Your right they don't but as long as DTV and the HSP determins
that it is ok then I am ok with it.
Back in the day when you use to buy the system threw Radio Shack they use to come with these little dinky 4ft rods w/aluminium ground wire.
Now i would would fail al site for re-useing one of those but a 6 or 8' coppper clad i will hook to those all day long