40 windom

N3OX Flex Vertical for 40m - N3OX three meters Flex Vertical, a Short, Frequency Agile Vertical for 40 meters

Spitfire Antenna - A multiband antenna for 40 to 160 meters with control box project by HA8RM

Parasitic Delta Loops for 40m - 2 element 40 meter parasitic delta loop antenna by PY4VE

40 meter phased delta loops - N6AQ delta loops antennas for 40 meter band

Fractal Yagi - FYI FQY Another look at the Fractal Quad Yagi antennas by KF7BS

Squid poles as portable multiband antennas - Fancy a cheap, collapsible self-contained portable antenna for 80, 40, 30, 20 and 15m that works really well and can be erected in minutes, by VK7JJ

Vertical Dipole for 40 Meters band - A lightweight portable vertical antenna for 40m

40 meter reversable Quad - 3 Element reversable quad antenna for 40 meters band

The Lazy 7 - A 9 band stealthy Fly-By-Night Antenna Eham article by N4UM

Vertical Dipole 10-40m - A multiband vertical dipole antenna by ON4BAI

HF Blaster - The antenna is designed to cover 40M through to 10M meters, mounted on a fishing pole and a 4:1 balun by 2E0SDR

The W3EDP 85 ft end-fed antenna - An 85ft wire fed against a 17ft counterpoise that works well in 80 and 40 meters

W3EDP Antenna by OK1RR - W3EDP is a portable end-fed antenna that can work 40 to 10 meters with a tuner

The W3EDP antenna - a fresh look - An 84 ft multiband end fed antenna working 80m to 10m and the WARC bands

3 elements Yagi for 7 MHz - A 3 element yagi beam for 40 meters band

H40FN H40FK Temotu WebSite - H40FNoperated by DK9FN and DG1FK using H40FK in digital modes

Nunsfield House Amateur Radio Group - For more than 40 years the Group has been a leading light in the amateur radio community around the Derby area.

WebSDR in Washington USA - WebSDR receiver by KC7IGT on 40 meters located in RENTON, WA USA

Morse Code at 140 wpm - ARRL Article on high speed cw

New York City Area Repeater Directory - 144/220/440 repeater directory centered on New York City

Elecraft K2 - Narrow Bandpass Filter - This note covers narrowing the K2\'s 40M bandpass filter to cover the narrower 40M band and reject strong out of band broadcast interference

The Two Module, 400 Watt RF Amplifier 80 Meters - This Class E RF amplifier will deliver up to 400 watts of RF output

TenTec 1300-Series - TenTec 1300-Series QRP CW Transceiver Kits

Yaesu cloning cables - Make a Yaesu cloning cable for Yaesu radios ft-847, ft-857, ft-23, ft-90 FT-1500, FT-1802, FT-2800, FT-2400, FT-2500

KB9YIG - Soft Rock 40 - These pages document some of the experiments with KB9YIG\'s Soft Rock 40 receiver