AQH: You suggest that Bonneville did some research and knew what was going to happen with PPM before hand. That's interesting. Can you find one other example anywhere in the U.S. where a radio station switched frequencies or made a major format change on the very day that PPM started in their market? Wait, I'll answer that for you. No.
No one else has been foolish enough to make a major change without first getting at least a few weeks of PPM numbers. Stations pay huge dollars to Arbitron. They have to view that, partially, as research. So why make such a dramatic change without seeing first what that research is going to tell you.
You say that "the best signal in the Northwest doesn't matter to a listener." That's absurd. Try telling that to the people running KKOL or KRKO. And, yes, I understand the six-county metro and why counties outside those six are not included in the Seattle-Tacoma Arbitron ratings. Might I ask if you're familiar with the term DMA? Also, do you realize that a substantial number of people who work in the 6-county metro, live in a non-metro county. And many who live in one of the outlying 6 counties, work in non-metro counties.
There are plenty of places in the Seattle area where the 97.3 signal sounds better and the quality of broadcast is superior to 710 am. But 97.3 has plenty of multi-pathing issues and plenty of areas where it's difficult to receive the signal at all. To me, 710 am is a far superior signal.
And, of course, you also say that better ratings occured before PPM. Of course that's true, but the one thing NO ONE will ever know is how well KIRO would have done in PPM without the switch to FM.
Maybe KIRO would have suffered a little erosion or gone up a little or seen a dramatic cume increase. You know, similar to what happend to KGO, KDKA, WGN, WBAL, WIP, WABC, WBZ, KTRH, WJR or a few other big, heritage AM news or talk stations that did not go totally in the tank with PPM.
You suggest I find out the circumstances of Jane's departure before "acting tough." Didn't mean to sound tough, just factual. I know the circumstances.
You start your post by saying you can "shed general light" my way. Please let me know if you do that.