Newbie Here Combine two motorised antennas

[Matthias]

TBH, even if you did manage to get these dishes working together you would only improve SNR by about 2dB. That might just about get you 100km further out of the footprint, but not more.

That's a pretty poor ratio over investment I guess. Although it was a nice mind puzzle, a reasonable budget here would have been 15k to 25k for an install that would help us cover another 200 to 300 miles off south, something like that.
Well, I think this idea is definitely doomed then I will have to run my magic somewhere else!
But it was anyway much interesting to get your input guys, and a good opportunity for me to learn more!
Thanks a lot!

 

[Vipersan]

Ah yes! I could have googled that one!

But then, about the LOs. Aren't they suppose to be particularly stable in frequency? Isn't it the whole point of a good quality LO? And if there is a slight shift in frequency, I'd expect it to be in a range admissible by the receiver, or?... Now if it is about the LOs of every antenna to be phased: I would guess that the frequently produced by the LO is ultimately based on the frequency of the grid powering the receiver that powers the LNB? If the grid is common and both install have pretty much the same characteristic (down to the length of cable to the LN, do we risk introducing such distortion, somewhere, that the signal would not be worth mixing? Hehe, I am not afraid of sounding too naive tonight, so I might as well ask all the questions that pop up in my head!

Cheers people!

..I swear I mentioned this at the beginning of the thread ..
Externally referenced LOs ...locked together from a common computer controlled source ..and super cooled for stability ..

 

[BlindFaith]

..you can't combine the IF signals. IMHO both RF-signals coming from the feeds should be combined be precisely phase adjusted wave guides and then fed to a LNA and the rest. The modulated signals will be added but not the noise.

 

[Matthias]

..I swear I mentioned this at the beginning of the thread ..

Yes... it did take me all the thread to completely understand what you said in the beginning ^^

 

[Analoguesat]

I think we have safely established its not possible on any sensible budget & that one of the bouquets on Badr 26E or Nilesat 7W is the way to go!

 

[Analoguesat]

Matthias, you mentioned your passengers missing Sky Sports earlier.

Would Sky Sports Italia via Hotbird 13E provide an acceptable substitute down the eastern end of the Med?

 

[Channel Hopper]

IMHO the only way to improve your current situation is a bigger dish or to super cool the lnb. which is again unknown territory for most on here on this hobby forum

Been there, done that, but curiously, the thread from six years ago is somewhere in the ether.

 

[Analoguesat]

This one CH:

http://www.satellites.co.uk/forums/threads/cooling-the-lnb.91244/