Really, Emergency Broadcast System? You need to inform people watching Judge Judy at 2:30 in the afternoon to "avoid strenuous outdoor activity"?

Cable was installed this morning and is halfway working. There's not enough signal coming in on some frequencies. Looks like a big dead spot at 693-711 MHz, and also 555-567. If I remove every splitter and go straight from the pole tap to the DVR, the rest that I've tried come in fine. A couple channels right below each of those ranges are also very touchy, showing the difference between a split signal and a straight run the best. Of course I don't want to remove every splitter, and thus disconnect my modem and second TV, but I'll do it for diagnosis.

Now to do something with the information. And I won't be at home with as much spare time for another week.