The house probably makes a lot of difference to gain and pattern, and
also for other antenna types.

Modeling the house as part of ground might make sense, but there will
be lots of differences. Metal roof and sidings would turn the house
into a faraday cage. A wood frame house with no wiring and plumbing
may be almost like air.


Not that simple, like siding, is it RF connection tight or insulated slabs?
Millions of other questions, like you AC wiring, plumbing, coathangers, etc. If
you manage to model it, what are you going to do about it? Level it? :-)

We know houses are bad for antennas, sources of distortion and interference
from and to. If you are serious about serious antennas, you keep them away from
the houses. If you worry about dipole over the house, don't. Just put it up and
enjoy it. Modeling it won't help anything.

Modeling mobile antenna over particular type of vehicle can give us clues about
efficiency and pattern, but measuring it will be more accurate, consider the
current distribution in the loading coil and other effects in a real life time.


So if you worry about Inv Vee or dipole, just keep the ends as far away from
your appliances to minimize the RFI TVI. On HF don't worry about stupid silly
and irrelevant "RF Exposure Guidlines" on HF with typical ham setup.

73 Yuri, www.K3BU.us
www.computeradio.us - budding home of "Dream Radio One"