dipole

604 links - and 10 categories

Antennas for 160m - The best results work when you have an antenna with a large vertical component. It is difficult to get a horizontal antenna (dipole) high enough to be an effective antenna on 160. However, there are several easy things you can do with your present antenna to initially get on the best amateur radio band
[ Hits: 1124 | Votes: 0 | Rating: 0 ]

A centre-fed co-axial dipole for 4-m - This design has the following advantages low-cost components, Easy to set-up - nothing to adjust, no metalwork required, and only four soldered joints!
[ Hits: 554 | Votes: 1 | Rating: 10 ]

Amateur Dipole Antenna Calculator - This calculator is designed to give the horizontal length of a particular dipole including Tees, antenna, or one side of it, for the frequency chosen. Enter the desired frequency and select the desired calculation from the drop box
[ Hits: 1079 | Votes: 9 | Rating: 7.45 ]

Antenna Theory : Baluns - This article describe the principles of baluns when referred to devices used to balance unbalanced systems, like a coax cable and a dipole antenna
[ Hits: 706 | Votes: 2 | Rating: 9 ]

Vertical Dipole Array - A simple and awesome wire monoband antenna, very usefull for portable and dxpeditions usage, consist of two elements, a driver and the reflector. This endfed halfwave gives a very low take off angle and is very suited for chasing DX.
[ Hits: 1255 | Votes: 2 | Rating: 6.5 ]
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 ]
Bent Dipoles reference website - Antenna modeling discussions about What happens if... a dipole is bent horizontally, laterally, vertically. Zig-zag, meander, catenary curve. Effect of sag, elevation, radials. OCF off-center feed, harmonics. Includes 4NEC2 antenna models for each study.
[ Hits: 710 | Votes: 0 | Rating: 0 ]
A 10-6-4 three band dipole antenna - A home made dipole antenna for 10m, 6m, 4m bands made with two sections of 450 and 300 Ohm ladder lines, cut to achieve acceptable SWRs on all bands
[ Hits: 1020 | Votes: 5 | Rating: 8.2 ]
QRO No-Tuner Multiband Dipole - Construction details of a multiband dipole that can can operate at high power levels, and match its 50-ohm coax feedline without a tuner
[ Hits: 1508 | Votes: 2 | Rating: 4.5 ]
A simple 20-40 dipole - A simple to build full length 20/40 dipole antenna to be used in inverted vee configuration
[ Hits: 992 | Votes: 3 | Rating: 5.67 ]

Overview on some SOTA portable antennas - A review of some portable antennas for SOTA operations, including linked dipoles, end-fed, verticals
[ Hits: 686 | Votes: 1 | Rating: 4 ]
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 ]
A lightweight dipole for 2 m - A simple portable antenna for SOTA VHF is described in this article dedicated to portable operations
[ Hits: 499 | Votes: 0 | Rating: 0 ]

The Gamma Match - The gamma match was originally invented as a means of feeding vertical monopole antennas for medium wave broadcasts, which were earthed at the base for lightning protection- Hams are more likely to use a gamma match to feed a dipole or loop element, but the basic theory is easier to understand for the case of a quarter wave monopole.
[ Hits: 957 | Votes: 2 | Rating: 4.5 ]

W3DZZ - a classic dipole heavily modified, - An easy to build multiband trapped dipole that can work well on short low bands for skip contacts
[ Hits: 2329 | Votes: 9 | Rating: 7.56 ]
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 ]

Basic Wire Antennas Part I - A presentation of popular wire antenna models like Dipoles, half size, full size, doble zepp, ocf dipoles, G5RV
[ Hits: 1652 | Votes: 0 | Rating: 0 ]

Buddipole vertical on 40m - A report on working a CQWW SSB on 40m with a vertical buddipole antenna
[ Hits: 614 | Votes: 1 | Rating: 1 ]
Buddipole Deluxe Review - A review of the Buddipole Deluxe Antenna portable HF VHF ham radio antenna
[ Hits: 684 | Votes: 1 | Rating: 4 ]