Having done many Antenna and Satellite TV installs over the years, I'd prefer direct buried only if it's Quad Shield
, but usually that's a bit pricey. Dual Shield is more prone to interference and never recommended for Satellite. I only use Quad Shield for Cable TV runs as well. If this is not buried, you need outdoor rated RG6 Quad Shield with compression F Type Connectors. I do like Belden Cables, but Parts Express don't have an outdoor rated Quad Shield.
This Audtek has a decent spec for $28 US:
Audtek RG-6/U Solid Copper 18 AWG Quad Shield CM Coax Cable 100 ft.
Don't worry if the cable is a bit long as the losses are much greater at the connection points (insertion losses) than an extra couple of feet. If you want to shield it from the weather, plastic pipe / conduit works great. The key to a good install is all about a continuous piece of cable with correctly installed compression type F connectors. I tend to use AquaTight
F connectors, but I'm a bit of a nut on these installs as I only like to do them once.
I hope this is helpful.