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aurel

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About aurel

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  1. I am in processof building your version with wires so i will see how this one work.. i hope better than mine !
  2. WOW jomy this dude is very intensive ....
  3. WOW super strong ??? looks like flying soucer UFO...maybe is out of this world
  4. What kind of amplifier is this ? If is used BFG65 as main transistor then maybe worth something .. but if are used anything else then ,,,is so so
  5. no ??? hmm as far as i know OPEN DIPOLE antenna have impedance from 50 to 75 ohm and CLOSED DIPOLE have 240 - 300 this one is OPEN DIPOLE
  6. Very good,very good I replace all biquads i have (3) with batwing because it gives better resulats.
  7. WOW 11dB ..that is very very good ..and the dimensions are ...in the image above or ?
  8. Yes i see that image before .. Jomy ..what is the distance of inner wire i assume 10mm ? id benter is on 30 mm
  9. Yes it is for 75 ohm..and i use 75 ohm cable
  10. Ok I can build this one again ..no problem ΕΎ BUT how you get 0.5 lambda that is 46 ...instead of 60 mm ? and how you get 0.6 lambda that is 59 mm --- 72 mm ? And joMy ..i found on several sites that is stated that batwing have only 3db gain so if mine have 5 that is better..he he ! I will try to build UHF TV version with aluminum wires to see how work as TV antenna with horizontal polarization !
  11. i tok image from here: http://ha5cfj.hu/dm2abk/25.2.4.html
  12. Ok i use it with reflector ok ..resized... Is that mean that sizes from old paper picture are wrong?
  13. So as suggestion ...anyone who wish to try remove your existing biquad from antenna and solder this element then check signal strength!
  14. Look I just calculate dimensions given from this old hungary site and my antenna in practice work very very good for vertical polarization even i read somewhere that this antenna is best for horizontal polarization and is not recommended for vertical. as i said before distance from AP is cca 400 m and signal strength is for 10% better than with ordinary biquad do you can explain that for me?