Ahhhhhhh, but that's where you can be creative here. My AM1620 transmitter is just mounting in the garage, on the inside "A" point of the eves. The radiating antenna is about 12 inches short of 3 Meters in length, to compensate to feeding a 12 inch #8AWG from transmitter to the actual radiator, thus making it Part #15 FCC compliant. You may have other locations that can work, like the inside / outside eves of a tool shed. Passing thought, again... Not everyone can do this, (Including me, thus why I garaged-it.), but your house attic eves can be utilized the same, if you own your own house.