feed

360 links - and 3 categories

Linear Loaded 40m Dipole - A simple dipole for 40m band feeded with 450-Ohm openwire feedline includes MMANA Gal files to download
[ Hits: 485 | Votes: 1 | Rating: 5 ]

Build your own HF balun - A balun is a MUST for dipoles or similar antennas when they are feed with coaxial cables. Many hams connect the center conductor of the coaxial cable to one side of the dipole, and the shield to the other. Wrong!
[ Hits: 1639 | Votes: 5 | Rating: 5 ]

Feed line Dipole for 2 Meters - Building a Resonant Feed line Dipole for 2 Meters
[ Hits: 1063 | Votes: 1 | Rating: 10 ]
10 15 20m Open Sleeve Dipole - Based on a simple project based on a 2 elements Yagi for 20m band, and then becomed a triband yagi with a open-sleeve feed system
[ Hits: 786 | Votes: 3 | Rating: 3 ]
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 ]
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 ]

Resonant Feedline Dipole - Experiences with the end-fed dipole based on the concepts presented by J. Taylor in an article titled RFD-1 and RFD-2: Resonant Feed-Line Dipoles in QST. August 1991.
[ Hits: 736 | Votes: 1 | Rating: 3 ]

Broadcast Antennas on Buildings - When a broadcast antenna is to be placed on top of a building, there are special problems of feeding and grounding. The radiator is usually electrically short, that is, much less than one-quarter wavelength high.
[ Hits: 358 | Votes: 2 | Rating: 10 ]

The Copper J pole Antenna - The copper J-Pole antenna soldered in a couple of hours with an interesting method to setup the feeding point
[ Hits: 677 | Votes: 2 | Rating: 5 ]

The $4 special antenna - A multiband wire antenna with a twinlead feedline that can be easily tuned in several bands, witha 33 ft per leg you can have a 40 to 10 meters band coverage
[ Hits: 2268 | Votes: 4 | Rating: 7.25 ]

OCF Dipole - This is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. It is a dipole fed off center with a 4:1 current balun at the offset feedpoint. The antenna shown covers 80, 40, 20 and 10 meters with 15 meters and WARC bands
[ Hits: 2559 | Votes: 7 | Rating: 9.43 ]

All About Antennas - A free five part series on antennas that covers many aspects of antennas, from radio wave propagation, to feed lines, type of antennas, connectors, adaptors and antenna switches by Bob Grove, publisher of Monitoring Times
[ Hits: 1180 | Votes: 3 | Rating: 7.5 ]

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 ]

VHF Yagi from Old TV Antenna - 6m/2m/70cm Yagi Antenna Built from Old TV Antenna This turned out to be a great little antenna. It works the 6 meter, 2 meter and 70 centimeter bands. You can use one common feedpoint or two seperate feedpoints depending on how you would like to connect this antenna to your transceiver.
[ Hits: 731 | Votes: 2 | Rating: 10 ]

KI4FVI 146.715Mhz Repeater - Live Audio Feed of the KI4FVI repeater in henry county Georgia
[ Hits: 445 | Votes: 2 | Rating: 5.5 ]
VK3RGU live feed - VK3RGU 438.375 MHz Gippsland Repeater in Australia
[ Hits: 326 | Votes: 0 | Rating: 0 ]

Oregon Live Police Scanner - Listen to online police scanner from Douglas County in Oregon USA
[ Hits: 434 | Votes: 2 | Rating: 1 ]
Prince William County East - West Fire and Police - Live Audio Feed Virginia
[ Hits: 263 | Votes: 1 | Rating: 1 ]

Virtual Radar Server - Virtual Radar Server is a free windows decoder of ADS-B signals received by several radio receivers and support even networked data feed. The Server publish a Google Maps-based display of aircraft positions and flight list
[ Hits: 2388 | Votes: 6 | Rating: 5.33 ]

Yes, all my Coax Cables are 75 Ohms - CO2KK exposes some myths about using 75-ohm feedline with 50-ohm rigs and show how to build a cotanget transformer
[ Hits: 1308 | Votes: 3 | Rating: 8.67 ]