Signals that high in frequency are prone to reacting a little like light, reflecting here, shadowed there. You may find moving around will improve incoming signals.
I'm in kind of a radio dead spot and on my old cell phone, before the latest and greatest technology became mandatory, I used to have to slowly wave my cell phone around, up high, so it would grab a signal, then it would hold onto it while I made my call.
My new 4G one is consistently 3 bars signal strength here at the house.
I'm also exclusively on Over The Air (OTA) for television entertainment, and my reception is dependent on how wet or snow-laden the pine trees right outside my apartment are. It's also somewhat dependent on them waving around in strong winds.
Again, reflections and absorptions of the TV signals were very evident.
We're used to electromagnetic (radio) signals being kind of ubiquitous, but the higher you get in frequency, the more they start acting a little like light. They can even be concentrated like light in a parabolic mirror:
This ^ is a "telescope."
Terry, 230RN
Pic credit in properties