date:20090205

N2WN wrote about the K1EL keyers.  

I've been using them for several years, and they're great.
I'm currently using the microHam CW Keyer that has the
WinKey chip and a radio interface (USB) in one small box.  

With it, I can send CW in four ways:  computer keyboard,
regular paddles, macros setup with a numeric keypad, or 
macros setup in a logging program (I use DXBase and N1MM).  

Like Julius, I'm just a happy customer and no financial interest.

73,
Chuck  NI0C

K2/10 s/n 5853
K3/100 s/n 1061 __
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[Elecraft] fresh perspective on K3

Windy, KM5Q, has a superb review of the K3 displayed on the eHam website.  
Reflector readers will thoroughly enjoy his fresh perspective.  

73,

Chuck Guenther NI0C
K2/10 s/n 5853
K3/100 s/n 1061__
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Re: [Elecraft] K3 Band Independance


On Feb 4, 2009, at 9:29 PM, Brett Howard wrote:

 Pressing and holding REV while in split mode is a bit odd hearing all
 the relays fire off as you take a quick jump for a listen on the other
 side but all works flawlessly.  Both VFO A and B knobs remain true to A
 edits the tob area and B edits the bottom area.  Gotta love consistency
 in the UI!  One thing I do dislike here is that when pressing REV it
 displays the antenna name for a second there...  I'd almost prefer not
 to have that pop up when switching bands via the REV button.  It makes
 sense to display it when I'm switching bands via other methods as its
 stored on a per band basis but when I'm just quickly jumping via the 
 REV
 button it just kinda gets in the way.

I'll have the antenna name flash removed in the next field-test 
release, Brett. Thanks for the report.

73,
Wayne
N6KR

---

http://www.elecraft.com

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[Elecraft] K3 Test Mode Problem

2009-02-05 Thread Harvey

The test mode doesn't operate like it did with previous firmware revs. I'm 
using an MH-2 mic with K3 s/n 2231 with firmware 2.78. When I key up, vfo B 
shows 'ERR TXF' and I can hear myself in the speaker.  When I unkey I can't key 
the mic again without pressing any key pad on the front panel to reset the 
error on vfo B first. Am I doing something wrong? I used to be able to key the 
mic repeatedly in the test mode without any error hangups.

Harvey  KN6VP__
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Re: [Elecraft] K3/ACLog interface failure

2009-02-05 Thread Terry Schieler

Hi Jim,

I had a similar experience with my K3 and ACLog from N3FJP.  When I
contacted Scott I got the same reply.  Of course, he never had an FT1000MP
like mine when he made my 'MP work with his software.  I just got the
feeling that it's time for me to move to another program.  His log worked
fine with my K2, so it sounds to me like Scott just doesn't want to mess
with it.

I like the logging program a lot, for all the same reasons you do and I hate
to change, but...

73,
Terry, W0FM



---From W3CP:

I hope an ACLog user out there can give me a clue as to my trouble.
As a start the following is my description as sent to N5FJP(ACLog author).
...
There has been no success in interfacing my Elecraft K3 with my PC (XP OS)
when using your general logging program. A serial port is used with RS232
connectors. In the interface setup Elecraft was selected and all the other
blanks filled in as per the K3 manual. The ACLog test is never passed and I 
have
gone through the setup many times to be sure things have been entered
correctly.  I don't know what else to do and would appreciate your
suggestions.

As some added information. I used WriteLog in the recent CQ 160 Contest and
it interfaced with the K3 OK.  In the past my Yaesu FT1000MP Mark V
interfaced with your program just fine.
..
And this is the reply:

Hi Jim,

Thanks for your e-mail.? I don't have a K3 here so I'm not going to have any
specific advice on the settings.? Please feel free to post your question on
the N3FJP_Software_Users group and see is someone with a K3 can help.


73, Scott
N3FJP
http://www.n3fjp.com/
..

And it's certainly possible I'm doing something stupid; so I surely would
appreciate any suggested solutions to my problem.

My reasons for using ACLog for general logging were it is easy to install,
the stuff provided that I'm not interested in can be hidden, it can be used
as a log for special contests or parties such as QCWA,SOWP,PVRC.

73,  Jim  w3cp

.






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Re: [Elecraft] K3 Test Mode Problem

2009-02-05 Thread Don Wilhelm

Harvey,

You may have inadvertently changed the transmit filter for CW or SSB 
around the time you updated the firmware.  Use either K3 Utility or the 
configuration menu to set the SSB transmit filter to your 2.7 or 2.8 kHz 
filter. 
ERR TXF is telling you that the wrong transmit filter bandwidth has been 
set.  See page 65 of the manual.

73,
Don W3FPR

Harvey wrote:
 The test mode doesn't operate like it did with previous firmware revs. 
 I'm using an MH-2 mic with K3 s/n 2231 with firmware 2.78. When I key 
 up, vfo B shows 'ERR TXF' and I can hear myself in the speaker.  When 
 I unkey I can't key the mic again without pressing any key pad on the 
 front panel to reset the error on vfo B first. Am I doing something 
 wrong? I used to be able to key the mic repeatedly in the test mode 
 without any error hangups.
  
 Harvey  KN6VP

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Re: [Elecraft] K3/ACLog interface failure

2009-02-05 Thread W0JFR


I think the RS232 data rate is set incorrectly in ACL - it should be 38.4.
The default ACL Elecraft rate (4.8) is based on the K2, whereas the default
data rate in the K3 is 38.4 (which you could set to 4.8). Anyway both the K3
and ACL have to use the same setting. You can also change the Stop Bits to
1, but I think it will work with either 1 or 2 set.
  - John, W0JFR



W3CP wrote:
 
 I hope an ACLog user out there can give me a clue as to my trouble.
 As a start the following is my description as sent to N5FJP(ACLog author).
 ...
 There has been no success in interfacing my Elecraft K3 with my PC (XP OS)
 when using your general logging program. A serial port is used with RS232
 connectors. In the interface setup Elecraft was selected and all the other
 blanks filled in as per the K3 manual. The ACLog test is never passed and
 I 
 have
 gone through the setup many times to be sure things have been entered
 correctly.  I don't know what else to do and would appreciate your
 suggestions.
 
 As some added information. I used WriteLog in the recent CQ 160 Contest
 and
 it interfaced with the K3 OK.  In the past my Yaesu FT1000MP Mark V
 interfaced with your program just fine.
 ..
 And this is the reply:
 
 Hi Jim,
 
 Thanks for your e-mail.? I don't have a K3 here so I'm not going to have
 any
 specific advice on the settings.? Please feel free to post your question
 on
 the N3FJP_Software_Users group and see is someone with a K3 can help.
 
 
 73, Scott
 N3FJP
 http://www.n3fjp.com/
 ..
 
 And it's certainly possible I'm doing something stupid; so I surely would
 appreciate any suggested solutions to my problem.
 
 My reasons for using ACLog for general logging were it is easy to install,
 the stuff provided that I'm not interested in can be hidden, it can be
 used
 as a log for special contests or parties such as QCWA,SOWP,PVRC.
 
 73,  Jim  w3cp
 
 .
 
 
 
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[Elecraft] K2 : to release all the LPF-Relais

2009-02-05 Thread Luc Favre

Hi all,
There is a possibility to release all LPF-Relais in the K2/10 PA (very usfeul 
to test the LBF). Could some one refresh my failing memory ?
73 es TU
Luc/F6HJO/HB9ABB
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[Elecraft] All mode keyboard, was Re: CW Keyboards

2009-02-05 Thread Doug Faunt N6TQS +1-510-655-8604

   Date: Thu, 5 Feb 2009 04:58:06 -0800 (PST)
   From: Julius Fazekas phriend...@yahoo.com

   For those who need or want a CW Keyboard, I would recommend
   K1EL. www.k1el.com

   CW keyboards are great, particularly in situations where you're
   very tired and prone to less than perfect sending by other
   methods... straight key in my case.

And if you want to run RTTY without a computer, but with a keyboard,
his K40 keyer (out of stock right now) will act as an keyboard to FSK
adapter.  I've done it with my old IC-756Pro, as a fun thing to do,
once.

OTOH, I'm sure somewhere there's microprocessor code for a CW keyboard
that could be modified to produce paddle outputs i.e. a closure for dit,
and a different one for dah.
When plugged into the paddle input on the K3, that would give you
no-computer keyboard operation for CW, RTTY and PSK, using the
built-in text decode for reception, if you can't copy all those modes
by ear 8-}.

I've built a bunch of WKUSB's for N8S and for my YU friends, too.

73, doug
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Re: [Elecraft] [K3] Elecraft roofing filters

2009-02-05 Thread Kjeld Holm

Dear all,

Thanks for all the kind answers.

Sorry for all that fuss. Somehow I mixed up everything so I ended up
thinking of some nonsense like 1.0 kHz for SSB. :-o

I will go for 250 Hz and 400 Hz for CW plus 2.8 kHz for SSB. And also
filters for AM and FM.

Vy 73
OZ1CCM Kjeld



-Original Message-
From: W0MU Mike Fatchett [mailto:w...@w0mu.com] 
Sent: 5. februar 2009 15:28
To: 'Kjeld Holm'
Subject: RE: [Elecraft] [K3] Elecraft roofing filters

They are available on the website.   

KFL3A-1.0K  1 kHz, 8-pole roofing filter125.95

I have one in my K3 but I don't use it too much.  You might want to use it
over a 250 or 500 filter to listen to a pile up so you can hear if the
station is working people above or below his frequency.  I have listened to
SSB a bit on the filter and while very narrow for SSB you can hear the
station.

