Seems the tropo has been pretty good and not stuck to below 1Ghz (which was just above the upper cell channels in the early days)...
Above 1GHz is mostly point to point microwave except for the PCS/new cell band around 1.9GHz....You would have to look at a FCC Table of allocations to grasp it all but in the higher spectrum lies several channels of Broadcast Aux Service (BAS) called Remote Pick Up (RPU)...these are what TV stations use for remote live shots in the field back to the studio.....
Needless to say, in a big market like Houston or Dallas, these channels are in use everyday...some stations have channels permanently assigned to them by the local frequency coordinator....
WELL, today, the local coordinator here got an email from the coordinator in Houston (who works at KPRC TV)....seems one of the channels has a constant signal on it that fades in and out of the RPU receivers mounted on the 2000ft towers in Missouri City....the RPU equipment use steerable dishes and off the tall towers, the signal was peaking when the dishes were pointed this way...
Also off a 750foot building top in west Houston (The San Felipe Bldg), the receiver there (shared) was showing the signal this way...
Now these units DONT transmit with LOTs of power like the main station signal...they may run 100watts or so and into a directional antenna, it can have 100x or more increase since the higher the freq, the more gain a dish will have..
AND they actually decoded the signal.....they saw a highway from the bottom to the center of the screen..and then a turn and what looked like a bridge....and at the bottom, a giveaway....a caption saying "
IP Casino Cam"..
YEP, the signal was coming from what was guessed a camera atop the LDL casino (Probably used by KPLC for traffic and wx; KFDM has one on top of the old Liberty-Pearl building with the other microwave dishes and sometimes a flag; thats the old GSU bldg and their telecom group is still there with the microwave dishes where fiber has not taken over).
The picture as seen could only be coming from the LDL rooftop and looking at the I-210 bridge; off the ...WHY it was pointing toward Houston and HOW it was making that far and actually watchable (true, the receiver is at ~2000ft and has no cable loss!) is outside of amazing!!!

FOX 26 in Houston was only "mildly annoyed"
