Unsure on why the writer wants to use conduit. The "...removable (2 screw) caps at each bend..." sound like "house ells." RG-6 through these might be a close call, in terms of bending radius. Pick a cable, get the spec sheet and find the Min Bending Radius. Or skip the conduit and save money and aggravation.
There's not a Dish/Direct TV sat dish install in my neighborhood - and I'd wager anywhere in the US - that uses conduit for antenna lead in. For fastening, use a coax cable clamp, sized for cable model. It's got a nail on one side.
IMHO, based on decades ago experience, I'm not a fan of antenna preamps. More elements and maybe more elevation may be a better - though less elegant - approach.
There's not a Dish/Direct TV sat dish install in my neighborhood - and I'd wager anywhere in the US - that uses conduit for antenna lead in. For fastening, use a coax cable clamp, sized for cable model. It's got a nail on one side.
IMHO, based on decades ago experience, I'm not a fan of antenna preamps. More elements and maybe more elevation may be a better - though less elegant - approach.