Hi, Elecrafters.
I'm hoping someone can help!
I completed my KXB3080 modification tonight but during testing I
discovered that I am getting pretty much the same transmit power out
(1.8W with 10V) on 40m as 20m (according to the KXAT1 this is the only
watt-meter I have) into a 50 ohm load. I too
Noticed the following on eham:
http://www.youtube.com/watch?v=fAOOd48j6WA
Its a very well done video showing ham radio and contesting. Worth a look.
--
73
Larry
WA2DGD
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David:
What you are experiencing is the automatic hand key software selection. You
can turn it off in the menu settings. When both paddles are closed at the
same time the K2 thinks it is running in the straight key mode. Enter the
Menu but tapping the menu button and then rotate the vfo kno
Hello All,
Unlike most of the people on this mailing list, my CW sending skill is very
poor. So I have bought a paddle and am practicing regularly. One thing I
have found with my K2 (S/N 5492) is that the CW test mode will sound a
continuous note with both paddles pressed. This happens inter
David,
Don't feel too bad - it happens to lots of folks. This is the 3rd instance
that I recall in the last 2 days where the problem turned out to be a bad
solder connection. It is by far the most common problem encountered by
builders. So much so that I often say "Check the soldering, and then
~
N2CQ QRP CONTEST CALENDAR
November 15 - December 13, 2006
~
80 METER FOXHUNT - EACH Wenesday 0200z to 0329z
(Tue 9 PM to 10:29 PM EST)
Info: http://www.qrpfoxhunt.org/
~~~
Hi Bob - The KX1 gets the nod here. But for locations that I access by
car, I like my K1 better. For that reason, I sold my KX1 and built another
K1. I sold my first K1 when I built my KX1. I don't take a rig hiking
much, due to we usually have a quick turn around time, and head back. If I
w
I would agree that you should try Ham Radio Deluxe, along with all the
programs included it's a wonderful tool (including auto uploads to
Eqsl). At this time PSK31 Deluxe that is part of the suite is being
replaced and is in Beta testing, the digital mode program is called
DM780 and will be integr
I've posted Doug, N6TQS's, photos and description of his Hakko 808
mounting box at
http://www.cliftonlaboratories.com/construction_updates.htm. It in the
15 November 2006 entry.
Very nice job!
Of course, you are welcome to read the rest of that page and the rest of
the site as well.
Jack K
I've only been at this for less than a year, so my logging needs
have not been very intense. So far, I've been logging in a spreadsheet
on my ancient Psion PDA.
This works fine for my fairly casual operating - I play in a few
contests for contacts, but not for points - but it does not help
me with
THANKS DON! The problem is solved, and good news - Q17 is fine.
When I got your email, I turned on the rig and put the frequency probe
on TP1. This time it measured a frequency and a correct one at that.
I thought - Before it didn't work. Now it does. H...H... Aha!
loose connection! So I
Hi All,
I'm sure this has been covered before, but for hiking and backpacking is it
a choice between the KX1 and K1, is one better then the other ? Or is it a
nocontest and that the KX1 is
the winner because of being smaller and lighter ?
What about portable antenna's - a long wire ? or is th
Phil,
To turn the K2 AGC off, press the PRE/ATT and AGC buttons at the same time.
See the K2 manual (rev F) page 100.
73,
Don W3FPR
> -Original Message-
> >Running PSK31 with AGC off is often a better way to operate.
>
> I've asked this before - how does one turn the AGC off in a
>
Don,
Your advice to re-inventory is correct. But Christine has been known to have
had a bad day. In my last K2 (K2, KSB2, KIO2, KNB2, K60XV,K160RX, KAF2, KAT2,
KBT2, EC2, KPA100, KAT100) I have been short shipped THREE (3) parts.
As the late Carl Sagen would say, "Billions and billions of par
I'd also like to see what you have put together, Doug. I have trouble keeping
mine from tipping over on the bench. I thought about anchoring it to the table.
