2018-04-24 03:01:11 KN4EAR0.9 miles 113°2018-04-24 02:37:24
KN4FTT-101.5 miles 333°2018-03-26 14:23:36 KG4LAA-151.5 miles 105°2018-04-23 19:22:18
W3VPS-71.6 miles 78°2018-04-23 00:54:05 KB3UHX1.6 miles 102°2018-04-23 08:08:34
N9FV1.7 miles 106°2018-04-24 03:00:18 KI4AZX-71.8 miles 209°2018-04-04 14:59:31
KT4NR-91.8 miles 31°2018-04-16 07:40:58 EW67152.1 miles 139°2018-04-24 03:01:15
KE4IHG-22.3 miles 323°2018-04-16 15:08:34 KK4NDE-12.4 miles 317°2018-04-22 12:14:15
KK4NDE-72.4 miles 317°2018-04-20 23:03:21 DW20312.5 miles 158°2018-04-24 02:57:45
About this site
This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.
FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS