In my wife's case, she had a propane grill on the patio and mounted the antenna to the grill. Just remember not to cook and transmit at the same time. One hundred watts can really tingle when you are flipping burgers. Prior to trying to use these, first check to see if you have a resistance path to ground. If, however, you don't see any resistance to ground, give it a try and slowly increase your power.
Apartment complexes are funny when it comes to appliances.
This did not make him many friends. This reduced-space antenna has the advantage of being somewhat directional. Mark the tape every half-inch from the outside edges. You have now made a form for the antenna. Using small-gauge enameled wire, start at the bottom of the door.