http://www.dailymotion.com/video/x3wrzo_fabrication-dune-lampe-triode_tech
enjoy this video...
73/72 de PA3HBB/G0BZF/PB6X
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Good Evening,
Two very good nets. Conditions were good tonight on both 20 and 40 meters.
I was able to drag in Kristinn at a 339 tonight with a little QSB. Noise on
both bands was way down. I only went outside after the second net to get a few
loads of wood to dry. It is getting dark ver
John,
That sounds like a leaky capacitor on the KNB2 board. The first ones to
suspect are the 0.1 uf caps with 0.1 inch lead spacing. I would suggest
arbitrarily replacing all of them as the first order of business.
It is strange that both TX and RX are affected because the KNB2 is only
in
All
The intermittent (cold rig only) problem cited below completely disappeared
upon removal of the NB and SSB boards (replacing them with the requisite
jumpers and the capacitor). The KSB2 board was put back first and the rig
still behaved perfectly. However, when the NB board was plugged bac
Having just fought through the same issue ...
Enter the CONFIG menu, select the FLx options, then press SUB.
Pressing SUB is the key to getting into the filter configuration
items for the KRX3. At that point, set the various frequencies
and gains ... don't for get to enable the appropriate f
Oms,
You may either use the K3 Utility program to set up your transmit filter
or you may use the K3 Config: Menu. The FLTX menu entry must be set for
each mode.
73,
Don W3FPR
py5eg wrote:
Hi Don
Thanks for being so fast.
Where can I pre-set the CW filter?
I have the 2,7 Khz, 1,8 , 1,0 and
Paul,
Looking at the Line Out with noise from an Elecraft N-Gen
indicates the K3 audio is quite dramatically band limited.
With the maximum DSP high cut frequency and the 13 KHz first
IF filter, broadband detected noise in either AM or SSB drops
45 dB between 4 KHz and 4.2 KHz with a furth
Hi Don
Thanks for being so fast.
Where can I pre-set the CW filter?
I have the 2,7 Khz, 1,8 , 1,0 and 0,4
73
Oms
-Mensagem original-
De: Don Wilhelm [mailto:[EMAIL PROTECTED]
Enviada em: Sunday, September 21, 2008 9:14 PM
Para: py5eg
Cc: elecraft@mailman.qth.net
Assunto: Re: [Elecraft] RO
What is the filter that you have configured for CW transmit? It must be
the 2.7 or 2.8 kHz filter.
73,
Don W3FPR
py5eg wrote:
Hi Folks:
I installed, 2,1 1,8 1.0 and 0,4 roofing filters on my K3.
It is working perfectly on SSB, but it is no working in the other modes
i.e CW.
Did I make s
My cover arrived a few days before the arrival of my (presently unopened,
pending arrival of the KRX3 module) K3. The cover was what I expected and
arrived here in NZ within 10 days of my order. Great service and a great
product.
John Powell. ZL1BHQ
_
Hi Folks:
I installed, 2,1 1,8 1.0 and 0,4 roofing filters on my K3.
It is working perfectly on SSB, but it is no working in the other modes
i.e CW.
Did I make something wrong?
Oms PY5EG
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Jack,
If I play two messages, the second one does not interrupt the first one. The
only problem is that there is no gap at all between two messages. I would
like to have the standard word gap between two messages.
Steef PA2A
K2 4654
K3 1184
- Original Message -
From: "Jack Trampler"
I might have missed something or this just might be a dumb question. How do
the filters I have in the KRX3 kick in, and how can they be accessed (other
than through CONFIG in SUB and the K3 Utility)? In other words, is it possible
to access KRX3 filters through XFIL? It looks like the KRX3 fi
That's why I question the applicability of a ringing test with a square
wave having a rise/fall time measured in nanoseconds, as the audio that
makes it through the K3's crystal and DSP will not remotely resemble that
waveform.
Agreed Jack, if the DSP and/or AF stages truly limit impulses thro
On Sun, 21 Sep 2008 13:31:00 -0400, Jack Smith wrote:
>Have you considered the difference between hitting a transformer with a
>fast rise / fast fall square wave and hitting it with one that is
>narrowly band limited?
That's one of the virtues of my measurement method -- it looks at the
respo
On Sun, Sep 21, 2008 at 9:13 AM, Charles Harpole <[EMAIL PROTECTED]> wrote:
>
> TMP cable 12" part #E850339.
>
> What is it for and why should I get it?
It is one of the cables used for the second receiver module, KRX3. If
you have the receiver module, you can start reading at page 22 of the
insta
Hello everyone!
The Flying Pig's monthly "Run For the Bacon" QRP CW contest is tonight!
This friendly, low pressure, 2 hour sprint runs from 9:00 to 11:00 PM Eastern
DST.
For all the details, please visit http://www.fpqrp.com/fpqrprun.php
The Flying Pigs QRP ARCI is now maintaining an archive
Hi Trevor, you should join us!
We discussed the merit (or otherwise) of opting to buy the LP-100
assembled and calibrated as opposed assembling and home calibrating one.
I opted for getting one assembled and calibrated and one of the other
net stations built his and calibrated it. We also ment
I just got my K3 (s/n 1662) up and running and I am still getting acquainted
with it. I loaded some simple messages into the CW Message buffers and upon
playing them back noticed an issue. If I try to chain two messages
together, while the first message is playing if I press the second M#
button
For the benifit of those who are still waiting:-
K3 serial number 1743
Ordered 19th May 08
Katiegram 11th September
Arrived 19th September exactly four months as predicted!
