[Antennas] BWD-90

[CBoone]

BWD is the design as the T2FD (Tilted,Terminated Folded Dipole). W8JK (Dr.
John Kraus, an antenna design expert) did a study on the BWD/T2FD antenna
years back.....below 10 MHz, the signal compared to a standard dipole is as
much as -10db!!!! If you plan to operate 80, 60, and 40 mtrs, the BWD is NOT
the antenna you want....A good open doublet fed with balanced line and a
tuner would be better....I have not dealt with the Alpha Delta but if there
is no resistor (as there IS in the BWD/T2FD antenna), then it probably is a
better antenna.

NOW the BWD does offer low SWR, lower rcv noise levels (due to the resistor)
and ease of operation with out a tuner...
But for best radiation eff, it is NOT the antenna you want.

Chris
WB5ITT  

> -----Original Message-----
> From: antennas-bounces at mailman.qth.net 
> [mailto:antennas-bounces at mailman.qth.net] On Behalf Of David 
> S. McCallum
> Sent: Tuesday, June 07, 2005 10:49 PM
> To: antennas at mailman.qth.net
> Subject: [Antennas] BWD-90
> 
> Any one have any comments on this Barker & Williamson Antenna 
> (BWD-90), good, bad,  to expensive, any comparison to the 
> Alpha Delta multi band antenna?etc etc. Thanks Mac