nmoore6676 said:
David, I beg to differ, in fact the justification for the clear channels was for the coverage they provided to rural areas far from the cities they were centered in. In those days 50 thousand watts were not needed to cover even New York City.
The classes, clear, regional and local (Class IV) were the product of the reregulation in about 1934 and the preceeding regulation of about 1927. There had been very few high power stations prior to around the very late 30's, due to technology and the allocatons schemes of early radio.
The classes of channel became a de-facto segretation into three power levels based on the late 20's reallocations. The act that created what is today's FCC formalized it in 1934, and the final allocations were reset by NARBA in 1941-1942.
You can see the global and individual changes at
http://www.davidgleason.com/Radio_Archives.htm
When Powell Crosley and others sought to increase the power to 500 thousand watts it was touted as being able to provide broadcast coverage to the unserved rural communities. KFI (where the F I was for Farmer's Information) was one of those handful of stations seeking the power increase.
The Clear Channel Broadcasters Association included, I believe, all 25 of the 1 A Clears who continued appealing and filing till the final denial of superpower in 1967.
KFI had farm programs early in the monring for areas like the Coachella Valley and the orchards of San Fernando and the OC. Today, KFI is unlistenable in the Coachella Valley due to noise... but the point was that there was revenue in early morning farm shows. The rest of the day, KFI was an LA based network station, not a farm station. And Mr. Anthony, who also owned KECA (790 KABC today).
It was later that the idea of putting 250 and 500 watt AM stations on to serve "local communities" got really rolling
"Later" was the tail end of the 20's, where channels like 1310 and 1210 were limited, at first, to 100 watts. Everything we have today came out of the changes of the late 70's as refined in the thirties.
The FCC decided to allocate clears because they could never envision towns like Alpena or Bishop or Pagosa Springs having their own stations... in part because of the issues of network interconnection, an expensive and frail thing in those days. Clears were not just for farmers. They were for the tens of thousands of places like Lake City, Florida, that had no local radio and was not expected to.
This also gave rise to Gates Radio which specialized in transmitters for the low power market. The big transmitters were mostly engineered by companies like Western Electric, RCA and Westinghouse.
Gates specialized in gear for the independent and local station because there were more of them in the post year days. Gates realized much faster than RCA or Collins that there were only a couple of dozen 50 kw stations, while thousands of lower power stations were being licensed. Gates also designed boards and such for stations that did not form part of networks, and needed boards designed for lots of local originations and remotes. Anyone remember the NEMO keys on the old boards?