rf antenna

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Antennas : 160M
  • K3KY's Short Beverage - Originally planned as an 80/160 Beverage, this antenna is a terrific performer on 40 and 30 meters
    [ Hits: 23966 | Votes: 8 | Rating: 5.63 ]
Antennas : 2M
  • 8 Element Quad for 145 Mhz  pop - 8 elements quad antenna for 2 meters band, centered on 145 Mhz
    [ Hits: 27073 | Votes: 95 | Rating: 5.92 ]
Antennas : Beverage
  • WW2Y/K2WI Beverage design - Ideas for enhanced beverage antenna performance, Single wire beverage improvements and arrays of two beverages
    [ Hits: 3728 | Votes: 3 | Rating: 9.33 ]
  • How to get a Perfect Beverage - Antenna special on hard-core-dx, how to install a perfect Beverage
    [ Hits: 3494 | Votes: 2 | Rating: 7.00 ]
  • Poor ground, better Beverage - Poorer conducting earth beneath a Beverage gives better performance
    [ Hits: 1804 | Votes: 0 | Rating: 0.00 ]
Antennas : Feed Lines
  • 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: 1096 | Votes: 3 | Rating: 3.33 ]
Antennas : Magnetic Loop Antennas : Quad
  • Pfeiffer Quads - The Pfeiffer Quad was described in QST and has the desirable feature that it is smaller than a standard cubic quad but does not compromise performance very much. The Pfeiffer design is rather difficult to construct because of the complicated linear loading networks required.
    [ Hits: 2836 | Votes: 2 | Rating: 5.50 ]
Antennas : Stealth
  • Antennas and Grounds for apartments - Suggestions on finding RF ground when you live in an apartment and you want to setup an antenna
    [ Hits: 20691 | Votes: 9 | Rating: 4.44 ]
Antennas : Theory
  • Interference Cancelling System - The use of interference signal cancellation has been around for some time. The idea is to use an auxiliary antenna almost any random length of wire in addition to the main receiving antenna
    [ Hits: 1664 | Votes: 1 | Rating: 3.00 ]
Antennas : Vertical Manufacturers : Accessories
  • TX RX Systems Inc - TX RX Systems Inc. manufactures signal boosters, rf antennas, transmitter combiners, cell enhancers, land mobile radios, duplexers, receiver multicouplers, bidirectional amplifiers, bda, rf amplifiers, rf filters, rf cavity filters, rf combiners, rf components, in building rf coverage, repeaters, repeater amplifiers, rf management equipment, rf systems, and rf solutions. TX RX Delivers Reliable Solutions.
    [ Hits: 1442 | Votes: 5 | Rating: 4.00 ]
  • EZMaster by HamRadioSolutions - EZMASTER the all mode all in one interface. USB/Parallel/Serial Device. Include 75 sec Digital Voice Keyer, K1EL Winkey CW Keyer, SO2R switching, two radio interface, two RTTY audio insulated ports, two flexible Antenna Switch control. Ideal for Contesting, SO1R, SO2R, field day and daily activity. Compatibile with all software on the market : CT, CTWIN, TR, NA, WriteLog, N1MM, WinTest, MMTTY, MIXW and more .
    [ Hits: 1865 | Votes: 4 | Rating: 4.25 ]
Manufacturers : Antennas : GPS
  • Autotena - Antenna manufacturer in Taiwan, products range are RF communication antennas ( CB, VHF, UHF, Dual band, Base Station, Marine, GPS,GSM, PCS, Cellular, DVB-T ) , Amplifiers , Mounting Kit ,Accessories & Related products.
    [ Hits: 4008 | Votes: 8 | Rating: 4.00 ]
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: 1693 | Votes: 0 | Rating: 0.00 ]
Operating Modes : Stealth Amateur Radio
  • HF Antennas for restricted space - Arrl document about invisible antennas and indoor systems. It is important to consider that few compromise antennas are capable of delivering the performance one can expect from the full-size variety. But the patient and skillful operator can often do as well as some fellows who are equipped with high power and full-size antennas. The "cliff-dweller" may not be able to "bore a hole" in the band as often, and as easily, but DX can be worked successfully when band conditions are suitable.
    [ Hits: 7407 | Votes: 6 | Rating: 4.83 ]
Software : Antenna analysis
  • Nec2Go - Powerful antenna modeling tool using NEC 2 computing engine. Nec2 specifically provide users, either those experienced with the Nec2 processes, or for those who are neophytes but want to model their own antennas. Nec2Go uses a simplified process for defining the antenna structure and then providing view of the structure, plots (2D and 3D) and other significant data that is pertinent to the design. This simplified process uses an edit file with equations for all definitions.
    [ Hits: 1710 | Votes: 1 | Rating: 5.00 ]
Software : Logging
  • Turbolog - TurboLog is a station management and logging program for the discerning radio amateur / hamradio operator. Besides powerful database and logging functions there is a fully integrated support for the control of typical radio station equipment, e.g. Transceivers, Packet radio, Morse and voice keyer, Digital modes terminal, Antenna switching, Acoustic alerting, and more. Trial version available
    [ Hits: 1077 | Votes: 2 | Rating: 4.00 ]
Technical Reference : Coax Cables and Connectors
  • RF Coaxial Connectors - RF coax(ial) connectors are a vital link in the radio spectrum. Coax connectors are often used to interface two units such as the antenna to a transmission line, a receiver or a transmitter. The proper choice of a coax connector will facilitate this interface.
    [ Hits: 4046 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Electronics
  • Ferrite on Reducing RFI - Using ferrite to reduce radio frequency interference with your PC monitor or antennas with your receivers or transceivers.
    [ Hits: 1995 | Votes: 0 | Rating: 0.00 ]
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