Hi Jack

I lived in an apartment for several years, NO ANTENNAS OF ANY KIND
ALLOWED. Inside or outside. They provided a TV antenna hookup,
lousy, but they provided it, so we couldn't even have rabbit ears.

Yet I had quite an antenna farm, and no one was the wiser about it.

Dipoles are fairly easy to disguise as something else. But I had a
160 meter dipole in plain sight and no one paid a bit of attention to
it. Only because of the steps I took previously to draw attention
away from it as an antenna, to something else, like a kite caught in a
tree and this was the string to it.
Antenna's in flower pots, and the coax to them inside of a garden
hose, etc.
Where there is a will, there is a way (and/or relatives), depending
upon the type of will, hi hi.....

The easiest antenna I installed inside, was simply using self-adhesive
copper foil, like aluminum burglar window foil, but only made of
copper. You can get this at almost any stained glass supplier.
Stick it to the ceiling, in the corners and then paint over it, it
becomes invisible. I caulked over mine lightly before painting.

I even made a little stationary mini-beam on one wall using this
copper foil. It couldn't be rotated, but it pointed in the direction
I needed it to, to hit a distant 6 meter repeater with my HT.
After I found out it worked so well, I spackled over it and repainted
the wall, it was completely invisible except for a BNC connector just
above the baseboard, which was easily removed when I moved.

TTUL
Gary