APRS - n4lcd.com

APRS - n4lcd.com

APRS A General Overview of the APRS System APRS is a registered trademark Bob Bruninga, WB4APR General Topics APRS Definition & History Typical Equipment Setup Mapping/Tracking Programs Weather Reporting Public Events

The Future Question & Demonstration APRS is a registered trademark Bob Bruninga, WB4APR What is APRS? APRS stands for Automatic Packet Reporting System (although it is frequently also called Automatic Position Reporting System.) APRS was developed in the early 1990's by Bob Bruninga, WB4APR, for tracking and digital communications with mobile GPS equipped stations

utilizing Amateur two-way radio. APRS is a registered trademark Bob Bruninga, WB4APR Bob Bruninga Father of APRS His first experimental protocol was run on a VIC-20 program in 1984 to report the position and status of horses in a cross country endurance run for AMRAD He

developed the current APRS protocol as part of his research for the US Navy while an Instructor at the Naval Academy in Annapolis, MD. to assist in tracking boats in races on the local waterways. APRS is a registered trademark Bob Bruninga, WB4APR Bob Bruninga Father of APRS The predecessor to the current APRS protocol was named APLS and released in 1991. He is still very active

today, and continues to provide support and set standards. In the 13 years since its introduction, he has helped APRS to grow to the extent that it now encompasses just about every aspect of Amateur Radio. APRS is a registered trademark Bob Bruninga, WB4APR What is APRS all about? The APRS System was developed in order to assist amateur radio operators in tracking and monitoring position data.

APRS is used daily in order to assist in Search and Rescue through its tracking capabilities. An original intent for APRS is its messaging capabilities, which can work even in a disastrous time when the Internet is down. APRS can be used to transmit location data, course and speed info, and weather information in a timely fashion using a packet network. APRS is a registered trademark Bob Bruninga, WB4APR More About APRS.

The Automatic Packet Reporting System consists of a very large land based wireless network. This network has nodes nearly every 20-30 miles that relay signals through digipeaters. APRS is used in space to track satellite data and GPS information from onboard GPS receivers. It is also used to monitor telemetry values of weather stations for the National Weather Service (NWS)

APRS has the capability to quickly relay telemetry values to research centers without the Internet. APRS is a registered trademark Bob Bruninga, WB4APR Different than Regular It uses graphical Packet mapping and other data displays. All communications use a one-to-many protocol so everyone is updated in real time.

Generic digipeating so knowledge of the network isnt required. APRS turns packet radio into a real-time tactical communications and display system for emergencies and public service applications. APRS is a registered trademark Bob Bruninga, WB4APR What Equipment is required? APRS was developed to work in a mobile environment, so it was designed

to only use three pieces of hardware. This consists of a transmitter/receiver (Transceiver), a Global Positioning System (GPS), and a terminal node controller (TNC). APRS is a registered trademark Bob Bruninga, WB4APR Basic Equipment A VHF Amateur Radio Transceiver operating on 144.390 Mhz. (USA).

Must be a transceiver as APRS uses a collision detection system to know when to send data. Range of coverage depends on the power of the transmitter. APRS is a registered trademark Bob Bruninga, WB4APR Basic Equipment A standard GPS (Global Positioning System) unit.

There are 24 orbiting satellites used to pinpoint anyone's specific geographic location. They also provide ground speed and altitude measurements. Current accuracy ranges from 1-5 feet. APRS is a registered trademark Bob Bruninga, WB4APR

Basic Equipment A TNC which is basically a radio (or RF) modem. The TNC connects the transceiver to a GPS converting its data into AX.25 Packet protocol. TinyTracs are simple Transmit Only stand alone APRS TNCs

APRS is a registered trademark Bob Bruninga, WB4APR Various Mobile Setups Mobile Tracking Installations utilize a GPS connected to the radio through the TNC The new APRS Ready transceivers like interface, Kenwoods TM- D700 have their own built in GPS GPS TNC

TinyTrak 144.390 Mobile Radio 144.390 Mobile Radio 144.390 144.390 GPS Laptop

Mobile Radio TNC. APRS is a registered trademark Bob Bruninga, WB4APR GPS Kenw ood TM-D700 Various Portable Setups A Portable Tracker is usually low powered and may need a nearby digipeater.

