nowonder if it was a product (trade name) pushed by the Hooper service?
Hooper did not have electronic measurement.wonder if it was a product (trade name) pushed by the Hooper service?
The IF frequency is standardized in a super-het receiver (455 kHz). Before the days of shielding, you could pick up the IF frequency of the local oscillator and figure out what frequency the radio was tuned to.Elden Barr created the "Barrometer". These were the days of AM Radio, and relatively few AM stations in a market. Mr. Barr set up a special receiver in his vehicle and could determine how many radio receivers were on each frequency. He would move from location to location, count the blips, and publish the results. My understanding is that it worked fairly well. Someone else may remember exactly how Mr. Barr's equipment worked.
Because Seatown is obsessed with KING TV. As posted elsewhere in other threads; it amounts to a love/hate relationship.How did we go from IF frequencies on AM radios to KING TV?
I only have access to 1966 and beyond. In '66, KJR had an 11.4. The highest was a 16.5 in April/May of 1967 By 1970 it was down to an 11.9 in Fall.. I would hazard a guess that after 1963, KJR would have had significant ratings, as rock 'n' roll, surf music, girl groups, and rock 'n' roll began to predominate. I don't know what year KJR had 50-level ratings in Seattle, but I'm fairly sure it reached into Olympia during the day.
I tried to dig up some additional info on who held the copyright (ELDON CARROL BARR), but it's as if he didn't patent the device or the process as far as I could gather described by @bossbill earlier in the thread.The IF frequency is standardized in a super-het receiver (455 kHz). Before the days of shielding, you could pick up the IF frequency of the local oscillator and figure out what frequency the radio was tuned to.
The local press mentioned something like 50% of radios tuned to KJR, I think it was during one of the several articles that came out on Pat O' Day during the 80s and 90s. Maybe they were using a different system, or it was exaggerated, or one show only.I only have access to 1966 and beyond. In '66, KJR had an 11.4. The highest was a 16.5 in April/May of 1967 By 1970 it was down to an 11.9 in Fall.
There were no "single show" ratings back then. Arbitron did a two-month survey with different respondents each week, so for one show the sample was only 12% of the total, and definitely not enough to measure specific weeks or days.The local press mentioned something like 50% of radios tuned to KJR, I think it was during one of the several articles that came out on Pat O' Day during the 80s and 90s. Maybe they were using a different system, or it was exaggerated, or one show only.