q meter

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q meter

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Antennas : 2M
  • QM5 Yagi for 2 meters band - The QM5 antenna is a simple 5 elements Yagi with 1.88 m boom length for the lower 144 MHz SSB/MGM band, I used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 9.17 dBd; i.e. 11.3 dB forward gain over the isotropic radiator, while the F/R is about 11.5 dB. Elements
    [ Hits: 6477 | Votes: 4 | Rating: 5.25 ]
  • 8 Element Quad for 145 Mhz  pop - 8 elements quad antenna for 2 meters band, centered on 145 Mhz
    [ Hits: 28155 | Votes: 96 | Rating: 5.96 ]
Antennas : 80M
  • Switchable Antenna 80/160 meters band  pop - A switchable antenna for 80/160 meters by IK1ZOY. A new version of a 1/4L 80 m. dipole modified for use in 160 m. band. using it's own coaxial cable feeder to wrap a coil.
    [ Hits: 16326 | Votes: 6 | Rating: 5.50 ]
Antennas : Beverage
  • Comparison of Beverage antenna - A ranking of receiving antennas based on noise being evenly distributed in all directions. These rankings are most accurate in the frequency range of AM broadcast, 160 or 80 meter bands
    [ Hits: 2676 | Votes: 2 | Rating: 6.50 ]
Antennas : Feed Lines
  • Transmission Lines - Whenever you choose a coax feedline, the frequency of operation is a very important consideration. Over the operating bandwidth of the coax the VSWR is low, typically 1.2:1 or better. Insertion loss is also an important parameter. It is usually specified in dB/foot and is a linear relationship.
    [ Hits: 1162 | Votes: 0 | Rating: 0.00 ]
  • SWR: Maximum allowable VSWR - VSWR (voltage-standing-wave-ratio) represents the degree with which an antenna is "matched" to the system impedance. Most modern antennas do not require any tuning for optimum performance. VSWR is one of the easiest parameters to measure and VSWR meters are becoming very popular antenna installation tools
    [ Hits: 1118 | Votes: 3 | Rating: 3.33 ]
Antennas : Magnetic Loop Antennas : Quad
  • Cubic Quad  pop - The cubic quad is a very popular way to get reasonably high gain and excellent front to back ratios as well as low angles of radiation for without going to extreme heights. Includes design for 2 6 10 12 15 meter bands
    [ Hits: 66414 | Votes: 55 | Rating: 4.76 ]
  • Quad and ModQuad Antenna - Some thoughts on a "hardware-store special" 2-meter quad, and a modified quad for 2 or 10 meters by K3MT
    [ Hits: 7048 | Votes: 5 | Rating: 6.20 ]
Antennas : Theory
  • Antenna Selection Made Easy - This page will help you answer important questions about antenna selection before you talk to a supplier. After reading this paper, you should be able to better determine the most important parameters you need to know for your antenna selection criteria.
    [ Hits: 1881 | Votes: 2 | Rating: 3.00 ]
Antennas : Wire
  • 40m Short Antenna  pop - GM4JMU shortened dipole for 40 meters band
    [ Hits: 26048 | Votes: 28 | Rating: 4.89 ]
  • Half square antenna - The elevated half square antenna is a very simple antenna that can be constructed from common materials yet gives significant improvement over a dipole at the same elevation. Ground mounted versions of this antenna are commonly used in amateur radio for 75/80 and 160 meter bands
    [ Hits: 6998 | Votes: 3 | Rating: 7.67 ]
CB Radio : DXing
  • DXQSM Freeband dx infos - Website for 11 meters freebanders activations , QSM adress( OM & email) logs links and dx cluster
    [ Hits: 1757 | Votes: 2 | Rating: 10.00 ]
  • DXIOTA Freeband IOTA info - Iota Website for 11 meters freebanders
    [ Hits: 965 | Votes: 1 | Rating: 8.00 ]
Manufacturers : Test Equipment : Power Meter
  • Telewave - Telewave's innovative engineering produces the industry's toughest antenna systems. Yagi, Fiberglass Collinear, and Dipole models are available from 66-2500 MHz. Wattmeters, test equipment,rf power meters, duplexers, filters and cavities, transmitters combiners
    [ Hits: 1724 | Votes: 0 | Rating: 0.00 ]
Operating Modes : Internet Linking
  • Freeband EQSO Server - Eqso server for eleven meter freebanders. Only freebanders are allowed by this eqso server, based in spain
    [ Hits: 3001 | Votes: 30 | Rating: 4.76 ]
Operating Modes : Packet Radio : Beginner's Guide
  • An Introduction to FlexNet - Features and operation of FlexNet packet networking software are discussed. Details of the software architecture, RMNC and MS-DOS hardware platforms, applications, user interface, adaptive parameters, and routing techniques are presented.
    [ Hits: 919 | Votes: 1 | Rating: 1.00 ]
Shopping and Services : Test equipment
  • Techni-Tool! - Techni-Tool is a distributor of electronic production tools, oscilloscopes, multimeters, power supplies, cases, tool kits, cutters, wrenches, crimpers, solder desolder stations, BGA, microscopes, lamps, static control, workstations, chairs, torque screwdrivers, tweezers, dusters, chemicals.
    [ Hits: 573 | Votes: 2 | Rating: 10.00 ]
  • AST Global Electronics - New and Pre-Owned Agilent, Avcom, Fluke, Hewlett Packard, Instek, Iwatsu, Leader, LeCroy, Tektronix, etc. Oscilloscopes, Spectrum Analyzers, Network Analyzers, Power Supplies, Video Test Equipment, Generators, Meters and tons more
    [ Hits: 627 | Votes: 1 | Rating: 10.00 ]
  • Test & Measurement Equipment Buying Guide - Compare and select Test& Measurement equipment according to its technical parameters; access library of manufacturers specs and data sheets. TestBuyer.com
    [ Hits: 364 | Votes: 1 | Rating: 5.00 ]
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