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Since last week, I've been pondering the same; XM vs. ADS-B.
I did some flying out in the Gulf behind the last hurricane, inspecting platform damage. Normally, there is good radar and ADS-B coverage in the populated lease blocks, along with ZHU communication. There was none in the wake of the storm. The StrikeFinder paid for itself, along with the money spent to sync it to aircraft heading a bit earlier this year.
The patrols were five hours and it would have been nice to get a satellite picture at set intervals. I'm too far out for coastal radar coverage so that does not play into the consideration.
Can anyone comment on the XM satellite image products, do they have IR satellite images as well? I'm prepping before sunrise.
I'm also thinking about an HF radio.
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