Welcome to WIFI Antennas

Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customize your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more! This message will be removed once you have signed in.

guest9999

Members
  • Content count

    7
  • Joined

  • Last visited

Community Reputation

1 Neutral

About guest9999

  • Rank
    Newbie
  1. Hi Guys! Yes it is good advice to place antenna high and without obstacles I agree. But I still think is something with connectors(like you said swarg_eu), tried to solve it and need to test more. For testing I used 3 antennas in the same spot a few cm from the window. They were directed at the same or similar spot. I used linux software linSSID, which has nice graphical representation of signal quality and min, max ranges. The adapter was Alpha NHA. The antennas were: Alpha 5-7 dBi omni directional stick, Alpha 7dBi directional one and 18-21 dBi directional square panel antenna. The omni directional stick performed the worse. Suprisingly 21 dBi one performed worse than 7 dBi directional. The 7 dBi directional was pretty good one. I get a lot of signals from different directions, much more than from 21 dBi one. If I point it in the same direction as wifi router is positioned in the house(different room, different floor) I get great signal quality, better than from 21 dBi one. In longer distances the quality varies. In some cases if I point panel 21 dBi antenna in the right direction the former wins, but not always. I am really suprised that if I point larger 21 dBi antenna from window to another neighbor house, which is 100m away without obstacles I get only 80 PWR tops on airodump or linSSID. I was expecting much better signal. 7 dBi panel antenna gives me 76 dBi tops and seems more consistent. The problem is most likely cable, however,.... I am still searching online stores to buy direct adapter so I wouldn't use any cable. I need male BNC from antenna and female SMA to adapter. It is almost impossible to find one, been searching it a lot. The problem is female RP SMA, beacause I can't find the right one, so I could screw the adapter on it, the thread has to be the opposite. I have been searching https://www.tme.eu/en/, but haven't found the right one. If someone posts a link to eu based store so I could buy the right one I would appreciate it!.
  2. Admin thx for the effort. At least I know the antenna is good. I don't understand that as well, I don't get it. I will buy adapter and try alfa nha directly on the antenna without the cable. I will buy one 12 dbi one as well and compare the results. I expected that that antenna would penetrate 1 wall in another direction as window so I would get signal from house near by. Or that if I use antenna in the attic I would detect ap signals from at least 1 km away, but I don't. 500-600 m at best.
  3. It is not super precise or always symmetric -1 mm error in some instances. Rectangles are 61 x 45 and not 60 x 45. Also backplate reflector is 410 mm.
  4. Hi! Here are the images. I tested the cable with multimeter, resistance is same, 0,5 for outer - outer part or inner - inner part seems good if I as amateur understand it. When I tested connected cable with antenna - outer part resistance readings seem good, but inner ones are out of normal as in images(exchange between 0 and 191.8). The connection between large connector on coaxical cable(inner part) and antenna could be the issue. I don't know.
  5. Here are specs from the manufacturer. It is 2.4 Ghz as Alfa Nha.
  6. Hi guys! I don't know what is wrong, could some of who are experts take some time and give me some info. I have Alfa NHA usb adapter. When I use Alfa directional 7dBi antenna(which is pretty small) as seen in photos I have ok range, works nicely, solved driver issues. I want more range, seems awesome to get more range and I bought 21 Dbi panel antenna(pretty large), 2.4 Hz range as in photos. The thing is I expected that there will be a lot of increase in range and was all excited. The thing is the range from the 21 dBi polish made yagi.pl panel antenna is in similar range as in smaller 7 dbi one, it works even worse I think. I don't get it. The coaxical cable is 3m long, the connectors were made by a guy who does that often. I don't understand why is the range so bad, is the design from polish antenna for 20-40 euros bad, or is the cable issue or am I expecting too much, do I need to calibrate it somewhow? The big 21 dBi antenna on the photos is 40cm x 40 cm. I hope someone will take some time to answer, I don't understand it. Thank you!