PalmPilot GPS 144.390 TinyTrak 144.390 TNC GPS Standard HT Standard HT

144.390 Battery GPS Kenw ood THD-7A These units work well with bike-a-thons, parades and other community events, along with search & rescue operations and weather nets. APRS is a registered trademark Bob Bruninga, WB4APR Weather Station Setups Weather station setups with APRS are

similar to the normal setups, TinyTrak TNC 144.390 VHF Transceiver 144.390 VHF Transceiver TNC Laptop

144.390 VHF Transceiver However, the GPS unit is usually replaced by outside Weather Monitoring Equipment. APRS is a registered trademark Bob Bruninga, WB4APR Using TNC Function Radios These radios are specifically designed to support ARPS functions in a single package. Just add a basic GPS unit and it is ready! Kenwood TM-D700A Kenwood TH-D7A

Alinco DR-135T MKII with EJ-41U TNC APRS is a registered trademark Bob Bruninga, WB4APR Kenwood TM-D700A A Dual band 114/440 MHz 50/35 Watts Built-in 1200/9600 bps TNC including a digipeater. Built-in screen display of other APRS stations and messaging.

Add a GPS, and the proper cable, or simply key in your position coordinates. APRS is a registered trademark Bob Bruninga, WB4APR Kenwood TH-D7A(G) Built-in APRS functions. Dual band 114/440 MHz. Basic TNC at 1200 bps.

On screen text monitoring Plug in a GPS or key coordinates. APRS is a registered trademark Bob Bruninga, WB4APR Alinco DR-135T/EJ-41U Basic 2 M Radio with optional TNC. Allows direct input from any standard GPS.

Basic 1200/9600 bps TNC Unlike the Kenwood radios, it requires a PC to set it up, and there is no APRS display directly on the radio. APRS is a registered trademark Bob Bruninga, WB4APR And Another Method Uses PC sound card to transmit and receive signals from radio No TNC required AGWPE is an excellent Sound card interface for

Packet Radio available free on the Internet. Simple interface circuitry (The same as PSK31). Requires a modest computer to operate APRS is a registered trademark Bob Bruninga, WB4APR How does the Signal Travel? Aa Direct Relays APRS is a registered trademark Bob Bruninga, WB4APR

How does the Signal Travel? Aa Relays and DigiPeaters APRS is a registered trademark Bob Bruninga, WB4APR How does the Signal Travel? Aa Straight through the DigiPeater APRS is a registered trademark Bob Bruninga, WB4APR How does the Signal Travel? Aa

Multiple Hops APRS is a registered trademark Bob Bruninga, WB4APR How does the Signal Travel? Aa And to the Internet Gateway APRS is a registered trademark Bob Bruninga, WB4APR Mapping/Tracking Programs

Dos-APRS Bob Bruninga WinAPRS Mark Sproul MacAprs Keith Sproul APRS+SA Brent Hildebrand UI-View Roger Barker Xastir Open Source XAPRS Sproul Brothers PocketAPRS Mike Musick APRS is a registered trademark Bob Bruninga, WB4APR WinAPRS and MacAPRS Separate Windows and Mac programs

Precision Mapping and Tiger Maps Supports GPS and weather station input Supports all standard Packet Radio TNCs Supports all standard callbook CD-ROMs for lookup of call signs APRS is a registered trademark Bob Bruninga, WB4APR

WinAPRS (TigerMaps) APRS is a registered trademark Bob Bruninga, WB4APR WinAPRS APRS is a registered trademark Bob Bruninga, WB4APR WinAPRS APRS is a registered trademark Bob Bruninga, WB4APR APRS + SA 32-bit Windows-based

Delorme Street Atlas 4.0 through 9.0 TNC-2 or AGWPE for RF operation Standard NEMA GPS and Weather station support IGate to Internet Email send and receive

Web Server APRS is a registered trademark Bob Bruninga, WB4APR APRS + SA APRS is a registered trademark Bob Bruninga, WB4APR APRS + SA APRS is a registered trademark Bob Bruninga, WB4APR APRS + SA APRS is a registered trademark Bob Bruninga, WB4APR APRS + SA APRS is a registered trademark Bob Bruninga, WB4APR

UI-View UI-View uses bitmap images for its maps. Also, the 32 bit version supports Precision Mapping. It supports TNCs in KISS mode and AGWPE host mode in addition to terminal mode - and host mode allows up to 16 RF ports. UI-View has a full-featured intelligent digipeater.

UI-View has full support for connecting to APRS servers on the internet. UI-View is open architecture. A number of other software developers have written add-on applications providing additional functionality. APRS is a registered trademark Bob Bruninga, WB4APR UI-view Whether it is used just for WX, or display only, or full TX /RX/internet. UI-View is more than capable.