The better question might be, what modes do you like to operate?  I am about
to order a second K3 and I was going to go with the following filters.  2.8
replacing the stock 2.7/ AM/ FM/ 400 or 500 and 250.  If you never play to
transmit on AM or want to do ESSB or FM those slots would be available.  The
K3 I have now has the 2.7 which is being replaced with the
2.8/1.8/1.0/400/200 in the main rcv, 2.8/400 in the sub.

Mike W0MU

A slip of the foot you may soon recover, but a slip of the tongue you may
never get over. Ben Franklin -Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Kjeld Holm
Sent: Thursday, February 05, 2009 5:44 AM
To: 'ElecraftList'
Subject: [Elecraft] [K3] Elecraft roofing filters

Dear all,
 
In the Roofing Filter Notes from Wayne and Eric link on the Order page I
see the two sentences: Add narrower/wider filters as you prefer. I like to
use the 1.0 kHz crystal filter when tuning a crowded band or listening to a
pile up.
 
Can anyone point me to a place that can tell me what the 1.0 kHz crystal
filter is, where to obtain one and when it is worth using?
 
Vy 73
OZ1CCM Kjeld 


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Re: [Elecraft] All mode keyboard, was Re: CW Keyboards

2009-02-05 Thread Julian, G4ILO




Doug Faunt N6TQS +1-510-655-8604 wrote:
 
 OTOH, I'm sure somewhere there's microprocessor code for a CW keyboard
 that could be modified to produce paddle outputs i.e. a closure for dit,
 and a different one for dah.
 When plugged into the paddle input on the K3, that would give you
 no-computer keyboard operation for CW, RTTY and PSK, using the
 built-in text decode for reception, if you can't copy all those modes
 by ear.
 

If you were going to do that, you could make it connect to the serial port
and use KY commands to send the text. You could also use the TT command to
get the decoded text and display it on a bigger LCD display.

I got a PIC development kit a while ago and it has a serial interface and
also a USB one for a keyboard. So it definitely seems possible. However my
brain can't cope with programming these days, so I'll wait for someone else
to design one!

-
Julian, G4ILO. K2 #392  K3 #222.
http://www.g4ilo.com/ G4ILO's Shack   http://www.ham-directory.com/ Ham
Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 
-- 
View this message in context: 
http://n2.nabble.com/CW-Keyboards-tp2274724p2275796.html
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[Elecraft] re Volume knob

2009-02-05 Thread ik8ozz

Hi Tom(N5GE), thank you for fast reply to my answer.
To-day i receive the Voice recorder and also include 2 volume knob at 1,60$ 
cost, is not very expansive becuase  the change is very good for us in 
Europe.
Don't worry you, but your help is appreciated.
73's de Luigi,ik8ozz. 

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Re: [Elecraft] K3/ACLog interface failure

2009-02-05 Thread Julian, G4ILO




W0JFR wrote:
 
 I think the RS232 data rate is set incorrectly in ACL - it should be 38.4.
 The default ACL Elecraft rate (4.8) is based on the K2, whereas the
 default data rate in the K3 is 38.4 (which you could set to 4.8). Anyway
 both the K3 and ACL have to use the same setting. You can also change the
 Stop Bits to 1, but I think it will work with either 1 or 2 set.
 
I've had problems using 2 stop bits with a USB adapter, so I'd advise using
1. I was told that the default baud rate of the K3 is 4800 - I can't confirm
or deny that, since changing it was one of the first things I did.

But you are quite right that the software and K3 have to use the same
setting. All the problems people have had with KComm were due to this.
People think you can just set the baud rate in the software and the rig will
follow, but it won't. You have to check the CONFIG: RS232 menu setting
yourself and make sure the software is using the same value. And if you've
tried connecting at the wrong speed you need to turn the K3 off and on
again, because sometimes it goes into a sulk and won't communicate at all
after you have done this.

-
Julian, G4ILO. K2 #392  K3 #222.
http://www.g4ilo.com/ G4ILO's Shack   http://www.ham-directory.com/ Ham
Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 
-- 
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Re: [Elecraft] OT: Changing hands for CW

2009-02-05 Thread Jerry Flanders

Wow! It seems to work pretty well. I never heard of this, so never 
tried it. I would have to practice quite a bit before I would want to 
use it on the air, though.Been using paddle/bug for 57 years with 
right hand. Other side of brain must have noticed how to make it work 
in reverse.

You guys needing this should definitely check it out.

Jerry W4UK

At 06:10 2/5/2009, Ken Kopp wrote:
Here's an experiment for those who either want or
need to change hands to send CW with paddles or
even a bug.

You can turn the paddles or bug around so the paddles
face away from you and then reach over the top and try
sending with the wrong hand.  You're likely to be
surprised at how easy it is, even without practice.

If this meets your need, reverse the dot and dash leads
and you're all set.  I learned this in the pre-computer days
of contesting in order to send and paper log at the same
time. (;-)

73! Ken Kopp - K0PP
   elecraftcov...@rfwave.net

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Re: [Elecraft] OT: Changing hands for CW

2009-02-05 Thread David Ferrington, M0XDF

I envy you guys, I'm having trouble making my left hand (I'm left  
handed) work a straight key!
-- 
One glance at a book and you hear the voice of another person, perhaps  
someone dead for 1,000 years. To read is to voyage through time.
-Carl Sagan, astronomer and writer (1934-1996)

On 5 Feb 2009, at 17:22, Jerry Flanders wrote:

 Been using paddle/bug for 57 years with
 right hand. Other side of brain must have noticed how to make it work
 in reverse.

 You guys needing this should definitely check it out.

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Re: [Elecraft] [K3] Elecraft roofing filters

2009-02-05 Thread k4gm

I have the 400 and don't see the need for 250
--Original Message--
From: Kjeld Holm
Sender: elecraft-boun...@mailman.qth.net
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] [K3] Elecraft roofing filters
Sent: Feb 5, 2009 11:27 AM

Dear all,

Thanks for all the kind answers.

Sorry for all that fuss. Somehow I mixed up everything so I ended up
thinking of some nonsense like 1.0 kHz for SSB. :-o

I will go for 250 Hz and 400 Hz for CW plus 2.8 kHz for SSB. And also
filters for AM and FM.

Vy 73
OZ1CCM Kjeld

-Original Message-
From: W0MU Mike Fatchett [mailto:w...@w0mu.com] 
Sent: 5. februar 2009 15:28
To: 'Kjeld Holm'
Subject: RE: [Elecraft] [K3] Elecraft roofing filters

They are available on the website.   

KFL3A-1.0K  1 kHz, 8-pole roofing filter125.95

I have one in my K3 but I don't use it too much.  You might want to use it
over a 250 or 500 filter to listen to a pile up so you can hear if the
station is working people above or below his frequency.  I have listened to
SSB a bit on the filter and while very narrow for SSB you can hear the
station.

The better question might be, what modes do you like to operate?  I am about
to order a second K3 and I was going to go with the following filters.  2.8
replacing the stock 2.7/ AM/ FM/ 400 or 500 and 250.  If you never play to
transmit on AM or want to do ESSB or FM those slots would be available.  The
K3 I have now has the 2.7 which is being replaced with the
2.8/1.8/1.0/400/200 in the main rcv, 2.8/400 in the sub.

Mike W0MU

A slip of the foot you may soon recover, but a slip of the tongue you may
never get over. Ben Franklin -Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Kjeld Holm
Sent: Thursday, February 05, 2009 5:44 AM
To: 'ElecraftList'
Subject: [Elecraft] [K3] Elecraft roofing filters

Dear all,

In the Roofing Filter Notes from Wayne and Eric link on the Order page I
see the two sentences: Add narrower/wider filters as you prefer. I like to
use the 1.0 kHz crystal filter when tuning a crowded band or listening to a
pile up.

Can anyone point me to a place that can tell me what the 1.0 kHz crystal
filter is, where to obtain one and when it is worth using?

Vy 73
OZ1CCM Kjeld 

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Sent from my Verizon Wireless BlackBerry
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Re: [Elecraft] K2 : to release all the LPF-Relais

2009-02-05 Thread Ingo Meyer, DK3RED

Bonjour Luc,

 There is a possibility to release all LPF-Relais in the K2/10 PA (very usfeul 
 to test the LBF). Could some one refresh my failing memory ?

Turning power off/on in the INIT mode of the ATU clears all L-C-network data
-- 
73/72 de Ingo, DK3RED - Don't forget: the fun is the power!
www.qrp4fun.de - dk3...@qrp4fun.de
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Re: [Elecraft] OT: Changing hands for CW

2009-02-05 Thread Darwin, Keith

I'm right handed and send left handed with right handed paddles.  I sent
right handed with a bug and straight key.  I've tried left handed with
the bug and it was no problem.  Right handed with paddles is no problem.

I've tried left handed with a straight key and I sound like I'm drunk
:-)

- Keith N1AS -
- K3 711 -
 

-Original Message-
From: David Ferrington, M0XDF

I envy you guys, I'm having trouble making my left hand (I'm left
handed) work a straight key!
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Re: [Elecraft] [K3] Elecraft roofing filters

2009-02-05 Thread David Ferrington, M0XDF

I agree with that, but the 1.8kHz sure helps in SSB Contests
73 de M0XDF, K3 #174
-- 
Mathematics is the language with which God has written the universe.
-Galileo Galilei, physicist and astronomer (1564-1642)

On 5 Feb 2009, at 16:53, k...@verizon.net wrote:

 I have the 400 and don't see the need for 250
 --Original Message--
 From: Kjeld Holm
 Sender: elecraft-boun...@mailman.qth.net
 To: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] [K3] Elecraft roofing filters
 Sent: Feb 5, 2009 11:27 AM

 Dear all,

 Thanks for all the kind answers.

 Sorry for all that fuss. Somehow I mixed up everything so I ended up
 thinking of some nonsense like 1.0 kHz for SSB. :-o

 I will go for 250 Hz and 400 Hz for CW plus 2.8 kHz for SSB. And also
 filters for AM and FM.

