austin, mn

160m Helical Project - An helical antenna for 160 meters band by G0THS

Slim Jim Antenna - Slim Jim 2 meter omni directional vertical antenna

A 144 MHz turnstile antenna - Omnidirectional and horizontally polarized VHF antenna

3 Elements 40m full size U Antenna - 40 m three elements U antenna at 25m hight.

1 to 1 Current Balun - A 1:1 current balun by N5ESE

1:4 Current Balun - This project is intended to aid in tuning a balanced antenna or feedline that has a high impedance 100-600 ohms by N5ESE

Delta loops for 15 20 and 30 m - Full Wave Delta Loops for 15, 20 and 30m with perimiter dipole, quiet, low TOA, mono-band - a perfect stealth omnidirectional solution

144 MHz Halo Antenna - This halo antenna was built to have an omnidirectional coverage while working in VHF contests.

Discone antenna - The basics of what is a discone antenna for wide band or bandwidth omnidirectional applications.

Lindenblad Satellite Antenna by KL7UW - Omni-directional circular polarized satellite antenna project by KL7UW

Slim Jim antenna notes - Some Notes on the Slim Jim Antenna by Dave Coomber M0UXB

Discone antenna - About the basics of what is a discone antenna for wide band or bandwidth omnidirectional applications

NA4L - The NA4L.com page is about,mostly WIRE antennas

GB3MN and GB3VT Streams - 3.697 Mhz 80 Mtr Late Night Net[22.00gmt-05.00gmt]HF SSB. GB3VT Stoke on Trent 2 Mtr Amateur Radio Repeater 145.725Mhz[05.00gmt-22.00gmt] These streams now run back to back with high quality 64kbps aac+ and are availiable 24/7/365.

Cypress Industries - Manufacturer of Custom Cables and Cable Assemblies in Austin, Texas and China

VHF Propagation Maps - Experimental maps that show real-time VHF propagation derived from analyzing data gathered from the APRS-IS network.

Omnidirectionnal antenna for the 23 cm band - Building an omnidirectionnal antenna for the 23 cm band

4CX250B PA regulated supplies - A PA project by John, G8MN

Lead Acid Batteries - An interesting article on lead acid batteries by G8MNY

144/432MHz Homebrew Antenna Diplexers - VHF UHF diplexer by G8MNY

DC RF Sensing PA Switching - Circuit for dc/rf sensing pa switching from g8mny

Passive CW headphone filter  ^updated - This filter is a plug in adapter that has no batteries but gives very good performance by G8MNY

High AMP Crowbar Protected PSU - A crowbar protected PSU project by G8MNY

12V System Surge protection - A surge protection project by G8MNY

TenTec Omni VI AGC modification - Modification leaves nearly all of the existing Omni agc circuitry intact, simply add an audio detector which modifies the delay characteristics of the original system by G3IXQ