Ronnie,
Yes they do, but due to Covid-19 and short staffing, it may take a while.
If you did not direct your email to supp...@elecraft.com, it may take a
while to get it from one email address to another until it finally hits
support.
73,
Don W3FPR
On 5/19/2021 6:22 PM, Ronnie Hull wrote:
Does the Elecraft technical department ever answer emails?
W5SUM
Sent from my iPhone
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Post:
Matching 0.1% capacitors? What kind of a design is this that requires such
tolerances ? This make maintenance almost impossible.
George, W6GF
On Thursday, April 10, 2014 9:31 PM, Wayne Burdick n...@elecraft.com wrote:
Hi Phil,
The roofing filter module (KXFL3) is expensive for us to
Hi George,
Tight matching is required in the roofing filters because of their impact on
the I and Q receive channels. This is not unique to Elecraft's application. By
matching the gain and phase within the channels, we suppress image responses in
hardware, simplifying the task of the DSP after
Hi George,
This is a precision matched phase I-Q filter. Its a key component of the KX3s
excellent performance. No different than if you were ordering a precision
crystal as we use in the K3.
These parts are matched and selected here. We can supply matched sets if they
ever are needed. We
If all of your operating is casual chatting, on uncrowded bands, with poor
antennas, then the KXFL3 won't do much at all for you. Its primary function
is to prevent DSP overload from very strong, adjacent signals and you won't
experience that much if at all. If much of your operating is serious
I have a curiosity question. Why is the KXFL3 roofing filter an option on the
KX3? I mean, why is it not a built-in feature of the KX3? First, I already
own a KX3 with the KXFL3 filter so I am not asking this in order to choose to
buy or not. Caveat: I am also a neophyte (philistine,
Hi Phil,
The roofing filter module (KXFL3) is expensive for us to manufacture because of
the extremely tight tolerances on the capacitors (0.1% in some cases). They
have to be matched by hand.
We didn't want to pass this cost on to all KX3 users, since many of them don't
require the roofing
I figured cost was likely the main reason but then when I bought the KX3. I do
have another question on the KX3 but I need to study the technical aspects of
the question first and maybe I can answer it myself (it has to do with the
mixer).
phil
On Apr 10, 2014, at 8:02 AM, Wayne Burdick
Wayne,
So is the KX3's receiver performance as measured by Sherwood Engineering
with the optional filter?
Keith Ennis
--
View this message in context:
http://elecraft.365791.n2.nabble.com/Curious-why-is-KXFL3-roofing-filter-an-option-on-KX3-tp7586967p7586971.html
Sent from the Elecraft
He measured it both ways. Both numbers are in the chart.
Wayne
N6KR
On Apr 10, 2014, at 8:29 AM, XE3/K5ENS nela...@yahoo.com wrote:
Wayne,
So is the KX3's receiver performance as measured by Sherwood Engineering
with the optional filter?
Keith Ennis
--
View this message in
Hi Phil -
I've had my KX3 since Christmas of last year. Also have a fairly well
decked-out K3. My KX3 does NOT have the optional KXFL3 roofing filter. However,
in the time that I've had the KX3 and been able to compare it's receive
performance to that of the K3 - I have to say that I don't see
I'd not have the KX3 without that option. But
perhaps it would be just fine if not working CW.
Same with the K3: Some do buy it with only the
standard 2.7 KHz filter, and no CW filters.
Phil W7OX
On 4/10/14, 7:56 AM, Phil Hystad wrote:
I have a curiosity question. Why is the KXFL3 roofing
Jim,
I don't do a lot of contesting but often will reply to contesting stations if
they are DX or if they are from an unusual place for me (e.g. Rhode Island).
But, with DX, and in particular when a DX station is popular such as the
DXpeditions (e.g. TX6G) they will have a pileup (and, often
Phil,
I concur -- in my second reply to Wayne, I truncated the first sentence (I
think it was the first) and the result was not very meaningful. I had
originally written something like ...but then when I bought the KX3 I ignored
the price as I really wanted the KX3.
