40 m antenna

508 links - and 10 categories

40m Quagi Beam - A 7 MHz wire antenna that is a mix of a Quad and a Yagi design. This antennas are often used on VHF.
[ Hits: 1060 | Votes: 4 | Rating: 7.75 ]

7 MHz Alumium Delta Loop - An inverted triangle Delta Loop Antenna for the 40 meter band made with aluminium pipes, each element is 14,2 meters including a home made aluminium mount.
[ Hits: 1305 | Votes: 6 | Rating: 6.67 ]
40-10 Delta Loop Antenna - A multi band inverted delta loop antenna project that can be used from 40 to 10 meters band with full details and analysis of antenna performances on each band, document includes EZNec reports and setup pictures
[ Hits: 16626 | Votes: 54 | Rating: 7.29 ]
2 element Delta Loop for 40m - A hand made project by I5CDF of a 2 elements Delta Loop antenna for the 40 meters band in Italian
[ Hits: 2891 | Votes: 7 | Rating: 4.86 ]
Full Wave Delta Loop for 7 MHz - An homebrew project of a full wave delta loop antenna for the 40 meters band with dimensione, picture and assembling instructions in Indonesian
[ Hits: 780 | Votes: 1 | Rating: 8 ]
The 40m Delta Mono-Loop - A delta loop antenna project for the 40 meters band, include dimensions 80 meters band, with construction details, schematic and tuning instructions
[ Hits: 4047 | Votes: 10 | Rating: 6.89 ]
Short Delta Loop for 40m - A youtube video of a Short Delta Loop antenna, only 8,5 meters per side. This project use a loading coil of 56,7 uH for electrical matching.
[ Hits: 3941 | Votes: 15 | Rating: 6.46 ]

40 Meters 3 element Wire Yagi - A three element wire yagi antenna for 7 MHz project plan with drawings and EZNEC model
[ Hits: 2197 | Votes: 7 | Rating: 4.71 ]
2 Element Helical Yagi Beam for 40m - A helically wound two element 40 meter yagi beam antenna from a 1974 QST article
[ Hits: 6661 | Votes: 17 | Rating: 6.52 ]

Simple 20-40 m Dipole Antenna - A simple TRAP-dipole project for 20 and 40m bands includes EZNec simulations
[ Hits: 1743 | Votes: 5 | Rating: 6 ]
20 40 80 Trapped Dipole - An homemade portable trapped dipole antenna for 40 and 80 meters band with an optional extension for the 20 meters.
[ Hits: 1403 | Votes: 9 | Rating: 5 ]

40 m Wire 4 Square Vertical Array - 40 meter four square vertical array using four full-size 40 meter ground plane antennas, using only two radials
[ Hits: 1069 | Votes: 2 | Rating: 9 ]

The $4 special antenna - A multiband wire antenna with a twinlead feedline that can be easily tuned in several bands, witha 33 ft per leg you can have a 40 to 10 meters band coverage
[ Hits: 2268 | Votes: 4 | Rating: 7.25 ]

Portable link dipole - A lightweight inverted vee antenna that can be supported by a 10 metre long fiberglass squid pole. The antenna is designed to cover 10, 15, 20, 40 and 80 m bands.
[ Hits: 1682 | Votes: 4 | Rating: 6 ]

The Quagi Antenna Turns 40 - It has been 40 years since the VHF-UHF Quagi antenna--a combination of the desirable features of a Yagi and a cubical quad--was developed and the design was first published in the newsletter of the Southern California VHF Club, a forerunner of today's Western States Weak Signal Society.
[ Hits: 467 | Votes: 1 | Rating: 10 ]

Balloon Vertical Omni-Antennas - Experimenting vertical wire antennas for 40 and 20 meters supported by balloons resulting in excellent gain in RX and good overall performance against horizontal dipole
[ Hits: 771 | Votes: 1 | Rating: 5 ]
20m 40m trapped squid pole antenna - An homemade portable vertical antenna with a trap near the mid point of the main element. The trap is made with 42mm diameter PVC pipe with 9 turns of wire on it
[ Hits: 3020 | Votes: 5 | Rating: 5.2 ]

W3DZZ Multi-band Antenna 80-40-20-15-10m - A multiband antenna that can work from 80 to 10 meters in this illustrated docuemnt by G8ODE
[ Hits: 2731 | Votes: 4 | Rating: 8.75 ]
OH2EC Antenna - A trapped dipole antenna based on the orignal W3DZZ antenna design resonating on 80 40 20 15 10 meters
[ Hits: 1502 | Votes: 5 | Rating: 8.2 ]

Fun and Games with the Spiderbeam 18 Meter Pole - A portable operation experience with a SpiderBeam pole during a contest, testing wire antennas, like dipole and delta loops configurations on 20 40 and 80 meters band.
[ Hits: 313 | Votes: 1 | Rating: 10 ]