 Vy 73
 OZ1CCM Kjeld

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[Elecraft] sending with either hand

2009-02-05 Thread Gary Lee

Good Idea.  I've never tried it with paddles, but I qso with my left hand 
and a streight key every couple of weeks.  I'll have to try the paddle 
experiment soon.

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Re: [Elecraft] K3: Relay noise?

2009-02-05 Thread Classe Bergman


I have heard this relay noise since I put together my K3 kit s/n 1484 in
August 2008. I always use full QSK, and then it's easy to hear the clicks if
the room is silent.
I was little surprised in the beginning, as I had read that the T/R
switching should be all electronic. I didn't think no more about that, as I
have KPA100, KAT3 and KXV3 installed I thought that there was a small relay
somewhere on the options modules.

Today I did some tests, and took the top cover off and tried to listen
carefully after the clicks. I am sure that it comes from a relay located
somewhere under the KPA100 module. Not from KAT3 or the LP filter relays.

There is no change in clicks if I put the radio in TX TEST mode or have full
RF output, so it is not RF or high current related.

It very hard to hear if I close PTT or a key manually or tap XMIT, but it is
still there.

CW mode , SSB mode or KPA100 disabled, it is still there every time T/R is
switching.

After a quick look at the K3 LPA schematic, I can se a small relay K1, 3 dB
attenuator.  What is that relay doing ? Can that be a candidate for causing
the noise? 

I have just done the same tests with an other K3 that was factory build.
Both radios produces exactly the same relay noise.

I am using the lastest software in the radios now, but it have been the same
thing with older software.

73 Classe SM3GSK


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Re: [Elecraft] K3/ACLog interface failure

2009-02-05 Thread Mark KN7T


I am an ACLog user and my K3 works just fine with that program.  I suspect
that the baud rate is mismatched and that is causing your problem.  I have
mine set to run 38.4K baud and the polling rate is set at 100 mS.
-- 
View this message in context: 
http://n2.nabble.com/K3-ACLog-interface-failure-tp2272334p2276284.html
Sent from the Elecraft mailing list archive at Nabble.com.

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Re: [Elecraft] [K3] Elecraft roofing filters

2009-02-05 Thread Doug Faunt N6TQS +1-510-655-8604

The 250Hz and 400Hz filters are very similar, in reality.  Having both
is redundant.  But having a 1.8kHz or 2.1kHz for SSB RX is a good
thing for contesting.  Note that some people have used a custom 1.5kHz
roofing filter with good success for SSB contesting.

This is all from a little experience, and listening to people with
LOTS of experince and knowledge.
73, doug

   From: David Ferrington, M0XDF m0...@alphadene.co.uk
   Date: Thu, 5 Feb 2009 17:46:52 +

   I agree with that, but the 1.8kHz sure helps in SSB Contests
   73 de M0XDF, K3 #174
   -- 
   Mathematics is the language with which God has written the universe.
   -Galileo Galilei, physicist and astronomer (1564-1642)

   On 5 Feb 2009, at 16:53, k...@verizon.net wrote:

I have the 400 and don't see the need for 250
--Original Message--
From: Kjeld Holm
Sender: elecraft-boun...@mailman.qth.net
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] [K3] Elecraft roofing filters
Sent: Feb 5, 2009 11:27 AM
   
Dear all,
   
Thanks for all the kind answers.
   
Sorry for all that fuss. Somehow I mixed up everything so I ended up
thinking of some nonsense like 1.0 kHz for SSB. :-o
   
I will go for 250 Hz and 400 Hz for CW plus 2.8 kHz for SSB. And also
filters for AM and FM.
   
Vy 73
OZ1CCM Kjeld

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Re: [Elecraft] K3: Relay noise?

2009-02-05 Thread Tim Heasman

Hi,

I just had a listen to my K3 when keying.  I cannot hear the tick at all in 
my left ear, but can hear it in my right ear providing I turn my ear towards 
the top of the K3.  If I put my mechanical wrist watch (Tudor Submariner) to 
my ear it is louder than the tick from the K3.

73

Tim

gm4lmh 

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Re: [Elecraft] [K3] Elecraft roofing filters



 I will go for 250 Hz and 400 Hz for CW plus 2.8 kHz for SSB. 
 And also filters for AM and FM.

The difference between the 250 and 400 Hz filters is not 
enough to be worthwhile (approximately 375 Hz vs. 430 Hz). 
If you want a narrow filter get the Elecraft 200 Hz 5-pole 
unit. 

In addition, you should not need both the FM and AM filters 
if the firmware was fixed to allow the use of the FM filter 
for ESSB and AM transmit.  If you plan to use the AM filter
only for receiving, that is even more reason to bypass the 
AM roofer and leave a space for the 1.5 or 1.8 KHz SSB filter. 

73, 

   ... Joe, W4TV 
  


 --Original Message--
 From: Kjeld Holm
 Sender: elecraft-boun...@mailman.qth.net
 To: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] [K3] Elecraft roofing filters
 Sent: Feb 5, 2009 11:27 AM
 
 Dear all,
 
 Thanks for all the kind answers.
 
 Sorry for all that fuss. Somehow I mixed up everything so I 
 ended up thinking of some nonsense like 1.0 kHz for SSB. :-o
 
 I will go for 250 Hz and 400 Hz for CW plus 2.8 kHz for SSB. 
 And also filters for AM and FM.
 
 Vy 73
 OZ1CCM Kjeld
 



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Re: [Elecraft] [K3] Elecraft roofing filters

2009-02-05 Thread Andreas Junge


 The 250Hz and 400Hz filters are very similar, in reality.  Having both
 is redundant.  But having a 1.8kHz or 2.1kHz for SSB RX is a good
 thing for contesting.  Note that some people have used a custom 1.5kHz
 roofing filter with good success for SSB contesting.
 

I have to agree with Doug on this, get either one, but not both. I have both
the 400Hz and 250Hz and I saw little difference between them. When I
installed my KRX3 I took the 400hz filter out of the main receiver and moved
it over to the 2nd receiver. I am happy the way it works now. So, that's
2.7Khz and 250Hz for the main receiver and 2.7Khz and 400Hz for the sub.
Diversity receive still works fine. YMMV.

Andreas, N6NU


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[Elecraft] firmware suggestion for k3

2009-02-05 Thread Gary Lee

I would like some sort of audible indication that a reasonable match has 
been obtained with the autotuner.
I sugggest k for a match, and s for swr alert.

Failing that, and maybe easier since you have the switch tones in place, a 
high pitched beep for good match and low for no good.

Being totally blind, this would sure increase my confidence operating the 
k3.

What you all think? 

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Re: [Elecraft] OT: Changing hands for CW

2009-02-05 Thread AD6XY


I use a straight key. The hand I use for keying depends on which is most
convenient at the time. Sometimes I will swap over in between words, if I
need to pick up a pen for example or am getting cramps.

I am not very competent with paddles and it makes little difference which
hand I use, again, I can swap but I do not swap the sense of the paddles.

Mike
-- 
View this message in context: 
http://n2.nabble.com/OT%3A-Changing-hands-for-CW-tp2273454p2276475.html
Sent from the Elecraft mailing list archive at Nabble.com.

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Re: [Elecraft] K2 : to release all the LPF-Relais

2009-02-05 Thread Don Wilhelm

Luc,

That is not a possibility, and if you attempt to make resistance 
measurements, everything will appear to be grounded.  If you temporarily 
lift the #3 lead to T4 you will remove the LPF from the PA and you can 
make resistance measurements.

The relays in the K2 are latching, so you can activate the relays for 
one particular band, then turn off power and the filter for that band 
will still be selected.

An easy way to check the LPF is with an antenna analyzer.  However, you 
must terminate the LPF in 50 or 51 ohms.  If you have the K160RX 
installed, remove that option and put the leads of a 51 ohm resistor 
into pins 6 and 7 of J14.  If the K160RX is not installed, remove W1 and 
connect the resistor between the right end of W1 and to any convenient 
ground point.
With the filter termination in place, you can connect the antenna 
analyzer to the BNC jack and scan the band selected by the K2 to observe 
the SWR or whatever characteristics your analyzer can measure.

73,
Don W3FPR

Luc Favre wrote:
 Hi all,
 There is a possibility to release all LPF-Relais in the K2/10 PA (very 
 usfeul to test the LBF). Could some one refresh my failing memory ?
 73 es TU
 Luc/F6HJO/HB9ABB
  
 

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 No virus found in this incoming message.
 Checked by AVG - www.avg.com 
 Version: 8.0.233 / Virus Database: 270.10.18/1936 - Release Date: 02/04/09 
 08:24:00

   
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Re: [Elecraft] firmware suggestion for k3

Great idea, Gary -- now on my list, along with full CW or DVR feedback 
for all controls. This will take time to complete, though.

73,
Wayne
N6KR

Gary Lee wrote:

 I would like some sort of audible indication that a reasonable match 
 has
 been obtained with the autotuner.
 I sugggest k for a match, and s for swr alert.

 Failing that, and maybe easier since you have the switch tones in 
 place, a
 high pitched beep for good match and low for no good.

---

http://www.elecraft.com

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Re: [Elecraft] K3: Relay noise?

2009-02-05 Thread Steve Ellington

Apparently Elecraft is not aware of the relay and very few of us can hear 
it. I had my K3 for many months before hearing it. It's as if something 
suddenly got it started clicking.  Either just a few rigs do this or most of 
us are nearly deaf. Elecraft, can we get an answer on this?
Steve Ellington
n...@carolina.rr.com
- Original Message - 
From: Classe Bergman classe.berg...@telia.com
To: Elecraft@mailman.qth.net
Sent: Thursday, February 05, 2009 12:54 PM
Subject: Re: [Elecraft] K3: Relay noise?