On air 20thSept.
Jim G4NWJ
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I just got it to work on 6 Meters.
I was not using the direct entry key.
Operator trouble.
Thanks,
Mike
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The band switch won't go above 30.000.00
You need to use BAND UP to go from 10 meter to 6 meter. You can't get
there by tuning a VFO.
73,
Lyle KK7P
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The band switch won't go above 30.000.00
Any suggestions?
Thanks,
Mike
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Have you considered the difference between hitting a transformer with a
fast rise / fast fall square wave and hitting it with one that is
narrowly band limited?
Ignoring for the moment the difference in filter shape between Gaussian
and the complex shape of the K3 crystal and DSP filters, the
Steve,
Setting up the K2 is about the same as setting up any other transceiver.
One must route the transceiver audio output to the soundcard line in, and
The soundcard line-out must be routed to the microphone jack AF input
pin - there normally needs to be an attenuator in the line, usually 10:1
Hello everyone,
I need some help from anyone who might be able to steer me through the process
of setting up my K2/100/KAT100 rig so I can do occasional digital QSOs with it.
Several years ago I successfully interconnected a couple of previous K2s (not
simultaneously, of course) with my Rigblas
On Sun, 21 Sep 2008 09:11:22 -0400, Paul Christensen wrote:
>the square-wave impulse response
>of the transformer becomes less meaningful.
As long as there is impulse noise, the square wave response of the
line out transformer is definitely relevant! As the folks at
Elecraft have noted, the pr
On Sat, 20 Sep 2008 20:25:51 -0500, Sandy wrote:
>When a high VSWR exists with a toroid ferrite balun due to a high inductive
>or capacitive reactance and the toroid begins to heat, the losses will rise
>to quite unacceptable losses and can possibly destroy the balun itself, even
>tough the tun
Absolutely, Don!
My main message was to watch the baluns for heating. During a contest or a
long winded transmission, you can really screw up a nice ferrite balun
QUICKER than one thinks.
73,
Sandy W5TVW
- Original Message -
From: "Don Wilhelm" <[EMAIL PROTECTED]>
To:
Sent: Satu
>Other "almost Elecraft" topics included power measurement and especially
>the LP-100 power meters that several of us use.
That sounds interesting - care to elaborate.
73 to all
Trevor G0KTN
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Y
What did Elecraft do to the radio at the factory Charly? Was it an early K3
that never had the < 400 serial number hardware upgrade - or something else?
[Elecraft] K3 AGC is better now
Charles Harpole k4vud at hotmail.com
Sat Sep 20 23:20:15 EDT 2008
Previous message: [Elecraft] K3 configurat
With my radio from the factory, I got a
TMP cable 12" part #E850339.
What is it for and why should I get it?
Thanks. 73
Charles Harpole
[EMAIL PROTECTED]
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The usefulness of the square-wave response plots (as you and I have
conducted) relies primarily on the complexity of the received waveform and
system bandwidth. Even in the case of a CW square-wave-like signal, a
gently sloping rise/decay time (e.g., raised-cosine CW waveform), greatly
reduces
I think I may have noticed another small bug in 2.38.
If you hold REV and adjust the frequency the release rev the new
frequency sticks in VFO B. But if you hold rev and adjust the filter
width then release REV that does not get copied into the VFO B area.
The only way to do this is to either swi
I now notice that in CW mode, on any band, switching from the 2.7K filter to
the 1.8K filter (xfil 2, xfil 3) shows no change in the passband filter graphic
(remains at a total width of one bar past the tic marks)? Adjusting the Width
control will change the graphic width. In SSB mode switching
Indeed, similar harmonic and IMD distortion are created inside the LINE
IN transformer. The question is their level and importance.
The LINE IN transformer, however, is fed by a 10:1 voltage divider, 604R
in series with 62R shunted across the transformer primary. This
arrangement provides a lo
Hi,
I did have a lot of fun with my K2, it's building process has been
watched by 40k+ hams on my
website www.qsl.netpa3cev and www.qsl.net/pa3cev/KPA100
Having less time for my hobby and a K3 on my desk I don't spent
enough time with it so after some
hesitation decided to sell it on eBay
Dave,
congrats to Your DXCC achieved using K2. Great job friend!
What's about DXCC using K2 only CW as next project ? :)
Good luck on the air...
73 - Petr, OK1RP
F. Reed wrote:
>
> Well, I am sure I am not the first one, nor the only one, but today I
> worked the last station I needed to ach
> Can anyone recommend the best menu setting for max discrimination among many
> callers at same time?
Start with Config menu: AGC SLP= 005 and then experiment with
different values. The lower the value (down to 0), the louder the
stronger signals will be. If you go too low, you risk overdrivin
Several stations were not available this week, the very pleasant weather
this weekend being more of an attraction than being indoors! Also some
were getting ready for travel to Jura for the MS0SCG week of operating.
Quite an interesting discussion took place over the use of SDR receivers
in v
A bunch of us are of the the Isle of Jura next week (operating Monday -
Sunday inclusive) to activate the island. Two K3's will be there so listen
out for us under the call MS0SCG and maybe portable also.
(plug complete)
73 Paul
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