It can be configured as a digipeater to relay packets. With plug-ins, UI-View can receive NWS warnings and plot them on the map. UI-View can really shine in the emergency or event communications role. APRS is a registered trademark Bob Bruninga, WB4APR UI-view Maps

Full support for Precision mapping, plus you can capture many other mapping programs. SA virtual map. It makes it very easy to grab maps from Street Atlas V4, V5, V6, V7, V8 and V9 UI-Terra add-on allows you to make maps from Terraserver. APRS is a registered trademark Bob Bruninga, WB4APR

UI-View Events Operation Exclude/include lists. Here you can choose to exclude everything except mobile stations. Tactical calls -- you can assign labels to call signs. With a plug-in, you can draw an object on the map and transmit it over APRS. This is great for a race route. APRS is a registered trademark Bob Bruninga, WB4APR Xastir

Development is a collaborative effort of programmers from around the world. Xastir supports many map formats and is highly customizable. Xastir runs on Windows, MacOSX, Linux, FreeBSD, Solaris, and Lindows, with many more possible . On Unix-like operating systems, you can run your weather station or GPS on a separate computer as well, which is good for those hams who are already short on serial ports.

Xastir is FREE! under the GPL license and comes with all source code. APRS is a registered trademark Bob Bruninga, WB4APR Adding an Internet Interface Allows you to see more than just local RF. Utilize facilities available only on the Internet.

Low cost backbone between RF networks. World-wide availability. Can run stand-alone without a Radio Interface. APRS is a registered trademark Bob Bruninga, WB4APR Utilizing an IGate An IGATE is a local APRS station that utilizes the APRSserve network to pass all packets heard on their local RF back to the Internet.

It can also act as a gateway to pass messages addressed to local RF stations from Internet only stations. APRS is a registered trademark Bob Bruninga, WB4APR Findu.com mapping Internet tracking developed by Steve Demise K4HG APRS is a registered trademark Bob Bruninga, WB4APR Findu.com Weather Tables Temperature & Dew

Point Rainfall Rates APRS is a registered trademark Bob Bruninga, WB4APR Aprsworld.com Developed by James Jarvis KB0THN Field Day 2004 at Beltsville Home Weather Station Allows simultaneous tracking mapping of the various SSIDs used by a

station APRS is a registered trademark Bob Bruninga, WB4APR On my way to Work Citizens Weather Corps The Citizens Weather Observer Program (CWOP) has become an interesting adjunct to the APRS Internet reporting system.

APRS is a registered trademark Bob Bruninga, WB4APR WXNET and CWOP Purpose Allows non-Amateurs to utilize the APRS network to collect and report on local weather conditions. Does not require any kind of Radio Interface This data is available as a public service for any non-commercial use.

Provides feedback and guidance to weather station operators to help them improve. APRS is a registered trademark Bob Bruninga, WB4APR APRS for Special Uses Bicycle rallies, races

Walk-a-thons, Parades Skywarn Weather Nets Crime prevention patrols Damage assessment Direction Finding Foxhunts Voice for communications, APRS for visual mapping Now integrating into APRN (Automatic Picture Relay Network) APRS is a registered trademark Bob Bruninga, WB4APR Into Space..PCSAT The Prototype Communications Satellite, is a US Naval Academy Aerospace

student project. It was designed to give students real hands on experience in satellite design and operations APRS space frequency is published as 145.825 APRS is a registered trademark Bob Bruninga, WB4APR PCSAT Satellite

PCSAT was Launched in September 2001 from the Kodiak Alaska Launch Complex. It was the first APRS satellite, and has since been joined by 3 other such satellites APRS is a registered trademark Bob Bruninga, WB4APR PCSAT Enhancements

On January 24, 2002 a new phase of experimentation began with the special storeand-forward Priority Communications feature on board PCSAT. This can capture Emergency and Priority messages from the Kenwood THD7 and D700 radios anywhere on the globe and retransmit these signals on the USA VHF 144.39 APRS frequency. APRS is a registered trademark Bob Bruninga, WB4APR International Space Station

International Space Station (ISS) was recently equipped with an APRS receiver on 145.825 Used as a space digipeater in the APRS space satellite constellation Used by the crew to

send messages to friends, family, and amateur radio operators APRS is a registered trademark Bob Bruninga, WB4APR Credits Thanks to the following for earlier research and presentations on APRS. John Beadles N5OOM Tony Campbell W5ADC

Pete Loveall AE5PL Bob Bruninga WB4APR APRS is a registered trademark Bob Bruninga, WB4APR

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