design

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design

1021 links - and 5 categories

Antennas : 17M
  • KK5BL How To Build A G5RV Antenna  pop - How to build a G5RV Transmitting antenna Originally posted to the packet bbs system by KC6CFF. The G5RV is an easy-to-build 80-10 dipole requiring no traps. All bands are covered, including 30, 17, and 12. The G5RV has high SWR, by design, on most bands and a tuner is required
    [ Hits: 24349 | Votes: 7 | Rating: 6.15 ]
Antennas : 2M Antennas : 40M : 40 meter Delta Loop Antennas
  • ZZ Wave Net - ZZ Wave Net is a 40 & 80 meter full wave loop designed to fit on a city lot. ZZ Antenna is a folded dipole bent into an inverted V loop
    [ Hits: 9309 | Votes: 9 | Rating: 6.79 ]
Antennas : Delta loop Antennas : G5RV
  • G5RV multi-band antenna - Multi-band centre-fed antenna capable of very efficient operation on all HF bands, specifically designed with dimensions which allow it to be installed in gardens and other open spaces which accommodate a reasonably-straight run of 31.1m (102 ft) for the flat-top standard model.
    [ Hits: 6828 | Votes: 8 | Rating: 7.38 ]
Antennas : J-Pole
  • Plumbers Delight J Pole Antenna Project - This article was reprinted to assist new hams at building their own 2 metre antenna. This design is very rugged and can be built for a few dollars with most of the parts available at your local Home Depot.
    [ Hits: 4905 | Votes: 2 | Rating: 9.00 ]
Antennas : Moxon
  • MOXON Antenna Project - The MOXON antenna can provide radio amateurs with an excellent antenna system that is easy to homebrew and usually does not require any adjustment if made according to the dimensions specified by its designer. A typical MOXON rectangle can be built in a few hours, using X type of spreaders arrangement as discussed on this web site.
    [ Hits: 3969 | Votes: 7 | Rating: 9.14 ]
  • Moxon equation - Designing moxon rectangles by equation and by model L. B. Cebik, W4RNL
    [ Hits: 2143 | Votes: 1 | Rating: 1.00 ]
  • N2YET- Moxon projext - Design that can be mounted on a mast underneath an existing beam.
    [ Hits: 2349 | Votes: 8 | Rating: 10.00 ]
  • W6NL 40m Moxon Yagi - Designed and built by W6NL looks like a loaded yagi this 2 element moxon antenna offer 6dbi
    [ Hits: 4066 | Votes: 9 | Rating: 4.78 ]
Antennas : Portable
  • A Portable Multi-Band Magnetic Loop Antenna  pop - Described here is a simple multi-band magnetic loop antenna designed for 20, 30 and 40 metres, but by changing the overall length of the wire coverage of other bands is feasible
    [ Hits: 33099 | Votes: 9 | Rating: 6.11 ]
Manufacturers : Towers and Accessories
  • ASTER Teleservices - Telecommunication Infrastructure jobs including the Tower and Foundation design
    [ Hits: 993 | Votes: 15 | Rating: 5.73 ]
Software : Antenna analysis
  • ERP Calculator Plus - ERP Calculator is an Amateur Radio software utility designed to perform a side-by-side comparison of two Ham Radio antenna systems. ERP Calculator comes pre-programmed with data files including published data for several popular brands and types of coax cable as well as several popular antenna system brands and models. ERP Calculator displays values of ERP, Antenna Power Gain, Antenna Feed point Power, Antenna System Gain in dB, Antenna Gain in dBd, SWR Attenuation in dB, SWR Power Attenuation, Coax Loss in dB, and Coax Power Loss
    [ Hits: 2794 | Votes: 9 | Rating: 5.11 ]
  • AC6LA MoxGen - MoxGen will show you the dimensions and generate an antenna model file for a 50 ohm Moxon Rectangle antenna, given the design frequency and wire size
    [ Hits: 4420 | Votes: 14 | Rating: 6.71 ]
Software : Pocket PC
  • Big Fat Tail Productions - PocketSat is a full-featured satellite tracking application for PalmOS and PocketPC devices. It is designed to be usable by both experienced satellite trackers as well as novices who are interested in knowing when they can simply look up and see satellites.
    [ Hits: 6492 | Votes: 11 | Rating: 4.55 ]
Technical Reference : Components : Toroids
  • Ferrite information - Ferrite Toroidal Cores, Magnetic Properties of Ferrite Materials, EMI - RFI Suppression Design Considerations, Ferrite Beads, Ferrites for RFI Ferrite Cores for RFI Suppression by CWS ByteMark
    [ Hits: 13223 | Votes: 4 | Rating: 5.00 ]
Technical Reference : HF Radios
  • 80m SSB & CW transceiver - The 80m SSB & CW transceiver design is based on an already proven concept used in ATLAS amateur transistorised transceivers from 70's
    [ Hits: 10299 | Votes: 16 | Rating: 5.19 ]
Technical Reference : Preamplifiers
  • 23cm dual stage preamp - A modification / combination of the DJ9 BV & I5TDJ 144 MHz preamp designs
    [ Hits: 2381 | Votes: 1 | Rating: 10.00 ]
Technical Reference : Radio Frequency Interference
  • Using ferrites for interference suppression - This tutorial is meant to shed some light on the use of ferrites, and also presents some comparative frequency domain measurements both to illustrate some of the points, and to give designers an idea of what they might expect in using and specifying a ferrite component
    [ Hits: 3682 | Votes: 1 | Rating: 8.00 ]
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