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APRS station W4SDM-9 - show graphs
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Comment: 147.300MHz Mobile - Beige FJ
Mic-E message: Custom 0
Location: 38°56.98' N 77°21.41' W - locator FM18HW77EW - show map - static map
1.6 miles Southwest bearing 213° from Reston, Fairfax County, Virginia, United States [?]
3.9 miles West bearing 280° from Wolf Trap, Fairfax County, Virginia, United States
17.6 miles West bearing 282° from Washington, D. C., Washington, D.C., United States
46.3 miles Southwest bearing 240° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2017-06-23 08:35:20 EDT (2d 9h56m ago)
2017-06-23 08:35:20 EDT local time at Reston, United States [?]
Course: 12°
Speed: 35 MPH
Last telemetry: 2014-12-16 08:45:09 EST (922d 8h47m ago) – show telemetry
Ch 1: 468, Ch 2: 567, Ch 3: 0, Ch 4: 0, Ch 5: 0
 1     2     3     4     5     6     7     8 
Device: Kenwood: TH-D72 (ht)
Last path: W4SDM-9>DIFV9X via N1RM-1*,KV3B-1*,WIDE2*,qAR,K5DAT-10 (good)
Positions stored: 15801
Packet rate: 83 seconds between packets on average during 833 seconds.
Other SSIDs: W4SDM-1 W4SDM-6
Stations near current position of W4SDM-9 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
443.00RES0.6 miles 1°2017-06-24 07:55:54 N1RM-10.7 miles 326°2017-06-24 03:25:55
N1RM-60.7 miles 326°2017-06-02 23:54:58 KM4DC0.8 miles 13°2017-06-11 11:19:36
N1RM-71.0 miles 324°2017-06-25 15:12:31 KM4HRR-71.9 miles 116°2017-06-07 00:36:40
DW57762.0 miles 89°2017-06-25 18:31:08 N2LEE-102.0 miles 331°2017-06-25 18:10:45
NG2E-122.2 miles 228°2017-06-24 20:24:21 KE4IHG-32.2 miles 95°2017-06-06 14:58:39
W4KEL-22.3 miles 96°2017-06-16 16:29:15 KM4HRR-92.4 miles 131°2017-06-25 16:53:20
DW46992.4 miles 8°2017-06-25 18:28:22 CW38162.5 miles 109°2017-06-25 18:31:56
DW29682.8 miles 64°2017-06-25 17:59:07 KB0FHF-73.0 miles 281°2017-05-29 23:00:00
DW88683.3 miles 230°2017-06-25 18:27:46 145.31DLS3.6 miles 286°2017-06-24 07:55:53
WD7RSQ-23.6 miles 225°2017-05-29 12:45:22 KS1G-43.7 miles 336°2017-06-25 14:11:36
Stations which heard W4SDM-9 directly on radio –
callsign pkts first heard - EDT last heard longest (tx => rx) longest at - EDT
N3HF-1 23 2017-06-01 08:19:34 2017-06-22 20:53:09 FM18HV > FM18GQ 15.6 miles 187° 2017-06-05 08:33:37
NV4FM-5 26 2017-06-12 17:57:05 2017-06-22 17:42:07 FM18GV > FM18JV 11.1 miles 92° 2017-06-12 18:01:33
KG4GIY 8 2017-06-04 10:13:35 2017-06-04 12:06:28 FM18FS > FM18GR 3.2 miles 124° 2017-06-04 12:06:28
KV3B-1 49 2017-06-04 09:44:02 2017-06-23 08:24:08 FM18HT > FM19JE 26.0 miles 19° 2017-06-20 18:40:13
W4VA-10 46 2017-06-01 08:23:07 2017-06-23 08:27:52 FM18HW > FM18BR 29.8 miles 239° 2017-06-22 17:26:42
N1RM-1 28 2017-06-12 07:53:52 2017-06-23 08:35:20 FM18GV > FM18HW 4.4 miles 44° 2017-06-12 07:53:52
KK4ZUU 31 2017-06-03 15:39:11 2017-06-22 20:52:28 FM18GR > FM18GT 6.3 miles 4° 2017-06-04 10:09:17

Only position packets which were originated by the station are shown here. The range statistics show some extra long hops, because some digipeaters do not correctly add themselves to the digipeater path. Please check the raw packets.
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.
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