top band

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top band

92 links - and 1 categories

Antennas : 160M
  • 160m double L antenna - Planning and modeling a special L antenna for Top Band
    [ Hits: 942 | Votes: 0 | Rating: 0 ]
  • Compact Top Band antennas - Modeling compact 160 meter antennas, inverted L, half wave dipoles and linearly loaded dipole
    [ Hits: 674 | Votes: 1 | Rating: 10 ]
  • Ultracompact 160 Meter Antenna - A compact antenna for 160 meters, suitable for hams tha want operate top band buh have a limited space
    [ Hits: 1221 | Votes: 1 | Rating: 3 ]
Antennas : 80M Antennas : Delta loop Antennas : Dipole
  • Folded dipole antenna by N4SPP - A quarter size cobra dipole antenna, a multiband dipole antenna for 40 to 10 meters basedn on original cobra dipole design but with a limited space by N4SPP
    [ Hits: 2347 | Votes: 1 | Rating: 8 ]
Antennas : Four Square Antennas : Theory
  • Antenna Efficiency - K0BG article con antenna efficiency covering topics like radiation resistance, coil losses and ground losses, other kind of losses. How calculate efficiency and Bandwidth Notes
    [ Hits: 377 | Votes: 0 | Rating: 0 ]
Antennas : VHF UHF
  • DL6WU Yagi antenna - The DL6WU yagi antenna for 23cm band
    [ Hits: 1046 | Votes: 11 | Rating: 7.55 ]
Antennas : Vertical Antennas : WiFi
  • Laptop Mini Wireless Antenna - A small antenna to improve signal reception of a laptop wireless card. This will boost the gain of your wi-fi card and will increase network speed and bandwidth.
    [ Hits: 1151 | Votes: 7 | Rating: 3.29 ]
Propagation : Sporadic E
  • 70Mhz Sporadic E report - Sound clips and notes on sporadic E on four meter band
    [ Hits: 236 | Votes: 0 | Rating: 0 ]
Radio Equipment : HF Transceivers : Elecraft K2
  • K2 Change 20 30m band filter - Elecraft K2 mod. Narrower bandpass filter, better stopband attenuation
    [ Hits: 154 | Votes: 0 | Rating: 0 ]
Radio Equipment : HF Transceivers : Ten-Tec Orion Radio Equipment : HF YAGI Antennas : Cushcraft A3S Software : Filter Design
  • ScopeIIR - ScopeIIR: an Infinite Impulse Response (IIR) digital filter design tool for Windows. It designs high-order IIR filters based on analog filter prototypes, and can design lowpass, highpass, bandpass, and bandstop filters.
    [ Hits: 611 | Votes: 2 | Rating: 5.5 ]
Technical Reference : Amplifiers : HF Amplifiers
  • 811 Linear Amplifier project - A lower power desktop linear with integrated 120vac power supply. This, very compact, dual 811 version will deliver about 300 watts output. Covers all bands including WARC bands.
    [ Hits: 1383 | Votes: 2 | Rating: 10 ]
Technical Reference : Filters
  • Band-stop filter - Wikipedia page on Notch filter, a narrow stopband - high Q factor filter
    [ Hits: 289 | Votes: 2 | Rating: 2.5 ]
  • Notch Filter Designer - Online calculator, Butterworth Bandstop (Notch) Filter Designer
    [ Hits: 643 | Votes: 6 | Rating: 3.33 ]
Technical Reference : Test Equipment
  • 2m sniffer - How to construct a Sniffer for 2m band
    [ Hits: 582 | Votes: 0 | Rating: 0 ]

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