hf signal

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hf signal

54 links

Contesting : Clubs
  • Badger Contesters Online - The Badger Contesters is a club of like-minded hams who are interested in VHF/UHF/SHF weak signal communications. Our geographic focus is Wisconsin, however hams in Northern Illinois, Michigan's UP, and Eastern Minnesota are welcome to join us.
    [ Hits: 296 | Votes: 2 | Rating: 9 ]
Ham Radio : Clubs : North America : USA : Massachusetts
  • W1RJA North East Weak Signal Group - Our group is the North East Weak Signal Group. We are an ARRL affiliated regional club dedicated to the interests of "weak signal" work on the bands 50 MHz -
    [ Hits: 785 | Votes: 1 | Rating: 1 ]
Ham Radio : Clubs : North America : USA : Minnesota
  • Northern Lights Radio Society - Organization of Upper Midwest amateur radio operators who are active in weak signal (SSB/CW) work on the VHF, UHF, and Microwave bands
    [ Hits: 398 | Votes: 0 | Rating: 0 ]
Internet and Radio : Sounds
  • DD3DJ Sound Samples - Some sound samples of received signals mainly on VHF-band
    [ Hits: 970 | Votes: 0 | Rating: 0 ]
Manufacturers : Amplifiers
  • LNA Technology - LNA Technology High Performance Low Noise Preamplifiers for Amateur Radio, VHF-UHF weak signal, DX, EME, and commercial applications.
    [ Hits: 2059 | Votes: 4 | Rating: 7 ]
Operating Modes : DSP Operating Modes : Meteors
  • Meteor scatter or meteor burst communications - A summary, overview or tutorial covering the basics of Meteor Scatter or Meteor Burst Communications, a form of radio signal propagation often used at VHF.
    [ Hits: 328 | Votes: 0 | Rating: 0 ]
Operating Modes : Weak Signal
  • A PC as VLF receiver - Using a PC with soundcard as a VLF receiver, how to use your PC as a receiver for narrow-band signals in the VLF radio spectrum by DL4YHF
    [ Hits: 692 | Votes: 1 | Rating: 8 ]
Propagation : Resources
  • Here Comes the Sun - Propagation and Sun - Solar activity can aid or hamper HF propagation beyond line-of-sight range, WA1SVF and N6BV answers to questions about Sun influence on radio signals propagation
    [ Hits: 418 | Votes: 0 | Rating: 0 ]
  • Tropospheric propagation - Article about tropospheric propagation and the way in which radio signals at VHF and above propagate over greater distances than strictly line of sight in the troposphere
    [ Hits: 222 | Votes: 0 | Rating: 0 ]
Radio Equipment : Reviews and Comparisons
  • Best VHF Contest Transceivers - Report on tests done on VHF Radios to understand which are best suited for 144 MHz operation in large signal environments like VHF contests
    [ Hits: 565 | Votes: 5 | Rating: 4.4 ]
Software : Navtex
  • DSCdecoder - DSCdecoder decodes the DSC digital signals from ships and coast stations using the sound card in your PC. You need a suitable MF, HF or VHF band radio receiver tuned to one of the DSC distress and calling channels or to one of the Navtex channels
    [ Hits: 5415 | Votes: 8 | Rating: 5.5 ]
Software : Weak Signal
  • WOLF GUI - GUI for the KK7KA Wolf software, that was originally written as command line interface only. Wolf is a weak signal software
    [ Hits: 443 | Votes: 0 | Rating: 0 ]
Technical Reference : Duplexers
  • A Two Meter Duplexer - How to get a cheap-squeaky clean signal, a 2 meter duplexer designed by Leonard WB3AYW
    [ Hits: 3538 | Votes: 8 | Rating: 5.12 ]
Technical Reference : Software Defined Radio : RTLSDR
  • Opendous - Upconverter - Upconverter MF/HF Converter for Receivers. Converts signals in the MF and HF Bands to signals in the VHF Band. Intended for use in receiver applications with projects like RTL-SDR/SDR#/FunCube Dongle, or to listen to AM radio using an FM receiver.
    [ Hits: 521 | Votes: 1 | Rating: 7 ]
  • LNA4HF - low-noise amplifier for HF reception, amplifies signals 80 to 100 times between 0.15 MHz and 30 MHz. It will let you hear more signals with your RTL-SDR plus Ham-It-Up setup
    [ Hits: 805 | Votes: 6 | Rating: 7.83 ]
Technical Reference : Test Equipment : RF Probe
  • RF Probe for HF - A RF Probe circuit for the RADIO frequency experimenter to check the presence of a RF signal and also to measure its strength
    [ Hits: 519 | Votes: 0 | Rating: 0 ]
Technical Reference : Test Equipment : Signal Generator Technical Reference : VHF Radios
  • UHF on a VHF Rig - This circuit enables fair copy of strong 444 MHz signals, off a local repeater, using a 2m rig and a 1/4λ 70 cm indoor ground plane antenna.
    [ Hits: 702 | Votes: 4 | Rating: 7.75 ]
Technical Reference : Vector Network Analyzer
  • Analog HF Antenna Analyser - A simple antenna analyser for the HF spectrum with a built-in signal generator with 3-digit LED frequency display.
    [ Hits: 899 | Votes: 0 | Rating: 0 ]

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