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clanon

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Everything posted by clanon

  1. Couldn't find any...(searching , i'm trying) Working on IMPEDANCE adapting...
  2. SQUARE works too (aluminum plate RIVETED)...leave at least 1 cm to dipole borders...(my GUESS)
  3. The DIAMETER of the container ...is too small (dipoles are leaning-contact with container) apparently...(Which would give a jumping signal as it is seen , high and low swr , s11, impedance and changing diagram of radiation)
  4. 700mm the one i'm working on...i'll tell you if it works all 8 mm tubes and double flat strip 15x2mm folded dipole and balun included (just put the cable tv in the antenna STRAIGHT)
  5. is a great design you can USE the length you want , taking directors OUT from the TIP back (reducing GAIN) the BALUN losses and bandwidth is of most importance
  6. VOVA it was ALREADY MADE by YURI
  7. so far i'm using Boom 15x15 square (1mm) tubing 8mm (1mm thick) DIPOLE 15 x 2 mm 12dbi could be achieve with 7 + 3 elements BANDWIDTH is the hard thing to achieve (More than 50mhz)
  8. This channels ? more or less...KANALs ...? if only TWO channels we need TWO dipoles if ALL channels only one dipole
  9. it promise more than 10 dbi (still working on it)
  10. How many elements...GAIN...? do you need and WHICH KANAL ? what tubes do you have?
  11. from 690 to 770 you could use a NORMAL tube dipole NOT FOLDED but TUNING the TUBE's diameter
  12. BALUN 1:1 if 50 ohms...needed (otherwise rf runs trough coax shield and resonance effects occur over cable shield) Pawsey stub (3cms) INNER CONDUCTOR NOT CONNECTED! QUARTER WAVE to FR center
  13. mobe pics to https://www.wifi-antennas.com/topic/1762-no-name-antenna-27-dbi/?page=2...i think
  14. Vars-cat 75 ohm model (HFSS) Padwing 1700-2700 MHz 75 Ohm.rar
  15. learn that...(the hard way)
  16. if you want more GAIN , new shape and area should be SIMULATED to see it doesn't harm the original specs...VSWR , Impedance , diagram (lobes) bandwidth ,etc Flat area plates are the safest to use
  17. Any FLAT plate are would do...the bigger the BETTER.
  18. http://www.electronicecircuits.com/electronic-software/parabola-calculator-for-satellite-dish-antenna-design
  19. It depends on the DISH , F/D ratio . offset or center feed...? you'll be trying to achieve 70% efficiency (illumination) or more if possible.
  20. This is more in your alley https://www.youtube.com/watch?v=xhW4QQruBTo