pa unit

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pa unit

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Antennas : Antenna Calculators
  • Full Wave Loop Antenna Calculator - Use this online calculator to determine the length of a full-wave loop antenna from the frequency. Both metric and English units of measurement are supported. Quarter-wave matching section lengths are also calculated.
    [ Hits: 929 | Votes: 5 | Rating: 8.2 ]
  • Vertical Antenna Calculator - Use this online calculator to determine the length of a quarter-wave antenna from the frequency. Both metric and English units of measurement are supported.
    [ Hits: 915 | Votes: 8 | Rating: 6.99 ]
  • Dipole Calculator - Use this online calculator to determine the length of a dipole antenna from the frequency. Both metric and English units of measurement are supported.
    [ Hits: 942 | Votes: 11 | Rating: 6 ]
Antennas : End-Fed : End Fed Half Wave Antenna
  • EFHW matching unit - End-Fed Half Wave matching unit project, based on a FT140-43 with SWR plot tests made using capacitor and without.
    [ Hits: 902 | Votes: 2 | Rating: 10 ]
  • End-Fed HalfWave Matching Unit for SOTA operations - An end-fed half wave antenna matching unit made of 3:24 turns ratio on a FT140-43 toroid with a 150pF capacitor across the input.
    [ Hits: 259 | Votes: 0 | Rating: 0 ]
Antennas : Longwave DX Resources : DX Peditions : 2011 DXpeditions
  • OJ0UR - Market Reef 2011 OJ0UR DX pedition by PA5R/DJ5MO, PD9DX, ON8AK and ON5UR.
    [ Hits: 165 | Votes: 0 | Rating: 0 ]
Ham Radio : Clubs : Scouting Ham Radio : Clubs : Technical Specialty
  • LISATS - The Launch Information Service and Amateur Television System, a club of Amateur Radio Operators Serving the Kennedy Space Center Community and Visitors
    [ Hits: 150 | Votes: 0 | Rating: 0 ]
Manufacturers : Antennas : HF : HexBeam
  • Hex Beam SP7IDX - Manufacture HF radio antennas for sale to the amateur radio community, hexagonal beams, parts and accessories.
    [ Hits: 413 | Votes: 0 | Rating: 0 ]
Radio Equipment : VHF-UHF Handhelds : Yaesu VX-8R
  • Arduino Yaesu VX8r GPS - Arduino code for buidling Yaesu VX8r Handheld Transmitter-compatible GPS. A compatbile GPS unit, made with open-source and generally available components, that can be used to proivde the position and velocity information for the Yaesu HT
    [ Hits: 489 | Votes: 0 | Rating: 0 ]
Shopping and Services : Parts & Surplus
  • Front Panel Express, LLC - The simple and convenient way to a custom front panel - even for single units. Custom-designed front panels and enclosures for electronic equipment.
    [ Hits: 394 | Votes: 1 | Rating: 2 ]
Shortwave Radio : Clubs
  • Modern International Radio Listeners - Modern DX Club Not-for-profit organization serving the radio monitoring community founded in 1990 muzaffargarh Pakistan. The main interest of the club is shortwave dxing.
    [ Hits: 428 | Votes: 0 | Rating: 0 ]
Software : Antenna analysis
  • Antenna Calculation Software - The program consists of tabbed pages for various antenna and transmission line calculation. You can compute the values for an inverted L network that will allow you to match the 50 ohm output of the radio, or you can compute the necessary length in the units of choice for a 5/8 wave vertical for 10 meter band.
    [ Hits: 434 | Votes: 1 | Rating: 10 ]
Software : Software Defined Radio
  • SDR-RADIO.com - SDR-RADIO.com is a Windows console for SDR receivers and transceivers. Designed for the commercial, amateur radio and short-wave listener communities, the console provides a powerful interface for all SDR users. Many SDR owners have made their radios available over the internet. Just look at the Web Servers page for a list of the radios you can use. You do not need a licence to use this sodftware with RFSPACE, FUNcube Dongles, Soundcard (SoftRock) and low-end SDRs.
    [ Hits: 3166 | Votes: 5 | Rating: 7.4 ]
Software : Spectrum analyzers
  • Spectrum Analyzer Pro Lab - Spectrum Analyzer pro is a commercial application that will turn your computer into a modern spectrum analyzer. This will provide you with features that go far beyond the possibilities of any stand-alone hardware unit. Run under recent Windows versions, available in trial mode
    [ Hits: 1035 | Votes: 2 | Rating: 10 ]
Technical Reference : Antenna Switch Technical Reference : Filters
  • A home-built low-pass filter for 4m - This unit uses four capacitors, only two of which are variables, and a single tapped coil. It is built in a die-cast box, and has been tested up to 80W input power on 70MHz by G4CJZ
    [ Hits: 588 | Votes: 0 | Rating: 0 ]
Technical Reference : Pan Adapter
  • Panadapter for TS590SG - Setting up as a Panadapter for TS 590S or 590SG using RSP Radio Spectrum Processor with HDSDR, VSPE, TRX-Manager and Logic9
    [ Hits: 679 | Votes: 1 | Rating: 1 ]
Technical Reference : Test Equipment
  • An Experimental Q Meter - The article describes Q factor, methods of measuring Q factor, inductance and capacity using a Q meter and the design of an experimental Q meter unit. The Q factor or quality factor of an inductance is commonly expressed as the ratio of its series reactance to its series resistance.
    [ Hits: 234 | Votes: 0 | Rating: 0 ]

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