It's not true that once signals get through the xtal filter they cannot
be removed.
A DSP filter CAN remove them...after all, the FLEX radio works without
ANY roofing filter!
But DSP can only do it when fed with undistorted signals within the
range of its A to D converter. The circuitry
Hi all,
I am going to start setting up my K2 and will be using Spectrogram for
some of the steps. I downloaded ver 5.17 onto my laptop. Setup the
scan input page according to N0SS website. With no input the scan
input screen has the normal rise up to -20 then it dropes to -60.
Where it is
Like new LP-PAN, factory assembled and current serial number. also EMU 0202
sound card.
Complete with audio cables, software and documentation.
$240 plus shipping
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Mike,
Are you using the mic input or does your laptop have a line-in? You may
be seeing the baseline noise of your soundcard input - some are noisier
than others, and if you have an open input, that may be picking up noise
- Spectrogram will display that open circuit noise pickup. Short the
I have been mainly using HRD and PowerSDR/IF to tune my K2 the last few months.
This morning I reached over to tweak a signal and found the resistance on the
main tuning know was really tight. I use to be able to use the edge of my
finger
and almost spin the dial it was so free, but now it's
Sam, loosen the screws in the knob, pull it away from the face a bit
and re-tighten. The resistance is set by the felt washer behind it.
If that doesn't fix your problem, you have something else going on
that I don't know about.
Good Luck
73
Tom
W0EA
On Fri, Aug 7, 2009 at 7:42 AM, Sam
Good review of the flexibility of the K3, Don!
My K3 filter slots are all filled: 2.7, 2.1, 400, 250, and 200. Using
the K3 Utility, I can set the 250 Hz filter to kick in at a DSP
bandwidth of 300 Hz, 250 Hz, or 200 Hz. But with the upcoming firmware
upgrades, the flexibility will be
Sam,
That happens when some of the fuzz 'strings' from the felt washer gets
caught up in the slot on the encoder shaft.
Try to get it out with the tip of a knife or a needle, and believe me,
it is not an easy task. Worst case, if you can't get it out, you may
have to replace the encoder. Use
Don Wilhelm wrote:
Sam,
That happens when some of the fuzz 'strings' from the felt washer gets caught
up in the slot on the encoder shaft. Try to get it out with the tip of a
knife or a needle, and believe me, it is not an easy task. Worst case, if
you can't get it out, you may have to
Geoffrey, being brand new, I am sorting out less esoteric things in my
K3 and haven't tried to measure a filter intercept. But you can be quite
sure it is far, far higher than the second mixer so the finite filter
intercept with have no practical effect upon the in passband dynamic
range. So
Conway Reef is going to be up with 3D20CR in the first 10 days, or so,
of October 2009. The web site says:
3 Elecraft K2s and 3 Elecraft K3s.
http://www.conwayreef2009.de
73, Ken K3IU
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But with the upcoming firmware upgrades, the flexibility will be
enhanced, so I can make the 250 Hz filter kick in at, say 240 Hz,
if I want to. At least, that's my understanding of what's coming
up.
The beta firmware does not allow setting width in 10 Hz steps. Only
the center
LP-PAN, factory assembled, s/n 0273. EMU 0202 sound card with audio cables
$220 includes shipping, CONUS.
Please contact direct:
s...@leben.com
Sid
KC2EE
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It's not true that once signals get through the xtal filter
they cannot be removed. A DSP filter CAN remove them...after
all, the FLEX radio works without ANY roofing filter!
That's not true. Even the Flex will not be able to remove a
-50 dBm signal (S9 +20) and allow you to copy a -135
Joe Subich, W4TV-4 wrote:
Where the capability becomes noticeable is on SSB due to the
wide steps between 2.8 KHz and 1.5 KHz and in digital modes
with the step between 2.8 KHz and 400 Hz.
In digital modes it shouldn't be an issue because you don't, in theory, need
narrow filtering.
I had that problem with my K2 9 years ago, and solved it by carefully
tweezing the hairs out. Not cutting them, but finding the end of one and
then turning the encoder shaft so it unwound and came out. Quite a job but
it restored the original free-wheeling encoder action.
Then I soaked the inside
Hello,
I bought a used KAT100-1 (ROM 1.04). But the tuners is not working
korrekt. If I press the tune button some relays are making a lot of
noise, but the SWR is still bad. If I run the manual relay test in the
menu, the relays n1,n2,l1...l8 will not work.
But: If I turn the case upside
Sorry i mean K3.
Lars M.La2rra
Lars Midtboe wrote:
New on reflector and im exited waiting for my K3 :-) and studying
manuals...(at work at my ship..home in 2 weeks and will pick up my new K2)
Want to use my TL-922 with amp.buffer Arb-704 but hard to understand
manuals.
