Recent content by Zapping

1.8m northwest Spain.

Unfortunately my location is not good for Ka band :-doh

I didn't have the skills or tools for a repair like this but I couldn't devalue your help here on forum and so I decided to get work. It wasn't easy, I bought a multimeter, a soldering iron, watched a few videos on youtube and started measuring voltages, initially the values were always 0 and...

Thanks for suggestions, the underside board looks bad but it's clean and apparently without any damage, those are age marks and part of them already existed when I bought Gilat. I'm going to dry the board in the sun (it's 40 degrees here) and tomorrow I'll try again but I don't have big hopes.

After a new careful cleaning nothing has changed, in these photos with better definition it is possible to observe that all the circuits + oscillator are in good condition except those two chokes that were completely burned, current probably doesn't pass from there. Did you succeed in...

Bad news my friends, unfortunately I think my adventure in the Ka band is over. Today my Ka-band stopped working, I went to the roof to see what was going on but everything was ok, I removed the lnb and I noticed that even though it was well insulated there was water in the F connector socket...

After seeing your setups I already have some good ideas to protect the lnb from the rain without raising the temperature, next time I go up to the roof I already know how to solve it.

I hadn't thought of that, a very rudimentary option but it seems extremely effective.

To waterproof the lnb I isolated the entire surface with cling film but I don't like the result, as it is very stuffy and without air circulation it makes the temperature rise in the hottest hours and the signal drops about 2 dBs. Is it necessary to insulate the whole surface or just the top...

First experiment done on the PF 180 antenna, initially with c120 feed but results were bad, back to the original scalar feed and surprisingly the result was much better, +2 dBs than 135cm offset antenna without changing anything on the Gilat. It was not expected that a scalar feed would...

Great job @dreamsat but what I questioned and I think @John was also referring to this, is the position of the pcb probe being in horizontal position and the OMT/aluminium case hole being in vertical position. Will there be improvements if the hole is enlarged to match with the pcb probe and...

c120 adapted or was it made from scratch? Is not but it might work, I'll test in the next few days. Interesting point of view about the waveguide twist, I had also noticed that the opening position did not coincide with the pcb probe, why was it built that way, is it better for circular...

Yes you are right, the best focal point is not the one I put in picture, I had to lift the feed a little and secure it with a clamp just for test, however the scan I show is maximum I can get with this dish, a beam coverage here is reduced. Has anyone tested it on a PF antenna with this scalar...

Update, lnb is not finalized but I already managed to do some tests, my location is not the best for Ka-band, only 7E is received with some quality, tests were done 7E and 16E with a 135cm motorized antenna in cloudy weather. Notes: Tbs card 6902 doesn't work for Ka band, I spent...

Ok so the socket F connection with board is done through one of the pins like this, right?