You might try expanding your product search to include the term DE9
rather than DB9. The E is the shell size and the electronics parts
world usually references it this way. Worth a try anyway.
John, kx4o
On 7/25/2015 9:33 AM, Raymond METZGER wrote:
connectors is too big. I looked at many
Skimmer info. This guy got it to work
Rake
.
Original message
From: Doug Ellmore d...@ellmore.net
Date: 07/24/2015 3:42 PM (GMT-08:00)
To: elecraft@mailman.qth.net
Subject: [Elecraft] Cwskimmer Bandwidth and more
Don,
cwskimmer settings allows up to 196khz.
I have
I just acquired a K2 again after years without one and wanted to order
one of the mic option boards from unpcbs.com. That particular board is
no longer available, but the website seems to indicate that there might
be a future run of the board. Unfortunately, there's no contact info at
the
here some are
http://www.ebay.com/itm/Lot10-Metalized-D-Sub-DB9pin-DE9-Shielded-Plastic-Hood-Cover-Housing-Shell-screw-/291511166355?hash=item43df6b6593
--
Live Long and Prosper
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Elecraft mailing list
Home:
Floyd,
I just did some snooping around their site and found this under contact
us, http://www.unpcbs.com/us/#contact.
Hope you find one. I built my K2 with both the unpcbs Rework Eliminator and
the IMA. Makes life a lot easier.
Gary
On Sun, Jul 26, 2015 at 5:35 AM, Floyd Sense fl...@k8ac.net
Hi everybody,
First, many thanks to George AI4VZ, Knut AB2TC, Harry NK9R, Jim K9YC and
Brian K3KO, for their prompt mails (five answers within 2 1/4 hours !).
Nobody told me that what I'm looking for does exist
I will adopt the Hands-on attitude and make my own DB9 connector, leaving
the
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 stock sideband filter.
73,
Bill - NA5DX
Good Morning,
Please join us this afternoon and evening.
14050 kHz at 2200z Sunday (3 PM PDT Sunday)
7045 kHz at 0100z Monday (6 PM PDT Sunday)
73,
Kevin. KD5ONS
-
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Elecraft mailing list
Home:
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).
It is also quite easy to make a reconfigurable microphone header yourself for
the K2. Go to
http://la3za.blogspot.no/p/la3za-unofficial-guide-to-elecraft-k2_28.html#KSB2
and search for 'microphone header' for ideas.
-
Sverre, LA3ZA
K2 #2198, K3 #3391,
LA3ZA Blog:
My understanding is that Skimmer allows greater then 24 kHz bandwidth
only in situations where the receiver is not tuned (fixed local
oscillator frequency). In the normal situation where it is monitoring
the IF output of a receiver, it is limited to 24 kHz.
You can fool Skimmer into thinking
The second letter in the connector name is the size. B size
connectors have room for 25 pins.
9 pin connectors are E size. DE9, not DB9.
Easier to find what you want if you use the right name.
73 -- Lynn
On 7/26/2015 9:29 AM, Raymond METZGER wrote:
Nobody told me that what I'm looking for
Unless you have a variety of microphones from various transceiver
manufacturers *and* like to swap microphones often, I don't see much
sense in the IMA. Just wire the K2 microphone jack for the Elecraft
configuration and re-wire the microphone plugs for that pinout.
OTOH, if you still have
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 li...@subich.com 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
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,
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
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
With the recent expansion of use to 630m for the K3s and upgraded K3
which only transmit at nom 1mw, a question arises:
Is there interest in a linear amplifier taking 1mw drive to produce
either 25w or 100w?
I pick those two power outputs because with typically inefficient
antennas on 630m
I have followed previous discussions on the memory editor issues (no support
for Mac, etc.) but I missed the answer to the big, big question.
The big question is: why is it that the existing Elecraft supported K3 and KX3
utilities do not include a memory editing page built in and supported as
On 07/26/2015 05:32 PM, Don Wilhelm wrote:
Soundcard sourced digital modes are really SSB signals and need a linear
amplifier.
The one exception might be FSK. It is constant-amplitude so a class C
amplifier should be fine.
FSK modes include RTTY and I believe WSPR and WSJT.
Alan N1AL
Do we run into the FCC external amplifier 15 dB gain limit here?
