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284 links - and 5 categories

Antennas : 160M
  • Double Extended Zepp Antenna - 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.
    [ Hits: 25336 | Votes: 27 | Rating: 6.29 ]
Antennas : Shortwave
  • Longwire antenna basics  pop - basic notes on building longwire antennas for medium waves
    [ Hits: 50339 | Votes: 39 | Rating: 6.06 ]
Antennas : Theory
  • Antennas : theory and designs - Thierry LOMBRY, ON4SKY, develops in several long articles all you need to know about antennas, their design and performance, for both amateurs and SWL
    [ Hits: 9088 | Votes: 11 | Rating: 3.27 ]
Antennas : Theory : Antenna Gain
  • The gain of aerials: the myths explained - In the long history of beam aerials there has persistently existed the claim that certain types of aerials perform better than yagis.
    [ Hits: 1491 | Votes: 1 | Rating: 10 ]
DX Resources : Clusters
  • GB7MBC DXCluster - Offer a web and telnet cluster access along to forum and dx cluster stats
    [ Hits: 543 | Votes: 4 | Rating: 5.75 ]
Ham Radio : Clubs : North America : USA : California
  • W6BHZ - Cal Poly Amateur Radio Club - The California Polytechnic State University Amateur (Ham) Radio Club (CPARC) has a long tradition of communications service on campus and in the community of San Luis Obispo. The club was founded in 1947, making the Cal Poly Amateur Radio Club the second oldest club on campus
    [ Hits: 850 | Votes: 3 | Rating: 5.67 ]
Ham Radio : Clubs : North America : USA : Indiana Ham Radio : Clubs : North America : USA : New York
  • LIMARC - The Official Web Site of the Long Island Mobile Amatuer Radio Club. The 4th largest ham radio club in the USA! We have 3 hamfests a year and repeaters on 2M, 70 CM, 220 Mhz and 1.2 Gig.
    [ Hits: 1263 | Votes: 5 | Rating: 6.2 ]
Manufacturers : Antennas : HF : G5RV
  • Ni4L ANTENNAS & ELECTRONICS - Ham radio antennas and electronics, specialized in 1/2 wave dipole, OCF dipole, windom, full wave loop, end fed, inverted L, portable end fed antenna, long wire, SWL antenna, fan dipole, multiband dipole, G5RV and military antennas.
    [ Hits: 1381 | Votes: 6 | Rating: 10 ]
Operating Aids : Beginner's Guides
  • How to select an amplifier - Thierry LOMBRY, ON4SKY, develops in three long articles all you need to know about amplification, and how to seletc an HF and a solid-state amplifier, with pictures.
    [ Hits: 5305 | Votes: 5 | Rating: 6.4 ]
Operating Aids : History
  • The History of amateur radio from 900BC to date - Thierry LOMBRY, ON4SKY, develops in depth and with original pictures the long history of amateur radio all through the world from 900 BC to date.
    [ Hits: 586 | Votes: 1 | Rating: 10 ]
Operating Modes : Internet Linking : EchoLink
  • W2YMM Echolink Homepage - Information about our local Echolink Node #1224, on Long Island NY
    [ Hits: 1024 | Votes: 0 | Rating: 0 ]
Operating Modes : Satellites
  • Satellites list - Long and detaliled list of AMSAT and other satellites with pictures, drawings and satellite informations
    [ Hits: 693 | Votes: 2 | Rating: 5.5 ]
Propagation : Aurora
  • Basics of Propagation by ON4SKY - Thierry LOMBRY, ON4SKY, develops in several long articles the bascis of propagation. His website includes also a French section dealing with auroras.
    [ Hits: 1179 | Votes: 1 | Rating: 10 ]
Radio Scanning : RailRoad
  • Railroad Radio - Information about railroad radio channels and frequencies is provided along with laws relating to using scanners as well as tips and suggestions for programing and using radio scanners.
    [ Hits: 3675 | Votes: 2 | Rating: 4.5 ]
Radio Scanning : Regional : USA
  • ScanNewBedford.com - Welcome to scannewbedford.com. This site was built for people who would like to hear a live broadcast of New Bedford Massachusetts public services. There are also a few frequencies from other local towns such as Dartmouth, and Fairhaven being broadcasted on our live audio feed. The web site is free for everyone to use and pass along to another friend. Thank you and enjoy the Scan New Bedford Live Scanner Audio Broadcast of New Bedford`s Police, Fire, and EMS.
    [ Hits: 1599 | Votes: 11 | Rating: 6.45 ]
Software : Grid Bearing and Maps
  • Azimuth - The AZIMUTH program plots a world map in either azimuth (beam heading) or Mercator projections. If you specify your home location in latitude and longitude, the azimuth projection is centred on your location. The Azimuth map program can display Maidenhead grids - this is useful for 6m, 2m, and UHF DX communication display. Various features of the map are: Azimuth or Mercator projections , Maidenhead grid display, Simple map zooming, Print maps with adequate resolution up to one meter sized map
    [ Hits: 6049 | Votes: 2 | Rating: 8.5 ]
  • AZMap - Azimuthal maps generator - AZMap is a freeware Windows program for the Windows PC which will generate, display, and print an Azimuthal-Equidistance (A-E) map of the world, centered at any point on the surface of the earth (except very near the poles). The A-E map is also known as a Great Circle map since straight lines from the center point to any other point always fall along a great circle path and represent the shortest distance between the center and that point
    [ Hits: 10005 | Votes: 46 | Rating: 5.37 ]
Software : Hellschreiber
  • Spectrum Lab  pop - DL4YHF's Audio Spectrum Analyser Spectrum Lab or Speclab started as a simple FFT program running under DOS a long time ago, but it is now a specialized audio analyzer, filter, frequency converter, hum filter, data logger and more. Can be used for MTHELL QRSS, DFCW, PSK, MSK, Castle
    [ Hits: 45878 | Votes: 53 | Rating: 7.08 ]
Software : Spectrum analyzers
  • Axis Spectrum Analyzer - Axis Spectrum Analyzer allows you to record audio along with sincronized 31 band spectrum analyzer readings from any audio source to be inputed into Macromedia Flash movies in an easy to integrate way. The software can also be used to display real-time audio with customized visuals on video devices such as projectors, tvs,etc.
    [ Hits: 11117 | Votes: 5 | Rating: 4.2 ]

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