 I have heard this relay noise since I put together my K3 kit s/n 1484 in
 August 2008. I always use full QSK, and then it's easy to hear the clicks 
 if
 the room is silent.
 I was little surprised in the beginning, as I had read that the T/R
 switching should be all electronic. I didn't think no more about that, as 
 I
 have KPA100, KAT3 and KXV3 installed I thought that there was a small 
 relay
 somewhere on the options modules.

 Today I did some tests, and took the top cover off and tried to listen
 carefully after the clicks. I am sure that it comes from a relay located
 somewhere under the KPA100 module. Not from KAT3 or the LP filter relays.

 There is no change in clicks if I put the radio in TX TEST mode or have 
 full
 RF output, so it is not RF or high current related.

 It very hard to hear if I close PTT or a key manually or tap XMIT, but it 
 is
 still there.

 CW mode , SSB mode or KPA100 disabled, it is still there every time T/R is
 switching.

 After a quick look at the K3 LPA schematic, I can se a small relay K1, 3 
 dB
 attenuator.  What is that relay doing ? Can that be a candidate for 
 causing
 the noise?

 I have just done the same tests with an other K3 that was factory build.
 Both radios produces exactly the same relay noise.

 I am using the lastest software in the radios now, but it have been the 
 same
 thing with older software.

 73 Classe SM3GSK

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Re: [Elecraft] firmware suggestion for k3

2009-02-05 Thread Lee Buller



May I suggest C and N  The C is short hand in CW for yes (I think it 
comes from the Spanish word for yes) and of course N would be no.

How about this...it would send the SWR on Morse.  HMM.  Cool

Could it be another menu item to turn it off or on?

Lee - K0WA


In our day and age it seems that Common Sense is in short supply.  If you don't 
have any Common Sense - get some Common Sense and use it.  If you can't find 
any Common Sense, ask for help from somebody who has some Common Sense.  Is 
Common Sense divine?

--- On Thu, 2/5/09, Gary Lee kb9...@arrl.net wrote:
From: Gary Lee kb9...@arrl.net
Subject: [Elecraft] firmware suggestion for k3
To: elecraft list elecraft@mailman.qth.net
Date: Thursday, February 5, 2009, 12:26 PM

I would like some sort of audible indication that a reasonable match has 
been obtained with the autotuner.
I sugggest k for a match, and s for swr alert.

Failing that, and maybe easier since you have the switch tones in place, a 
high pitched beep for good match and low for no good.

Being totally blind, this would sure increase my confidence operating the 
k3.

What you all think? 

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Re: [Elecraft] K3: Relay noise?

Steve Ellington wrote:

 Apparently Elecraft is not aware of the relay and very few of us can 
 hear it. I had my K3 for many months before hearing it. It's as if 
 something suddenly got it started clicking.  Either just a few rigs do 
 this or most of us are nearly deaf. Elecraft, can we get an answer on 
 this?

Steve,

I've heard it, on occasion, as far back as 2007. As I posted earlier, I 
believe it's either the acoustic side effect of a coil voltage shift 
(there are *many* relays running on the 12 V line), or a very minor T/R 
timing window, far too short to switch a relay.

It is not a problem. However, if I can get my rig to make the sound 
again, I'll put an o'scope on each relay's coil drive line to see if 
there's a tiny timing glitch.

73,
Wayne
N6KR

---

http://www.elecraft.com

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Re: [Elecraft] firmware suggestion for k3

2009-02-05 Thread Ian Maude

Lee Buller wrote:


 May I suggest C and N  The C is short hand in CW for yes (I 
 think it comes from the Spanish word for yes) and of course N would 
 be no.

C is normally sent if you choose the CW mode so I think this should be
avoided for SWR purposes.  The normal for modes is the first letter, L
for LSB, U for USB etc so these need to be avoided elsewhere.

73 Ian

-- 

Ian J Maude, G0VGS
SysOp GB7MBC  HB9DRV-9 DX Clusters
Member RSGB, GQRP, FISTS
K2 #4044 |K3 #455
http://www.amateurradiotraining.org


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Re: [Elecraft] CW Keyboards

2009-02-05 Thread Gary NL7Y



One thought I had when I ordered my K3 was whether or not a direct
keyboard/rig interface would ever be available, similar to what Icom has
recently offered via USB port with their IC-7600/7700. Arthritis is taking
the fun out of paddles for me. Down to a single slapper now.

Elecraft responded that it was an early thought, but not a current priority.
Maybe someday. Or maybe it's just too difficult to implement.

73 Gary NL7Y
-- 
View this message in context: 
http://n2.nabble.com/CW-Keyboards-tp2274724p2276694.html
Sent from the Elecraft mailing list archive at Nabble.com.

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Re: [Elecraft] firmware suggestion for k3

2009-02-05 Thread ON4WIX

Actually the Kenwood TS-570 had such a scheme implemented. Whenever one 
would press the mode button one would get some CW feedback and I've never 
been confused by that feedback. Signalling for high SWR was both on-screen 
and by an SWR message in CW.

73
Glenn ON4WIX
- Original Message - 
From: Ian Maude i...@gb7mbc.net
To: elecraft Reflector elecraft@mailman.qth.net
Sent: Thursday, February 05, 2009 8:12 PM
Subject: Re: [Elecraft] firmware suggestion for k3

 Lee Buller wrote:

 May I suggest C and N  The C is short hand in CW for yes (I
 think it comes from the Spanish word for yes) and of course N would
 be no.

 C is normally sent if you choose the CW mode so I think this should be
 avoided for SWR purposes.  The normal for modes is the first letter, L
 for LSB, U for USB etc so these need to be avoided elsewhere.

 73 Ian

 -- 

 Ian J Maude, G0VGS
 SysOp GB7MBC  HB9DRV-9 DX Clusters
 Member RSGB, GQRP, FISTS
 K2 #4044 |K3 #455
 http://www.amateurradiotraining.org

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Version: 8.0.233 / Virus Database: 270.10.18/1935 - Release Date: 02/04/09 
16:35:00

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Re: [Elecraft] K3: Relay noise?

2009-02-05 Thread Steve Ellington

Tim:
The Tudor Submariner should be louder than the K3. First of all, the K3 is 
not supposed to tick, secondly, the Tudor is noted for a loud tick 
accourding to this link: http://www.oysterquartz.net/the_5035_movement.htm

Steve Ellington
n...@carolina.rr.com
- Original Message - 
From: Tim Heasman t...@sideswiper.plus.com
To: Elecraft@mailman.qth.net
Sent: Thursday, February 05, 2009 1:08 PM
Subject: Re: [Elecraft] K3: Relay noise?

 Hi,

 I just had a listen to my K3 when keying.  I cannot hear the tick at all 
 in
 my left ear, but can hear it in my right ear providing I turn my ear 
 towards
 the top of the K3.  If I put my mechanical wrist watch (Tudor Submariner) 
 to
 my ear it is louder than the tick from the K3.

 73

 Tim

 gm4lmh

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16:35:00

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[Elecraft] OT: RF Clipper works with Elecraft

2009-02-05 Thread DOUGLAS ZWIEBEL

http://radio.tentec.com/accessories/715

Not sure we need this the K3.

I used to use an RF Clipper by DATONG (I still have it)...same concept
AF to RF to AF.  It worked REALLY WELL with my rig back then (which
had no capability for RF processing).  Probably talking 25+ years ago.

de Doug KR2Q
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Re: [Elecraft] OT: RF Clipper works with Elecraft

2009-02-05 Thread Lyle Johnson

 http://radio.tentec.com/accessories/715
 
 Not sure we need this the K3.

This function is built in to the K3 in SSB modes and available via the 
CMP control.

 I used to use an RF Clipper by DATONG (I still have it)...same concept
 AF to RF to AF.  It worked REALLY WELL with my rig back then (which
 had no capability for RF processing).  Probably talking 25+ years ago.

I still have an old Comdel Speech Procesor. It is variosuly referred to 
as a CSP-1 or a CSP-11 due to the edge of the rubber stamp they used to 
indicate model number and serial number often smeared and looked like a 
leading 1.  See review in March, 1967 QST.

I'll sell it for a *lot* less than the 715! :-)

73,

Lyle KK7P
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Re: [Elecraft] firmware suggestion for k3

This is also an excellent way to preserve and promote CW use :)

CW pops up in various consumer devices. I think it would be great for 
eyes-free texting on cellphones, too.

Wayne
N6KR

On Feb 5, 2009, at 11:26 AM, ON4WIX wrote:

 Actually the Kenwood TS-570 had such a scheme implemented. Whenever one
 would press the mode button one would get some CW feedback and I've 
 never
 been confused by that feedback. Signalling for high SWR was both 
 on-screen
 and by an SWR message in CW

---

http://www.elecraft.com

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[Elecraft] DXpedition computer for K3

2009-02-05 Thread DBellW6AQ

Does anyone use an ACER Netbook Aspire One with a K3?  I need  something 
really light for my one-man DXpeditions.
 
Thanks in advance, Dave, W6AQ
**Great Deals on Dell Laptops. Starting at $499. 
(http://pr.atwola.com/promoclk/10075x1217883258x1201191827/aol?redir=http://ad.doubleclick.
net/clk;211531132;33070124;e)
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Re: [Elecraft] OT: Changing hands for CW [End of Thread]

2009-02-05 Thread Eric Swartz - WA6HHQ, Elecraft

Lets rest this topic for now. I think we've squeezed all the pertinent 
info out of it ;-)

73,
Eric   WA6HHQ
Elecraft List Moderator
---

AD6XY wrote:
 I use a straight key. The hand I use for keying depends on which is most
 convenient at the time. Sometimes I will swap over in between words, if I
 need to pick up a pen for example or am getting cramps.