Stan
W5EWA
Jack Smith <[EMAIL PROTECTED]> wrote:
Doug:
If you send me the photo, I'll put it up in the Construction area of
George wrote:
I found the Radio Shack desolder tool # 64-2060 to be quite effective, and it
was less than $15, as I recall. It heats up somewhat slowly, but the tip does
get quite hot, when it reaches terminal temp, so keep that in mind. It uses a
rubber bulb for suction, and certainly works
I found the Radio Shack desolder tool # 64-2060 to be quite effective, and it
was less than $15, as I recall. It heats up somewhat slowly, but the tip does
get quite hot, when it reaches terminal temp, so keep that in mind. It uses a
rubber bulb for suction, and certainly works better than RS'
Usually disabling the built-in sound system in a PC is simple. You go
into the BIOS configuration and select disable in the list of devices.
Do this first, then plug-in your soundcard and you shouldn't have any
problems.
I do disagree with the statement that most built-in sound systems are
On Tue, 14 Nov 2006 22:16:50 -0600, Cathy James wrote:
>What can I do to increase the audio output level of the K2 for sound
>card purposes?
Others have made some suggestions but I'll add mine as responses
to their postings:
On Wed, 15 Nov 2006 07:41:57 -0500, Don Wilhelm wrote:
>You may wan
Scott,
You will need the 25LC320 for the U7 slot - an LM380N-8 must go into U9.
Check all the 8 pin devices on the black foam again - Christine rarely makes
a packing mistake.
73,
Don W3FPR
> -Original Message-
>
> I am inventorying my k2 kit and have a question.
> On the control board I
Scott,
On the control board, U9 is the LM380 which you should have, and U7 is
the 25LC320 serial EEPROM which you ALSO should have. So it sounds like
you might be missing the LM380, eh?
Well, based on my experience, you should go through everything again
with a stronger source of illuminatio
Doug,
For all practical purposes there is no difference, they can be used
interchangably. Download the datasheets if you wish to confirm that fact.
73,
Don w3FPR
> -Original Message-
>
> Just curious. Does anyone know what the differences are between the
> SA602 and the SA612 mixers?
>
Hmmm, I did a quick Google search on 25LC320. It said it was an serial
SPI bus EEPROM.
Talk about knock me over. I'm in the middle of configuring software to
talk to ... a SPI bus EEPROM.
If google is right, then the LM380N and 25LC320 are NOT the same thing
...
- Keith "whatdoiknowi'mjustasof
Just curious. Does anyone know what the differences are between the
SA602 and the SA612 mixers?
Doug K0DXV
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HI
I am inventorying my k2 kit and have a question.
On the control board I should have a LM380N-8 audio amp.
I don't have that, but do have a 25LC320/1fv0526.
They are probably the same, but would rather be sure than
sorry!
Thanks
Scott N5SM
___
Elecraf
The EPC (European PSK Club) will be holding their 2006
PSK63 QSO Party Sunday, 19Nov2006 from 00:00 UTC until
24:00 UTC.
More info on the Contest and EPC can be found at their
website
http://www.eu.srars.org
The contest is open to non-EPC members. Membership
(not required to participate in the
I've noticed the same thing about audio level,
especially out of the headphone jack. The rear speaker
jack seems to provide a higher audio level, so you may
want to try that. While I've not looked at the
circuitry involved, my guess is that the headphone
audio circuit does some attenuation of the a
The changes to Part 97 have appeared in the 11/15/2006 edition of the
Federal Register. So they will go into effect on 12/15. Does this
imply that the amps (KPA 800 and KPA1500) will be available on 12/15?