73 de dave
ab9ca/4
On 7/26/15 7:51 PM, Joe Subich, W4TV wrote:
Don,
WSPR, JT65 and JT9 are (1 of N tone) FSK modes. They are no
different than conventional AFSK (1 of 2) in that the tones
are continuous phase, constant
Hi Don and Alan,
I was thinking one of the slow multi tone FSK modes that are a single
tone at a time. WSQ is in the same class.
http://www.qsl.net/zl1bpu/SOFT/WSQ.htm
CW would be another mode that would not need a linear amp I think.
On the other hand PSK31 would require a linear amp.
73,
Umm ... JT65 is MFSK, 1 freq at a time, no different than FSK, just more than
2, 1 at a time. Should be constant envelope, my JT65 sure is on the scope as
is my RTTY signal. There may be some 2nd order effects, but Class C should
basically work.
73,
Fred K6DGW
Sparks, NV
Don Wilhelm
CW would be another mode that would not need a linear amp I think.
No, CW requires a linear amplifier. CW is not constant-amplitude - the
amplitude changes every time you open or close the key. A class-C
amplifier would mess up the key shaping, causing key clicks.
Any true FSK or MSK
My guess would be that a different program author wrote it... :)
--
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net
For MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
For Dopplergram information see:
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
Hi Tom,
It's convenient to think that, but it's wrong. The problem is that
neither of those signals are continuous -- both are changed to convey
information. Mother nature recognizes a keyed CW waveform as a square
wave modulating a carrier. Any waveform more complicated than a
continuous
Jim,
I disagree. The selected roofing filter is the first IF filter in a K3.
You might want to read what Eric and Wayne have to say on the subject at
the following link:
http://www.elecraft.com/K3/Roofing_Filters.htm
73,
Bill - NA5DX
*Jim Brown*jim at
I'd like to see a feature to save User settings to a file. Only those config
items that define the user preferences, not calibration stuff. This would allow
an owner of several K3 radios to set them up alike.
Also two TX EQ settings; one for front and one for rear.
Sent from my iPhone
Tom,
Soundcard sourced digital modes are really SSB signals and need a linear
amplifier.
73,
Don W3FPR
On 7/26/2015 8:25 PM, Tom Azlin W7SUA wrote:
Hi Ed.
I am more interested in a non-linear class C or higher amp for those
bands as was not thinking to run modes that need a linear amp.
Wes,
Rob Sherwood's presentation at the following link answers the why
question a lot better than I can:
http://www.sherweng.com/RochesterMN2009/NC0B-W0DXCC-4dRochester_MN.pdf
At the following link, Eric explains why selecting a narrow filter for
CW operation in a K3 offers superior
Agreed (but not meaningless)!
The additional narrow cw filters clearly provide a BIG improvement over the
wider SSB Filters(e.g., the 400 HZ filter shows a 16 db improvement in 3IMDDR
and 35 db improvement in BDR over the stock 2700 Hz SSB Filters). Meaning it
is very helpful to cw operators
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
Don,
WSPR, JT65 and JT9 are (1 of N tone) FSK modes. They are no
different than conventional AFSK (1 of 2) in that the tones
are continuous phase, constant amplitude and can be amplified
by a class C amplifier without generating undue IMD or clicks.
I haven't seen the details of WSQ yet - if
Not if you build your own is my understanding!
73, tom w7sua
On 7/26/2015 5:56 PM, dave wrote:
Do we run into the FCC external amplifier 15 dB gain limit here?
73 de dave
ab9ca/4
On 7/26/15 7:51 PM, Joe Subich, W4TV wrote:
Don,
WSPR, JT65 and JT9 are (1 of N tone) FSK modes. They are
On Jul 26, 2015, at 4:09 PM, David Cole d...@nk7z.net wrote:
My guess would be that a different program author wrote it... :)
—
Yes, a different program author wrote it but that does not stop Elecraft from
adding it to their utility programs which I think they should do.
73, phil, K7PEH
Combining the utility and memory editor is a good suggestion, but
Elecraft's owners would have to decide that it's worth the effort and
development cost. Since both functions are already available, it's
probably not a priority. Just a guess on my part.
73,
matt
W6NIA
On Sun, 26 Jul 2015
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
Hi Ed.
I am more interested in a non-linear class C or higher amp for those
bands as was not thinking to run modes that need a linear amp. WSPR, a
WSJT mode, WSQ, and the like.
73, tom w7sua
Chino Valley AZ
On 7/26/2015 1:23 PM, Edward R Cole wrote:
With the recent expansion of use to 630m
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