I have a question about PSK31, sound cards and the K3.
I am currently set up to use my K3 with the LP-Pan for a pandapter
spectrum display on computer. I am currently using a separate USB sound
card (E-Mu 0202) as the sound card for this interface.
Someone told me that using the same
On Apr 4, 2010, at 11:22 PM, George A. Thornton wrote:
It has been recommended to me that I get the SignaLink USB interface
because it is easy to work with and reliable.
The SignaLink USB contains two functions:
(a) a 16-bit sound card (Burr-Brown 2909 chip) and
(b) an audio activated
Phil...
You can find the status of the COM port by going into Device
Manager. The way to this confection depends a bit on what version of
Windows you are using.
In the more recent Windows versions (WIN 7, Vista...), right-click
on Computer then left-click on Manage -- after a few
I agree with Chen on all points. For information's sake, I can tell you
I am running a K3/100 with a SignaLink-USB. Before that, I ran a K2 with
a SignaLink-USB. This is a very hands-free configuration, and I have
never had the slightest trouble with it. It is a lot less trouble than,
say, a
Chen has given good advice here, but all jacks on the back of the K3 are
mechanically stereo jacks.
In the case of line-in, only the tip has an electrical contact (which
makes it mono electrical input). So it is convenient to just use a
manufactured stereo 3.5mm plug to 3.5mm plug cable to
Hi all,
Is the sidetone/offset setting for the PSK-D mode adjustable? I noticed that
it is for the other data modes, but in PSK D it seems to be frozen at 1010
hz.
No, I'm not demanding Wayne/Eric change this if it's by design ;). Just
curious...
If I could send CW worth a flip, I'd use this
FWIW. I more or less successfully used the K3 for RTTY and a brief taste of
PSK (too slow, like watching paint dry) with the internal sound card in my T400
Lenovo laptop.
I say more or less, because on occasion, the computer would refuse to output
audio to the transmitter. The display would
Wes Stewart wrote:
FWIW. I more or less successfully used the K3 for RTTY and a brief taste of
PSK (too slow, like watching paint dry
Good Morning, Wes...
I think you'll be pleased with the SignaLink box. You are right
about BPSK31 -- it is a bit slow. My take on this is that people like
wow - hand copying 40wpm? My hat is off to you hi hi. When I took my Extra
exam back in the early 90's, it was right at the limit of my ability to
scribble to copy down the text at 20wpm and you had to do a full 5 minutes
of it. My right arm was burning pretty good at the end of the tape...
~
N2CQ QRP CONTEST CALENDAR
April 2010
~
LZOCC 40m CW Sprint ... QRP Category
Apr 3, 0400z to 0800z
Rules: http://www.lzopen.com/lzocc40/indexF.htm
I think you'll be pleased with the SignaLink box.
There is no value to the Signalink that can't be provided
by much less expensive USB based soundcards (e.g., UA-580
for $28.95 at Byterunner) or even the $9.95 dongles used
to support a headset. Since the K3 provides VOX in the
DATA A
On Apr 5, 2010, at 9:48 AM, Joe Subich, W4TV wrote:
There is no value to the Signalink that can't be provided
by much less expensive USB based soundcards
___
The SignaLink schematic shows the same type of isolation transformers already
standard in the KIO3.
On Sun, 04 Apr 2010 23:58:42 -0700, Kok Chen wrote:
The usual reason given for using a separate sound card instead of the
built-
in speaker/headphones of the computer is so that chimes, alert sounds and
music from the computer don't accidentally go out on the air (especially
when the
On Apr 5, 2010, at 4/57:33 AM, lstavenhagen wrote:
Still with PSK31, trying it out with cocoaModem, I find I can't keep
the
buffer full. I can get ahead on simple plain language but throw some
numbers
and punctuation in there and the buffer catches up pretty quick. 45
baud
RTTY
Well have a new computer. Windows 7 seems to be pretty decent, unfortunately
the number of available slots leaves something to be desired. I only have
three slots, one which is occupied by a video card (soon to be replaced by
on that will eat up TWO slots). I have EMU sound cards, but only have
If you need more slots then build a real computer. Shouldn't be too
hard to get a case and a motherboard that will support whatever
processor and ram you have, with more pci/pciE slots to make the
upgrade cheaply.
Matt
W8ESE
__
Elecraft
I've seen this thread on every ham list I've read - goes on forever.
I always wonder - how does the K3 know which are the intake holes in the
cabinet and which are exhaust? The cool air comes in replacing the hot air,
right? ;-)
On tube transceivers, the finals may be oriented at the rear of
On 4/5/2010 10:43 AM, Matt Palmer wrote:
If you need more slots then build a real computer. Shouldn't be
too hard to get a case and a motherboard that will support
whatever processor and ram you have, with more pci/pciE slots to
make the upgrade cheaply.
My observation is that the
My observation is that the motherboards for desktop/tower
computers are having less and less slots as time goes by.
Most certainly not true, in fact the trend is going the other way,
with some of the newer mobo's designed to support 4x graphics cards in
parallell, they have more slots, all
My shack computer is an old Pentium machine running XP. It is more than
up to providing stutter-free CW and responsive RTTY. Before, I had just a
single (cheap) sound card that I put to use for SO1R RTTY. Now, with the
two new K3s, and having used AFSK successfully, twice, I am planning to
add a
Don,
In my fluid mechanics labs it became apparent that exhaust cooling is
much more effective than forced cooling for situations that are similar
to the K3 PA 'cage'.