Raj
--
Rajiv Dewan, N2RD
[EMAIL PROTECTED]
FN13fc
--
_
Don,
Your experience, expertise and advice does it again. Since my K2 has
worked fine since I built it a year ago, I didn't think that this would be a
solder problem, especially since the problem surfaced when installing the
KPA100. Tom, N0SS, suggested that I re-do the BFO calibration,
The sidetone mod by TF3MA was installed in my K2 right after Marti posted
it. I obtained a 47 mh inductor for this mod from Elecraft. The mod
resulted in an improved sidetone, but left room for further improvement,
especially at lower tones. Additionally there was an objectionable pin-prick
Check:
http://shop.kiesub.com/Search.bok?category=Solder+Equipment%3ADesolder+Nozzles
73,
Tom Hammond N0SS
Don Wilhelm wrote:
Doug,
Well, I just checked and they do not list it on their website. I would give
them a phone call to see if they still carry it. You will find pleasant
folks at
Don Wilhelm wrote:
Doug,
Well, I just checked and they do not list it on their website.
This tip is available at
http://shop.kiesub.com/Categories.bok?category=Solder+Equipment
73
Larry
KB5DXY
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Hi Doug,
Ken, K3IU kindly sent me this link.
http://shop.kiesub.com/Search.bok?category=Solder+Equipment%3ADesolder+N
73,
John, W2GW
- Original Message -
From: "Don Wilhelm" <[EMAIL PROTECTED]>
To: "Doug Person" <[EMAIL PROTECTED]>
Cc:
Sent: Wednesday, November 15, 2006 7:21 AM
Sub
David,
Reviewing your voltage readings with my 2nd cup of tea this morning, I find
Q17 might be giving you a problem. Temporarily short the drain of Q17 to
ground and see if your VFO starts oscillating.
If it does, then Q17 may have been zapped during handling and installation -
those 2N7000s ar
David,
All those voltages are about right for a VFO that is not oscillating. Do
not be concerned about a voltage that is only a few 10s of millivolts
different from the chart. Actual readings will vary a bit from DMM to DMM.
The important voltage now is the gate of Q18 - it should go negative o
Cathy,
I really have not had any problem using the headphone output - I have always
found that the AF Gain control on the K2 could be advanced sufficiently to
overdrive the sound card line-in.
You may want to look at something like the K2 Fixed Audio Output that I have
on my website http://w3fpr.
Doug,
Well, I just checked and they do not list it on their website. I would give
them a phone call to see if they still carry it. You will find pleasant
folks at the other end of the phone line.
73,
Don W3FPR
> -Original Message-
>
> Don - I wasn't able to find the A1394 tip at your s
Cathy:
A trick I've used in the past with RTTY demods is to drive the demod
audio input (or sound card) via a step-up audio transformer.
In the days of tube-type demods, I would connect a tube-type audio
output transformer backwards across the receiver speaker output, but
that would produce
Doug:
If you send me the photo, I'll put it up in the Construction area of
www.cliftonlaboratories.com as it might be of interest to Z90 builders
as well.
Jack
Doug Faunt N6TQS +1-510-655-8604 wrote:
I've found the 1394 to be useful, too.
Do we have a photos area? I could put up a pictur
Many thanks to all who responded to my question about a finer tip for the Hakko
808 than comes with it. The consensus recommendation was for the A1394 tip. I
will be ordering one today.
The members of this Elecraft list are the greatest!
73,
John, W2GW
___
You can take the audio output from the external speaker socket at the back
of the rig.
You can feed the audio into the more sensitive mic input of the sound card.
You can do one of the mods that provides a volume-independent audio output.
I take mine from the KAF2 board, but if you don't have a K
Hi Scott,
I have built two K2s, #767 and #3725.
The only problems I experienced were my
own fault.
They were very quickly solved on this
reflector by very experienced folk like Don
W3FPR, Tom N0SS and many others who
contribute to this list.
I'm the only one (so far) that turned TWO
pages of
Double-checking DC voltage measurements on 3 transistors.
Item Measured Chart
Q18
---
G: 0.00 -1.0 !!
S: 1.97 **2to3
D: 7.97 6.3 !
Q17
---
G: 2.16 * 2.2
S: 0.00 0.0
D: 1.97 **2to3
Q16
---
E: 0.00 0.0
B: 0.55 0.6
C: 2.1
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