[BC] Repacking the TV band

[Ron Youvan]

   James B. Potter wrote:

>> History of the 'bowtie' TV antenna: I once read that this ant was
>> designed as a rhombic
>>> It's a vertically stacked collinear.

> I'll have to ponder that one.  I am having a hard time picturing the bow-tie
> elements as a collinear array elements. ???.  I'll see if I can find the
> reference to that ant being a rhombic.  It came from an authoritative source
> as I recall, on the history of early TV development involving David Sarnoff,
> RCA-NBC, and the FCC concerning co- and adjacent channel separation on
> low-band in the New York and Philly markets.  That receiving antenna was
> credited as having some directionality to defend against the offending city
> and enhancing the desired transmitters.

   Bowtie receive antennas are not vertically stacked collinear, they are branch fed elements.
   (vertically stacked)
A lot of various branch fed antennas are called collinear by many, for some reason.
  Bowtie receive antennas are not related to the rhombic design.

-- 
Ron KA4INM