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Transmission Line Calculator - This web page allows you to perform transmission line calculations by using an applet instead of a Smith chart

SWR Calculator - BesserNet Reflectometer is a fun SWR calculator and simulator Java applet

Sandusky Valley Amateur Radio Club - Information on SVARC & SCARES

KP3AV Julio - Nuke ham radio web site mainly in spanish with enbedded dx cluster and satellite tracking applets.

The GARP applet - Geographical atlas using radial projection

Mira-T - APRS Display map java applet use expedia maps

Basics of Radio Astronomy - This workbook was developed to support training for the Goldstone-Apple Valley Radio Telescope, but is a resource applicable to all radio astronomy.

A Little Mobile Information - Alan Applegate (K0BG) article on mobile oprtations

MacK2 - A Remote Control Program for the Elecraft K2 Amateur Radio Transceiver using the Apple Macintosh

Yagi Modeler Applet - This java applet/application implements a simple yagi modeling code. The initial input is a really trivial 2 elmenent yagi.

QuickRecord - QuickRecord is a compact application for recording and playing sound on a Microsoft Windows PC. It works on Windows 95, 98, Me, NT4, 2000, and XP. Recording and playing back directly to and from disk files, QuickRecord 2 maintains the simplicity of the standard Windows Sound Recorder applet but without the restrictions.

SkedWizard Priority listing - "Sked Wizard is an applet designed to help radio enthusiast get more enjoyment from their available operating time, ships with a list of ""radio related"" world band programs"

EchoMac - Mac Ham Radio EchoLink Client - EchoMac is an apple macintosh client for EchoLink internet radio network.

Aether - Aether is an ham radio logging for the Mac. Aether gives hams logging software that is as powerful, easy to use, and good looking as the operating system it runs on. Designed from the ground-up using Apple’s Cocoa, Aether supports the latest Mac OS X technologies, and provides the experience that Mac users expect.

WiNRADiO for Mac - WiNRADiO for Mac, WiNRADiO provides Apple Macintosh support for our most popular receiver, the WR-1550e, a medium-range external receiver with frequency range 150 kHz to 1.5 GHz

Morse Code translator widget - Macintosh widget converts text to Morse code and vice versa

MacTNC - MacTNC is simple, configurable terminal software used by amateur (ham) radio operators to control a TNC (terminal node controller). MacTNC performs most of the same functions of other terminal software, but includes buttons for standard commands, and allows the user to configure additional buttons for special purposes. MacTNC works only user Mac OS X because it relies on Unix components of the current operating system.

The KB6IBB Utilities - Ham radio frequency list consolidation software. The Ham Radio database can house a unlimited number of records. Holding frequency information from DC to Daylight. The Radio Scanner Database is designed to emulate a radio scanner. A 5,000 record table is provided and is organized by channel number.

Morse Code Practice Java Applet - CW ear trainer for Java-enabled browsers. Sends custom text, random groups of letters/digits/punctuation, or any random characters. 5-18 WPM code speed (18 WPM character speed).

MacR–1000 - Icom IC–PCR1000 communications receiver remote control for Apple Macintosh computers running MacOsX

Callsign Lookup - Callsign Lookup is a simple, small Apple Macintosh application that allows the amateur radio operator with a dedicated Internet connection (DSL, cable) to quickly access online callsign databases

iHamRelay - iHamRelay offers you more than 2500 repeaters all across Europe and the possibility for you to join the community while sharing your own data

DXCluster for iPhone  ^updated - DXCluster let you know in real time who is on the frequencies and where it was listened the last time. It let you create filters to only see which frequency/CQ Zone/ITU Zone and/or Country and after that you can have an alarm corresponding to a specific Zone or a specific country that raise a popup

APRS on your phone - iBCNU is an APRS GPS position reporting and text-messaging application for the Apple iPhone. When position reporting is enabled, the application will periodically send out location of your iPhone using either 3G or WiFi network and iPhone's built in GPS receiver

Speaker Design - Java applet to design speakers