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224 links about pa system on dxzone.com

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 Site listings
Antennas : 80M
  • A magnetic loop antenna for HF  pop - Able to cover all frequencies between 3.5 and about 10 MHz, the loop described here is directional, does not require a radial system, and stands just 1.8 metres tall. Most parts needed can be purchased at a hardware shop. The antenna can be put together in an afternoon and requires only hand tools to assemble. It should cost less than sixty dollars to build. by Peter Parker VK3YE ex VK1PK
    [ Hits: 84893 | Votes: 27 | Rating: 4.45 ]
Antennas : Multiband
  • Crossed-Wire HF Antenna - This Crossed-Wire Electrically-Steerable HF Antenna, capable of transmitting signals over the entire 1.8 to 30MHz HF range, and capable of receiving signals at much lower frequencies is basically a crossed centre-fed wire system, consisting of four thin wires brought to a central mast by G3YNH
    [ Hits: 4716 | Votes: 2 | Rating: 10.00 ]
Internet and Radio : Radio Gateways
  • WinLink 2000 - WinLink 2000 employs Stations World-wide to provide an HF/VHF/UHF digital radio Interface into the Internet Email system for the mobile radio operator. Features include binary and graphic file attachments, APRS position reporting and over 340 downloadable WX products. The mode used is Pactor I and Pactor II.
    [ Hits: 4813 | Votes: 19 | Rating: 5.68 ]
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: 1239 | Votes: 2 | Rating: 1.00 ]
Manufacturers : Antennas : VHF UHF Microwave : Microwave antennas
  • Q-PAR Microwave Antennas - The company (founded in 1973) excels in the research, design, development and manufacture of microwave antenna systems & components. Our range includes horn, reflector, sinuous, spiral, LPDA, helical antennas, etc; antenna positioners, and many bespoke components.
    [ Hits: 317 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Cable and Connectors
  • Max-Gain Systems, Inc. - Fiberglass for the antenna builder, Antenna Mart quads, Bandmaster quads, transmitting components, vacuum capacitors and relays, tower accessories, gin poles, remote RF coax switches, rotating side mounts, quad spreaders, quad parts, bristol wrenches, doorknob capacitors, transmitting electron tubes, and much more!
    [ Hits: 6731 | Votes: 8 | Rating: 7.43 ]
Manufacturers : Interfaces
  • SCS PTC Priority listing - Special communications systems, the creators of pactor, TNC using DSP protocols
    [ Hits: 1138 | Votes: 3 | Rating: 7.33 ]
Manufacturers : Repeaters
  • Pacific Research Solutions - Repeater Controllers, Repeater Tone Panels, Telephone Interface, Remote Monitoring Systems, Process Control and TDS Monitors
    [ Hits: 1530 | Votes: 7 | Rating: 8.29 ]
Operating Aids : Time
  • USNO Mater Clock Time - Time reference from USNO, USNO Time in Standard Time Zones,USNO Master Clock Time Animated GIF Clocks, Analog Java Clock, Compute Local Apparent Sidereal Time, Check your local System Clock vs. our Master Clock!
    [ Hits: 1571 | Votes: 9 | Rating: 5.89 ]
Operating Modes : Hellschreiber
  • Hellschreiber beacon project - This web site describes a low power beacon system to be used for propagation and performance tests on the lower bands. The beacon offers CW (on-off keyed) modes and FSK modes; the traditional Morse ID mode, and Feld-Hell, another highly noise immune CW mode.
    [ Hits: 1439 | Votes: 6 | Rating: 9.83 ]
Operating Modes : Packet Radio Operating Modes : Repeaters
  • KP3AV Repeater Systems - Welcome to Puerto Rico Repeater Home page, Live Repeaters and more Amateur Radio information.
    [ Hits: 852 | Votes: 13 | Rating: 8.16 ]
Operating Modes : Satellites
  • SPRE Home Page - The Spartan Packet Radio Experiment (SPRE) is an Amateur Radio (Ham radio) communications experiment. The primary mission was to test satellite tracking using amateur packet radio and Global Positioning System (GPS). SPRE was developed and built by the University of Maryland Amateur Radio Association (UMARA) with assistance from NASA, volunteer engineers, and volunteer software professionals.
    [ Hits: 741 | Votes: 1 | Rating: 4.00 ]
Radio Scanning
  • TV DX pages - General and technical informations, colour and broadcasting systems by country, frequencies
    [ Hits: 1446 | Votes: 2 | Rating: 1.00 ]
Radio Scanning : Nature : Weather
  • National Weather Service - Some little known facts about the NOAA Weather Radio system
    [ Hits: 829 | Votes: 0 | Rating: 0.00 ]
Shopping and Services : Regional : Europe : Italy
  • Radiosystem - Italian importer for many Ham Radio companies
    [ Hits: 2742 | Votes: 3 | Rating: 4.00 ]
Software : APRS
  • MacAPRS - Macintosh automatic position reporting system, developed by Bob Bruninga, WB4APR, to track boats and vehicles using GPS and packet radio. MacAPRS was written by Keith Sproul, WU2Z and Mark Sproul, KB2ICI
    [ Hits: 3481 | Votes: 6 | Rating: 4.33 ]
Software : Beacon Monitoring
  • BeaconClock - Real-time, schedule of the transmitting times, frequencies, short-path and long-path beam headings for each beacon from your QTH. BeaconClock is for Windows 9x/NT/2k systems.
    [ Hits: 1719 | Votes: 3 | Rating: 4.67 ]
Software : DSP
  • AirMail - AirMail is a HF radio mail program for sending and receiving messages via Pactor, either via the ham radio system or participating marine or commercial services
    [ Hits: 2619 | Votes: 3 | Rating: 10.00 ]
Software : DX Cluster
  • RXClus - RXCLUS is a free amateur radio software especially designed for the DX'ers and SWL's wanting to receive the informations transmitted by packet radio on the DX-cluster system. It supports also telnet protocol.
    [ Hits: 4776 | Votes: 15 | Rating: 8.25 ]
Software : Databases
  • Frequency Manager - Database system with 60000 frequencies, powerfull 3D MUF/LUF-propagtion software and full copntrol of several receivers
    [ Hits: 5668 | Votes: 14 | Rating: 4.65 ]
Software : Macintosh
  • MacProp - Propagation forecasting software for the Macintosh
    [ Hits: 1494 | Votes: 2 | Rating: 5.50 ]
Software : Packet
  • Ipmulse Systems - Impulse Systems offers several innovating products: F6FBB Language Editor and WinPack CoDec
    [ Hits: 882 | Votes: 10 | Rating: 8.00 ]
  • WinConvers - Convers is a chat system (similar to IRC) operating using internet TCP/IP protocols on amateur packet radio and the internet.
    [ Hits: 1424 | Votes: 3 | Rating: 6.00 ]
Software : Propagation
  • AREPS propagation programs - Collection of various propagation software by Space and Naval Warfare Systems Center, San Diego, Atmospheric Propagation Branch
    [ Hits: 7206 | Votes: 27 | Rating: 4.62 ]
  Result Page:  1 2 3 4 5 6 7 8 9 [next]
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