[Elecraft] Flumoxed

[Dave Cole (NK7Z)]

I have one of the BWD-90 antennas up now, (at 25 feet), and use it for 
local contacts on HF daily...

DX is the vertical, soon to be a beam at 55 feet....  I also use the 
BWD-90 for all the WARC bands, save 30, which is the vertical.

I also have a new in the box BWD-90, (copper version, not the steel 
version), as well...

Works well with a K3, as the rig is atmospheric noise limited.

73s and thanks,
Dave (NK7Z/NNR0DC)
https://www.nk7z.net
ARRL Technical Specialist
ARRL Volunteer Examiner
ARRL OOC for Oregon

On 12/5/18 3:13 PM, Rose wrote:
> Was originally known as a T2FD ...
> 
> Savvy marketing by B & W ...
> 
> 73 !
> 
> K0PP
> 
> On Wed, Dec 5, 2018, 16:07 Fred Jensen <k6dgw at foothill.net wrote:
> 
>> Remember the B&W Wide-Band Folded Dipole, often found over National
>> Guard Armories, that's older than most of us?  Very broad band in the
>> middle of the HF spectrum, achieved with a 200 ohm [IIRC] resistor.
>> While no so good for hams, NG soldiers are not known for DX'ing and it
>> worked great for them over perhaps 4 or 5 working frequencies.  The
>> resistor burned half the power, and it also broadened the SWR curve
>> dramatically by swamping out the changing complex impedance at the
>> feedpoint.
>>
>> Incidentally, B&W was completely up front about how the antenna achieved
>> such a broad band response in contrast with the claims of the "miracle
>> antennas" advertised in the magazines.
>>
>> 73,
>> Fred ["Skip"] K6DGW
>> Sparks NV DM09dn
>> Washoe County
>>
>> On 12/5/2018 1:19 PM, N2TK, Tony wrote:
>>> A number of years ago, the SWR on my shunt fed tower kept getting wider
>> and
>>> flatter. The feedline buried hardline with an aluminum jacket.  The soil
>>> here in upstate NY had eaten away the aluminum and produced a goo. When I
>>> disconnected all the feedlines to the tower the shield on the 160M feed
>>> showed a high resistance.
>>> The shield of the other feedlines were providing the return path. So,
>> nice
>>> SWR but not a very efficient antenna.
>>> 73,
>>> N2TK, Tony
>>>
>>
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