Very interesting project. Do you have any photos of the setup?
Why not leave it in the same thread so we can all follow along?
Ok, I definitely could do that too.I was thinking of the same thing, but I didn't want to get anyone all upset for making one long thread about several different things going on. I am hoping Spongella might find this thread interesting too, if he finds it.
Are you powering the lnbs with the manhattan? I use norsat plls on my BUD and they are power hungry (3420s are pll). I found that they work best with 20 volts DC. You may have better results using power inserters for each lnb. Add them after the switch because the current will toast a switch in short order. I'm using a 3120 but 3420 is similar, and I can lock a signal with 10% quality or less in some cases.
The more I think about it, the more convinced I am the Feedhorn is skewed around the wrong way; as Eugene at Geosatpro tried telling me over the phone. I will have to fix it later and see how the signals do.
That is an easy fix. Just reverse your switch settings. I haven't used an ortho feed, but it stands to reason that if one lnb is skewed straight up at true south (vert), the other will be horizontal.
This may be a good solution for lnb power. I would use one for each lnb (considering the cost of the lnbs the power inserters are cheap insurance for the lnbs and the receiver).
http://www.ebay.com/itm/151282736424?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT
Just swap the wires,either at the switch or the lnb's.The way you have it set now,the top lnb is the horizontal.If you look down the throat of the feed horn,you should see the probe (actually the antenna) of the top lnb is in the horizontal plane - .
Based on how you have it oriented in your picture.The plastic tube is the vertical probe that transfers the signal down to the bottom lnb,probe I,lnb antenna I.The signal for the top lnb goes straight thru the feed horn to the lnb antenna which, the way it's attached to the feed,is positioned like this -,so horizontal.
No,if you rotate 180 to put the bottom on the top you're exactly the same as you are now,polaritywise.If you want to change the polarities of the lnb's you need to turn it 90,so they are side by side not over and under.
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