 I am not very competent with paddles and it makes little difference which
 hand I use, again, I can swap but I do not swap the sense of the paddles.

 Mike
   
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Re: [Elecraft] DXpedition computer for K3

2009-02-05 Thread Doug Faunt N6TQS +1-510-655-8604

I don't know about the Acer, but I'm using an eeePC 901 and it works
pretty well.  The only problem was that the Elecraft-provided Prolific
USB adapter overran LP-Bridge, but a FTDI-based serial port took care
of the problem.

73, doug

   From: dbellw...@aol.com
   Date: Thu, 5 Feb 2009 15:16:06 EST

   Does anyone use an ACER Netbook Aspire One with a K3?  I need  something 
   really light for my one-man DXpeditions.

   Thanks in advance, Dave, W6AQ
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[Elecraft] Ordered the K2 160M Kit.

2009-02-05 Thread Len [K4IWL]

 
With all the guys here in Southwest Florida having fun on 160,
I decided to join the fun and ordered the 160M kit for my K2.
I am designing a wire antenna for 160 for my 100' yard space.

Is there any QRP activities scheduled or unscheduled for the Orlando Florida
HamCation on February 13-15?
Is Eric planning to be there?

72,

N. T. LEN Carlson, K4IWL
Sarasota, Florida, USA  [GS: EL87RH]
www.qrz.com/k4iwl http://www.qrz.com/k4iwl 
www.w5fc.org/files/QRP%20Expressions.pdf
http://www.w5fc.org/files/QRP%20Expressions.pdf 
100% QRP and loving it:
K2 #848 [CW only], 
K1 #2112, 
Wilderness Radio SIERRA, 
Every conceivable RockMite, 
15M HiMite,  the new PFR3 Xceiver [ www.qrpkits.com
http://www.qrpkits.com/  ]
 'It is vain to do with more what can be done with less'
~~ William of Occam, English Philosopher and Franciscan Monk, Circa
1285-1349 ~~

 

 


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[Elecraft] [K3] Elecraft roofing filters

W4TV wrote:
The difference between the 250 and 400 Hz filters is not 
enough to be worthwhile (approximately 375 Hz vs. 430 Hz). 

Joe, what is your source for these numbers?  I've seen numbers 
like this mentioned previously on the reflector.

I recently tested my K3 CW roofing filters using the XG-2 generator 
at 7040 KHz (50 microvolts input) and KS7D's nice software package, 
K3 Filter Tools.  

Here's what I came up with, with AGC off and with the DSP 
bandwidth set at least as wide as 900 Hz for all tests (to isolate 
the effects of just the crystal roofing filter):

200 Hz, 5-pole: -6 dB BW = 210 Hz; -30 dB BW = 430 Hz

250 Hz, 8-pole: -6 dB BW = 260 Hz; -30 dB BW = 500 Hz

400 Hz, 8-pole: -6 dB BW = 380 Hz; -30 dB BW = 580 Hz

Note the uncertainty in each of the bandwidths above is 
plus or minus 20 Hz, because I ran these sweeps in 10 Hz 
increments to save time. (I'll repeat these tests using a 
1 or 2 Hz increment, when I have some spare time.) 

These tests on my filters (as well as my experience by ear) 
indicate there is an appreciable difference in the 250 and 
400 Hz 8-pole filters.  I've always wondered, too, about 
manufacturing tolerances on narrow crystal filters.  

73, 
Chuck Guenther  NI0C


   

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Re: [Elecraft] OT: Changing hands for CW [End of Thread]

2009-02-05 Thread Darwin, Keith

 

-Original Message-
From: Eric Swartz - WA6HHQ, Elecraft

I think we've squeezed all the pertinent info out of it ;-)

---

Right - topic's covered, nothing left.  Yet, on the other hand ...





Sorry, but I couldn't resist.  I'll return to being a good citizen now.

- Keith N1AS -
- K3 711 -
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Re: [Elecraft] DXpedition computer for K3

2009-02-05 Thread Julian, G4ILO




DBellW6AQ wrote:
 
 Does anyone use an ACER Netbook Aspire One with a K3?  I need  something 
 really light for my one-man DXpeditions.
 
I have a Samsung NC-10. The only trouble with these netbooks is that the
keyboards were designed for people with small hands and thin fingers. If
that isn't you, I would recommend spending a bit of time typing on one
before making a decision.

-
Julian, G4ILO. K2 #392  K3 #222.
http://www.g4ilo.com/ G4ILO's Shack   http://www.ham-directory.com/ Ham
Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 
-- 
View this message in context: 
http://n2.nabble.com/DXpedition-computer-for-K3-tp2277007p2277314.html
Sent from the Elecraft mailing list archive at Nabble.com.

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Re: [Elecraft] DXpedition computer for K3

2009-02-05 Thread Gregg

We are taking Acer Aspires to KP5. We have thoroughly tested them with
Win-Test, Microham router, MMTTY and various other programs and have not
uncovered any issues. While we won't be using K3s, I am certain that you
will not have any problems.

We shopped around and were able to save about 10% over the current price on
the street. Contact me off-list for the details.

Gregg
W6IZT

Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Faunt N6TQS
+1-510-655-8604
Sent: Thursday, February 05, 2009 3:40 PM
To: dbellw...@aol.com
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] DXpedition computer for K3

I don't know about the Acer, but I'm using an eeePC 901 and it works
pretty well.  The only problem was that the Elecraft-provided Prolific
USB adapter overran LP-Bridge, but a FTDI-based serial port took care
of the problem.

73, doug

   From: dbellw...@aol.com
   Date: Thu, 5 Feb 2009 15:16:06 EST

   Does anyone use an ACER Netbook Aspire One with a K3?  I need  something 
   really light for my one-man DXpeditions.

   Thanks in advance, Dave, W6AQ
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Re: [Elecraft] DXpedition computer for K3

2009-02-05 Thread W0MU Mike Fatchett

I picked up an Averatec laptop at Wal-Mart a number of years ago.  It is
small, lightweight pretty quick.  I have never tried it for logging.  Used
it for GPS navigation in my truck.  The keyboard is smaller than I like but
it is very usable.

Good luck! 


A slip of the foot you may soon recover, but a slip of the tongue you may
never get over. Ben Franklin
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gregg
Sent: Thursday, February 05, 2009 2:59 PM
To: 'Doug Faunt N6TQS +1-510-655-8604'; dbellw...@aol.com
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] DXpedition computer for K3

We are taking Acer Aspires to KP5. We have thoroughly tested them with
Win-Test, Microham router, MMTTY and various other programs and have not
uncovered any issues. While we won't be using K3s, I am certain that you
will not have any problems.

We shopped around and were able to save about 10% over the current price on
the street. Contact me off-list for the details.

Gregg
W6IZT

Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Faunt N6TQS
+1-510-655-8604
Sent: Thursday, February 05, 2009 3:40 PM
To: dbellw...@aol.com
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] DXpedition computer for K3

I don't know about the Acer, but I'm using an eeePC 901 and it works pretty
well.  The only problem was that the Elecraft-provided Prolific USB adapter
overran LP-Bridge, but a FTDI-based serial port took care of the problem.

73, doug

   From: dbellw...@aol.com
   Date: Thu, 5 Feb 2009 15:16:06 EST

   Does anyone use an ACER Netbook Aspire One with a K3?  I need  something 
   really light for my one-man DXpeditions.

   Thanks in advance, Dave, W6AQ
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Re: [Elecraft] [K3] Elecraft roofing filters



 The difference between the 250 and 400 Hz filters is not 
 enough to be worthwhile (approximately 375 Hz vs. 430 Hz). 
 
 Joe, what is your source for these numbers?  I've seen numbers 
 like this mentioned previously on the reflector.

My source is Elecraft: www.elecraft.com/K3/K3_8_pole_plots.htm

Look specifically at the last two plots which show: 

   KFL3A-400  KFL3A-250 
  -6 dB  435 Hz 370 Hz 
 -60 dB  935 Hz 785 Hz 
   SF2.15:1 2.12:1  

INRAD do not publish the curves for the Elecraft (or Yaesu 
8215 KHz) 250 Hz filter.  However, they do show the curve 
for the 8830 KHz (Kenwood) version of the same filter and 
it shows a similar percentage bandwidth (367.5/845 Hz at 
-6/60dB). 

 Here's what I came up with, with AGC off and with the DSP 
 bandwidth set at least as wide as 900 Hz for all tests (to 
 isolate the effects of just the crystal roofing filter):
 
 200 Hz, 5-pole: -6 dB BW = 210 Hz; -30 dB BW = 430 Hz
 
 250 Hz, 8-pole: -6 dB BW = 260 Hz; -30 dB BW = 500 Hz
 
 400 Hz, 8-pole: -6 dB BW = 380 Hz; -30 dB BW = 580 Hz

Did you run those tests in a Data mode or with the CW pitch 
set to 800 Hz?  If not, the low frequency skirts will be 
sharpened significantly and the measured bandwidth will 
less than the roofing filter.  With a CW pitch of 560 Hz 
I measure 10% less bandwidth than in DATA (CF = 1500 Hz or 
2210 Hz).  If I reduce the pitch to 300 Hz, the measured 
bandwidth is further reduced (due to the DSP filter's low 
frequency cut-off). 

73, 

   ... Joe, W4TV 
 


 -Original Message-
 From: elecraft-boun...@mailman.qth.net 
 [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of ni0c
 Sent: Thursday, February 05, 2009 3:47 PM
 To: elecraft@mailman.qth.net
 Subject: [Elecraft] [K3] Elecraft roofing filters
 
 
 W4TV wrote:
 The difference between the 250 and 400 Hz filters is not 
 enough to be worthwhile (approximately 375 Hz vs. 430 Hz). 
 
