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	Digipeater and other home stations
-5
-6	Operations via Satellite
-7	Kenwood TH-D7 handheld
-8	Boats, sailboats and ships (Maritime)
-9	Mobile (Land)
-10	Operation via DIGI and Internet
-11	APRS Touch-tone users (occasional Balloons)
-12
-13
-14	Truckers
-15	HF

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
Click on above pictures for more information.

CLICK HERE to get a Adobe Acrobat file of the symbols

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 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.

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.

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