log antenna

350 links - and 2 categories

5 element Yagi antenna for 10 meters band - This 10 meter antenna is right out of the ARRL Antenna Book. There are 5 elements on a 24 feet boom and it performs well from 28.0 to 28.9 MHz.
[ Hits: 194 | Votes: 2 | Rating: 6 ]

Top Band on a Vertical Yagi - 160 Meters on the 3-element 80 Meter Vertical Yagi antenna
[ Hits: 155 | Votes: 0 | Rating: 0 ]

35 Element Yagi Antenna for 23cm - Antennas for the 1296 MHz based on the construction plans of some Yagis 35 elements by DL6WU, F9FT, DJ9YW. These antennas features a boom of about 3 m and gives a gain of about 17.8 dBd
[ Hits: 210 | Votes: 1 | Rating: 7 ]
Log Periodic Antenna for ATV - Log periodic Antenna for 23, 13 and 9 cm bands. The LPA was built according to a design by DC8CE and is used for amateur radio television
[ Hits: 98 | Votes: 0 | Rating: 0 ]

Building a 40m Delta Loop Antenna - An experimento of a 40 meter delta loop antenna both in horizontal and vertical polarization and several elevation angles with interesting notes about the effect of the radial field under the antenna.
[ Hits: 292 | Votes: 4 | Rating: 8.25 ]

50 MHz CLC antenna - A small antenna for 50 MHz made with copper cable loading coils
[ Hits: 249 | Votes: 0 | Rating: 0 ]
6 meter portable antenna - Bring the six meters with you during your hoilidays. This article features a portable moxon antenna for 50 MHz used for sota portable operatios
[ Hits: 150 | Votes: 1 | Rating: 10 ]
Six meter Hentenna - An Hentenna project for the six meters band. The standard size of standard hentenna is width 1/6 wavelength x height 1/2. The antenna build in this project is a full wavelenght antenna for the 50 MHz providing a 6.8 dbi gain.
[ Hits: 224 | Votes: 1 | Rating: 9 ]

Home Built 6M J-Pole Antenna - This article provides details on building a 6 Meter J-Pole antenna using PVC pipe for an enclosure.
[ Hits: 168 | Votes: 0 | Rating: 0 ]

Lightweight 6 Meter Moxon - This article is about a homebrew 6 meter lightweight Moxon antenna. Article includes a full part list, instruction to assemble the parts and pictures.
[ Hits: 230 | Votes: 0 | Rating: 0 ]

Cross-Yagi 10el Antenna for 70cm - 10 Elements Cross-Yagi Antenna for 433 MHz. The base of the 10el antenna is the recalculated RA6FOO antenna.Circular polarization is realized - by a phasing quarter-wave line, matching of horizontal and vertical polarization antennas
[ Hits: 176 | Votes: 6 | Rating: 8.83 ]
70 cm Helix Antenna - Helix antenna 432/435 MHz 14 turns. This 50 ohm impedance antenna allows, when fed with 25/50W of SSB RF, to join the orbiting satellites like AO-40 and AO-10 very easily
[ Hits: 254 | Votes: 2 | Rating: 10 ]

Build your own HF balun - A balun is a MUST for dipoles or similar antennas when they are feed with coaxial cable. From the RF point of view, the shield can be modeled as two conductors, the internal shield (the real shield, this is, ground) and the external shield, who is really far to be ground. In this way, your dipole has 3 arms, the two from the dipole and the coaxial cable shield (external face)
[ Hits: 248 | Votes: 1 | Rating: 10 ]

Reversible RG6 Beverage Antenna - A project about reversible unidirectional Beverage antennas plus a remote switching system conveniently controlled by the operator
[ Hits: 185 | Votes: 3 | Rating: 7 ]

Moxon Beam for 2m - A home made, dirty and quick moxon antenna for 144 MHz made with PVC pipes.
[ Hits: 195 | Votes: 1 | Rating: 9 ]

How to install a Mini Whip antenna - Notes on how to properly install a Mini Whip receiving antenna in an noisy urban environment.
[ Hits: 362 | Votes: 3 | Rating: 6.67 ]

Cushcraft R7000 Prob/Repair - Repairing a Cushcraft R7000 antenna featuring several problems, mostly concerning coils and the insulating parts of the antenna.
[ Hits: 209 | Votes: 1 | Rating: 10 ]

Understanding Antenna Polarization - What is antenna polarization, and why does it matter. Horizontal versus Vertical versus Circular polarization. Undestanding how antennas perform better with different polarizations.
[ Hits: 169 | Votes: 1 | Rating: 2 ]

Building a VHF Contest Station - Building an amateur station for competitive radiosport involves a number of critical steps, regardless of the band or bands you focus on. These include, but are certainly not limited to: Station layout, Equipment interconnection and switching, Inter-station interference, Antenna selection. Radio interface with the logging program, CW and voice keyer integration, Rotator control
[ Hits: 336 | Votes: 1 | Rating: 4 ]

Websdr Polska - RSP1A receiver with LoG (Loop On Ground) antenna in quiet QTH - southeastern Poland. Very low QRM!
[ Hits: 91 | Votes: 2 | Rating: 2.5 ]