 Joe, what is your source for these numbers?  I've seen numbers 
 like this mentioned previously on the reflector.
 
 I recently tested my K3 CW roofing filters using the XG-2 generator 
 at 7040 KHz (50 microvolts input) and KS7D's nice software package, 
 K3 Filter Tools.  
 
 Here's what I came up with, with AGC off and with the DSP 
 bandwidth set at least as wide as 900 Hz for all tests (to isolate 
 the effects of just the crystal roofing filter):
 
 200 Hz, 5-pole: -6 dB BW = 210 Hz; -30 dB BW = 430 Hz
 
 250 Hz, 8-pole: -6 dB BW = 260 Hz; -30 dB BW = 500 Hz
 
 400 Hz, 8-pole: -6 dB BW = 380 Hz; -30 dB BW = 580 Hz
 
 Note the uncertainty in each of the bandwidths above is 
 plus or minus 20 Hz, because I ran these sweeps in 10 Hz 
 increments to save time. (I'll repeat these tests using a 
 1 or 2 Hz increment, when I have some spare time.) 
 
 These tests on my filters (as well as my experience by ear) 
 indicate there is an appreciable difference in the 250 and 
 400 Hz 8-pole filters.  I've always wondered, too, about 
 manufacturing tolerances on narrow crystal filters.  
 
 73, 
 Chuck Guenther  NI0C
 
 

 

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[Elecraft] Looking ahead to Field Day - roofing filter question

2009-02-05 Thread NZ0T


I plan to take my K3 to Scorpion ranch for our annual WS4Y Field Day op.  I
have no roofing filters at present and frankly have been pretty well pleased
in the little time I have spent in contest conditions.  The DSP filters work
quite well.  Is it worth the money for a roofing filter and is the 500 Hz 5
pole filter adequate?  

Times are tough and money tight here so I want to make sure it's worth the
$100!  But I also would like to wow the other guys at FD =^D

73, Bill NZ0T
-- 
View this message in context: 
http://n2.nabble.com/Looking-ahead-to-Field-Day---roofing-filter-question-tp2277699p2277699.html
Sent from the Elecraft mailing list archive at Nabble.com.

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Re: [Elecraft] firmware suggestion for k3

2009-02-05 Thread Dave G4AON

I used to have a TS-570 and the audio indication of SWR on auto tune was
just fine, lets not re-invent another set of beeps.

73 Dave, G4AON
K3/100 #80

Actually the Kenwood TS-570 had such a scheme implemented. Whenever one
would press the mode button one would get some CW feedback and I've never
been confused by that feedback. Signalling for high SWR was both on-screen
and by an SWR message in CW.

73
Glenn ON4WIX
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Re: [Elecraft] [K3] Elecraft roofing filters

W4TV wrote: 


 My source is Elecraft: www.elecraft.com/K3/K3_8_pole_plots.htm
 
 Look specifically at the last two plots which show: 
 
KFL3A-400  KFL3A-250 
   -6 dB  435 Hz 370 Hz 
  -60 dB  935 Hz 785 Hz 
SF2.15:1 2.12:1  
 
 INRAD do not publish the curves for the Elecraft (or Yaesu 
 8215 KHz) 250 Hz filter.  However, they do show the curve 
 for the 8830 KHz (Kenwood) version of the same filter and 
 it shows a similar percentage bandwidth (367.5/845 Hz at 
 -6/60dB). 
 

NI0C responds:

I'm still wondering what the tolerance is on such published curves.  

 
 Did you run those tests in a Data mode or with the CW pitch 
 set to 800 Hz?  If not, the low frequency skirts will be 
 sharpened significantly and the measured bandwidth will 
 less than the roofing filter.  With a CW pitch of 560 Hz 
 I measure 10% less bandwidth than in DATA (CF = 1500 Hz or 
 2210 Hz).  If I reduce the pitch to 300 Hz, the measured 
 bandwidth is further reduced (due to the DSP filter's low 
 frequency cut-off). 
 
 73, 
 
... Joe, W4TV 

NI0C responds:

My testing was done in CW mode with the pitch in the 
low 300's (320 Hz, as I recall).  So, when I repeat the tests,
I'll vary the pitch and see what happens, say 300 Hz, 600 hz, 
and 800 Hz.  

73  Thanks, Joe,  for your info!

Chuck Guenther NI0C



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Re: [Elecraft] firmware suggestion for k3

2009-02-05 Thread Arie Kleingeld PA3A

Wayne,

I hope that this is not high on your list.

With all respect to everyone, this does not really add something to the
performance of the K3.

In my list of ranking software releases:
1. bugfix  
2. nice to have, can do without  
3. improvement in essential performance / extending TX-RX capabilities  
4. need to have  

This is a number 2.


73,
Arie PA3A


-Oorspronkelijk bericht-
Van: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] Namens wayne burdick
Verzonden: donderdag 5 februari 2009 20:58
Aan: ON4WIX
CC: elecraft Reflector
Onderwerp: Re: [Elecraft] firmware suggestion for k3


This is also an excellent way to preserve and promote CW use :)

CW pops up in various consumer devices. I think it would be great for 
eyes-free texting on cellphones, too.

Wayne
N6KR

On Feb 5, 2009, at 11:26 AM, ON4WIX wrote:

 Actually the Kenwood TS-570 had such a scheme implemented. Whenever 
 one would press the mode button one would get some CW feedback and 
 I've never been confused by that feedback. Signalling for high SWR was

 both on-screen
 and by an SWR message in CW


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Re: [Elecraft] firmware suggestion for k3

2009-02-05 Thread Ian Maude

Arie Kleingeld PA3A wrote:
 Wayne,

 I hope that this is not high on your list.

 With all respect to everyone, this does not really add something to the
 performance of the K3.

 In my list of ranking software releases:
 1. bugfix  
 2. nice to have, can do without  
 3. improvement in essential performance / extending TX-RX capabilities  
 4. need to have  

 This is a number 2.
   
This of course depends on whether you are blind or partially sighted I 
guess?

73 Ian

-- 

Ian J Maude, G0VGS
SysOp GB7MBC  HB9DRV-9 DX Clusters
Member RSGB, GQRP, FISTS
K2 #4044 |K3 #455
http://www.amateurradiotraining.org 

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Re: [Elecraft] OT: RF Clipper works with Elecraft

2009-02-05 Thread Grant Youngman

Before the 715 is dismissed out of hand and chalked up to unnecessary  
on the K3  or some other rig doesn't work right,  consider that the  
latest releases of Orion/Orion II code have very effective RF speech  
processing - as good as any.   But there is a difference between RF  
compression (the usual form of processing in DSP radios) and clipping  
(a la the 715 and others that came before it)  in terms of how the  
signal stands out from the crowd.  Having said that, I don't know the  
details of the K3 implementation, but the spec sheet refers to  
compression.

It may well be a useful gizmo for contesters regardless of radio  
brand, and certainly for users of older radios -- of which there are  
many still out there.

I'd just take this as a very modern twist on what was once a standard  
accessory, that isn't necessarily dead yet in terms of usefulness :-)

Grant/NQ5T


On Feb 5, 2009, at 1:36 PM, DOUGLAS ZWIEBEL wrote:

 http://radio.tentec.com/accessories/715

 Not sure we need this the K3.

 I used to use an RF Clipper by DATONG (I still have it)...same concept
 AF to RF to AF.  It worked REALLY WELL with my rig back then (which
 had no capability for RF processing).  Probably talking 25+ years ago.

 de Doug KR2Q
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[Elecraft] FS: Heil ProSet headset lightly used

2009-02-05 Thread Jim Spears

I have too many headsets.  I want to sell one Heil Proset headset.  This is
the Icom version, same as sold by Elecraft.  It works just fine with K3,
just need one menu setting for bias.  I am using exact same unit with K3/100
s/n 2295

 

Asking 100 bucks.  I will ship within USA and absorb PayPal fee.

 

Jim Spears

N1NK

K3/100 s/n 2295

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Re: [Elecraft] OT: RF Clipper works with Elecraft

2009-02-05 Thread Lyle Johnson

 ...I don't know the details of the K3 implementation,
 but the spec sheet refers to compression.

In SSB modes, the K3 performs clipping at the 15 kHz IF, then bandpass 
filters the result. It is further filtered by the 8.215 MHz IF quartz 
filter.

Thus, the SSB speech processor used in the K3 is IF envelope clipping. 
It is preceded by a 8-band equalizer, so the radio can be adjusted for 
from natural sounding, though punchy to just plain awful if you wish 
it to be :-)

73,

Lyle KK7P
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Re: [Elecraft] [K3] Elecraft roofing filters

2009-02-05 Thread Bill W4ZV




ni0c wrote:
 
 My testing was done in CW mode with the pitch in the 
 low 300's (320 Hz, as I recall).  So, when I repeat the tests,
 I'll vary the pitch and see what happens, say 300 Hz, 600 hz, 
 and 800 Hz.
 

Another person who likes a low pitch!  This really affects what you will
hear because the MCU firmware shifts the bandpass so that the low end always
truncates at ~200 Hz.  If you use a nominal 500 Hz filter, this means it
will be positioned from 200-700 Hz, so you'll hear signals 400 Hz above your
zero beat frequency of 300.  This would be equivalent to an 800 Hz filter if
centered.  The K3 operates differently from Orion which I know you had
before.  This is exactly why I sold my 1000 Hz filter.  With a nominal
bandwidth of 1100 Hz and 300 Hz PITCH, I was hearing signals 1 kHz above my
zero beat QRG (i.e. my actual bandpass was 200-1300 Hz).  1 kHz above my QRG
is not practical on any sort of crowded band.  If the band is not crowded
with strong signals then the stock 2.7k filter is about as effective.

