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clanon

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Everything posted by clanon

  1. Interesting design , don't know about performance... Polyurethane aluminum PATCHES Manufacturer
  2. A very well KNOWN DUAL band antenna 8dbi @2.4ghz 10dbi @5ghz You tube internals (Andrew)
  3. Did this with several rtl8187b with GREAT RESULTS (even better than a tp link722) MiniPCIe to USB adaptation PS: Make sure you have this two -D +D on the card (some cards don't have'em!)
  4. MikroTik QRT 5 is a dual-polarization 5 GHz microstrip panel antenna with a gain specified up to 24 dBi and integrated radio at just 31×32×5 cm size The plastic case looks quite robust and UV resistant. The microstrip antenna array inside consists of 64 elements (8×8), which result in 10.5° beamwidth (-3 dB). There is also a MikroTik RB911G-5HPnD-QRT board, which features a 2×2 MIMO 802.11an radio (AR9342 SoC) with 30 dBm tx power. The antenna is connected with two short MMCX pigtails.
  5. Jomy , NEED HELP this SUCKER doesn't take energy , Z is wrong (Too LOW) S11 (too LOW) almost 0 Vswr HIGH as HELL (PS: tried everything can't make it "dance")
  6. manufacturer site
  7. Originally designed for 5.8 (with HIGH LOSSES and low gain) Inverse engineered to 2,4 ghz wjith High GAIN and Better Efficiency s on FR4 ...modelling right now...almost there...Close to 20dbi
  8. I'd never found a good feed for DEEP DISHES ( i have a 1,26 m , 0.31 m deep dish F/d 0.25 ) THIS IS IT This brasilian colleague designed an small patch for 432 MHZ satélite double polarization (i only needed ONE) What's most important to me are the 180 degrees of illumination at about -6 db of gain... -6dB beamwidth of around 180 deg (good for f/D ratios 0.25 (focal plane dishes) to 0.3) -6dB in beamwidth corresponds to a -10dB edge illumination (max gain) since there is an additional -4dB spreading loss to the edge at these low f/D ratios. the coax is running inside a graphite tube (all i have at hand from a broken arrow) center of patch and coming back from behind
  9. https://youtu.be/iOmdQnIlnRo?t=924 ,,,why it doesn't work..??
  10. 2,1 mts diameter , i assume
  11. Up to 9 dBi gain between 1710 and 2700 MHz, and 6 dBi gain between 600 MHz and 900 MHz. +/- 45 degreee cross-polarization. https://www.youtube.com/watch?v=vm4hV1ITrp0
  12. something is OFF , i think it is SPILLING signal OUTSIDE the dish , maybe with some wall side box...or a RIM...
  13. Originally for wimax 3.5 ghz (it SHOULD be more than 18dbi) (circular Polarization) Trying to rebuilt it for 2.4 ghz PS: doubts about the Dielectric material...(rexolite , fiber glass...?) very similar to http://Ionica 19 db , 3.5 ghz
  14. MOVE ALL up FRONT (directors) Extend Boom tube to allow extra length
  15. 18dbi
  16. OKAY , just talking about THIS (more info)
  17. Distances to FIRST director and to REFLECTOR MUST be reviewed! CAN't OPEN it ( NEWER version)
  18. what happens if the FOLDED dipole is HORIZONTAL ?
  19. INTEGRAL is FAST , BUT you have to check accuracy tHE ONLY ONE THAT WORKED ON 1,26 MTS DISH
  20. ALWAYS FD solver shows a SHIFT in RESONANCE center and POORER S11...(but it is RECOMMENDED for WIRES)
  21. The original FEED is for a 6' 7' 1,8mts 2.1 mts diameter GRILL Parabolic Antenna F/d ratio is important (te indica el tipo de iluminación necesaria par eficiencia mayor a: digamos 70 % , que es lo que se busca como objetivo) Having the original feed wouldn't be better to copy the original GRILL
  22. more info
  23. Harry HOW can i put the settings from 1 ? on VSWR...is from zero default
  24. UHF yagis