java apps

Helix Calculator - JavaScript Implementation Written by Fred Spinner, W0FMS

Dipole Calculator in JavaScript - Input the desired resonant frequency and it will calculate lenght in inches feet and meters

A Simple 7 element Yagi calculator  ^{updated  pop} - A JavaScript to calculate the dimensions for a seven element Yagi-Uda Antenna

Antenna Trap Calculator - Design your own antenna trap online

Coil calculator - On-line single-layer coil designer

Online Antenna Calculator - Java script antenna calculators for ground planes, half wave verticals, quad antenna, 5/8th wave vertical antenna, dipole and inverted vee antennas

Design your Own Super J Pole - Javascript for calculating the lengths of tubing to be used for the construction of a Super J-Pole in a collinear design

Building traps with coax cable - Tips on how to build a trap using common coaxial cable and coax trap software, by F5JTZ in french

JL Logger - JL is a free contest logger written entirely in Java. Run under Windows, Linux, Solaris, and MacOS X by W1JQ

HA1AH Contest Software - The HA1AH Contest Software is a graphical logging program for radio amateurs. It is a java program and can run on Windows 95, 98, NT4, 2000, XP and Linux.

ODXC Web Monitor - Obninsk DX Cluster Web Monitor, telnet and Java based Web access. Offer a simple DX Cluster web interface.

San Joaquin County Sheriff and Stockton Police - Recorded scanner radio traffic from police and fire department communications. Stockton Police scanner recordings of pursuits, fights, shootings, officer involved shootings, in progress high intensity calls.

New York Live Police Radio  ^{updated  pop} - Listen to NYC Live Police Radio

Douglas: Live Douglas County Sheriff - Douglas County Sheriff dispatch channel

Real time satellite tracking  ^updated - Ground tracks are the trace of the satellite's path over the ground. Amsat, ISS, geosynchronous satellites, navigation satellites, weather satellites, Iridium satellites, visible Satellites. Requires Java

UK Repeaters for iPhone - UK Repeaters is an iPhone app that shows all UK Based repeaters on a map. Each repeater information is shown to allow easy access and programming of your radio

Antenna lookangles calculations - A javascript satellite antenna look angles calculator

D-PRS - D-PRS is GPS for ham radio. Includes DStarTNC2, javAPRSSrvr, DStarInterface, and TNC-X. D-PRS is the act of converting Icom GPS information generated by Icom D-STAR radios in GPS mode into TNC2 fomatted APRS strings.

HF Beam Calculator - A javascipt online calculator for 2 and 3 element beam antennas. Just input frequency and will diplay element dimensions and spacing. Measurements in Feet and Meters by G4VWL

Great Circle Calculator - A javascript online calculator of bearing and distances by G4VWL

DroidPSK - DroidPSK is an application to decode and encode Ham Radio BPSK31 with the build in microphone/speaker or wired to your radio.

SATme - Satellite tracking for a Java-enabled mobile phone, Blackberry device, PDA.

iPhone Ham Radio Callsign Lookup - This webapp provides an iPhone-compatible lookup of Amateur Radio Callsigns. It provides the name, address, and license class (from the FCC’s public records) of any US-Licensed Amateur Radio Operator.

Soldering stations - Summary of available soldering stations

Tube Reference - Electronic Vacuum Tube Reference Manual & Specifications from the RCA Receiving Tube Manual.