73,  Bill

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Sent from the [K3] mailing list archive at Nabble.com.

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[Elecraft] WHY HIGH RF OUTPUT???

2009-02-05 Thread JIM DAVIS

Gentlemen,

As measured on a BIRD TRU-LINE (Mod43) with a 250w. slug our RF out from our 
K3 is:

80m:  180w.
40m: 150w.

WHY???

I ask this because our WATT METER is a accurate device and no one can dispute 
its accuracy!!!

Regards,

Jim/nn6ee











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Re: [Elecraft] WHY HIGH RF OUTPUT???

2009-02-05 Thread Roger Stein

What is your corresponding dc voltage and current?
Is your dummy load 50 ohm?

About 18 amperes is what you would expect at 100 watts RF out.

73 Roger K7SJ
K3 #75

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net]on Behalf Of JIM DAVIS
Sent: Thursday, February 05, 2009 3:58 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] WHY HIGH RF OUTPUT???


Gentlemen,

As measured on a BIRD TRU-LINE (Mod43) with a 250w. slug our RF out from our 
K3 is:

80m:  180w.
40m: 150w.

WHY???

I ask this because our WATT METER is a accurate device and no one can dispute 
its accuracy!!!

Regards,

Jim/nn6ee











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Re: [Elecraft] WHY HIGH RF OUTPUT???

2009-02-05 Thread Greg - AB7R

Jim,

Did you perform the TXG calibration process on all bands at exactly 5 and 50 
watts?  What are you doing when 
taking the readings -- using the TUNE buttone (not ANT TUNE)?


-
73,
Greg - AB7R
Whidbey Island WA
NA-065


On Thu Feb  5 16:07 , Roger Stein  sent:

What is your corresponding dc voltage and current?
Is your dummy load 50 ohm?

About 18 amperes is what you would expect at 100 watts RF out.

73 Roger K7SJ
K3 #75

-Original Message-
From: elecraft-boun...@mailman.qth.net
[elecraft-boun...@mailman.qth.net','','','')elecraft-boun...@mailman.qth.net]on
 Behalf Of JIM DAVIS
Sent: Thursday, February 05, 2009 3:58 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] WHY HIGH RF OUTPUT???


Gentlemen,

As measured on a BIRD TRU-LINE (Mod43) with a 250w. slug our RF out from our 
K3 is:

80m:  180w.
40m: 150w.

WHY???

I ask this because our WATT METER is a accurate device and no one can dispute 
its accuracy!!!

Regards,

Jim/nn6ee











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Re: [Elecraft] WHY HIGH RF OUTPUT???

2009-02-05 Thread Jim Garland

Hi Jim,
Sounds to me like you've got a bad slug in your Bird wattmeter. If they're
dropped or jarred they can change calibration significantly.  Also, you
didn't mention the frequency range for the slug. If it's designed for VHF,
it will read high on HF. To me, the numbers you're getting don't sound
plausible. BTW, the correct name of the Bird 43 is Thruline, not
Tru-Line.

73,
Jim W8ZR 

 -Original Message-
 From: elecraft-boun...@mailman.qth.net [mailto:elecraft-
 boun...@mailman.qth.net] On Behalf Of JIM DAVIS
 Sent: Thursday, February 05, 2009 4:58 PM
 To: elecraft@mailman.qth.net
 Subject: [Elecraft] WHY HIGH RF OUTPUT???
 
 Gentlemen,
 
 As measured on a BIRD TRU-LINE (Mod43) with a 250w. slug our RF out from
 our K3 is:
 
 80m:  180w.
 40m: 150w.
 
 WHY???
 
 I ask this because our WATT METER is a accurate device and no one can
 dispute its accuracy!!!
 
 Regards,
 
 Jim/nn6ee
 
 
 
 
 
 
 
 
 
 
 
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Re: [Elecraft] [K3] Elecraft roofing filters



 I'm still wondering what the tolerance is on such published 
 curves. 

I would not be so much concerned about tolerance as sampling 
error on the curves.  Still, the Elecraft curves are generally 
similar to those given by INRAD for the same filter or those 
with a similar (e.g., 8215 or 8830 KHz) center frequency and 
bandwidth.  For example, Inrad's curves for the KFL3A-2.1K  
KFL3A-1.0 are identical to those from Elecraft ... Inrad's 
curves are wider for the KFL3A-6K  KFL3A-400 and Elecraft's 
cure is wider for the KFL3A-1.8K.  (Inrad does not publish 
curves for the KFL3A-2.8K or KFL3A-250 ... nor do they have 
any information on the 1500 and 500 Hz custom filters) 

 My testing was done in CW mode with the pitch in the 
 low 300's (320 Hz, as I recall). 

The DSP begins to roll off at 200 Hz even if LO = 0.00.  Any 
measurement where FC (Pitch) is less than [BW60/2 + 200] will 
be inaccurate on the skirts and any measurement where FC is 
less than BW6/2 + 200 will have essentially identical lower 
frequency responses.

73, 

   ... Joe, W4TV 
   



 -Original Message-
 From: ni0c [mailto:n...@earthlink.net] 
 Sent: Thursday, February 05, 2009 5:42 PM
 To: li...@subich.com; elecraft@mailman.qth.net
 Subject: Re: [Elecraft] [K3] Elecraft roofing filters
 
 
 W4TV wrote: 
 
 
  My source is Elecraft: www.elecraft.com/K3/K3_8_pole_plots.htm
  
  Look specifically at the last two plots which show:
  
 KFL3A-400  KFL3A-250 
-6 dB  435 Hz 370 Hz 
   -60 dB  935 Hz 785 Hz 
 SF2.15:1 2.12:1  
  
  INRAD do not publish the curves for the Elecraft (or Yaesu
  8215 KHz) 250 Hz filter.  However, they do show the curve 
  for the 8830 KHz (Kenwood) version of the same filter and 
  it shows a similar percentage bandwidth (367.5/845 Hz at 
  -6/60dB). 
  
 
 NI0C responds:
 
 I'm still wondering what the tolerance is on such published curves.  
 
  
  Did you run those tests in a Data mode or with the CW pitch 
  set to 800 Hz?  If not, the low frequency skirts will be 
  sharpened significantly and the measured bandwidth will 
  less than the roofing filter.  With a CW pitch of 560 Hz 
  I measure 10% less bandwidth than in DATA (CF = 1500 Hz or 
  2210 Hz).  If I reduce the pitch to 300 Hz, the measured 
  bandwidth is further reduced (due to the DSP filter's low 
  frequency cut-off). 
  
  73, 
  
 ... Joe, W4TV 
 
 NI0C responds:
 
 My testing was done in CW mode with the pitch in the 
 low 300's (320 Hz, as I recall).  So, when I repeat the tests,
 I'll vary the pitch and see what happens, say 300 Hz, 600 hz, 
 and 800 Hz.  
 
 73  Thanks, Joe,  for your info!
 
 Chuck Guenther NI0C
 
 
 

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Re: [Elecraft] WHY HIGH RF OUTPUT???

2009-02-05 Thread Dale Putnam


Jim,
 Is this being measured into a known 50 ohm load? Or is it a tuned circuit of 
some sort?
If the load is somewhat reactive at certain freq. or if the coax connecting the 
meter into the circuit has an issue with certain freq. then it is very likely 
to attain the different readings on a wattmeter. 
  --... ...--
 Dale - WC7S in Wy From: nn...@astound.net To: elecraft@mailman.qth.net 
Date: Thu, 5 Feb 2009 15:58:05 -0800 Subject: [Elecraft] WHY HIGH RF 
OUTPUT???  Gentlemen,  As measured on a BIRD TRU-LINE (Mod43) with a 250w. 
slug our RF out from our K3 is:  80m: 180w. 40m: 150w.  WHY???  I ask 
this because our WATT METER is a accurate device and no one can dispute its 
accuracy!!!  Regards,  Jim/nn6ee
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Re: [Elecraft] Ordered the K2 160M Kit.

2009-02-05 Thread Dale Putnam


Welcome to 160.. ( I wanted to be first *G*) 
I have done an extensive study of 160 antennas for small lots... and yours sure 
fits that...
If you are interested, we could figure something out that would do a good job 
for you.
One that is a fav of mine is a 40 - 60 foot tall NORD, with and Omega match at 
the bottom, 
and 32 radials, say 20 - 30 foot long. Uses four down leads, for guying and for 
top loading. 
 Will be watching for you on 160... I'll be there tonight about 0230, on 1810, 
if you have something to listen 
with. 
  It is a fun band, and right now, not too noisy, yet. --... ...-- Dale - WC7S 
in Wy From: k4...@comcast.net To: elecraft@mailman.qth.net Date: Thu, 5 Feb 
2009 15:41:18 -0500 Subject: [Elecraft] Ordered the K2 160M Kit.   With all 
the guys here in Southwest Florida having fun on 160, I decided to join the 
fun and ordered the 160M kit for my K2. I am designing a wire antenna for 160 
for my 100' yard space.  Is there any QRP activities scheduled or unscheduled 
for the Orlando Florida HamCation on February 13-15? Is Eric planning to be 
there?  72,  N. T. LEN Carlson, K4IWL Sarasota, Florida, USA [GS: 
EL87RH] www.qrz.com/k4iwl http://www.qrz.com/k4iwl  
www.w5fc.org/files/QRP%20Expressions.pdf 
http://www.w5fc.org/files/QRP%20Expressions.pdf  100% QRP and loving it: K2 
#848 [CW only],  K1 #2112,  Wilderness Radio SIERRA,  Every conceivable 
RockMite,  15M HiMite,  the new PFR3 Xceiver [ www.qrpkits.com 
http://www.qrpkits.com/ ] 'It is vain to do with more what can be done with 
less' ~~ William of Occam, English Philosopher and Franciscan Monk, Circa 
1285-1349 ~~   
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[Elecraft] K3 - No power / SWR metering

2009-02-05 Thread Nick-WA5BDU

Is this an operator error, or what?

