Wifi biquad antenna sale

Ensuring the bolts protruded only a nut width, and using 2 nuts behind and 2 nuts in front, secured the ground plane to the lower u-bolt. The antenna mounted on the pole, showing cable tie at the bottom as strain relief for the cable. The wire and steel disk were recycled.

Apart from the fact it works really well, no-one has yet popped on their lab-coat and done any high-brow tests on this 'homebrew twig', and of course manufacturers recommend you don't do anything which they don't recommend, or attach non-proprietary stuff to their stuff. Of course. Initial tests show that the antenna has a beamwidth of roughly 70 degrees in elevation vertical and azimuth horizontal planes, and 12 dB gain in the signal to noise ration over the pcmcia card.

Copyright c Psand Limited. Toggle navigation. Hacer Antenna Wifi Biquad Antenna. The original prototype shown is still in use two years later, and has survived severe storms. A semi-technical diagram of the biquad antenna Note - This antenna is for use with Construction The connector - N-type N-type socket round 'through bulkhead' came from R.

Soldering We worked out where the rear disc groundplane would sit when the N-type connector was affixed to it, and then both extending wires we cut so as to stand the 'bowtie' off the back plate by 18 mm. The 'bowtie' and N-type connector assembly, before fitting to the ground plane.

The ground plane We drew around a compact disc on to a sheet of galvanised steel about 1 mm thick - but none of use know our steel gauges - think it's 8 gauge - and marked the centre. Assembly We screwed the 'bowtie' and connector assembly into the hole in the ground plane, tightened it up with two spanners, and then carefully adjusted the 'bowtie' wire until the plane of the 'bowtie' was nicely parallel to the ground plane. Ensuring the bolts protruded only a nut width, and using 2 nuts behind and 2 nuts in front, secured the ground plane to the lower u-bolt The U-bolt assembly was clamped down hard on the bar, pointing in the required direction.

Print without changing scale and contour will be correct size on paper. Before you start to bend the wire, make it straight as you can. The more accurate you do the better as the analysis shows a huge impact in element dimensions. You must leave approx. Use spacers in each end of the element to strengthen its position and spacing proper height between the radiator and the reflector.

Martynas 24 October, Unknown 21 February, Ray 05 April, Nigel 21 July, Becir 20 March, Martynas 20 November, Newer Post Older Post Home. Subscribe to: Post Comments Atom. Simulation parameters for six antennas and averages. Wider is not recommended. Spacers in each end of the element to hold its position and spacing correct height between the radiator and the reflector.

Spacers must be from any non-metallic material. You can build bigger collectors with many elements on them and then link the elements together. You will need to do a search for larger bi-quads.

I am in the process of building a single biquad out of a dish I plan to mount the Alfa inside of the dish and USB out it's lower end into the laptop.

It stands on a modified tripod guitar stand. Though I expect that to be an overstatement, I still will be expecting to see most of the APs in my small city of k people so it should be pretty noisy.. I am also researching converting everything including my Alfa over to type F connections for universality.

I understand that 50 ohm is the RF standard so I figure 50 OHM connectors and a very short length of series coax cable will do the trick. I will report my findings in a few weeks.

I'd very much like to read your findings so make sure you post a link. I think all the long distance connections are set up rather than random finds. In other words the claimer is optimising both ends; maybe a high-power AP possibly with a dish at that end too and then searching only for that AP. I can get about 40 APs, in my street alone, with my current setup.

Time to cast the net wider. The minimum range I will accept is roughly about yards, but of course I'd like a few miles of range. Your suggestion makes perfect sense regarding both ends being dish equipped. I'd bet that the AP had a unidirectional amplified feed as well, and possibly from a higher elevation to a lower on a fair weathered day.

By TheGoodLife Follow. More by the author:. Did you make this project? Share it with us! I Made It! Remote Control Light Switch by alanmerritt in Arduino. JasonJ Question 2 years ago on Introduction. Answer Upvote. Reply Upvote. JoeT11 6 years ago on Introduction. One question. Can the N connectors be replaced with any other type of connector?