hf online

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hf online

36 links

Antennas : Antenna Calculators
  • The Antenna Torque Calculator - This unique online tool helps Ham Radio operators to choose the right rotator for medium and large HF antenna systems. The algorithm implemented in this calculator is the result of 40 years of experience in the HF Antenna sector. Given the Wind Speed, the total antenna square area, and the boom length, it will return the calculated torque value.
    [ Hits: 178 | Votes: 1 | Rating: 1 ]
  • Online Yagi Antenna Calculator - HF Beam Calculator for Amateur Radio and CB Communications
    [ Hits: 545 | Votes: 16 | Rating: 5.5 ]
Antennas : Multiband
  • Short Multiband Dipole Array - A multiband shortened fan dipole. This page offers and online calculator that can be really useful if you plan to homebrew a multiband dipole for low HF bands and you don't have all needed space for the full lenght. It combines multiband dipole with loading coild for selected bands.
    [ Hits: 229 | Votes: 0 | Rating: 0 ]
Antennas : Satellite
  • EggBeater Antenna for VHF UHF - This antenna was conceived mainly for high-speed digital transmission via satellite. The antenna is made of two full waves loops , mounted at right angles to each other. Then coupled together, 90 degrees out of phase over a horizontal circular reflector. With this configuration the antenna is omni directional and circularly polarized.
    [ Hits: 226 | Votes: 0 | Rating: 0 ]
  • The VHF UHF Eggbeater Antenna Revisited - A new, simple way to build the Eggbeater Antenna. This document introduces a new, simpler way to build the Eggbeater antenna. It also introduces a technically proper way to construct the Eggbeater antenna in order to achieve the best result.
    [ Hits: 523 | Votes: 4 | Rating: 6.5 ]
DX Resources : DX Maps
  • HF DXView Propagation Map - This map shows real-time radio propagation from stations operating on 11 bands between 1.8 and 54 MHz in the amateur radio service. The display shows world-wide activity from the last 15 minutes and is automatically updated about every minute. Data for the map is gathered from several online sources: WSPRnet, Reverse Beacon Network (CW, FT4, FT8), PskReporter, and DX Cluster.
    [ Hits: 299 | Votes: 5 | Rating: 7.6 ]
DX Resources : DX Peditions : 2019 DXpeditions Ham Radio : Clubs : North America : USA : Utah
  • Bridgerland Amateur Radio Club - We are a group of amateur radio operators located in Northern Utah who enjoy exploring many aspects of the hobby from HF to VHF and beyond. We are active in many public service events, Field Day, APRS, packet, Winlink, contesting and more
    [ Hits: 82 | Votes: 3 | Rating: 10 ]
Internet and Radio : WebSDR
  • WEB SDR - ROME - Listen to the online web sdr in Rome Italy. A kiwisdr project using a vertical antenna and dipoles for HF bands.
    [ Hits: 647 | Votes: 4 | Rating: 8.75 ]
  • WebSDR Roma2 Online Radio - Online websdr receiver based in Rome Italy provides a nice user web interface and receiver most of the amateur radio HF bands
    [ Hits: 385 | Votes: 2 | Rating: 4.5 ]
  • SR4DON Web Radio Receiver - OpenWebRX online radio receiver from Olsztyn Poland 10-15 meters bands, 50 MHz VHF UHF bands.
    [ Hits: 183 | Votes: 1 | Rating: 10 ]
  • DK0TE KiwiSDR Germany - Online internet HF LW MF web receiver based in Baden-Wuerttemberg cooperative state university Ravensburg Campus Friedrichshafen running a T2FD antennan under roof.
    [ Hits: 260 | Votes: 2 | Rating: 10 ]
  • Northern Utah WebSDR USA - This online WebSDR is located near Corinne, Utah, has coverage on all U.S. amateur HF, MF and LF bands, 2 meters, the bottom 1 MHz of 6 meters, and several shortwave broadcast bands.
    [ Hits: 502 | Votes: 3 | Rating: 10 ]
Propagation : Propagation Forecast
  • Band Conditions - Current HF band conditions online report and graphs. This page provides band condition information to CW and SSB Contesters. It can also be of benefit to other Radio Amateurs to determine band condtions for Nets and casual QSO
    [ Hits: 3518 | Votes: 22 | Rating: 7.9 ]
  • HF communication prediction tools - Online HF Communication prediction system provided by the Australian Governament Buerau of Metereology allow to predict usable frequency rage for radiocommunications between two stations allowing to specify frequency and date range. This tool allow calculation with different methods and algorithms
    [ Hits: 168 | Votes: 0 | Rating: 0 ]
Radio Equipment : HF YAGI Antennas : Hy-Gain TH3JR
  • Hy-Gain TH3jr Beam Manual online - Hy-Gain TH3jr Tri-band HF 3 Element Beam Covers 10, 15 and 20 Meters assembly instruction manual
    [ Hits: 179 | Votes: 2 | Rating: 5 ]

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