audio tx

K4TX Delta Loop for 40 Meters - 40 Meter 2 Element Parasitic Delta Loop

The Bazooka antenna - The Bazooka-antenna was developed by the staff of M.I.T. for radar use. The original Bazooka used coaxial cable for the entire radiating elements.

A standard double bazooka antenna - Article by Ed WE6W on a double bazooka antenna

Bazooka antennas compared to dipoles - Article and comparison between bazooka antennas and dipole, taking care of effieciency and bandwidth

Folded Bazooka Antenna - Article on building a folded bazooka antenna

Bazooka vs Dipole - Discussion, will a double bazooka outperform a dipole, enough to notice a difference on 40m.

Transmitting Line Condition vs. SWR Table - One another useful Table for the HAM's practice.

KB2SEO/B - Located in Eton, GA tx on 28.238 Mhz

HB9AZT Internet remote station in switzerland - HB9AZT offer a free Ham Radio Receiver (TS2000) with live audio stream. Login is required for full control, available for paying members with valid radio amateur licence.

ARRL Audio News - ARRL Audio News contains highlights taken from the League's weekly publication, The ARRL Letter. ARRL Audio News is available via internet in mp3.

Salina Abilene Manhattan Live Scanner Priority listing - This page is a live audio feed of public safety and business radio communications in and around the Salina, Abilene and Manhattan, KS area. Audio source is a Radio Shack Pro 2006 scanner. Feed is with Windows Media Encoder. Your requirement is Windows Media Player version 9 or better.

DX Audio Files - MP3 Sound Clips - International Medium-Wave DX by Mark Connelly, WA1ION

G3TXQ Broadband Hexagonal Beam - MW0JZE Manufacturer of the G3TXQ Broadband Hexagonal Beam - HexBeam Antennas

NETCERTUS ampsequencer - Advanced microprocessor driven control board specifically designed to buffer CW key signals while switching the amplifier to transmission, it can also be used to provide proper TX delay timing for RTTY.

House Of Tubes - High-quality brand name tubes ideal for use in audio amplifiers and ham radio equipment at low prices, including used and hard to find tubes.

ABC Dx Fundamentals of the Art of DXing - Fundamentals of the Art of DXing, an interactive tutorial, contains animated graphics & audio by Don Boudreau, W5FKX

Geophysical Alert Message wwv.txt - Broadcast via WWV and WWVH at 18 and 45 minutes past the hour. This message is updated every 3 hours. Reports current Solar-terrestrial indinces, Solar Flux, A-index, K-Index, forecast for space weather storms. Prepared by the US Dept. of Commerce, NOAA, Space Environment Center

Akron Antique Audio - Purveyors of Quality Vintage Tube Audio & Electronics and Vintage radios, Sales Service, Repairs & Restorations of quality vintage tube Electronics, Located in Akron Ohio

BEIJING ELJVT - Sell the China made electron tubes over a long period of time, the vacuum tubes/electron valves/Power tubes/Audio Tubes/Thyratrons/Magnetrons and accessories, the tube sockets, the vacuum capacitors, high voltage ceramic capacitors, aluminum electrolytic capacitor.

Wdecode - Old unsupported DOS and Win 3.1 RTTY (Baudot), SITOR decoder. Does not support TX.

500 WATT PA by SM0VPO  ^pop - 500W Power Amplifier by Harry Lythall - SM0VPO

Build An Audio Speech Processor - When one operates at low power on SSB, speech processing becomes almost essential to get through the QRM. The circuit is a low cost speech processor that will perform well with a minimum of construction effort.

A simple VOX circuit - Here is a 3 transistors 6 diodes circuit that is a Voice Operated Tx PTT control as well as an ANTI VOX circuit to stop mis-operation from Rx noise by G8MNY

Choosing a headphone for 160m - Weak Signal Audio 160m, choosing a headphone for weak signals reception

A cheap S Meter - A low-level voltage meter and could even be used for audio purposes.