coil q

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coil q

55 links

Antennas : 160M
  • 160m inverted L by W6SDO - A 160 meter antenna with a base loading coil used to tune the two lower frequency segments of the band.
    [ Hits: 1826 | Votes: 3 | Rating: 7.33 ]
Antennas : 40M : 40 meter Delta Loop Antennas
  • Short Delta Loop for 40m - A youtube video of a Short Delta Loop antenna, only 8,5 meters per side. This project use a loading coil of 56,7 uH for electrical matching.
    [ Hits: 3925 | Votes: 15 | Rating: 6.46 ]
Antennas : Coils
  • Coil Winding Tips - Tips on winding wire coils used as inductive loads, traps, band-pass filters, are implemented in a number of amateur radio projects especially antenna projects
    [ Hits: 875 | Votes: 7 | Rating: 6 ]
  • RF Choke Coil - Made Easy - In this article K3DAV show a very simple way to make an RF choke coil that will remove your RF feedback troubles
    [ Hits: 1260 | Votes: 6 | Rating: 5.83 ]
  • Coil Design - A page dedicated to antenna coil home brewing and coil design by VE6WZ
    [ Hits: 1475 | Votes: 12 | Rating: 5.08 ]
  • Winding Inductors on Cantex 4 Inch PVC Tubing - Coil winding on 4 inch PVC tubing with home-made tooling.
    [ Hits: 627 | Votes: 0 | Rating: 0 ]
  • Solid vs. Stranded wire in coils - Skin effect and proximity effect on making coils with stranded wire. An interesting comparison on making coils.
    [ Hits: 766 | Votes: 1 | Rating: 1 ]
Antennas : Dipole
  • The Short Dipole Using Coils - A very popular method of making a short dipoles resonate at a given frequency. This type of antenna is suitable for single band, narrow bandwidth use.
    [ Hits: 513 | Votes: 0 | Rating: 0 ]
  • Homebrew 40-80 meter dipole - A 40/80 meters dipole made with two loading coils based on a project by IK1ZOY
    [ Hits: 1405 | Votes: 4 | Rating: 8.75 ]
Antennas : End-Fed : End Fed Half Wave Antenna
  • End Fed Half-Wave Antennas - An interesting article on end fed half-wave wire antennas with a couple of original experiments. Author illustrate the role of the QRP matchbox, and a 40/20 meter antenna with a center stub making it a large bandwidth antenna for 40 and 20. Includes also an 80/40 end fed with the typical coil to make it available on 80 merts band.
    [ Hits: 287 | Votes: 2 | Rating: 10 ]
Antennas : Mobile Antennas : Multiband
  • Homemade Loaded Coil Dipole - Homemade Loaded Coil Dipole ( w8010 diamond ) for 10, 15, 20, 40 and 80 meter
    [ Hits: 1059 | Votes: 0 | Rating: 0 ]
Antennas : Portable
  • Balcony Mounted Buddistick Antenna by KP4MD - The antenna handles 250 watts and covers 40 through 10 meters, with an optional add on coil for 80 and 60 meters. The author in this pages includes an interesting video in which describes the antenna setup, and the importance of the shunting coil on lower bands like 40 and 80 meters. SWR curves diagrams are also included and demonstrate the influence on resonating frequency of the shunting coil.
    [ Hits: 279 | Votes: 3 | Rating: 10 ]
Antennas : Tuners
  • The Z Match Using a Toroidal Core Coil - Combined with Miniature Tuning Gang Capacitors, a toroidal core inductor is a means to assemble a compact Z Match assembly for Low Power (QRP) use.
    [ Hits: 608 | Votes: 0 | Rating: 0 ]
Software : Circuit Design
  • Coil Inductance and Q Calculator - Calculates inductance and Q for single-layer coils made of solid or Litz wire. Uses U.S. or metric dimensions. Can automatically maximize Q. Includes accuracy data. Runs in Windows.
    [ Hits: 255 | Votes: 0 | Rating: 0 ]
Technical Reference : Calculators
  • Single-layer Coil Inductance and Q Calculator - This calculator ask as input diameter, lenght turn and frequencu and will return L and Q
    [ Hits: 382 | Votes: 3 | Rating: 7.33 ]
  • Inductor Calculator - Calculate inductance online, with the cylindrical Coil Inductor Design Equations Formulas Calculator
    [ Hits: 278 | Votes: 1 | Rating: 1 ]
  • Air cored inductor calculator - Online calculator for Input coil data, LC Resonant Frequency and L match
    [ Hits: 473 | Votes: 2 | Rating: 1 ]
Technical Reference : Homebrew
  • Winding coils - winding coils for construction project
    [ Hits: 771 | Votes: 1 | Rating: 4 ]
Technical Reference : Test Equipment
  • Grip Dip Oscillator - Originally eveloped by I1FLC, uses seven plug in coils covering 3.0 to 30Mhz in a Colpitts oscillator circuit.
    [ Hits: 666 | Votes: 1 | Rating: 10 ]

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