[NJARC] Why 455? (Again)

[Al Klase]

Gang,

Can anyone come up with a copy of FCC part 97.182 regulations some time 
around or shortly after "Radio Moving Day" in March 1941?

The current regulations say the following:

    (s) Two stations, one with a frequency
    twice of the other, should not
    be assigned in the same groundwave
    service area unless special precautions
    are taken to avoid interference from
    the second harmonic of the station operating
    on the lower frequency. Additionally,
    in selecting a frequency, consideration
    should be given to the fact
    that occasionally the frequency assignment
    of two stations in the same area
    may bear such a relation to the intermediate
    frequency of some broadcast
    receivers as to cause ''image'' interference,
    However, since this can usually
    be rectified by readjustment of the
    intermediate frequency of such receivers,
    the Commission, in general, will
    not take this kind of interference into
    consideration when authorizing stations.

I have reason to believe that earlier reg may help us better understand 
the 455 issue.

Thanks,
Al

-- 
Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/