First is that the exhaust fan does not add to the temperature of the
air, and second, the flow can be more easily controlled.
Rob,
You do not need a high quality soundcard to do AFSK or DATA A modes.
Most any run-of-the-mill 16 bitt soundcard will do all that is
required. The signal to noise ratio with really el-cheapo cards may be
a problem - ARRL reported on that a couple years ago in QST.
If you want to do
I want to do some experiments placing ferrite beads on the TMP cables that
carry so many signals around the inside of the K3. I can't find the
dimensions of the SP060022 connectors on the cables and I don't have a set
of calipers to make an accurate measurement. Does anyone know the location
of an
Look for one of the Edgeport boxes from InsideOut on ebay. Up to 8
serial ports to use for rig control or whatever. For about $60 I got
1 - 8 port 1 - 4 port.
At 12:38 PM 4/5/2010, Julius Fazekas n2wn wrote:
Second, this new machine has ZERO serial ports and I need at least four.
Cards aren't
The SignaLink schematic shows the same type of isolation
transformers already standard in the KIO3.
Which are redundant when used with the K3/KIO3. Again,
no value over the inexpensive USB soundcard.
73,
... Joe Subich, W4TV
microHAM America
If you elect to use USB to serial and not one of the purpose
built amateur multi-function interface, by all means get one
of the Edgeport multi port boxes. A four port interface
will provide rig control and FSK/PTT/CW for two radios. A
six port box will provide rig control, FSK/PTT and
From a message on this refector dated Aug '08:
http://www.spectrum-component.com/Vendors/Taiko_Denki/29tmp-S.pdf
This drawing has the dimensions for TMP connectors.
However, what are you expecting the ferrite beads to accomplish? There
shouldn't be any currents on the outside of the coax
They're probably Taiko Denki.
http://www.scsiglobal.com/Vendors/Taiko_Denki/29tmp-S.pdf
Matt Zilmer
909-394-6052
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brian Machesney
Sent: Monday, April 05, 2010 12:43 PM
To:
Dummy Me. I misplaced my 2 band filter board for my K1. If you saw my work
bench you would understand. It was a 40/80. Before I purchase a board kit
and build it again I thought I would ask here first. Sooo, does anyone
have a working one for sale? Send info to my call at yahoo, of course if
Thanks everyone for the suggestions.
I have decided to purchase a less expensive sound card for dedicated use
with PSK31. While I could do this through the other sound card or the
computer, it is easier to set things up this way.
-Original Message-
From:
Hello, K3 operators all:
Have you encountered this problem? You find a DX pileup, find the DX
station, then determine a frequency where you wish to call the DX.
However, when you push SPLIT, you find the SPLIT icon, a mode
indicator, and the little down arrow that points to VFO B are all
Don (FPR type),
Do you really think it matters in K3 - with micro fan motors and such a simple
cage?
If a K3 is setup to run TX RTTY in a controlled environment,
and then repeat the test with the fan direction reversed, how much
of a temperature delta would you expect?
[Elecraft] K3 Cooling
Oh yeah, you can also have different filter settings, etc. in each one (and I
believe you can enable cross band split in the config menu somewhere). I
think it's lovely. I was listening to a V31 on 40M last night running
stations up 2. I had the 400hz filter on him (VFO A) to filter out the lids
Thanks to those who sent me a link to the drawing.
In response to several queries I received, I agree that there *should not
be* any currents flowing on the outsides of the coax cables. As far as I
know, that doesn't mean that there *are* no currents on the outsides of the
cables. I think that
Dont mean to jump in but I'd be the difference would be significant. Air flow
into a low pressure area causes it to expand and thus cool down (similar to
the heat exchange method used in air conditioners), and the reverse for air
stuffed into a high pressure area (compresses, heats up).
Also, in
Don,
I suspect it would make a big difference, especially with the SubRX
installed - it would be worse with the air flow inward.
In order to provide effective cooling, the air flow needs to be laminar
across the heat sink. If there is turbulence, the cooling effectiveness
will be reduced. By
Let me throw a few things into the mix.
1.) About compression and temperature. There isn't enough
pressure to make a difference. The fan in the K3 is not
running at 40 PSI, or even at 0.4 PSI. I would bet the
static pressure is less than 0.1 inches of water (.0036
PSI). It takes a pretty big
I would like to buy a Softrock Lite II with the 8192 KHz center frequency for
use with my K3 so I could create a Pan adapter using PowerSDR/IF.
Tony is currently swamped with orders for his other SDR rigs and is unable to
fill my order for one of the above units.
--
GB 73
K5OAI
Sam Morgan
Good Evening,
A day late but there was no emergency. I just got tired and went to sleep
very early last night. I think the never ending snow storm took its toll. If
it had accumulated there would be quite a pile right now but the snow level
keeps rising and falling. One minute it is
Item(s) found thanks for the bandwidth
--
GB 73
K5OAI
Sam Morgan
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I believe that if you examine the intake slots above the PA heat sink,
you will see that cool intake will come in equally across the fins,
with the fins farthest from the fans getting cool air directly from
above, and the portion of fins closest, though pulling warm air from
parts of the fins away
On 4/5/2010, at 9:11 , Guy Olinger K2AV wrote:
Snip
As to how good the cooling is, just to see what happened, I let the K3
transmit at 100 watts for a half hour into a dead band.
I wish you had said In to a dummy load..
As an aside, it's amazing how many engineering papers a simple
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