computer rotator control

Replacing cables and rotator on a tower - N5AR article on maintnenance works on a crank up tower

FKeyer - Application for the Apple Macintosh computer that provides a CW contesting interface for the popular MacLoggerDX loggging software. FKeyer runs on MacOS X and uses an external keyer such as the MicroHam CW keyer.

N6KRV Sequoia Amateur Radio Group - Founded in 2005 with aim of forming a viable club for Kern River Valley hams to share radio and computer technology on the daily net

WebSDR on 20m, 40m and 80m  ^pop - On this page you can listen to and control a short-wave receiver located at the amateur radio club ETGD at the University of Twente. In contrast to other web-controlled receivers, this receiver can be tuned by multiple users simultaneously, thanks to the use of Software-Defined Radio

Green Heron Engineering - Makers of universal digital rotor controllers including wireless controllers

wb4bcr Receive 4 Square Control Unit - Build a Receive 4 Square Array! Make your own 160 meter 4 square receive antenna.

usmartdigi TNC - A postage-stamp-sized DSP microcontroller imbedded in the TNC-X eliminates the dedicated laptop or PC.

AO-51 Monthly Schedule

AO-27 official site - This site contains the most up-to-date information on AO-27 that can be found. It is updated by the control operators who run the satellite.

FT-1000 Cat interface schematic - N6RK computer to FT-1000 interface

K7BON - Callsigns in Oak - Your call sign, name or specialty item professionally crafted in oak (two thicknesses available), from a computer designed pattern and finished in up to 4 coats of Formby's Glossy Tung Oil.

DERF electronics corporation - Distributor of electronic components like diodes Transistors Microcontrollers Microprocessors connectors, switches, relays, integrated circuits, eproms, leds

TestMart - Dealer of popular test equipment products by aeroflex, agilent, Anritsu, fluke, rohde & schwarz, tektronix xantres glacier computer caltron

FilterCAD - A free computer aided design program to help users without special expertise in filter design to create filters using Linear Technology's monolithic filter ICs. With FilterCAD, you can design lowpass, highpass, bandpass and notch filters

ptt2dtr - Translates CAT PTT commands into COM port DTR line changes. Use COM port PTT instead of CAT PTT control.

Tone Sound Frequency Sweep Generator - Generating of up to eight independent oscillatory processes per each channel with separate frequency, initial phase and amplitude controls.

Voice Keyer - The Voice Keyer is a free Windows based voice keyer. It is very easy to use and it handles up to seven messages. By connecting your computer soundcard to your radio it's possible to just press a button and the computer will CQ for you, to spare your voice. It can also PTT your radio via the LPT port by SM3WMV

Build a Remote Control Antenna Switch - Remote Control Antenna Switch made with two circuits board

Automatic Antenna Switch - Remotely controlled antenna switch that can switch between 5 different antennas by VK2GWK

Description of CB Controls - A basic glossary of main controls you can find in a CB Radio

Lightning Protection : Protecting each I/O line - KB22UT Article on how protecting ham radio station and in particular I/O Lines such as AC power, coax cable, control circuits, telephone line.

30 Volt Computer Power Supply Stack - What do you do with a bunch of old computer power supplies?

Sound Card Interface by VK6YSF - Presented here is a transceiver to computer sound card interface complete with automated transmit key function. A sound card interface is simply the audio coupling of a computer soundcard and a transceiver to allow various computer applications that send and receive SSTV, RTTY, PSK31 and other similar modes based on soundcard generated signals.

Rig - Computer CW Interface - Make your own interface, two schematics for building an interface using the RTS line by N3UR

Sound Card interface - Interface to insulate the radio circuits from the computer by VK2GWK