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2928 links - and 30 categories

QM7 7 elements 144 MHz Yagi-Uda Antenna - The QM7 antenna is a simple 7 elements Yagi with 3.70 m boom length for the lower 144 MHz SSB/MGM band, used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 11.35 dBd; i.e. 13.5 dB forward gain over the isotropic radiator, while the F/R is about 12.5 dB
[ Hits: 5361 | Votes: 15 | Rating: 5.27 ]
A portable 2-element VHF yagi ^pop - Build a portable VHF yagi antenna for 2 meters. All you need is two rabbit ear antennas from Radio Shack, two CATV baluns, four feet of 3/4 CPVC pipe with one tee.
[ Hits: 28668 | Votes: 26 | Rating: 7.23 ]

7Mhz Vertical antenna - The secret with this antenna is to install as many radials as you can around the base of the antenna, they can be anything from 1/8 wave or longer.
[ Hits: 24126 | Votes: 15 | Rating: 4.14 ]

Switchable Antenna 80/160 meters band - A switchable antenna for 80/160 meters by IK1ZOY. A new version of a 1/4L 80 m. dipole modified for use in 160 m. band. using it's own coaxial cable feeder to wrap a coil.
[ Hits: 17199 | Votes: 6 | Rating: 5.5 ]

K1FZ Beverage Antenna Transformers - The K1FZ series of beverage antenna transformers are what you need to utilize your beverage antenna to its full potential
[ Hits: 3238 | Votes: 5 | Rating: 8 ]
Beverages: How Short Can They Be - When we think of Beverage antennas, we automatically think of several acres of land and lots of wire!
[ Hits: 3759 | Votes: 4 | Rating: 8.5 ]
Beverage switching box - Sharing beverage antennas with this switch boxes is possible. This article describes a 6-position remote antenna switch for Beverage antennas on 3 bands (160m, 80m, 40m). It allows selecting one of 6 antennas for each band without affecting other receivers. The system uses a control box with a rotary switch and a separate splitting box with bandpass filters for each band.
[ Hits: 5507 | Votes: 3 | Rating: 4.33 ]
The Beverage Antenna Memorandum - Memorandum on the Beverage Wave Antenna for Reception of Frequencies in the 550 - 1500 Kilocycle Band", FCC Report 9.2.1, by Benjamin Wolf and Adolph Andersen
[ Hits: 1251 | Votes: 0 | Rating: 0 ]
Comparison of Beverage antenna - A ranking of receiving antennas based on noise being evenly distributed in all directions. These rankings are most accurate in the frequency range of AM broadcast, 160 or 80 meter bands
[ Hits: 2855 | Votes: 2 | Rating: 6.5 ]

The Lindenblad Antenna: The Ultimate Satellite Omni Directional Aerial - This Antenna project is a bit more complex than other omni antennas for satellite use, but it is much easier and cheaper than a standard tower mounted circular polarized azimuth and elevation rotating beam system.
[ Hits: 442 | Votes: 5 | Rating: 6.8 ]

Wellbrook ALA 1530 active magnetic loop review - Interesting review about active magnetic loop antenna Wellbrook ALA 1530 and 330S by ON4SKY
[ Hits: 3980 | Votes: 4 | Rating: 6.75 ]
Thinking about Ideal Loops - Loop antennae have been used from ELF to UHF since the beginning of radiocommunications. At low frequencies, the main problem for loop antennae is to have enough sensitivity; the antenna being very small respect to the wavelength the collected energy is also small. To increase the output level the loop may be made resonant, so loosing it%u2019s intrinsic aperiodic characteristics.
[ Hits: 2271 | Votes: 6 | Rating: 7.33 ]

Effective HF Mobile Antennas - Effective HF Mobile Antennas Keith WB2VUO, explains difficulties on gaining antennas efficiency on lower bands with mobile antennas.
[ Hits: 7913 | Votes: 4 | Rating: 6.75 ]

Active receiving antennas - An active antenna is sometimes used for receiving purposes in instances where a normal antenna would be impossible to accommodate in a physical sense.
[ Hits: 12627 | Votes: 6 | Rating: 5.5 ]

Roofspace Antennas ^pop - How to build a roofspace antennas and get them to work. Explains how to build an effective antenna in your roof. Very interesting if you don't have possibilities to setup an antenna in your roof.
[ Hits: 46799 | Votes: 19 | Rating: 4.74 ]

7 MHz Vertical antenna ^pop - 7 MHz Vertical antenna for ham radio band of 40 meter text in spanish and english
[ Hits: 34598 | Votes: 98 | Rating: 8.43 ]

How create simple dipoles - How to create a simple but effective half wave dipole, illustrated instrucions on how to build wire antennas
[ Hits: 3339 | Votes: 4 | Rating: 6.5 ]

C.A.T.S, Rotor Doc - Manufacture CATS antenna rotator and digital controls. Service, stock, and provide parts for top quality AMERICAN-MADE antenna rotators from companies such as Alliance, C.A.T.S., CDE/Hy-Gain, and Channel Master, both young and old.
[ Hits: 7478 | Votes: 17 | Rating: 6.47 ]

Digital Smart Antennas DiSA - Digital Smart antenna (DiSA) Automatically Adjusts over a wide band of frequencies.
[ Hits: 926 | Votes: 2 | Rating: 5.5 ]

Getting Started in SW Listening - Excellent and exaustive guide to shortwave listening offered by monitoringtimes, includes operating guides, technical suggestions, buying guieds, antennas implementations and more, all what is needed by shortwave listening beginners.
[ Hits: 5428 | Votes: 19 | Rating: 6.8 ]