Any here
Hey Gang,
When I first started using the DSP in the K2 I thought I would probably
use the noise filter portion of it more than the bandwidth control.
As time has gone by however, I find myself more prone to use the
bandwidth as a pretty effectual way of reducing band noise.
So of late I've
What's the general consensus?
Is it logical to assume that a person's CW sending speed approximates
their copy speed?
I can't help but assume this, and so when I call CQ and get a return
caller sending at half the speed which I called or sending extreme
farnsworth, I almost always lower my speed
Dear Doug,
there Is a circuit board. And I did all the test you wrote. I flexed and
bent the board up with high force. I shacked It and I tried to jog the
relays. Nothing. And I resoldered most of the connections.
73 Holger, DL9HDA.
Holger,
I have no knowledge of that tuner. Is it built
O
... when I call CQ and get a return
caller sending at half the speed which I called or sending extreme
farnsworth, I almost always lower my speed in order to be considerate.
Sound like a good plan ...
Grant/NQ5T
__
Elecraft
I always match the other person's speed if he's sending slower than me.
If he's sending faster, I'll pick up the pace to match as long as it's
within my comfortable speed range.
On rare occasion I find operators who send much faster than they can copy
and ask me to QRS below their sending
Duane,
In my case I only use the K2 DSP AF filtering. That works all right.
The NR, no matter what settings I used, have never impressed me, nor
really helped improving signal quality.
73,
Arie PA3A
-Oorspronkelijk bericht-
Onderwerp: [Elecraft] K2: Your common usage of the DSP
Hey
dw wrote:
What's the general consensus?
Is it logical to assume that a person's CW sending speed approximates
their copy speed?
Not necessarily. I believe most people can receive CW faster than they
can send CW manually - keyer, bug or straight key. Although when they
first start the
brilliant.
Steve
N4LQ
n...@carolina.rr.com
- Original Message -
From: dw bw...@fastmail.fm
To: Elecraft_List elecraft@mailman.qth.net
Sent: Friday, August 07, 2009 12:26 PM
Subject: [Elecraft] Off-Topic: CW sending vs. recieving speed
What's the general consensus?
Is it logical to
Have you done the mod where you install the bigger L in the power leg to the
AF amp?
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Julian, G4ILO
Sent: Friday, August 07, 2009 8:17 AM
To: elecraft@mailman.qth.net
Subject:
I'm capable of sending much faster than I can reliably copy. So I find what
works best for me is I send slower to start off to try and get the other
person to match my speed. I'm sending much slower than I can but I send
slower so that I can copy. I find that 9 times out of 10 people answer me
Not sure I agree. I can send 25 WPM with a decent straight key and
30-35 with a good iambic paddle. However, I can only comfortably copy
15 WPM. I have a lot of trouble with stations that just need to send at
20 WPM. I just can't quite manage that speed.
Doug -- K0DXV
k8dd. wrote:
dw
Hi All--
A strangeness: on a couple of occasions, when turning on my K3 (FW
3.14) instead of the banner that I programmed with the K3 Utility, the
word FREQ appears in the VFO position. The only way I've been able to
remove it from the display is to turn off the radio and turn it back on
I have for sale a K-1 and a K-2/100 watt kit which I haven't had time to build.
both kits have all of the available options from Elecraft including toroid
wound
and tested by Mychael Morohovich (the toroid man).With the K-2 is the 100 w
external tuner and enclosure R-MH2 Mic. The kits are
Well, in my case it took a few years - and then around 35 wpm or so the
receiving speed passed the sending speed.
73HankK8DD
Doug Person wrote:
Not sure I agree. I can send 25 WPM with a decent straight key and
30-35 with a good iambic paddle. However, I can only comfortably copy
Is it logical to assume that a person's CW sending speed approximates
their copy speed?
Well, it's *logical* - that just doesn't always mean it's true. :)
After a long period of inactivity, my copy speed right now is about 10
wpm, but I can send considerably faster and I have to keep
The appropriate reaction is PSE QRS 10 WPM TNX OM
Ron AC7AC
-Original Message-
...I find that 9 times out of 10 people answer me
at considerably higher speed than I'm sending. Commonly I'll call at 10WPM
and get calls at 13 to 15 which is the difference between solid cpy and I'm
barely
Mike wrote:
I am going to start setting up my K2 and will be using Spectrogram for
some of the steps. I downloaded ver 5.17 onto my laptop. Setup the scan
input page according to N0SS website. With no input the scan input
screen has the normal rise up to -20 then it dropes to -60. Where it
I don't recall ever seeing that come up with 3.14
Try reinstalling the firmware. Or better yet, update it to the latest
release.
73 de James K2QI
On Fri, Aug 7, 2009 at 1:20 PM, Dick Roth, KA1OZ raro...@comcast.netwrote:
Hi All--
A strangeness: on a couple of occasions, when turning on my
I'd be very sad if you QRT in a QSO with me because you sped up above your
copy speed. Why not just tell the story as you did here?
