base towers

Homebrew Pac-15 Vertical - This page shows a homebrew vertical antenna based on the Pac-12 antenna design.

Oscar Kilo Sweden DX Group Priority listing - Radio DX club based in sweden

YB9BWN Beacon - Homebrew crystal-based with IRF510 PA at 2W into a dipole

Club Log - Welcome to Club Log, a web-based tool for producing DXCC league tables, log search services and most-wanted lists for ham radio clubs and societies.

W4BOC Alford Memorial Radio Club - Based in Stone Mountain Georgia

The Nittany Amateur Radio Club - The club is based in State College, Centre County, Pennsylvania, the geographic center of the Commonwealth, in the middle of the Allegheny Mountains.

Penninger Radio - Portable Base Systems, Mast Clamps, Aluminum Tubing

G WHIP - The 1960s mobile/base antenna returns, double G Whip for base use.

Ultrasonic Systems - Manufactures high performance spray coating equipment based on patented ultrasonic spray coating technology.

Link Instruments - Pc based test and measurement equipment and instrumentation: digital oscilloscope, logic analyzer and spectrum analyzer.

Signatec - Signatec manufactures pc based data acquisition waveform digitizers pci daq boards, digital signal processing pci dsp boards, waveform signal generator pci dac boards, and real time waveform recording products for the signal technology market.

QTH locator or Map square with Google Maps - Based on Google Maps displays corresponding QTH grid square or helps to find one by pointing on the map.

FM Repeater Database - Via this interface you have access to one of the biggest databases on amateur radio voice repeaters.

Repeater and Broadcast Transmitter Database - Searchable database of amateur repeaters and broadcast transmitters. The database covers the fifty U.S. states, the District of Columbia, and the ten Canadian provinces.

5 Amp power supply for portable usage - A 13,8v/5Amp 78H05 based power supply for portable use. In this example used to power up a Yaesu FT-817

Hudson Valley Towers - Tower installer, provide service in NY parts of CT, MA, VT, PA and most of NY and south to NJ USA

Display Electronics - Surplus electronics dealer, based in England

Cupeles Electronics LLC - Two way radio communication services for Kenwood Icom Yaesu radio and ameritron drake cliperton henry heathkit amp yaesu kenwood linear amplifiers based in Harrisburg, PA by WB3M

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

Building of CU 4m Beacon CU8DUB/b - Beacon is based on a old 4m Storno CQF632 from PA who OZ2M got in Weinheim

Two PIC-Based Keyers - By Andy Palm N1KSN

Ligthning: Protecting Towers - An interconnected concrete tower base can help the tower ground system.

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.

Ultra-Simple Oscilloscope - This homemade tube oscilloscope is based on the WaterMan Pocket-Scope 0510A, a 3 tube oscilloscope made in 1946.

Virtual Oscilloscope - The oscilloscope simulation shown on this website is based on the HAMEG HM203-6 20 MHz oscilloscope of Hameg GmbH in Frankfurt/Main, Germany