I cut that out because I
] On Behalf Of Igor Kosvin
Sent: Monday, January 03, 2011 4:24 PM
To: 'Kok Chen'
Cc: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] Curious phenomenon with doublet on 80m
Hi Chen,
I did connect dummy load tonight. With the dummy load the SWR at the
problematic region is fine, but I see different
With the dummy load the SWR at the
problematic region is fine, butat the problematic region the
top line alternates between 1.0-1 and -- and the bottom line reading
is very unstable - the power jumps randomly...
Sounds like there's a lookup table in memory with a piece of bad data in
Igor,
Double check to be certain the KAT3 is bypassed on that portion of the band.
Remember that the KAT3 segments the bands in order to provide greater
coverage after initially tuning with a given antenna.
73,
Don W3FPR
On 1/3/2011 1:30 AM, Igor Kosvin wrote:
Hello everybody,
Tonight I
reactance.
73,
Igor, N1YX
-Original Message-
From: Kok Chen [mailto:c...@mac.com]
Sent: Monday, January 03, 2011 2:02 AM
To: Igor Kosvin
Subject: Re: [Elecraft] Curious phenomenon with doublet on 80m
Hi Igor,
You are correct that you should try to see if the K3 will work properly
Wilhelm [mailto:w3...@embarqmail.com]
Sent: Monday, January 03, 2011 8:34 AM
To: Igor Kosvin
Cc: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] Curious phenomenon with doublet on 80m
Igor,
Double check to be certain the KAT3 is bypassed on that portion of the band.
Remember that the KAT3
Hello everybody,
Tonight I wanted to work station on 3504kHz but was not able to tune with K3
to transmit on that frequency. Here are the facts:
- The antenna is multi-band dipole, a.k.a Van Gorden or Doublet -
137ft dipole center fed with 450 Ohm ladder line.
- I do not use
Yes, of course. And verified the dummy load was working correctly with
an MFJ 259.
N5GE wrote:
Doug Person wrote:
Hi Folks,
Installing the KPA3 and KAT3 is pretty straight forward. That's why
I don't understand what's wrong. Looks like ANT1 and ANT2 are both
open. I can see the
I removed the KAT3 and reinstalled the KANT3. SWR now normal.
Doug -- K0DXV
At 22:59 07/27/2009, you wrote:
Hi Folks,
Installing the KPA3 and KAT3 is pretty straight forward. That's why I
don't understand what's wrong. Looks like ANT1 and ANT2 are both open.
I can see the leads
Hi Folks,
Installing the KPA3 and KAT3 is pretty straight forward. That's why I
don't understand what's wrong. Looks like ANT1 and ANT2 are both open.
I can see the leads physically connected in the right order to the
KAT3. The KAT3 is enabled in the menu, as is the KPA3. But when I
Doug Person wrote:
Hi Folks,
Installing the KPA3 and KAT3 is pretty straight forward. That's why I
don't understand what's wrong. Looks like ANT1 and ANT2 are both open.
I can see the leads physically connected in the right order to the
KAT3. The KAT3 is enabled in the menu, as is
Hello All;
I am a new K3/100 owner (sn 3045) and a relatively new ham. I come
from an art background so please forgive my ignorance.
I use my K3 mostly for soundcard digital and I've noticed something
peculiar. Wayne suggests setting the soundcard's outputs (Master
Wave) to 50% and use
Hello Eric!
I use my K3 mostly for soundcard digital and I've noticed something
peculiar. Wayne suggests setting the soundcard's outputs (Master
Wave) to 50% and use the Mic Gain to drive the output until either 4
bars of ALC show
Correct.
or the output power level is just below
Last weekend I took my K2 to the Huntsville Hamfest to help out with the
Elecraft booth there. I had a gel cell battery hooked up to it so folks
could twist knobs, push buttons and see what happened. Several folks
did. Today I turned the K2 on for the first time since then and
strangely I
Randy,
I would suggest that at some time or other, someone pressed the TUNE
button while they were exploring the operation of your K2 - in fact, it
may have happened several times. Pressing TUNE with something other
than your normal antenna will change the ATU settings.
Setting the menu
Hi
I have completed construction of an XV50, in fact I finished
it a while ago, and it all seems ok except for one thing. The
Tx power LED display only lights one at a time, even though I
have GRPH=BAR and OPT=PERF selected on the K2. It does the
same if GRPH=DOT is selected, too.
Is this
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