I am currently putting together a base station rig similar to this and had an interesting conversation with Yaesu. First off, the radial kit is ONLY for 2m/70cm and has no grounding effect on the HF bands (or even 6m). Secondly, you need serious grounding in the form of metal flashing, copper plates or radials on the HF side to get it working well.
Here is my concern though. It has vertical polarization. Thats great for 6m+, but what about for HF? I was under the assumption that most HF is horizontally polarized. Although after reading some info on broadcast stations (WWV), those are vertically polarized.
Maybe someone could give a ham some advice? I don't mind throwing a UHF/VHF antenna on the house as well as a decent HF setup, but I sure would like to have the most versitile setup with 2 or 3 antennas. Personally, I don't have a problem running a simple dipole down the length of my roof and getting a decent antenna tuner to tune it for the various HF bands.
My main use at the house is currently UHF/VHF packet stuff (I am very interested in bouncing communications off of the ISS/Satellites), very basic HF DX (phone mainly, but some CW), and ARES/RACES. Thanks!