WB4DPC's Home Page

My APRS Information Page

Automatic Position Reporting System (APRS)
APRS Logo
WinAPRS
APRS+SA
UI-View Logo

U.S. Cities & Property
Stats on people, homes & more in U.S. cities & towns.
Lutz, Florida
Tampa, Florida

APRS was developed by Bob Bruninga, WB4APR, as a real-time local tactical communications system for rapidly exchanging digital data of immediate value to operations. This really took off when GPS became available and MAPS were integrated into the system for tactical situational awareness of everything in the net. In the 13 years since its introduction, it has grown to encompass just about every aspect of Amateur Radio. For an introduction to APRS, CLICK HERE to get the big picture of what APRS is all about...

APRS by Bob Bruninga
APRS by Bob Bruninga (PPT)
Fixing the 144.39 APRS Network
Offical UI-View32 Web Site
WinAPRS / MacAPRS Web Site
APRS+SA Home Page
javAPRS Web Page
Convert Lat./Lon. DDDMMSS to Decimal
Live Florida APRS
APRS Florida
APRS Stations Near Tampa, FL (last 4 hours)
My JavaAPRS Page
Live My Home APRS Digi WB4DPC-10
Live My Home TCP/IP APRS WB4DPC
Live My Mobile APRS WB4DPC-9
Live My FT1DR or FT2DR APRS WB4DPC-7

Live APRS lookup:  
APRS location lookup provided by findu.com



SSIDs for APRS (ref APRS protocol revised 2 June 2004)

SSID Type of station
No SSID Home, or fixed base operation
-1 Digipeater and other home stations
-2 Digipeater and other home stations
-3 Digipeater and other home stations
-4 HF to VHF Gateway
-5 IGate (not home station)
-6 Operations via Satellite
-7 Hand-held Transceiver
-8 Boats, sailboats and ships (Maritime)
-9 Mobile (Land)
-10 Operation via DIGI and Internet
-11 APRS Touch-tone users (occasional Balloons)
-12 Portable Units, such as Laptops, Camp Sites, etc.
-13 Not Used
-14 Trackers
-15 HF Operation

NOTE: If you operate more than one station at the time, with the same callsign, make sure you have different SSIDs for each setup, or the system will not be able to distinguish between the different stations!


PHG Table

The Power Height Gain (PHG) data is an additional field inserted within Digipeater beacons, giving details about the setup, making it possible to calculate an estimated area coverage (using suitable software). TM-D700 and TH-D7 will "decode" these data and make them avaialble on the display (use List, then scroll to last screen of a callsign).

Item/Digit
0
1
2
3
4
5
6
7
8
9
Power (W)
0
1
4
9
16
25
36
49
64
81
Height (ft)
10
20
40
80
160
320
640
1280
2560
5120
Gain (db)
0
1
2
3
4
5
6
7
8
9
Direction
Omni
NE
E
SE
S
SW
W
NW
N
-

Where:

  • Height is based on antenna height in feet above average terrain
  • Gain is the antenna's gain in dB
  • Direction is the main antenna direction, or 0 for Omni

APRS PHG Calculator

On my station I use PHG7360.


Fill-in Digipeater

What if I am in a bad RF location?

Even if you think you are poorly located, and that a digi would be of no use to anybody; what you will find is that mobiles in your area will benefit greatly if you have at least WIDE1-1 set as a digipeater Alias. This will pick them up from your poor RF location and relay them onto the APRS network.

Explanations and Setup info for a Fill-in digi is found here.

KPC3+ Digi Setup


Packet Radio Tracking TNC's
TinyTrak3Plus
TigerTrak
OpenTracker
KPC3+ TNC
Click on above pictures for more information.


APRS Symbols

CLICK HERE to get a Adobe Acrobat file of the symbols


Orlando to Tampa

Tracking me running around Orlando, Florida and then returning to Tampa, Florida


My APRS Tracker Setup

  • ChargeGuard CG-12D. This turns on when the engine is started and turns off 1 hour after the engine is shut off. Powered off the accessory outlet in baggage compartment.
  • Radio Shack Triple Socket underdash accessory outlet, powered from the ChargeGuard CG-12D.
  • Icom IC-T81A powered from the Triple Socket.
  • TinyTrak3Plus powered from the Triple Socket.
  • Deluo GPS Antenna/Receiver powered from the TinyTrak3Plus.
  • Comet RS-520 Trunk/Hatch Antenna Mount.
  • Comet SBB-5 Dual Band 2m/440 Antenna.
My Yaesu VX-8R Setup

  • Yaesu VX-8R.
  • Yaesu FGPS-2 GPS Antenna Unit.
  • Yaesu CT-136 GPS Antenna Adapter.
  • Yaesu MH-74A7A Waterproof Speaker Microphone.
  • Yaesu FNB-102LI Li-ion Battery Pack (7,4V/1,800 mAh).
  • Yaesu E-DC-5B Filtered/Fused Cigarette Lighter Cord.
  • UC-1 Universal Charger & VX-8R Cup.
My Kenwood TH-D7A Setup

  • Kenwood TH-D7A(G).
  • Deluo GPS Antenna/Receiver, adapter cable and GPS cable powered from a cigarette lighter socket.
  • Kenwood PG-3J Filtered/Fused Cigarette Lighter Cord.
  • Kenwood PG-4W Connection Cable to Computer.
Above TinyTrak3Plus, Deluo GPS and cables purchased at Byonics

My TinyTrak3Plus
My GPS Receiver/Antenna
My Mobile Antenna
My Kenwood TH-D7A Setup
My Yaesy VX-8R

My APRS DIGI Station

  • Alinco DR-135 Mk II 50w VHF FM Transceiver.
  • Kantronics Packet Communicator 3 Plus (KPC-3+).
  • Cushcraft Ringo Ranger II ARX-2B 7db Gain Base Antenna.
My Home DIGI Station
  
My Home DIGI Antenna

 APRS is a registered trademark of APRS Software and Bob Bruninga, WB4APR. 

Return to www.mshepp.com/hamradio.htm

Return to www.mshepp.com/

73's de Mike, WB4DPC

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