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St. Louis Broadcasters Utilize Dielectric's HDFMVee
Antenna for Digital and Analog Broadcasts
October 30, 2007
Source: Dielectric Communications
Dielectric Communications,
a leading provider of high-power broadcast antennas, has announced
that broadcasters in the St. Louis region are now using the
company's HDFMVee antenna, along with Dielectric's RF combining
system and transmission line, to broadcast 10 analog and 10
digital FM radio stations throughout the St. Louis metropolitan
area.
"The signal for KSLZ, KLOU, and KSD has never been better
than it is right now with the Dielectric combiner and FMVee
antenna. Clear Channel – St. Louis is proud to be broadcasting
our analog and HD signals using this new system, and our testing
has shown that it is performing extremely well," said
Daryl McQuinn, director of engineering and IT for Clear Channel
Radio – St. Louis.
Dielectric's HDFMVee antenna is a high-power master FM antenna
that offers broadcasters a top-mounted circularly polarized
(CP) solution specifically geared toward analog and digital
operations.
The HDFMVee is capable of handling an average of 250 kW of
signal power. The CP antenna pole configuration minimizes
wind load while allowing for greater signal penetration into
difficult reception areas. Additionally, the feed system resides
within the pole, helping to protect the HDFMVee from severe
weather.
The HDFMVee's unique radiator design employs the proprietary
TQT Technology developed by Dielectric – SPX. By virtually
eliminating cross-couplings within the radiator and mutual
couplings between bays, the TQT Technology allows broadcasters
to air multiple analog and digital stations from the same
antenna. This feature enables over 30 dB of isolation for
both the analog and digital antenna inputs across the entire
FM band without the aid of an isolator or circulator and VSWR
less than 1.1:1.
More than 20 analog and digital signals can be combined on
the antenna, with virtually no interference. Covering the
full 88-MHz to 108-MHz FM bandwidth, the HDFMVee antenna features
a VSWR of 1.1:1.0 or less for both analog and digital inputs
across the full band.
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