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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°57.01' N 77°21.40' W - locator FM18HW78EA - show map - static map
2.1 miles Southeast bearing 130° from Herndon, Fairfax County, Virginia, United States [?]
2.9 miles Northeast bearing 55° from Oak Hill, Fairfax County, Virginia, United States
17.6 miles West bearing 283° 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: 2017-01-19 08:34:54 EST (5h37m ago)
2017-01-19 08:34:54 EST local time at Herndon, United States [?]
Course: 12°
Speed: 40 MPH
Last telemetry: 2014-12-16 08:45:09 EST (765d 5h27m 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>DIFW0Q via KV3B-1*,WIDE1*,WIDE2-1,qAR,KC3BHK-1 (good)
Positions stored: 14329
Packet rate: 124 seconds between packets on average during 1116 seconds.
Other SSIDs: W4SDM-1 W4SDM-6
Stations near current position of W4SDM-9 - show more
callsign distance last heard - EST      callsign distance last heard - EST
AK4AG-993.1 yards 329°2016-12-31 08:55:51 443.00RES0.6 miles 0°2017-01-19 14:01:00
KM4WWX0.6 miles 349°2017-01-09 21:26:45 N1RM-10.7 miles 323°2017-01-19 14:01:01
N1RM-70.7 miles 323°2017-01-04 22:51:11 N1RM-60.7 miles 322°2017-01-15 13:28:14
KM4WWX-70.7 miles 13°2016-12-28 06:50:30 N4TVC-71.1 miles 333°2017-01-12 11:36:07
KG4ICG1.7 miles 277°2017-01-15 23:18:25 WD7RSQ-41.7 miles 267°2017-01-13 10:06:56
KM4HRR-91.8 miles 119°2017-01-17 21:36:56 KM4HRR1.8 miles 118°2017-01-18 13:29:43
KM4HRR-i1.8 miles 117°2017-01-17 03:35:25 KM4HRR-71.8 miles 117°2017-01-13 16:46:09
DW57762.0 miles 90°2017-01-19 14:04:04 N2LEE-102.0 miles 330°2017-01-19 13:51:44
N4LWW-92.3 miles 277°2017-01-19 07:56:24 W4MRW-12.4 miles 243°2017-01-04 08:10:09
DW46992.4 miles 7°2017-01-19 14:08:25 CW38162.5 miles 110°2017-01-19 14:01:47
Stations which heard W4SDM-9 directly on radio –
callsign pkts first heard - EST last heard longest (tx => rx) longest at - EST
N3HF-1 9 2017-01-03 08:29:49 2017-01-19 08:18:16 FM18HU > FM18GQ 13.0 miles 193° 2017-01-17 08:18:27
NV4FM-5 10 2017-01-03 08:27:21 2017-01-19 08:16:18 FM18HV > FM18JV 8.9 miles 84° 2017-01-18 18:11:25
KV3B-1 15 2017-01-05 08:25:53 2017-01-19 08:34:54 FM18HU > FM19JE 24.4 miles 14° 2017-01-18 18:29:50
W4TTU 2 2017-01-04 18:12:52 2017-01-04 18:27:17 FM18HV > FM19HB 10.0 miles 2° 2017-01-04 18:27:17
W4VA-10 24 2017-01-04 18:30:33 2017-01-19 08:24:20 FM18HU > FM18BR 27.2 miles 253° 2017-01-18 18:27:28
N1RM-1 8 2017-01-04 18:14:56 2017-01-19 08:34:30 FM18HV > FM18HW 3.5 miles 15° 2017-01-10 17:13:59
KK4ZUU 17 2017-01-10 18:41:08 2017-01-15 19:53:21 FM18HU > FM18GT 2.0 miles 238° 2017-01-10 21:23:54
KS1G-1 3 2017-01-04 18:12:21 2017-01-17 08:32:01 FM18HW > FM18HX 4.0 miles 341° 2017-01-17 08:32:01

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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