Anyone worth chewing the rag with will get a chuckle out of it and be happy
to QRS.
Ron AC7AC
-Original Message-
After a long period of inactivity, my
Yea... Problem is that the usual answer to that is 73 GUD QSO HPE TO CUL.
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ron D'Eau Claire
Sent: Friday, August 07, 2009 11:01 AM
To: 'Elecraft_List'
Subject: Re: [Elecraft]
I sure can relate to that. I can send wonderful code at 25 WPM but
simply cannot copy anywhere near that.
I'm trying a new technique. I'm going to copy received code by typing
it on my computer. I can type an easy 60-70 WPM so I'm hoping that by
putting down the pencil and banging on the
Not always. Even if the Op who answers your call can copy high speed CW, he
might be replying at slow speed for some good reason such as echo on your
signal, which can make copy of high speed CW difficult, hoping that you will
slow down. At this latitude 56N multipath echo occurs quite
I have downloaded a lot of firmware in my K3 without any trouble whatsoever
until the last two firmware downloads where an issues has come up that I am
able to work around.
What happened this last time and is typical of the prior time is that MCU
03.25 loaded but DSP1 and DSP2 02.21 failed to
If you have trouble holding a steady sending speed
try tapping a heel or toe, as if you are a musician.
And, the should-be-obvious -don't- lay your arm
on the desk and only use your wrist to send. The
elbow should rest on the desk and the fingers on
the key's knob. The wrist acts as a
We've just added a link on our web page with additional information on
the August 15th ARRL S/W Santa Barbara Convention.
See:
http://www.elecraft.com/hamfests/2009__arrl_sw_santa_barbara.htm
If you can make it to the Hamfest next Saturday, bring your Elecraft
rig! (K3, K2, K1, KX1 etc.) We
Back then others reported great success replacing the felt
washer with a
leather washer cut from an old belt or other scrap leather
piece. No fuzz
and they said it provided great friction control.
Since the K3 uses similar felt washers for both VFOs, is it worth us
making this change now,
W7AAZ SAID:
It's not true that once signals get through the xtal filter
they cannot be removed. A DSP filter CAN remove them...after
all, the FLEX radio works without ANY roofing filter!
W4TV SAID
That's not true. Even the Flex will not be able to remove a
-50 dBm signal (S9 +20) and
Good question, Gary. Back in 2000 when my K2's encoder froze up I thought
Uh, oh! This is going to be a big issue! but apparently very few K2 owners
had any trouble at all. I was one of the few to report the issue. This
report by Sam is the first comment I can recall seeing in years. I'm sure
Hello Elecrafters,
Chad, W1CEG, and Scott WU2X have have just released PowerSDR/IF Stage
v1.19.0.1. This is the next version released after v0.92. There are
many changes here, too many to list. They are all documented on the
release/download page (link below).
However, one thing that isn't
For several years I kept a schedule with an old(er) friend (now SK) as I
mobiled to work each day. He could copy very high speed, but nearly
always sent around 25-30 WPM. I could never send as well as I could copy
when mobile, due to the car bouncing off potholes, other vehicles, etc.
;-) As
Hmmm .. I can't use my cell phone when driving through a school zone
here, even with a hands-free. I wonder if I could get away with
taking target practice at the little tykes walking to school while
sending mobile CW :-)
Grant/NQ5T
always sent around 25-30 WPM. I could never send as
since i had several screens going already , i found a little 7
VGA touchscreen for my LPPan sdr-IQ. use them both with a mini
circuits splitter...
\showing rocky for the lppan spectravue on the sdrIQ...both on the
same screen.
works grreat ,...
James Sarte wrote:
I don't recall ever seeing that come up with 3.14
Try reinstalling the firmware. Or better yet, update it to the latest
release.
73 de James K2QI
On Fri, Aug 7, 2009 at 1:20 PM, Dick Roth, KA1OZ raro...@comcast.net
mailto:raro...@comcast.net wrote:
Hi
I've never understood that line of thought.
Why would you take target practice at little tykes? That's unreal.
On the other hand people will talk on cell phones while driving and
people will pick up a microphone and talk on 2m. That's all ok. But
talk about talking on cw . You don't have
Just be happy it doesn't say FREAK.
Rob
NV5E
Date: Fri, 7 Aug 2009 17:04:18 -0400
From: raro...@comcast.net
To: k2qi@gmail.com
CC: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3: FREQ instead of banner
James Sarte wrote:
I don't recall
The elbow should rest on the desk and the fingers on the key's knob.
