saint john

Car Roof Antenna for 20 meters - A project by G3LDO about a car roof antenna for the 14 Mhz

Low cost 1:1 balun - A balun don't depend on use of ferrite beads, but use steel wool to attenuate any RF on the outer braid

The Clemens Match by W9ERN - Balanced feed with coaxial line by John F. Clemens W9ERN

Four Band Antenna - This 4 band up and outer antenna covers 21 to 10 Mhz and can work on 28 Mhz as well by W9SCH

Importance of noise reduction in wires antennas - An old post by John Doty about effects of noise in longwire antenna.

VHF/UHF Folded Diplole - This is a two element colinear design for vertically polarized radiation. It may be constructed for use on either 2m or 70cm

The FD4 Windom antenna - This antenna originated from darc QRV magazine in 1971 should be attributed to DJ2KT, works on 80 40 20 10 meters without ATU, based on the Windom principle.

EB5AGV Vintage Radio and Test Equipment - EB5AGV / EC5AAU Boatanchor collection. Useful data on TV-testers, Collins, Drake, Hammarlund, Hallicrafters, National, Heathkit, EF Johnson.

Radio Repair Guy - This site is dedicated to the repair, restoration, preservation and sale of old collectable radios, both bakelite and wood.

Alfa Tango Netherlands - Website of the Dutch AT group

Low Band Monitor - The Low Band Monitor is a monthly twelve page newsletter edited by Lance Johnson, that was introduced in April of 1993. The main objective of this newsletter is to promote Low Band DXing on the 1.8, 3.5 and 7.0 mz. Amateur Radio Bands

QSLing - K3WWP QSLing page

JARS - Johnson Amateur Radio Service - Amateur Radio Club Serving Johnson and Southern Tarrant Counties in Texas

M5AML John - M5AML - SSTV, Aerials (antennas), SSTV, Rallies, UK prefixes

Lance Johnson Engineering - Manufacturer of ham radio accessories, D-LAY-5 Rotor Brake Delay, ECP-1 Remote 40-80-160 Preamplifier, GP-1 Radial Buss , Kansas City Keyer Elizabeth CO

The ElectraSlide Antenna - Modification of the DK3 design by Don Johnson, W6AAQ. No voltage dropping, operates on the full 12 volts. The control switch and the matching toroid are supplied. All you need is a standard 3/8 by 24 thread ballmount, 2 wire sheilded microphone cable for control wiring, and a CB whip cut to resonance.

AE5X QRP operations - A nice resource from AE5X John a QRP opertator

W9JFL Shack - John talk about Yaesu VX-3 as an interesting upgrade from VX-2, other reviews cover Kenwood TH-D7 TH-6A Icom-91A Kenwood TM-D700A Yaesu FT-817 and Icom IC-7000

HamInfoBar - Ham Radio & SWL Toolbar Priority listing - Free toolbar for radio hams & SWLs: Search QRZ.com, HamCall, FindU.com, Google, Wikipedia, eBay and other useful engines. Check the latest DX spots. Get links to QSL, satellite, forums, propagation, broadcast radio, maps etc. RSS feeds including Amsat & the latest eBay ham specials. Listen to ARRL, RSGB and WIA news & other radio stations. Plus lots of other features!

linSmith - Smith chart utlity - A Smith charting program. You can enter either discrete components or transmission lines, see the results on screen and/or generate Postscript output. Component values can be changed numerically or using scrollbars.

SPLAT! for Windows - This free software is useful for visualizing terrain and performing Longley-Rice path loss and coverage prediction using the Irregular Terrain Model. A Windows port of the Linux-based SPLAT by John Magliacane.

50 Mhz solid state 600W amplifier - G3WZT John Matthews project of a 600 Watt solid state linear amplifier for the 6 meters band

Remote antenna switch - A remote antenna change-over switching using relay powered over the coaxial feeder

70 cm Power splitter - A simple accurate power splitter for the 70cm uplink to Oscar 13 by G8EUX

A QRP SWR meter - A real QRPp VSWR Meter project by DJ1ZB