Search results
Query: double x antenna
Links: 79 | Categories: 1
Categories
-
I built a homebrew 75 meter Double Extended Zepp Antenna, And I needed a 4:1 Balun So I decided to Homebrew the Balun also. Here is how I did it!
-
A modified 20 meter double zepp wire Operating Bands: 40 thru 10 meters (with tuner), basic construction and performance information.
-
From WH2T Dr Ace's Double Bazooka Coaxial Dipole
-
-
The page describes a Double-L antenna for 80 and 160 meters bands, designed by Don Toman, K2KQ, with a simple, effective, and ground system-free design. The antenna is a center-fed half-wave vertical with horizontal top and bottom sections, providing good performance without the need for an elaborate ground system.
-
This is a deviation from the wonderful antenna the Double Bazooka. The Vertical Bazooka, is made entirely from RG-8U coaxial cable.
-
Build a double bazooka coaxial dipole, broad-band dipole antenna
-
160 meter linear loaded voltage fed T antenna
-
An easy to build, compact antenna for wireless lan applications that offers a reasonable amount gain.
-
This double extended Zepp provides 3 db gain over a dipole on the band it is designed for. Each side or leg is about 5/8 wavelength long.
-
A dual-bander for 80M and 40m. An Extended Double Zepp (EDZ) is a 5/4 wavelength center-fed dipole. This article will introduce the Half-Extended Double Zepp (HEDZ) which has characteristics that a lot of amateur radio operators should find quite interesting
-
-
A double bazooka antenna plan for the cw portion of the 40 meter band
-
Demonstrates the construction and on-air performance of the _NB6Zep_ antenna, a modified 20-meter Extended Double Zepp design optimized for multi-band operation from 40 through 10 meters. The resource covers basic design principles, including dimensions of 66 feet horizontal and 5 feet vertical elements, and specifies open ladder line or TV twin lead for the transmission line. It details material selection for low-cost wire antenna construction, such as 18 AWG wire for the legs and ceramic or plastic insulators, along with practical tips for soldering connections and insulating against moisture. The author, NB6Z, shares insights from extensive _EZNEC_ modeling to optimize the antenna's total length for a 40-meter half-wave dipole footprint and feed line length for direct tuner connection. The article presents field results, including successful _PSK31_ contacts from Oregon to the East Coast on 40 and 30 meters with 50 watts, even at a low height of 6 feet. It provides detailed performance characteristics for each band, noting the _NB6Zep_'s highest gain (over 3 dB) and sharp, medium-angle lobes on 20 meters, which yielded strong DX reports to locations like Korea, Japan, and Argentina. For 17 and 15 meters, it describes a butterfly-like pattern with broad lobes, while 12 and 10 meters exhibit narrow, directional lobes in an "X" configuration. The author also shares personal experiences operating successfully for over a decade in an antenna-restricted environment using the NB6Zep and other stealth wire antennas.
-
This improved multiband trap dipole introduces a new trap design and a change in trap location. The antenna features double-coaxial-cable-wound traps having lower reactance and a higher quality factor (Q) than earlier coax-cable traps by W8NX
-
The Double Bazooka Dipole is a very efficient single band antenna which is very quite, and does not require the use of a balun. This antenna consists of coax (RG58) or other 50 ohm type with the shield split at the center and the feedline attached to the open ends
-
Broadband dipole antenna, needs an antenna tuner but can reach 3db gain over dipole
-
The page provides detailed instructions on how to build a double bazooka antenna for the 40 meters band. It includes information on materials needed, measurements, and assembly steps. The antenna can be configured as an extended dipole or an inverted V, offering low noise, wide bandwidth, and a 1:1 standing wave ratio. The content also offers calculations for other bands and includes photos of the antenna fabrication process.
-
Notes on bazooka antennas by Katunk: a portable field antenna, sometimes called the double bazooka or a coaxial antenna.
-
G8OFZ multi-band antenna for 80-10m, this antenna appears to be a derivative of the Doublet and the Classic G5RV
-
Base and mobile antennas,custom ball mounts, single, double, triple coil antennas, flat coils.
-
Doublet multiband antenna for 80 to 10 meters band by
-
An easy to build antenna for ground reception of NOAA weather or amateur satellite signals. Double cross antenna by Gerald Martes
-
The Double Bazooka Dipole is a half wave dipole with an attempt at compensation of the reactance change that occurs around resonance for a half wave dipole.
-
Discussion on Elmers Forum at eHam.net about setting up a bazooka antenna in an attic
-
-
A simple antenna that can be erected very fast, only need one center support, and do not take up much storage room. Works from 40 to 10 meters band
-
The 75 meter double bazooka antenna for 80 meters band by K9HSS
-
D3+ High Performance Antennas for Field Day. This article describes versatile broadband wire antennas. These antennas will double your effective radiated power over a dipole, will be easy and inexpensive to build and install, and will be simple to match.
-
An easy to build, compact antenna for wireless lan applications that offers a reasonable amount gain.
-
A project for a multiband HF windom antenna by VE2CV and VE3KLO
-
-
A page dedicated to the doble bazooka antenna with dimensions for all HF bands
-
Cheap and EZ to build Bi-Directional VHF & HF antennas with gain
-
One popular rumor or thought is that antenna gain doubles every time we double the number of elements
-
-
-
-
-
-
Double Bazooka Antenna, a simple coax based and broad band antenna you can easily build
-
A Slinky-based doublet or loaded vertical QRP antenna tested for 40 meters band
-
Optimizing a G5RV or ZS6BKW multiband wire antenna for HF operation often involves addressing common SWR issues and understanding feedline characteristics. This resource chronicles the construction and performance evaluation of a G5RV, initially built for 80m, 40m, 15m, and 10m bands, by a newly licensed Foundation operator. The author details the selection of materials, including 3.5 mm stainless steel wire for the doublet arms and enameled copper wire for the open-wire feeder, and the initial decision to omit a balun based on common online information. The narrative highlights the initial disappointing performance, characterized by high receive noise and poor signal reports on 80 meters, despite the transceiver's internal ATU achieving a 1:1 match. This led to experimentation with a coax current balun and further research into G5RV myths, such as SWR claims and the necessity of a balun. The author then describes modifying the antenna to the ZS6BKW configuration, which involves specific changes to the doublet and feedline lengths, and integrating a 1:1 current balun wound on a ferrite toroid. The modifications resulted in improved reception and transmit performance across the bands.
-
The 1960s mobile/base antenna returns, double G Whip for base use.
-
probably the most simple and inexpensive antenna you could make for 23cm.
-
-
A 5/8 wave antenna, can be fed with ladder line from the center insulator to tuner.
-
A page in french dedicated to the double bazooka antenna, with a short history of this antenna model and main characteristics including a comparison versus the dipole antenna and formulas to determine elements size.
-
Here is a review of the 40 and 80 meter band Double Bazooka antennas as used on the HF shortwave bands.
-
Building the double size G5RV antenna, part list, assembly part, dimensions and assembly instruction in a pdf document