Hello Wayne:
>> Standard inmotion satelite dish like KLH tracvision is not compatible with Huges net?
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You must be sitting still for HughesNet to work -- or most other competing Internet Sat Systems.
>> Is it any harder to set up then a direct tv dish? same pricipal I assume?
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Same principal in that you must point to the correct bird -- but unlike DirecTV, the signal is both up and down. If the target for DirecTV was the diameter of a hula hoop, Internet birds would be the size of an orange. You also have to deal with Skew that is not required in a DTV setup. And finally, you must pass a "cross pol" test. Think of the target as a mail slot -- either vertical or horizontal -- and the signal as a letter that has to go thru the slot. According where you point from, the letter must be skewed to fit thru the slot.
>> How is bad weather performance?
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I have been using a sat dish for about 6 years and have never had a weather problem -- other than once in Reno. Heavy wet snow caused a short problem on the dish itself plus the heavy wet flakes flying around (see attached). Otherwise 24/7.
>> How well does the system work for someone who moves around a lot?
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Perfect -- that's the whole idea.
>> I have the need for a live Internet feed in the middle of the CA desert from time to time and wonder if this system would work well for me.
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As long as you can see the sky over Texas you can be on line anywhere in the US -- and parts of Canada or Mexico. So if not, that's a time when a Tripod set up works well vs. a roof mount. Ideally, one would have both. For a few bucks more, a used Tripod system can be had to keep just in case. The Modem would work for either.
If you decide to attend the RV Forum rally in Quartzsite in January, you would see at least 6 to 10 systems in our camping area from various Internet sat types including HughesNet -- in the middle of BLM desert with no hookups.
EDIT to add picture: The attached is a pic I took during that Reno stay. This was before the Tripod era of mounts. In those days we were mounting the dish with mounts designed for home roofs attached to a 2 by 4 piece of plywood. I would always ask for a park bench in an RV site so I could C clamp the plywood for dish setup and pointing. If I recall, my service was interrupted for about 1/2 hour due to this wet show.