speed

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speed

114 links - and 3 categories

Antennas : Theory
  • Speedometers SWR Meters and Smith Charts - Have wondered why a Smith chart has such strange grid lines. Believe it or not, there is a logical progression from Speedometers to Smith charts that will make the Smith grid crystal clear.
    [ Hits: 479 | Votes: 1 | Rating: 5 ]
Internet and Radio : Mailing Lists
  • HSCW and HSMS reflector - High Speed Meteor Scatter (HSMS) e-mail reflector
    [ Hits: 494 | Votes: 1 | Rating: 10 ]
Manufacturers : Accessories
  • Peet Bros Company - Manufacturer of advanced electronic systems to measure such weather data as: wind speed, wind direction, wind chill, pressure, humidity, rainfall, and dew point.
    [ Hits: 634 | Votes: 2 | Rating: 10 ]
Operating Aids : Maps
  • LU Argentina prefix map - LU Argentina Country CALL division Antarctic and South Atlantic prefixes and sufixes
    [ Hits: 566 | Votes: 2 | Rating: 2 ]
Operating Modes : DSP
  • PSK63 - A super-fast PSK mode for RTTY Contesting, 100 wpm character transmission speed for contest exchanges and macro transmission versus RTTY at 60 wpm
    [ Hits: 1748 | Votes: 1 | Rating: 10 ]
  • Mt-63 technical description - The MT-63 modem, constructed around a high speed DSP processor, either in a dedicated external DSP unit like the Motorola EVM, or in PC software using the PC sound card, transmits 64 tones spaced 15.625 Hz apart, in the 1 kHz bandwidth.
    [ Hits: 631 | Votes: 0 | Rating: 0 ]
  • Pactor - PACTOR can be viewed as a combination of two earlier digital modes, packet radio and AMateur Teleprinting Over Radio (AMTOR). PACTOR provides improved throughput because its transmission speed adapts to the quality of the link and it uses Huffman compressed characters.
    [ Hits: 678 | Votes: 0 | Rating: 0 ]
  • Pactor III - PACTOR-III is a software upgrade for existing PACTOR-II modems that provides a new data transmission mode for improved speed and robustness. PACTOR-III is not a new modem or hardware device. Most current PACTOR-II modems are upgradeable to use PACTOR-III via a software update since PACTOR-II firmware accommodates the new PACTOR-III software
    [ Hits: 857 | Votes: 2 | Rating: 10 ]
Operating Modes : Morse code Radio Equipment : HF Amplifiers : Kenwood TL-922
  • QSK for the TL-922 and SB-220 mods - Beautifully constructed amplifiers. Unfortunately, are not suited for high speed T-R switching, a necessary attribute for operating AMTOR, QSK-CW, or SSB-VOX modes.
    [ Hits: 2978 | Votes: 7 | Rating: 8.57 ]
Software : DSP
  • glfer - glfer is a program for reception and transmission of QRSS/DFCW signals. It is composed of two main parts: the spectrogram window, where you can see the spectrum of the received signal vs. time the transmission functions, to emit cw characters at a slow but precisely controlled speed, using the QRSS (slow CW) or DFCW (Dual Frequency CW) modes
    [ Hits: 1821 | Votes: 0 | Rating: 0 ]
Software : Macintosh
  • Fast Morse - Macintosh morse code software, Fast Morse will convert any text you enter into the original Morse code equivalent, and play it on your speakers. The speed can be adjusted to anything from 1 to 35 words per minute if your computer can keep up, allowing you to send Morse signals at a rate your friends and fellow Morse enthusiasts can follow!
    [ Hits: 2820 | Votes: 9 | Rating: 6 ]
Software : Morse Code Decoders
  • MorseGen v1.2 - MorseGen converts text into a WAVE file of Morse code. The Tone and Speed are adjustable and the WAVE file can be repeated at a pre-set interval allowing it to be used as a CW Ident for amateur radio applications which require it.
    [ Hits: 2552 | Votes: 6 | Rating: 7 ]
Software : Propagation
  • GeoAlert-Extreme Wizard - GeoAlert-Extreme Wizard maintains updated geophysical indices and displays the information in a friendly - at a glance - manner. GeoAlert-Extreme Wizard features a Global Maximum Usable Frequency, MUF, map that creates and manages predictions from the VOACAP engine. Displayed geophysical indices include: solar wind Bz component, speed and pressure, current WWV type indices and predicted solar flux, planetary A-Index and probability of major storms at middle latitudes for the next day.
    [ Hits: 1723 | Votes: 3 | Rating: 7.67 ]
Technical Reference : Filters
  • A diode-switched band-pass filter - High speed silicn diodes work well as RF switches. This article describes how to use diodes for selecting two or more filters ARRL QST article by W1FB
    [ Hits: 2302 | Votes: 3 | Rating: 4.67 ]
Technical Reference : Radio Frequency Interference : BPL
  • Broadband news : Canadian BPL - Hydro-Québec joins efforts to provide high-speed internet service via power-lines
    [ Hits: 461 | Votes: 0 | Rating: 0 ]
  • New Developments with PLC in Japan - The Japan Amateur Radio League (JARL) is cautiously watching new developments concerning the commercialization of Power Line Communications (PLC), while continuing to carry out joint experiments with a high speed power line communication promoters' alliance to reduce potential interference to radio communications.
    [ Hits: 370 | Votes: 1 | Rating: 1 ]
  • Japan plays catch-up in high-speed plc - telecom asia
    [ Hits: 360 | Votes: 1 | Rating: 7 ]
  • Are you ready for BPL - Broadband over power lines (BPL) is a technique for transmission of high speed data (broadband Internet) over powerlines. Access BPL technology injects radio frequency energy into powerlines which were not designed for transmission of radio frequency energy, and leak substantial energy that causes interference to radiocommunications service
    [ Hits: 671 | Votes: 0 | Rating: 0 ]
Technical Reference : Raspberry Pi
  • Meteo Beacon in VHF with a Raspberry pi - VHF weather beacon based on raspberry pi. speed and direction of the wind, temperature, atmospheric pressure, are transmitted in voice every 15 minutes. In French
    [ Hits: 250 | Votes: 4 | Rating: 2.5 ]

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