I couldn't disagree more! I have always taught as I was taught that the key
is at the edge of the desk and no part of your body touches the desk, except
perhaps the other hand. The forearm should be horizontal, sit up
Gary,
I have had the knob off many K2s, and only a few have a problem with the
felt washer. It seems if the felt washer is positioned around the nut
on the shaft, it stays there, but if it falls down when the knob is
placed on the shaft, then it may become a problem, or if the knob is
Ha, ha David. We're separated by more than a common language!
The first time I saw the form of sending you describe with the arm in
mid-air was about 10 years ago and I was astounded!
Here in the USA since the the military and so civilian services taught
everyone to lay their arm on the desk
Hi Duane:
Is it logical to assume that a person's CW sending speed approximates
their copy speed?
I can't help but assume this, and so when I call CQ and get a return
caller sending at half the speed which I called or sending extreme
farnsworth, I almost always lower my speed in order to be
The elbow should rest on the desk and the fingers on the key's
knob.
I couldn't disagree more! I have always taught as I was taught that
the key
is at the edge of the desk and no part of your body touches the
desk, except
perhaps the other hand. The forearm should be horizontal,
That's strange Ron because I was taught to keep my arm off the desk by my
father who was trained in the Marines for his duty as a radioman on B-17s and
B-24s in just this fashion. I have tried sending with my arm on the desk and
it tires me rapidly. He trained me around 1965 and thought
QRQ ?
:)
Kevin. KD5ONS
-Original Message-
From: Tom Hammond n...@embarqmail.com
Sent: Aug 7, 2009 6:45 PM
To: dw bw...@fastmail.fm, elecraft@mailman.qth.net
Subject: Re: [Elecraft] Off-Topic: CW sending vs. receiving speed
Hi Duane:
Is it logical to assume that a person's CW
True, Kevin. I knew some aircraft operators who did that flying B-29's and
B-50's. I worked on those aircraft at Lockheed in the 1950's as we refitted
them into weather ships.
I didn't think of them when I wrote the other message. Having served in the
40th Armored Division, I remember banging
Rick, K7MW wrote:
That is the difference between the American and British systems. As I
understand it, the British used this method, as I do, to avoid a
glass arm.
--
I was taught to place my arm on the table to avoid glass arm and it works.
I've transmitted
The difference between -135 dBm and -50 dBm is 85 dB. That's
within the envelope of DSP filter capability: it CAN separate
two signals 85 dB apart in amplitude if there is reasonable
frequency spacing between them. Choosing 50-100 Hz is NOT a
reasonable criterion (there's no
Thank you for responses. Units have been sold.
Sid
KC2EE
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Hi,
I have the following unbuilt - Elecraft K1 accessory kits from an Estate - they
have never been opened.
KAT1 - Auto-tuner with optional PRE-made Torroids for the kit $95 US
KFL1-4 - 4 band module kit with optional Pre-made Torroids for the kit $125 US
Shipping extra.
73 Mike
I recently built a W1. It worked fine both via the LEDs and remotely
via the puter. About a week ago the indicated output power dropped such
that it always shows less than 1.4w. The selected output on the K2 is
5w. My old analog 200w scale power meter still shows about 5w as it did
when
Does anyone have a good link Spectrogram Software? The link from the
Elecraft site and one other one I've found are under construction with
no links to the software.
TNX AGN
de
kd0r
David
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Dave
I was just looking for the same thing yesterday, and found it here
http://www.n0ss.net/spectrogram517.exe
enjoy
- Wim
-
Does anyone have a good link Spectrogram Software? The link from the
Elecraft site and one other one I've found are under
~
N2CQ QRP CONTEST CALENDAR
August 8 - Sep 8, 2009
~
Worked All ARCI Challenge (CW/Dig/Ph) QRP Event!
Aug 1 thru Dec 31
Info: http://www.qrparci.org/waac
I believe it's been discontinued. I downloaded the latest version
before they closed the website. You can download it at
www.n5na.net/download/gram16_setup.exe .
73,
Alan N5NA
David Heinsohn wrote:
Does anyone have a good link Spectrogram Software? The link from the
Elecraft site and
I fully agree. I'm fairly new (in comparison) at this. My sweet spot 18 wpm. If
the speed creeps up and we wander from the basics, I get in trouble quick.
Luckily I can't yet send much faster than I can receive.
73
David Wilburn
NM4M
--Original Message--
From: Ricky Robbins
Sender:
Aumein!
4x4kf
Michael
David Cutter wrote:
The elbow should rest on the desk and the fingers on the key's knob.
I couldn't disagree more! I have always taught as I was taught that the key
is at the edge of the desk and no part of your body touches the desk, except
perhaps the other hand.
Your inability to perceive the problem is (likely) directly proportional to the
years you have been doing code. ;)
I did code mobile for the first time recently. Coming back from dropping my son
off at Camp Lejeune. It was the New Eng. QSO party. My paddles were the
buttons on the mic of a
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