Side lobe interference with close dishes?

[brex2001]

I already have my C-band & Ku-band dishes up where I have a good LOS for my location (34.1N x 118W). The bottom edge of the 7.5ft Perfect 10 is 30+ inches away from the 36 inch offset Ku dish & 16 inches higher. Right now I don't appear to have any side lobe signal problems. I just acquired a 10ft Orbitron (got it for free - they really wanted it gone a year ago) to take the place of the 7.5 ft dish. 3 of the panels in the Orbitron are out of place - could've been worse.

Physically the10ft will clear the other just fine with about 15 inches between them.

Does anyone here have any suggestions concerning dish side lobe interference?

If they may be too close together I would move the easier of the 2 - the Ku dish of course.

 

[knowmiddlename]

I've never experience any significant coupling between dishes. Sometimes LNBF's can pick up TI, such as 2.4 GHz wireless telephones. I've experienced signal degradation from reflections from nearby objects, such as walls and vegetation. Your photos show an above ground installation which is ideal for minimizing reflections, but not so great for any potential TI.

 

[brex2001]

Yes I've already experienced TI with these dishes. Every other Friday morning the gardeners working next door make me aware of TI. Their hedge trimmer has a "leaky" ignition - but I don't think they would understand nor care if I explained it to them.
It was necessary to raise the dishes this high because of a row of ficus trees in the neighbors property(both sides to the south). Their landlord NEVER has had the trees trimmed.
They had overgrown the power line drops to our homes on my side until I cut them way down this past winter. They were so bad that I was concerned about snapping the drops in high winds.

 

[FaT Air]

I have a .7meter Offset Ku mounted to the lower edge of my BUD. works fine.

 

[brex2001]

I have a .7meter Offset Ku mounted to the lower edge of my BUD. works fine.

If your Ku is mounted to the lower edge then there's little to worry about a gap of 15 inches between mine.
Thanks!