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  1. Today
  2. I think this is the adaptation more clearly seen....
  3. ramses.vr1996@gmail.com joined the community
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  5. Last week
  6. ferhane joined the community
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  9. LOL ! NO WAY (no my cup of tea) but that Russian feed POSTS YOU KNOW IT WELL...(LPDA or Vivaldi would be easier to do and tune)
  10. ,,,,okay, now you can do a simulation...!!!
  11. Feeding posts...(3 Of them and shield)

  12. Antennas for Drones

    Wojciechowski replied to Admin's topic in Modeling antennas

    It must also be 25 degrees outward at the ends of the arms facing downward.
  13. ,,,that's clearer...???
  14. Double Bow Tie , How is fed ? (the coax braid to reflector UNBALANCED)

  15. WiFi/LTE antenna BDM-2

    clanon replied to Admin's topic in Antennas for mobile communications

    the coax BRAIDS wires have to be FIXXED by soldering , creating a solder washer and then you can add screws and a washer to FIX IT to the main reflector (it shouldn't MOVE !)
  16. Xuan joined the community
  17. Normanmah joined the community
  18. ,,,it could be something like this...

  19. WiFi/LTE antenna BDM-2

    DavidER replied to Admin's topic in Antennas for mobile communications

    How to lengthen?
  20. GilBrToN joined the community
  21. Astra joined the community
  22. Ahmed27 joined the community
  23. This antenna is similar to this one... ,,,but of poorer quality...!!!!
  24. 900mhz
  25. Earlier
  26. Great gain if true...
  27. VSWR (kroks) Gain 1800
  28. The KP15-750/2900 broadband (multi-band) directional panel antenna with a gain of 15 dBi is recommended for use with 3G/4G/YOTA modems, Wi-Fi routers, GSM 900/GSM 1800/3G/4G cellular communication amplifiers (repeaters), and other equipment operating in the 750-2900 MHz frequency range (radio communication systems, GSM alarms, etc.). The antenna is designed to work in wireless communication networks with equipment of the following standards: 2G (EDGE, GPRS on GSM 900 and GSM 1800 frequencies); 3G (UMTS 900, UMTS 2100); 4G (LTE 800, LTE 1800, LTE 2100, LTE 2300, LTE 2600), YOTA; WI-FI 2400 (IEEE 802.11b, g, n). Dimensions, weight, and quantity of the product in the package: Dimensions of individual packaging (length, width, height), mm 250 x 250 x 100 Weight in individual packaging, grams 1400 Antennas-characteristics : Operating frequency range, MHz 790-960 ,1700-2700 Antenna gain, dBi 8-15 VSWR in the operating frequency range, no more than 1.6 Polarisation Vertical Wave resistance, Ohms 50 (N connector) -75 (F connector) Maximum input power, W 10 Connector N- female F- female Allowable wind load, m/s 30 Operating temperature range, oC -40 ... +90 Maximum permissible air humidity, % 100 Communication Standard -Multi-band

  29. WiFi/LTE antenna BDM-2

    clanon replied to Admin's topic in Antennas for mobile communications

    copper wire same diameter...i dunno if the dielectric is needed...
  30. DavidER,the central pin can be extended...!!!!

  31. WiFi/LTE antenna BDM-2

    DavidER replied to Admin's topic in Antennas for mobile communications

    What kind of connector is this if the distance is 16mm?
  32. prevalrey started following WiFi/LTE antenna BDM-2

  33. WiFi/LTE antenna BDM-2

    prevalrey replied to Admin's topic in Antennas for mobile communications

    Buenas noches hermano disculpa, la molestia pero era para saber si le habías dedicado tiempo al plano que te pedi de 2100mhz y 1800mhz de 10 discos. Perdona que te escriba pero era para saber si me guío por tu plano o hago otro
  34. Ye Lay started following Admin
  35. If noise is fix you increase SIGNAL = GAIN ...(adding directivity will also lower Noise from out of the main lobe signals) a bigger reflector might be enough
  36. If your SINR is quite decent,you can use a small 0.55 dish with an irradiator, as the signal strength allows. As for the speed instability, it largely depends on the provider and the load on the base station. The more users connected to the tower, the slower the speed.
  37. How should an antenna be designed to increase SINR values?

  38. N78 Antenna

    clanon replied to papagayor's topic in Antennas for 2.4 GHz band

    5G not available or not registered...so it might be just on 4G...(which has a practical limit close to 100MBPS)

  39. N78 Antenna

    papagayor replied to papagayor's topic in Antennas for 2.4 GHz band

    IMAGES https://drive.google.com/drive/folders/1oHy7-YtNA768eqKI5IKLTqeyZlM0sgAL?usp=sharing

  40. N78 Antenna

    papagayor replied to papagayor's topic in Antennas for 2.4 GHz band

    Made one based on Admin's suggestion, from scarp metal that had, not attached yet on a parabolic disk, but seems to work good. Without antenna Ookla Speedtest was about 45-60Kbps, after over 80Mbps, testing from PC's ethernet connection, testing from mobile closed to router was over 100Mbps. Even it is made with bad stuff like thin simple wires and not good soldering as I didn't have some quality materials (I order some from Ali and waiting to go on for a new one), results are enough satisfying. But I don't understand why router shows "red" light and not "green" as it should if signal is good, suppose it is from speedtest, any explanation please or any suggestions? Thank you.
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