net freq

net freq

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• Constructing a LowFER Antenna - This article describes the antenna for Low Frequency Beacon. It originally appeared in the "Lowdown" for Oct. 1999.
  [ Hits: 1539 | Votes: 2 | Rating: 5.5 ]

• Dish 802.11 Wireless Networking Antenna - This antenna modification is for the IEEE 802.11b networking protocol that operates at 2.4 GHz. It can be scaled easily to the 5 GHz frequency used by IEEE 802.11a by simply scaling the dimensions on the feed can and the excitation antenna to 2.4/5 = 48% of the dimensions shown above.
  [ Hits: 9443 | Votes: 8 | Rating: 6 ]

• NCDXF/IARU Beacon Project - The NCDXF, in cooperation with the IARU, constructed and operates a worldwide network of high-frequency radio beacons on 14.100, 18.110, 21.150, 24.930, and 28.200 megaHertz. These beacons help both amateur and commercial high-frequency radio users assess the current condition of the ionosphere
  [ Hits: 1333 | Votes: 4 | Rating: 8.5 ]

• County Hunter Net Procedures - The main purpose of the county hunter's net is to facilitate the operations of those hams seeking to work all counties in the United State. It is also a useful place for CW emergency communications as there is almost always someone monitoring the frequencies.
  [ Hits: 1529 | Votes: 1 | Rating: 10 ]

• Low Power Radio Modules - Low power radio modules - supplying rf modules, rf transceivers, radiometrix transmitters receivers, low power radio modules, scada, frequency hopping, 900 mhz, wireless data transmission, data telemetry, gps modules & receivers and more
  [ Hits: 826 | Votes: 0 | Rating: 0 ]

• Spectrum Instruments - Spectrum manufactures very high-performance, low-cost, GPS-disciplined time and frequency reference standards for industry, scientific, calibration, broadcast and amateur operators.
  [ Hits: 472 | Votes: 1 | Rating: 10 ]

• Ham Radio Audio and Resources - EchoLink and IRLP Internet Radio Linking Project Node's, Hurricane Watch Audio Feed's and Info, Live Scanner/Other Feed's from the USA, Local Ham Frequencies, Online Receiver's, Shoutcast Live Audio Feed's from the USA, Southern California Frequencies and more
  [ Hits: 1225 | Votes: 1 | Rating: 1 ]

• HF - VHF Radiowave Propagation Center - High frequecy and VHF radio propagation data, solar and geomagnetic real-time and historic data, as well as forecasts. A comprehensive propagation resource compiled by Tomas Hood, editor of the propagation columns of CQ, CQ VHF, Popular Communications, and Monitoring Times magazines. Solar Weather, Geomagnetic, Aurora, Ionospheric reports via eAlerts and webpage. WAP phone access. Live and educational resources, and more.
  [ Hits: 1435 | Votes: 2 | Rating: 7.5 ]
• HF Radio wave propagation - Radiowave propagation in the medium and high frequency spectrum in DOC format
  [ Hits: 954 | Votes: 3 | Rating: 3.33 ]

• Yaesu FT100 Frequently Asked Questions - This FAQ is made from the archives of the FT100 mailing list based on the OneList service.
  [ Hits: 1258 | Votes: 1 | Rating: 5 ]

• 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: 3851 | Votes: 2 | Rating: 4.5 ]

• Missouri/Kansas Scanner Radio - Provides comprehensive frequency listings for various public safety agencies and private organizations who operate across the Kansas and Missouri Region.
  [ Hits: 10211 | Votes: 63 | Rating: 6.6 ]

• RFI - Radio France Internationale - Le site de Radio France Internationale (RFI). L'actualité internationale en français et en 19 langues. Ecoutez RFI sur Internet et découvrez les dossiers d'actualité, les programmes et les fréquences de RFI à travers le monde, toutes les émissions, le club RFI, la langue française, les forums de discussion, les revues de presse, les éditoriaux, la météo marine, MFI.
  [ Hits: 2242 | Votes: 13 | Rating: 4.07 ]
• Radio Nacional de Angola - Provides broadcast times, frequencies and power of the network emissions. Airs mediumwave, FM, shortwave and RealAudio broadcasts
  [ Hits: 702 | Votes: 5 | Rating: 5.2 ]

• Alfa Lima International - A free radio station that is transmitting world wide on several shortwave frequency 's with loads of pirate and freeradio information.
  [ Hits: 1203 | Votes: 2 | Rating: 9.5 ]

• 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: 47778 | Votes: 56 | Rating: 6.97 ]

• 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 ]

• Display/Stabiliser unit - The Display/Stabiliser unit displays the signal frequency on a Hitachi LCD module.
  [ Hits: 815 | Votes: 1 | Rating: 10 ]

• General Information about RFI/EMI - RFI/EMI RadioFrequency interference/electromagnetic interference by ARRL Technical Information Service page
  [ Hits: 4378 | Votes: 2 | Rating: 2 ]

• 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: 672 | Votes: 0 | Rating: 0 ]

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