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Antennas : Baluns
OH7SV Windom baluns
- Windom baluns for kilowatt range made with two ferrite toroidal cores amidon ft-140-61 and another schema with two ferrite rods
Switchable Balun
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- A 1:1 to 4:1 switchable balun by N1LO
Simple HF Baluns for 50/75 ohm coax
- Show diagrams, winding methods and tables of some 1:1 and 4:1 baluns for 1.8 - 30 MHz suitable for use up to 200W (400W peak) on systems using 50 or 75 ohm coaxial cable input where SWR should not exceed 1.6:1.
Low Power 4:1 Balun
- Build a Low Power 4:1 Balun , by Charles Greene, W1CG with full-color, full-resolution graphics from the pages of QRP Homebrewer
A 4:1 Balun
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- A single-core 4:1 current balun of improved performance by Chris Trask N7ZWY PDF file
4:1 balun for 160 to 10 meters
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- Articke By Clay Wynn
4:1 balun project
- CVARC 4:1 Balun Project Kit by AE6YC
4:1 coax balun design
- Online calculator for a 4 to 1 coax cable balun
Guanella 4:1 balun
- This article reviews the proposition that a 4:1 current balun in the style of Guanella can be constructed with both pairs of windings sharing a common magnetic circuit.
4:1 Dual ferrite bead balun
- The Dual-Ferrite-Bead 4:1 HF Balun, some preliminary measurements
The Dual-Ferrite-Bead 4:1 HF Balun
- A pdf document about the dual ferrite bead 4:1 balun, some preliminary measurements
Feeding an End-Fed Antenna
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- End-Fed antennas are NOT balanced systems; but neither are verticals, ground planes, discones, windoms, zepps, Marconis, half-slopers, et al. Additionally, the low-impedance antenna port of your transmitter/receiver is not balanced.
The Helical Windom Antenna
- A marriage of the windom and slinky antennas, experimental home brew antenna by NC4TC
What make the carolina windom so good
- The off-center fed CAROLINA WINDOM provides outstanding performance on all bands. This includes all the WARC bands, 30, 17, and 12 meters.
G7FEK Limited space antenna
- A small antenna for all amateur bands, including 80 meters, and in a small garden without the compromise. An ideal replacement for those half size antennas such as the 1/2 size G5RV and Windom 40
Multi band wire antenna
- The off center fed dipole or Windom antenna.
Off Center Loaded dipole by LU1DMA
- An OCF dipole project in spanish
The Carolina windom antenna
- Homebrewina a multiband windom antenna
Off-Center Feed - The Windom Antenna
- The Windom antenna was widely used in the 1930s and is named after the amateur that wrote a comprehensive article about it
Windom Antenna with 4:1 balun
- The Windom is an Off-center wire multiband Antenna. The old version was fed just by a single-wire connected on 1/3 of antenna's overall length or with an open-line feeder (later versions). Here is another model with coaxial feeder, which is compatible with Solid States - 50 Ohm output transceivers .
Windom antenna by PU1LHP
- Project of a windom multiband antenna for 10 to 80 meters in portuguese
The FD4 Windom antenna
- This antenna originated from darc QRV magazine in 1971 should be attributed to DJ2KT, works on 80 40 20 10 meters without ATU, based on the Windom principle.
I7SWX Coax-Fed multiband antenna
- This simple multiband antenna works on all HF bands from 3.5 to 30 MHz, including WARC bands other than 10.1 MHz.
A stealth HF antenna
- A wire antenna matched with a 4:1 balun that can operate with the help of a tuner on all hf bands.
By IW2EVK in italian
Anteny SP1BKS
- Antenna manufacturer from Poland, produce dipole wire antennas, W3DZZ FD4 Windom and long wires, baluns, dealer for toroids and connectors managed by Leszek Mlynarczyk SP1BKS
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