high voltage

JustRadios, Capacitors for Antique Radios - "Sells high voltage film and electrolytic capacitors for antique tube radios. Carries 630 volt metal-film, metallized and mylar film capacitors as well as electrolytics. Also has ""capacitor"" tips for antique radio restorations."

F9HS VHF EME - My hamradio activity : very high frequency communications using the moon as a passive reflector.

Gizmotchy Antennas - The Gizmotchy high performance horizontal and vertical beam antenna for 2/6/10/11 meter bands

Spectral - High End isopole VHF & UHF antennas for Amateur, Commercial and Military applications.

Balun Designs LLC - Balun Designs wind high quality baluns and ununs for Amateur Radio and commercial applications based on the researched and tested designs of Dr. Jerry Sevick, W2FMI.

Symek - Packet-Radio-Controller for amateur radio, CB and commercial applications. Data radios (transceivers), receivers and transmitters for high speed data communication Assemblies for satellite ground stations, special receivers and transmitters.

Sangean - Sangean is the leading manufacturer of short wave and pocket radios around the world. Built with precision, quality and the highest technology

F4DAY technical website - ATV and high speed data signalling projects

W3OI Radio Club - Lehigh Valley Amateur Radio Club

The VHF Homepage of G1HWY - High speed cw meteorscatter station

W3SE Wes - High speed meteor scatter and contest information

VOACAP Quick Guide - A Quick Guide to using VOACAP - Point-to-Point High-Frequency Ionospheric Communications Analysis and Prediction Program

APRS Point  ^pop - APRSPoint is an implementation of the latest APRS standard with high quality map support. With APRSPoint, you don't have to scan maps any more.

DART - Clean up audio files and record high quality audio CD's!

Beacon-Prediction Wizard Priority listing - Specialized interface for the communications-analysis-prediction engine provided by VOACAP, predicts the expected performance of high frequency, HF, radio systems

WSJT High Speed Meteorscatter - "Software uses four-tone frequency-shift keying for meteor scatter. WSJT stands for ""Weak Signal communications, by K1JT"", and plans call for the program to include more than one communication mode."

VisualMS - presentation of a visual method of working MS by displaying incoming dots & dashes of high speed morse code bursts in real time, reading letters directly off the screen by EB4GIA and EA4EOZ

SpotCollector - A free application that captures DX and WWV spots from up to 5 internet clusters and a local packet cluster. DX Spots are merged and stored in a Spot Database on your PC, enabling you to monitor, sort, and filter them in real time; known LotW participants are highlighted, as are needed stations. WWV spots are plotted to show SFI, A, and K over the last solar revolution.

XASTIR - Xastir is program for receiving and plotting APRS™ position packets. Development is a collaborative effort of programmers and amateur radio enthusiasts from around the world. Xastir supports many map formats and is highly customizable. Xastir runs on Windows/MacOSX/Linux/FreeBSD/Solaris/Lindows. It supports 125 map formats, several types of TNC's and weather stations, Festival speech synthesizer, AX.25 networking (Soundmodem/Baycom/SCC!) and seven languages!.

RDFT - HDSSTV - High definition SSTV software, Redundant Digital File Transfer

SRL QuickSilver QS1R VERB - The QS1R VERB is the most advanced open source digital down conversion (DDC) receiver board on the market. It features a Linear Technologies LTC2208 16 bit, 130 MSPS Analog Digital Converter (ADC) and an Altera EP3C16 Cyclone III FPGA. Connectivity to the PC is through a high speed USB 2.0 interface. QS1R covers 15 kHz through 55 MHz in its standard configuration and can be used in undersampling applications to 300+ MHz.

1.5 to 30 Mhz RF Amplifier  ^pop - This high range amplifier is very small [SB200 size] Vacuum variable input and output caps as well input and output switching.

K8CU Technical Topics - Well documented Amateur Radio HF/VHF antenna projects, high power Russian GS35B RF amplifiers, mobile RFI solutions, related accessories, vintage radios, Six meter equipment, and useful techniques by K8CU are inside.

How to obtain a dual voltage without a transformer - How to obtain a dual voltage without a transformer

A secure power supply - Dchematics and photos of a secure power supply (short-cut, Rf feedback, high voltage etc.) by iz7ath