lfa antenna

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LFA Antenna for 40m by YO2MBU - LFA 2 elements Loop Antennafor 40m by YO2MBU
[ Hits: 775 | Votes: 1 | Rating: 7 ]

5 Element LFA Yagi for 6 meters band - A Loop Fed Array Yagi antenna for 50 MHz featuring 11 dBi gain and 23 f/b ratio. In this excellent page the author even includes a detailed drawing in DWG format, with element lenght and spacing measures, in a separa file a full list of material list needed to build this yagi antenna including source and price, the EZnec file for this antenna plan, and a lot of pictures of this LFA Yagi for 50 Mhz. A ten page PDF file containing all infos, is also available to download.
[ Hits: 1179 | Votes: 7 | Rating: 8.57 ]
LFA Yagi Antenna for 6 meter band - This antenna is reported as being lower noise than conventional yagis and had a very low SWR for 500 KHz.
[ Hits: 200 | Votes: 3 | Rating: 7.33 ]
3 Elements Yagi LFA for 50 MHz - A short 3 element LFA Yagi for 50MHz with a 1.94M boom. This antenna has been designed in order to minimise the upward and downward lobes typically seen the the EL plane on Yagi antennas.
[ Hits: 226 | Votes: 2 | Rating: 8 ]
6el LFA Yagi for 50MHz - This six element LFA Yagi for six meters has a 1.5 inch square boom with a 1.5 inch secondary boom beneath the first. This ensures the 7.3 metre long boom will not sag and will not require any guying. This antenna has 12.3 dBi Gain and just over 23dB F/B.
[ Hits: 117 | Votes: 2 | Rating: 4 ]

Build An LF Antenna Analyzer - A Portable Low Frequency Antenna Analyzer, For those of us who like to play with antennas on the ham bands, one of the handiest tools to have around the shack is an "antenna analyzer". These gadgets combine a signal generator and standing-wave ratio (SWR) sensor in a small battery-powered unit.
[ Hits: 4567 | Votes: 2 | Rating: 5 ]

Antenna Safety - Elevated Work Platforms - Accessing antennas at great height poses many potential safety hazards. Essentially, climbing ladders or scaling towers, regardless of whether or not a commercial safety harness is fitted, is risky business indeed particularly for those hobbyists in their latter years or not as physically capable as others.
[ Hits: 289 | Votes: 0 | Rating: 0 ]

Gulf Alpha Communication Antennas - VHF, UHF and Satellite Antennas for Government, Commercial and Amateur Radio Made in Nebraska USA
[ Hits: 894 | Votes: 0 | Rating: 0 ]

Moonraker 4 Antenna manual - English manual of the AV-140Moonraker 4 antenna
[ Hits: 3185 | Votes: 20 | Rating: 6.16 ]

Antenna Rotator comparison table - Antenna rotators compared. Hygain, Yaesu, Alfaspid, Emoto, M2 and BigBoy rotators compared in an easy to read table provided by Alfa Radio Ltd
[ Hits: 2619 | Votes: 3 | Rating: 7.67 ]

DXView ^pop - A free application that displays location information determined from a callsign, displays translations of common "QSO words and phrases" in the languages used in the callsign's DXCC entity, displays beam headings and SpotCollector DX Spots on a world map, displays country maps, and provides point-and-click control of antenna rotators from AlfaSpid, ARSWIN, Heath, Hygain, M2, Prosistel, SARTek, TIC, Trackbox, and Yaesu
[ Hits: 28596 | Votes: 602 | Rating: 7.39 ]