gain

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gain

276 links - and 3 categories

Antennas : 160M
  • Double Extended Zepp Antenna  pop - This double extended Zepp provides 3 db gain over a dipole on the band it is designed for. Each side or leg is about 5/8 wavelength long.
    [ Hits: 26152 | Votes: 28 | Rating: 6.35 ]
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: 6869 | Votes: 4 | Rating: 5.25 ]
  • QM7 7 elements 144 MHz Yagi-Uda Antenna - The QM7 antenna is a simple 7 elements Yagi with 3.70 m boom length for the lower 144 MHz SSB/MGM band, used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 11.35 dBd; i.e. 13.5 dB forward gain over the isotropic radiator, while the F/R is about 12.5 dB
    [ Hits: 5361 | Votes: 15 | Rating: 5.27 ]
Antennas : Collinear
  • 6dB colinear VHF antenna  pop - Building details of a VHF colinear antenna with 6 db gain
    [ Hits: 63342 | Votes: 107 | Rating: 5.56 ]
Antennas : Moxon
  • Cebik Moxon Rectangles - The Moxon Rectangle is growing in popularity as a compact 2-element array that approaches a full-size 2-element in gain but with a far superior front-to-back ratio and a direct match for the standard 50-Ohm coaxial cable.
    [ Hits: 3328 | Votes: 5 | Rating: 5 ]
Antennas : Theory : Antenna Gain
  • The gain of aerials: the myths explained - In the long history of beam aerials there has persistently existed the claim that certain types of aerials perform better than yagis.
    [ Hits: 1570 | Votes: 1 | Rating: 10 ]
  • Why I use dBi - Info about Gain
    [ Hits: 5698 | Votes: 12 | Rating: 3.75 ]
Manufacturers : Accessories
  • FX Rotor Works - rotor repair rotator repair rebuild sales CDE Telex HyGain MFJ Hy-Gain
    [ Hits: 2422 | Votes: 4 | Rating: 1 ]
Manufacturers : Antenna Rotators
  • C.A.T.S, Rotor Doc - Manufacture CATS antenna rotator and digital controls. Service, stock, and provide parts for top quality AMERICAN-MADE antenna rotators from companies such as Alliance, C.A.T.S., CDE/Hy-Gain, and Channel Master, both young and old.
    [ Hits: 7475 | Votes: 17 | Rating: 6.47 ]
Manufacturers : Towers and Accessories
  • The One Man Tower - Complete tower system incorporates rotator mount, and lateral support collars. You never have to climb again - and forget the hassle of tilting over to work on large arrays. The "One Man Tower" is the strongest dmall footprint free standing self erecting tower in the world
    [ Hits: 6783 | Votes: 23 | Rating: 9.48 ]
Operating Modes : Mobile
  • G3TSO Mobile Antenna Page - Some useful information for tuning mobile antennas gained the hard way. A collection of useful tips and hints on adjusting and matching a mobile antenna and methods of feeding a mobile antenna
    [ Hits: 158 | Votes: 1 | Rating: 10 ]
Radio Equipment : HF Transceivers : Kenwood TS-950SDX
  • Kenwood TS-950S RF gain mod - The Kenwood TS-950S and TS-950SD HF transceivers are fine radios. However, many, if not all, of them were produced with a design flaw which allows the RG GAIN control to cease function in the presence of a strong signal IF the AGC has been turned OFF
    [ Hits: 1769 | Votes: 1 | Rating: 1 ]
Radio Equipment : Radio Manuals
  • Hy-Gain Manuals - This is the manuals section for the Hy-Gain website. Currently, hy-gain is listing all of their manuals only in the Adobe Acrobat PDF format.
    [ Hits: 1813 | Votes: 3 | Rating: 3 ]
Shopping and Services : Regional : Europe : Germany
  • Difona Communication GmbH - Difona is a german base dealer for amateur radio transceivers, anntennas, PA, power supplies, accessories from several brands like Kenwood, ICOM, Yaesu, MFJ, ACOM, DAIWA, Diamond, DXSR, Alinco, Ameritron, ETM, Fritzel, UKW Technik, AOR, Bencher, Create, G.B., Heil, Hotline, Maldol, Tonna, Titanex, Outbacker, Hy-Gain, Mirage, SCS, SGC, SSB Elektronik
    [ Hits: 12184 | Votes: 32 | Rating: 7.14 ]
Software : Antenna analysis
  • ERP Calculator Plus - ERP Calculator is an Amateur Radio software utility designed to perform a side-by-side comparison of two Ham Radio antenna systems. ERP Calculator comes pre-programmed with data files including published data for several popular brands and types of coax cable as well as several popular antenna system brands and models. ERP Calculator displays values of ERP, Antenna Power Gain, Antenna Feed point Power, Antenna System Gain in dB, Antenna Gain in dBd, SWR Attenuation in dB, SWR Power Attenuation, Coax Loss in dB, and Coax Power Loss
    [ Hits: 3001 | Votes: 9 | Rating: 5.11 ]
Technical Reference : Audio
  • Audio Preamp - Easy circuit that provide good gain to weak audio signals
    [ Hits: 3818 | Votes: 2 | Rating: 3.5 ]
Technical Reference : CB Radios
  • Rogerbirds HR 2510 mods - Rogerbird's Radio Modification Information, HR2510 or Lincoln Frequency Conversion Instructions, Mic Gain Modification, and more
    [ Hits: 7769 | Votes: 57 | Rating: 8.31 ]
Technical Reference : Homebrew
  • IK4AUY Sergio - Advanced QRP Low Cost Mosfets HF Linear Amplifier with schematics, IMD, gain data and more. Six articles about amateur radio.
    [ Hits: 3633 | Votes: 27 | Rating: 8.1 ]
Technical Reference : Preamplifiers
  • 144 MHz preamplifier with BF981 - Design of a preamplifier for 144 MHz with 1 dB NF and 23 dB gain using BF981. This amplifier is using a low cost silicon MOSFET (BF981 from Philips) to give more than 20 dB gain with around 1 dB noise figure on 2 meter.
    [ Hits: 17958 | Votes: 28 | Rating: 5.82 ]
Technical Reference : Radio Frequency Interference : Noise Reduction
  • Antenna Noise and Signal Cancelling at LF - By using the signals from two antennas, controlling their relative amplitudes and controlling the phase of one of them, unwanted signal or unwanted noise can be phased out. Circuitry is described which uses the signal from a wire antenna to provide selective cancelling against the signal output from an LF loop antenna.
    [ Hits: 7905 | Votes: 6 | Rating: 4.5 ]

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