This has some filter plots for various K3 filters:
http://www.nccc.cc/archived_meetings/pdf/K3%20Filters,%20Jan%202009.pdf
73,
Scott N9AA
On 7/26/15 3:28 PM, Joe Subich, W4TV wrote:
http://www.elecraft.com/K3/K3_filter_plots.htm does not list the
*INRAD* 500 Hz (or 1500 Hz) filter(s). Those filters are only
available directly from INRAD (http://www.inrad.net/home.php?cat=140)
- items 727 and 728.
73,
... Joe, W4TV
On 2015-07-26 3:06 PM, Wayne Burdick wrote:
There are accurate filter bandwidth plots on our website for each
filter.
Wayne
N6KR
On Jul 26, 2015, at 12:01 PM, "Joe Subich, W4TV" <[email protected]>
wrote:
Looking through the other rigs that use Inrad 8 pole filters in the
8 - 9 MHz range, those filters for which curves are shown have 6 dB
bandwidths in the 580 - 595 Hz range.
73,
... Joe, W4TV
On 2015-07-26 1:21 PM, Dick via Elecraft wrote:
Would anyone know the actual bandwidth of the Inrad Model 728
500hz 8-pole
filter? Such as, the 250hz 8-pole has an actual bandwidth of
370hz, and
the 400hz 8-pole filter has an actual bandwidth of 450hz. (no
graph is
shown for the Model 728 like it is for the others)
Thanks & 73,
Dick- K9OM
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