aprs point

VHF Yagi for 6 m 4 m and 2 m - Triband DK7ZB VHF Yagi antenna for 6 m, 4 m and 2 m with a single feedpoint

Duoband-Yagi for 10m and 6 m - This Duoband-Yagi has a boom of 3.60 m and 3 elements for 10 m 4 elements for 6 m and one feedpoint with 50 Ohm

Understanding Antenna Gain - Antenna Gain is 'the relative increase in radiation at the maximum point expressed as a value in decibels (dB) above a reference antenna'

EA1URO Union de Radioaficionados de Ourense  ^updated - Radioaficion,satelites,APRS,DX,scanner,radioaficionado,PSK31,by EA1URO Union de radioaficionados de Ourense Espana

GC Telecomar - Maker of Smart Tracker, APRS Beacon, APRS Tracker, packet radio modem, aprs telemetry interface module

International Marconi Day GB4MPC - Marconi Point, Cullercoats Special event station

APRS-Alert - APRS-Alert is the front-end half of a application designed to bridge the gap between Amateur Radio and contemporary SMS/Text-messaging capabilities.

Southeast Ohio APRS Development - Collection of overview, technical and planning mterials related to the ongoing development of APRS services in and around Athens County, Ohio USA

TinyTrak 4 and APRS - Tiny Trak 4 APRS and a new IGate

APRS in Deutschland - APRS-DE operating APRS in Germany

Tiny Track I - Tiny Track-I is a simple unit offering the transmission of your position-data (as mobile etc) in APRS , just by using a VHF and a GPS.

BikeCam G1OCN Dave - Live streaming video from G1OCN's motorcycle mobile webcam while he occasionaly drives his motor bike around the South coast of England, with google earth tracking map, APRS callsign G1OCN-10.

WP4MXB Repeater Priority listing - WP4MXB come with lots of information about repaters and aprs systems

Tracking Amateur Radio Satellites - N8VI\'s powerpoint on satellite keplerian elements.

Amateur Radio in Space - The ARRL powerpoint on satellite Operations by WB8IMY

APRS Messenger program - APRS over digimodes including PSK, QPSK and GMSK with digipeating and two way HF internet gateway to the APRS-IS

mAPRS - Ham Radio Symbian OS APRS software

U2APRS Android APRS Tracker - U2APRS is an APRS client application running on Google Android OS.It locates your position using GPS, 3G, and WiFi, and uploads it to the APRS-IS.

APRSISCE/32 - APRSISCE/32 is an Automatic Packet Reporting System (APRS) program, primarily intended for Windows and Windows Mobile (CE), although it will run on Linux and Mac OS under wine. Offer enhanced messaging, announcement support via ANSRVR, and QRU for object query support, can run as a highly configurable Digipeater

Depiction - Depiction mapping software can download and integrate maps, elevation plots, weather data, situation reports, damage assessments, volunteer movement, and more. It interface with your APRS ssystem

aprsdroid APRS for android  ^updated - APRSdroid - Android APRS reporting tool

D-STAR Hot Spot  ^updated - D-STAR Hot Spot is software for Windows that creates a D-STAR 'point of presence' (or hot spot) utilizing an analog radio and a GMSK node adapter. The hot spot creates RF access to the D-STAR network where none previously existed

PocketPacket Mac OS - PocketPacket started as an APRS client for iPhone/iPod Touch/iPad devices, but is also available for the Mac desktop or laptop. PocketPacket incorporates a software-based TNC, allowing you to directly capture and visualize, or encode and transmit 1200 baud packets (AFSK modulation) using a VHF radio transceiver.

MicroMUF - MicroMUF is a windows free HF propagation calculator that you can use to estimate the MUF (Maximum Usable Frequency) and LUF (Lowest Usable Frequency) between any two points on the Earth.

HSMM project using Linksys WRT54G - Create a APRS digipeater and internet gateway using WRT54G