Hi all,
I found over there the Plots for the Elecraft filters
http://www.elecraft.com/K3/K3_filter_plots.htm
but KFL3A-200 is missing.
Is it possible to find somewhere the Plot also for this filter please?
Thank You,
73 - Petr, OK1RP
-
http://ok1rp.blogspot.com
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On 7/25/2015 1:47 PM, elecraft-requ...@mailman.qth.net wrote:
Message: 27
Date: Sat, 25 Jul 2015 11:04:20 -0700 (MST)
From: XE3/K5ENS via Elecraftelecraft@mailman.qth.net
To:elecraft@mailman.qth.net
Subject: Re: [Elecraft] 200 Hz 5-pole filter
Message-ID:1437847460881-7605322.p...@n2.nabble.com
On Sun,7/26/2015 5:33 PM, Bill Breeden wrote:
The point I am trying to make is that a K3 with a 2.7 KHz filter and
the DSP cranked down to 400 Hz will not perform as well for CW during
crowded band conditions as a K3 with a 400 Hz filter.
Hi Bill,
That point is not lost on anyone, and is
at
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/Sun Jul 26 18:12:45 EDT 2015/
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To: elecraft@mailman.qth.net
Sent: Sunday, July 26, 2015 2:02 PM
Subject: Re: [Elecraft] 200 Hz 5-pole filter
Since Sherwood's Dynamic Range Narrow Spaced measurement is of great
interest to CW operators, it only makes sense to make the measurement
using a CW filter, optional
On Sun,7/26/2015 2:02 PM, Bill Breeden wrote:
Since Sherwood's Dynamic Range Narrow Spaced measurement is of great
interest to CW operators, it only makes sense to make the measurement
using a CW filter, optional or not. The measurement would be
meaningless to CW operators if made using the
Why?
On 7/26/2015 2:02 PM, Bill Breeden wrote:
Since Sherwood's Dynamic Range Narrow Spaced measurement is of great interest
to CW operators, it only makes sense to make the measurement using a CW
filter, optional or not. The measurement would be meaningless to CW operators
if made using
Oh but Rob does.See the notes at the bottom of the page for his
Receiver Test Data. These reference p and q. These identify the
filters used. Elecraft states what are optional vs. standard filters.
*/p/* with 200 Hz 5-pole filter
/*q*/ with 400 Hz 8-pole filter
73 Bob, K4TAX
One can download the Sherwood list and save it to an EXCEL file. Then
sort it by your own choosing. The Sherwood list is presented on one
parameter only being dynamic range, narrow spaced. There's multiple
other parameters that make for a fine receiver.
73 Bob, K4TAX
On 7/25/2015 3:20 PM,
On 2015-07-25 2:04 PM, XE3/K5ENS via Elecraft wrote:
Apples and oranges.
Nonsense. The IMDDR3 of a conventional transceiver will improve
significantly if one turns on the attenuator. Reducing overall
input to the Flex series 6 to keep the level below the ADC limit
is no different than adding
That is not the Sherwood receiver list that everyone covets.
Taking this data the K3 would be about 11th or 12th on the list
with the stock 2.7hz filter.
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Sent from the Elecraft
Not in most cases, since turning on the attenuator significantly reduces the
MDS (sensitivity) of the RX. IMDDR3 is the difference between the input RX sig
levels that created the IMD and the MDS of the RX. It may increase IMDDR3
slightly, or even reduce it, depending on which RX stages go into
We're hoping to add the 200-Hz filter back to our product line as soon as
possible. Meanwhile, the 400-Hz and 250-Hz filters also do an excellent job.
As I've mentioned before, any radio with 2-kHz IMDDR3 numbers in the
100-dB-plus range is going to be a solid performer on the air. A dB here
No, and it's also from 2009, but that's not the point. The point is that
there isn't going to be much difference between the 250hz 8 pole filter
and the 200hz 5 pole filter. But think about your comment for a moment.
A stock K3 with no additional filters is that good enough to rank that
high.
Why are you talking about the Flex? I don't care where it is at on
Sherwood's list. I never plan to own one.
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Sent from the Elecraft mailing list archive at Nabble.com.
Take a look at Table 2 on the bottom of page 4 of this PDF:
http://www.elecraft.com/K3/k3_arrl_review_jan09.pdf
Scott N9AA
On 7/25/15 1:45 PM, XE3/K5ENS via Elecraft wrote:
That kinda voids Sherwood's no 2 ranking for the radio?
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Somehow what I like on the air, how it sounds, is
of more interest to me that what's in an xls file,
Bob. So I'm in accord with In any case, far too
many people are far too concerned about the
Sherwood rankings.
The data is interesting, but not of primary
interest -- to me.
73, Phil W7OX
Am looking for a K3, 200 Hz 5-pole filter since Elecraft no longer sells
them. Anyone out there have a spare?
73,
Dan - N3ND
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Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help:
I noticed this as well. Does anyone know why Elecraft has stopped
selling them? I was looking to put one in my sub-rx.
(Sorry I can't help you with your request, Dan)
73,
Scott N9AA
On 7/24/15 7:18 PM, Dan Atchison via Elecraft wrote:
Am looking for a K3, 200 Hz 5-pole filter since Elecraft no
This filter was my secret weapon when the going got tough-- especially
on 160/80/40 M during contests. Wonder if it will make a comeback.
The 250 Hz filter is really something like 350 Hz and really too wide at
times.
73 de Brian/K3KO
On 7/25/2015 0:08 AM, Scott Manthe wrote:
I noticed
Hi Scott,
I'm hoping we can offer them again in the future. We were looking at possible
design/manufacturing changes about the time we all got really busy with the K3S.
73,
Wayne
N6KR
On Jul 24, 2015, at 5:08 PM, Scott Manthe scott.man...@gmail.com wrote:
I noticed this as well. Does
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