tra pass

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tra pass

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Antennas : Receiving
  • Broadband receiving antenna matching - This article addresses the subject of obtaining the best signal transfer from an antenna to the typical 50-ohm receiver input over a wide frequency range, with emphasis on medium-wave (500 – 2000 kHz), encompassing the standard AM broadcast band and the 160-m amateur band.
    [ Hits: 5780 | Votes: 4 | Rating: 6.00 ]
Ham Radio : Exams : Exam Practice
  • QRZ Ham Radio Exam Test - This testing system serves as a training aid to help amateurs and prospective amateurs in passing the FCC exams neccessary to obtain US amateur radio licenses.
    [ Hits: 2245 | Votes: 15 | Rating: 5.27 ]
Manufacturers : Antennas : HF : Active antennas
  • Ameco - Text books relating to amateur radio (HAM radio), highpass and lowpass power filters, transmitter test loads (dummy loads), study tapes and disks to learn morse code, transceiver preamplifiers, antenna signal boosters.
    [ Hits: 2046 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Antennas : HF : Yagi Antennas
  • WIMO  pop - All kinds of antennas, RF connectors, radio transceivers and accessories like power supplies, morse keys, lowpass filters and so on.
    [ Hits: 17744 | Votes: 33 | Rating: 6.12 ]
Manufacturers : Antennas : VHF UHF Microwave
  • Dunestar Systems - Manufacturer of single band and multiband transceiver bandpass filters for HF. High pass filters, two radoi headphones mix and switch, 6 meter portable antenna, antenna remote switching and steering.
    [ Hits: 1329 | Votes: 2 | Rating: 1.00 ]
Manufacturers : Microwave
  • Laipac Technology Inc. - We are committed to constantly improving our solutions in areas of GPS System, GPS Receivers, GPS Antennas, GPS Dataloggers, RF Modules, Wireless Security Systems, Automatic Vehicle Location (AVL) for real time and passive tracking
    [ Hits: 929 | Votes: 10 | Rating: 4.90 ]
Operating Aids : Travelling
  • Travel.State.Gov - Largely US based information on travel warnings, US Embassy info, Lists of Doctors/hospitals overseas, passport info, and general travel tips etc.
    [ Hits: 917 | Votes: 9 | Rating: 5.00 ]
Operating Modes : International Space Station
  • ISS Realtime tracking - 5 Day prediction table for ISS and find when the ISS will be visible from your QTH by N2YO
    [ Hits: 4369 | Votes: 22 | Rating: 4.04 ]
Shopping and Services : Electronic Components
  • All American - Distributor of electronic components, ull range of semiconductors (active components), including relays, circuit breakers, transistors, diodes, memory devices, microprocessors, microcontrollers, and other integrated cuircuits, as well as passive components, such as capacitors, resistors, inductors, and electromechanical products, including cable, switches, connectors, filters, and sockets.
    [ Hits: 896 | Votes: 0 | Rating: 0.00 ]
Software : Contesting
  • CW Skimmer - Multi-channel CW decoder and analyzer for Windows XP/7/8/10. Simulatneously decode ALL cw signals in the receiver passband - up to 700 signals can be decoded in parallel and extract call sign
    [ Hits: 6334 | Votes: 6 | Rating: 6.17 ]
Software : DSP
  • DSP Controller - Bypass your sound card DSP prorgam to make transmitting much easier.
    [ Hits: 6125 | Votes: 5 | Rating: 1.20 ]
Software : Ham Exam
  • NuTest - NuTest is a complete XP/Vista compatible training package that will help you obtain or upgrade your FCC Amateur Radio License by passing the written theory tests. It creates interactive on-screen and printed tests using the official ARRL/FCC question pools.
    [ Hits: 2714 | Votes: 5 | Rating: 8.20 ]
Software : Satellite tracking
  • Orbitron - Orbitron is a freeware (cardware) application dedicaed to satellite tracking. Allow tracking of ISS, Iridium flares, ham radio satellites, International Space Station, satellite passes prediction, orbits, auto updates and alerting
    [ Hits: 12386 | Votes: 29 | Rating: 7.27 ]
  • GoSatWatch - Satellite tracking on the iPhone/iPod touch. Track and predict visible satellite passes. Touch a satellite in the map view to see it’s orbit path and location.
    [ Hits: 2369 | Votes: 0 | Rating: 0.00 ]
  • SatTrack Suite - Satellite Tracking and Orbit Propagation, Reports and Mission Planning Products, Pass Scheduling and Orbit Event Analysis, Dynamic Communications Link Modeling, 3-D Visualization of Complex Scenarios User Defined Regions and Contours, Constellation and Formation Flying Support, Global Positioning System Coverage
    [ Hits: 2361 | Votes: 5 | Rating: 7.20 ]
Technical Reference : Filters
  • The NVARC Ugly Filter Project - Project to build sets of band pass transmitting filters for reducing the interference between HF transceivers operated in close proximity
    [ Hits: 879 | Votes: 4 | Rating: 9.50 ]
  • Band-Pass Filters for HF Transceivers - Do your multiple-transmitter field day or contest efforts suffer from intrastation interference ?
    [ Hits: 3441 | Votes: 2 | Rating: 9.00 ]
  • Second-Harmonic-Optimized Low-Pass Filters - Sometimes we need a little more output filtering than traditional designs offer. Look at a new filter that can give you that extra boost. QST article by W3NQN
    [ Hits: 693 | Votes: 0 | Rating: 0.00 ]
Technical Reference : HF Radios
  • Scanner and tranceiver mods - Kenwood, Icom, Yaesu, Sony, Uniden Bearcat, Wilson MARK II & IV
    [ Hits: 12493 | Votes: 56 | Rating: 6.29 ]
  • Hombrewing an HF Transceiver - This page will describe the construction of a multi band SSB transceiver with all its components Band Pass Filter, Oscillator/Modulator unit, RX/TX Mixer TX Amp I.F. Amplifier AGC VFO Driver amplifier Receive audio amplifier Final amplifier Low pass filter Digital display and VFO stabiliser
    [ Hits: 4250 | Votes: 6 | Rating: 8.33 ]

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