loop

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loop

495 links - and 9 categories

Antennas : 160M Antennas : 20M Antennas : 40M : 40 meter Magnetic Loop Antennas
  • K9FV 40 meters band loop - A Mississippi Style 40 meter magnetic loop made from available aluminum conduit, this antenna will not disappoint by Ken Holland, K9FV
    [ Hits: 14874 | Votes: 10 | Rating: 7.6 ]
Antennas : 80M
  • My 80 Meter Magnetic Loop  pop - A custom made 80 meter loop antenna. Reports on usage and tips to build the support.
    [ Hits: 26529 | Votes: 24 | Rating: 6.74 ]
  • 80 Meter vertical Loop - An 80 meter band vertical loop antenna setup
    [ Hits: 1345 | Votes: 0 | Rating: 0 ]
Antennas : Indoor Antennas : Loop
  • SkyWire horizontal loop antenna - A Wire resonant loop antenna for 160 meters band article by N4KC
    [ Hits: 1035 | Votes: 2 | Rating: 9.5 ]
  • Cheap antenna to make from 160m - 6m  pop - The antenna is nothing more than a simple 2.4 metre square loop drawing pinned to the internal brick wall of the spare bedroom. Yep, thats right, the inside wall of the spare bedroom - ideal for flat dwellers, hotel rooms or whinging neighbours, The loop has a simple switched inductance at the top of the square loop and uses a simple coaxial stub to tune the antenna. An additional variable capacitor placed across the feedpoint can be used to fine tune the resonance of the antenna, by Andy G0FTD
    [ Hits: 46498 | Votes: 28 | Rating: 7.61 ]
Antennas : Magnetic Loop
  • Quad loop antenna for 10 meters - A 27-28 Mhz quad loop antenna by Bernard Mourot F6BCU in french
    [ Hits: 1329 | Votes: 4 | Rating: 2 ]
  • Active Loop Converter for LF - Active Loop Converter for the LF Band by Lloyd Butler VK5BR originally published in Amateur Radio, July 2000)
    [ Hits: 1839 | Votes: 0 | Rating: 0 ]
  • A Magnetic Loop Antenna for Shortwave Listening (SWL) by KR1ST - A well documented plan to build a magnetic loop antenna for Shortwave Listening, includes photos and diagrams.
    [ Hits: 20619 | Votes: 24 | Rating: 8.42 ]
  • Wellbrook ALA 1530 active magnetic loop review - Interesting review about active magnetic loop antenna Wellbrook ALA 1530 and 330S by ON4SKY
    [ Hits: 3979 | Votes: 4 | Rating: 6.75 ]
  • A Small Loop Antenna for Forty Meters  pop - Article on a small magnetic loop antenna for forty meters band by Ben Smith
    [ Hits: 26855 | Votes: 8 | Rating: 5 ]
  • Thinking about Ideal Loops - Loop antennae have been used from ELF to UHF since the beginning of radiocommunications. At low frequencies, the main problem for loop antennae is to have enough sensitivity; the antenna being very small respect to the wavelength the collected energy is also small. To increase the output level the loop may be made resonant, so loosing it%u2019s intrinsic aperiodic characteristics.
    [ Hits: 2270 | Votes: 6 | Rating: 7.33 ]
Antennas : Shortwave
  • An easy loop for VLF - An easy VLF loop, 200Hz-20kHz reception without transformers by Renato Romero and Marco Bruno
    [ Hits: 7461 | Votes: 7 | Rating: 4.86 ]
Antennas : Theory Operating Modes : Longwave
  • VLF-LF And the Loop Aerial - The article discusses the theory of loop aerials for receiving and how they reduce the level of local noise. A Loop Aerial is described suitable for use on the LF and VLF bands together with a circuit of an interface loop tuner and preamplifier. The discussion extends to the problems of amplifier noise and the advantages of tuning the loop.
    [ Hits: 3422 | Votes: 5 | Rating: 5.4 ]
Technical Reference : Grounding
  • Grounding Concepts - What is ground?RF ground and the ground plane, how can I tell if I have a good ground? ground loops
    [ Hits: 2666 | Votes: 7 | Rating: 8.1 ]
  • Why grounding - Overvoltage protection, Voltage stabilization, Grounding in wiring, Ground wire resistance
    [ Hits: 1725 | Votes: 1 | Rating: 1 ]
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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