Ed K1EP wrote:
I think that that comment was taken out of context. In his talk, I believe
that he remarked that some xtals lacked quality control. I think it was
said or implied that both the manufacturing process and testing process
wasn't always perfect and that some xtals in the filters had
I think that that comment was taken out of context. In his talk, I believe
that he remarked that some xtals lacked quality control. I think it was
said or implied that both the manufacturing process and testing process
wasn't always perfect and that some xtals in the filters had some
contaminatio
K3KO wrote:
>
> It was good to see reported in one place that both the transmit and RX
> performance of rigs has gotten progressively worse, until recently.
>
I agree. However, it's hard to generalize on a downward trend of RX
performance - if you look at his numbers, RX dynamic range per
One thing stuck out. "Inserting filters in one direction in his testing for
some rigs resulted in an 8db difference relative to the opposite direction
in a performance parameter."
Are K3 filters properly polarized so this won't happen? Has the filter
technology improved so this isn't an issue?
Bill W4ZV wrote:
>
>
> Rob Sherwood's recent Boulder ARC presentation
>
> http://www.sherweng.com/
>
Some of Rob's best comments are in the discussion following the formal talk.
It will take a long time to listen to it all of but it's well worthwhile!
73, Bill
--
View this message in c
Rob Sherwood's recent Boulder ARC presentation, slides in .ppt or .pdf and
audio in .mp3, are now available on his website. This is a very good primer
for anyone interested in the above issues. Download both and you can view
the slides while listening to the audio.
http://www.sherweng.com/
73,
6 matches
Mail list logo
