From someone who is 37ish North...
I would definitely go 36" if it won't be a budget buster for you...
The Wineguard 30" is a pretty good item - and very much used here in San Jose. However some of my buddies say that it took a good 1-2 hours to get the best signal possible - and still when a few clouds move in the lower channels on G10R start to get the flaky effect...overcast with rain pretty much wiped out receiving that transponder...
I refered to online graphics noting dBs...signal spread...minimum required for audio signals and video signals...etc...noticed that a 36" would exceed the dB needed for video by 4-5. So I went with 36" and have not regretted it.
Just yesterday - the windy conditions knocked out my dish. I had to completely replumb everything and remount the dish and LNB arm. Had the lower channel transceiver locked in 2 minutes flat upon aiming with almost half a bar for signal quality on my viewsat.
As Iceberg noted in his "Tip of the Iceberg" thread - don't ignore LNB position and skew. It's amazing just how much of a difference it will make between an adequate signal and a good signal.
When I first installed - I could barely get the lower transponder. Then one evening, I pulled the LNB all the way back - and pushed the hanging body portion 5 degrees west and viola! Almost half a bar...
Lots of folks say that installing and aiming big dishes is harder because of their weight, mouting type and offset LNB. To be honest - I find it not to be difficult at all.
Having a significant other around to help with results monitoring certainly helps.
Good Luck!
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