wiring aprs vx 6r

Baluns on Log Periodic Antennas - Some antenna manufacturers place baluns at the incorrect location in LPDA arrays, or tell you to route the cable incorrectly. This can cause substantial RFI and all sorts of weird problems like RF into house wiring.

G6RV Antenna - A 35 mt. long wire antenna by Maidstone Amateur Radio Society

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

WARC Westside Amateur Radio Club - Ham radio club in west Los Angeles

SP6EIY & SP6RVT Strona domowa - Ham radio page from Polish radio stations SP6EIY & SP6RVT

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

AMTOR demonstration - Youtube video by PR7VX using AMTOR to test performance

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

Yaesu VX-1r considerations - Technical considerations about the Yaesu VX-1

Yaesu VX-2 jumpers - This walkie is sold without the wide band receiver enabled, this is, only 144 and 432 MHz band

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

Cables - A basic article on audio cables, electrical wiring, cable lenght, data cables.

Bandpass Filters for Portable Usage - These are QRP rated 3 Pole Butterworth filters based on a design by K4VX, feature simplicity, almost no insertion loss, and reasonable rejection on the other ham bands.

Anatomy of a Loudspeaker - There are a number of important technical issues relating to the matching of speakers to amplifiers, and to the wiring of multiple speaker systems

QRP 5 Mhz transceiver - A QRP VXO transmitter for 60 meter band by GW4ALG

Multi-Four a VXO QRP Transmitter for HF bands - This transmitter has been designed for use on 20 30 40 and 80 m with 5W output

VXO 80 metre receiver - 80 metre ceramix VXO with schematic and assembly instructions