Hi Eric,
may be error in schematic, may be in my head. :)
Please look on these new plots:
here is plot with s9-level signal from XG1 BEFORE replaced W16:
http://forum.cqham.ru/download.php?id=32057
and here is plot with s9-level signal from XG1 AFTER replaced W16:
http://forum.cqham.ru/download.php?id=32650
Please, any yours comments.
73!
Alex UR5LAM
Eric Swartz - WA6HHQ, Elecraft wrote:
The schematic is in error. It was found that the coax was unnecessary.
The levels of signals reported are not audible at greater than 50-60 dB
down from normal signals and do not impact our sensitivity spec.
73, Eric WA6HHQ
----
Barry N1EU wrote:
Alexander Ponomarenko-5 wrote:
In original K3 the W16 is monowire (on top of the RF-board),
but if we will analyze the scheme, we can see that W16 must be in the
screen.
The W16 are near non screen-shielded BP-Filters, and we can see
second RX-channel on my first web-link:
http://forum.cqham.ru/download.php?id=32620
You can get out monowire W16, and replace to new W16 (behind RF-board
in our opinion).
You must to use coaxial-cable for W16. I'm used silver-plated
screen-shielded video-cable from Supra.
Yes, that seems correct Alex.
The K3 schematic clearly shows that W16 is supposed to include a grounded
shield.
73,
Barry N1EU
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