3 meter antenna

354 links - and 1 categories

Make your own 2 metre 5/8 whip antenna - This article is about a home made project of a whip antenna for 2 meters band. Includes lenght of whip for all frequencies from 140 MHz to 151 MHz both in mm and inches
[ Hits: 386 | Votes: 1 | Rating: 5 ]

A 30 Meter Sloping Dipole Antenna - This variation of the basic horizontal, half wavelength flat top dipole has proven to be a simple, effective antenna suitable for both home and portable use.
[ Hits: 456 | Votes: 0 | Rating: 0 ]

Six meter dipole project - Design and build an 6 m dipole antenna from aluminum, tubing, that resembles the active element of a yagi beam antenna.
[ Hits: 900 | Votes: 1 | Rating: 9 ]
Six Meter Antennas Reviewed - In this article the author describes his personal experience on some antennas for 50 MHz he tested on the field, the six meter Dipole, Vertical, Moxon, a 3 element Yagi and an Omniangle antenna.
[ Hits: 138 | Votes: 0 | Rating: 0 ]

The Ugly MacGyver 6 meter J-pole Antenna - Essentially, a J-pole is a 1/2 wave resonant antenna connected to a quarter wave matching stub. The feedline is connected at a point on the matching stub that is at the feedline's characteristic impedance. The result is 3/4 of a wavelength on one side and 1/4 wavelength on the other side.
[ Hits: 202 | Votes: 0 | Rating: 0 ]
Buddipole as a J-Pole for 50 MHz - How to setup and configure the buddipole antenna in the J-Pole mode for the six meter band
[ Hits: 303 | Votes: 0 | Rating: 0 ]
6 Meter Homemade J-Pole Antenna - A homemade j-pole antenna for six meters band, designed to work on local repeaters, and working on the 52-53 MHz. Includes a list of needed materials and detailed description on assembling the copper tubes used to build this antenna.
[ Hits: 254 | Votes: 3 | Rating: 4.67 ]

6 Elements Yagi Antenna on 50 MHz - This is a design based on the QuickYagi 4 software by WA7RAI with some changes for practical reasons. The beam uses 6.5 metres of standard 25mm square boom, 12mm diameter elements without tapers. The actual boom length used is 6.3 metres and all parts are readily available.
[ Hits: 134 | Votes: 2 | Rating: 6 ]

80 Meter Shortened Ground Plain Antenna - This antenna is a vertical loop antenna mounted on a 8 meters high grounded mast with an input impedance of 50 Ohms without a matching device
[ Hits: 446 | Votes: 1 | Rating: 5 ]
Top Loaded Vertical Antenna for 80 Meters Band - Top Loaded Vertical Antenna 3,5 MHz 80m and a 14 MHz Trap for the 20m band. The weight of this portable vertical antenna is less than 1 kg, including the ground network. The weight of the telescopic fiberglass fishing rod is another 1kg. The rod expands from 1.5 meters to 8 meters.
[ Hits: 268 | Votes: 0 | Rating: 0 ]

Magnetic Loop Antenna Calculator Spreadsheet - Excel spreadsheet that help calculating dimensions of a high efficiency magnetic loop antenna for HF bands. Giving in input the loop perimeter, loop diameter and loop conductor will calculate electric characteristics, bandwidth, and efficiency
[ Hits: 1889 | Votes: 4 | Rating: 9.25 ]

Trapped Dipole Antenna for 20-30-40m - An 20 30 40 meters trapped dipole antenna plan for sota and portable operations.
[ Hits: 267 | Votes: 1 | Rating: 10 ]
Multiband Dipole for 40 30 17 m - A portable home made wire dipole antenna that works on 40 30 and 17 meters band.
[ Hits: 312 | Votes: 0 | Rating: 0 ]

HF Multiband Moxon Antenna - A project that describes a build a multiband wire beam antenna. A 3 band single feed moxon antenna for 20,15,10 meters.
[ Hits: 705 | Votes: 13 | Rating: 7.54 ]

Multiband trap dipole - This antenna is a classical antenna working on 7,10,14,18,50 MHz is implemented with three traps for 30, 17 and 6 meters
[ Hits: 271 | Votes: 0 | Rating: 0 ]

Portable NVIS Loop for 80m to 40m - A portable (15.5 foot diameter) NVIS loop for 3.5 to 7.3 MHz. Performs well at high and low takeoff angles, and has smaller footprint than most NVIS antennas.
[ Hits: 366 | Votes: 0 | Rating: 0 ]

The MonoGap Antenna for 30m Reviewed - A review of the 30 meter MonoGap Antenna. This review covers from the unboxing go the Gap product, the assembly of the elements, the test and tuning phase and a performance report during the years
[ Hits: 241 | Votes: 1 | Rating: 10 ]

Hy-Gain TH3jr Beam Manual online - Hy-Gain TH3jr Tri-band HF 3 Element Beam Covers 10, 15 and 20 Meters assembly instruction manual
[ Hits: 180 | Votes: 2 | Rating: 5 ]

Mini Satellite-Antenna Rotator Mk2 - Design and construction of a mini satellite-antenna rotator. It used some small DC motors and a novel combination of 3D magnetometers and accelerometers to provide absolute azimuth and elevation feedback.
[ Hits: 493 | Votes: 3 | Rating: 4 ]

A 3.5MHz Receiver for SSB and CW - Homemade receiver for 80 meters band. The receiver works very well (in fact better than some of its successors), especially the AGC makes listening to 80m QSOs a real pleasure. Sensitivity is not cutting-edge, but on a full-size short-wave antenna it is by fare sensitive enough.
[ Hits: 250 | Votes: 2 | Rating: 6.5 ]