This evening I don't get any SWR or watts metering on my K3, just CMP 
and ALC, like I was on SSB.  I'm fairly sure that earlier in the evening 
I did have the expected SWR and power indications.  When I transmit, I 
get 6 bars of ALC and no bars of SWR, regardless of power level.  S 
meter works, CWT on/off works. 

Here's what I tried -

Cycled through all modes.  Recalled memories.  A/B switch (I don't have 
the sub receiver).  Power off and back on.  Re-loaded firmware (2.80).

Is there a configuration item I might have wrong?

Thanks,

Nick, WA5BDU

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[Elecraft] remote on off of K3

2009-02-05 Thread Don Greenbaum

Just downloaded HRD and it controls the radio just fine, HOWEVER, there is no 
CAT connection when the radio is off rendering HRD useless from a remote 
location.

Anyone know how to remotely turn on the K3 from the desktop?  (I use logmein to 
see it).

Don
N1DG

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Re: [Elecraft] Firmware / Programming command request

2009-02-05 Thread Dick Dievendorff

Up/Down taps to the bandswitch are problematic because users can remove
bands from the rotation.  See firmware notes on MCU 2.58 (Mapping out
selected bands).  My bandswitch doesn't take me through 60 meters, for
example.

Dick, K6KR


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Coleman
Sent: Thursday, February 05, 2009 6:14 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Firmware / Programming command request

I would like to see a command that would provide a simple direct band 
change.  

Right now the K3 'knows' the last frequency and mode used on each band, 
tap BAND UP or DOWN and the K3 returns to the last used freq and mode on 
the selected band. 

Programatically there are two ways to change bands now:
1) Issue  FA or FB  which would override the last used frequency
2) Issue a series of UP / DOWN taps to the BAND switch

I'm writing some code and would like to be able to return the K3 to it's 
initial state on each band when the application is finished.  #1 won't 
do it and #2 is slow (and noisy!).

This should be pretty low on the todo list, but I'd like to see get it 
on the list!

THX  73, Bill   N2BC


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Re: [Elecraft] K3 - No power / SWR metering

2009-02-05 Thread Lyle Johnson

 This evening I don't get any SWR or watts metering on my K3, just CMP 
 and ALC,

HOLD the METER button (long press of DISPLAY) to toggle between the 
ALC/CMP and SWR/PWR displays.

73,

Lyle KK7P
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Re: [Elecraft] K3 orders now being built immediately to order

2009-02-05 Thread W0FK

Congratulations. This is hopefully good news, reflecting a streamilned
manufacturing process and not soft demand due to the economy.

Now that you've caught up, how about:

* Releasing the Panadapter at Dayton!
* Announcing the availability of the KPA-800 and KPA-1500 amps!

Lou, W0FK

Eric Swartz - WA6HHQ, Elecraft wrote:

We have just updated our shipping status page:

We have now caught up with our K3 backlog. (whew!)

New K3s are custom built or kitted for each new order. :-)

* New K3 kit orders are shipped 2-5 days after the order is received.

* New K3-F (factory assembled) orders are are custom built to order with
your specific options and will ship 5-10 days (or less) after the order
is received.

IMPORTANT: K3 internet orders receive an automatic confirmation email.
Since new K3 orders are put immediately into our production flow,
additional reconfirmation emails will not be sent.

If your K3 was backlogged and you have not received a follow up email,
please contact us. (ka...@elecraft.com)

73, Eric WA6HHQ

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:-D=)=)=)

-
St. Louis, MO
K3 #2513
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Re: [Elecraft] K3 - No power / SWR metering

2009-02-05 Thread Nick-WA5BDU

Ah, better to be a knucklehead than to have a hardware problem.  Guess 
I'll keep my hands in my pockets and fingers off the buttons for a while.

Now, could you help me with my VCR ...

73--Nick, WA5BDU

Lyle Johnson wrote:
 This evening I don't get any SWR or watts metering on my K3, just CMP 
 and ALC,

 HOLD the METER button (long press of DISPLAY) to toggle between the 
 ALC/CMP and SWR/PWR displays.

 73,

 Lyle KK7P


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Re: [Elecraft] DXpedition computer for K3

2009-02-05 Thread ww2r2

Yes, I do

As well as running the usual apps (writelog, mmtty mmstv and vac) I also
have it running the sdriq as a pan adaptor

dave

ww2r

--

Message: 28
Date: Thu, 5 Feb 2009 15:16:06 EST
From: dbellw...@aol.com
Subject: [Elecraft] DXpedition computer for K3
To: elecraft@mailman.qth.net
Message-ID: ccf.4904db35.36bca...@aol.com
Content-Type: text/plain; charset=us-ascii

Does anyone use an ACER Netbook Aspire One with a K3?  I need  something
really light for my one-man DXpeditions.

Thanks in advance, Dave, W6AQ

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Re: [Elecraft] [K3] Elecraft roofing filters

2009-02-05 Thread Guy Olinger, K2AV

Having used three different K3's equipped with 4 different sets of 250  400 hz 
8 poles in overload city major contests, the usefulness of these filters is 
belied by the apparent closeness of numbers.

In practice we have found that associating the 400 with a DSP width of 450, and 
the 250 with a DSP width of 350 has been extremely useful, however too close 
by the numbers that may look on paper. 

We use 450 for running for as long as it may last, and when the inevitable 30 
over 9 crowder squeezes down on us, I reduce to 350 and if that isn't enough, 
*ADDITIONALLY* shift the center away 50 hz more. This combination plus the 
noise blanker for key clicks has worked extremely well. (Having 50 Hz 
granularity on the CW shift/widths would be *SO* useful here...) 

I have measured the combined (roofing+DSP) drop on the steepest part of the 
skirts at ~12 db per 10 Hz with these two 8 pole filters. So bringing in the 
skirt only 30 or 40 Hz is enough to push down the crowder quite a bit, 
usually well out of hardware AGC, without narrowing the listening window to the 
point of missing QSO points and multipliers from all the inevitable 
off-frequency callers. 

Anyone who asks us what filters to buy for CW contesting, we tell them 400/250 
8 pole set to 450/350.  Tried and true, not theory. 

W4TV and I will just have to agree to disagree. 

73, Guy.
  - Original Message - 
  From: ni0c 
  To: elecraft@mailman.qth.net 
  Sent: Thursday, February 05, 2009 4:47 PM
  Subject: [Elecraft] [K3] Elecraft roofing filters


  W4TV wrote:
  The difference between the 250 and 400 Hz filters is not 
  enough to be worthwhile (approximately 375 Hz vs. 430 Hz). 

  Joe, what is your source for these numbers?  I've seen numbers 
  like this mentioned previously on the reflector.

  I recently tested my K3 CW roofing filters using the XG-2 generator 
  at 7040 KHz (50 microvolts input) and KS7D's nice software package, 
  K3 Filter Tools.  

  Here's what I came up with, with AGC off and with the DSP 
  bandwidth set at least as wide as 900 Hz for all tests (to isolate 
  the effects of just the crystal roofing filter):

  200 Hz, 5-pole: -6 dB BW = 210 Hz; -30 dB BW = 430 Hz

  250 Hz, 8-pole: -6 dB BW = 260 Hz; -30 dB BW = 500 Hz

  400 Hz, 8-pole: -6 dB BW = 380 Hz; -30 dB BW = 580 Hz

  Note the uncertainty in each of the bandwidths above is 
  plus or minus 20 Hz, because I ran these sweeps in 10 Hz 
  increments to save time. (I'll repeat these tests using a 
  1 or 2 Hz increment, when I have some spare time.) 

  These tests on my filters (as well as my experience by ear) 
  indicate there is an appreciable difference in the 250 and 
  400 Hz 8-pole filters.  I've always wondered, too, about 
  manufacturing tolerances on narrow crystal filters.  

  73, 
  Chuck Guenther  NI0C


 




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Re: [Elecraft] [K3] Elecraft roofing filters

2009-02-05 Thread Guy Olinger, K2AV

That's a wish for 10 Hz shift/width below, not 50 :)
  - Original Message - 
  From: Guy Olinger, K2AV 
  To: ni0c ; elecraft@mailman.qth.net 
  Sent: Tuesday, August 04, 2009 10:14 PM
  Subject: Re: [Elecraft] [K3] Elecraft roofing filters

  Having used three different K3's equipped with 4 different sets of 250  400 
hz 8 poles in overload city major contests, the usefulness of these filters is 
belied by the apparent closeness of numbers.

  In practice we have found that associating the 400 with a DSP width of 450, 
and the 250 with a DSP width of 350 has been extremely useful, however too 
close by the numbers that may look on paper. 

  We use 450 for running for as long as it may last, and when the inevitable 30 
over 9 crowder squeezes down on us, I reduce to 350 and if that isn't enough, 
*ADDITIONALLY* shift the center away 50 hz more. This combination plus the 
noise blanker for key clicks has worked extremely well. (Having 50 Hz 
granularity on the CW shift/widths would be *SO* useful here...) 

  I have measured the combined (roofing+DSP) drop on the steepest part of the 
skirts at ~12 db per 10 Hz with these two 8 pole filters. So bringing in the 
skirt only 30 or 40 Hz is enough to push down the crowder quite a bit, 
usually well out of hardware AGC, without narrowing the listening window to the 
point of missing QSO points and multipliers from all the inevitable 
off-frequency callers. 

  Anyone who asks us what filters to buy for CW contesting, we tell them 
400/250 8 pole set to 450/350.  Tried and true, not theory. 

  W4TV and I will just have to agree to disagree. 

  73, Guy.
- Original Message - 
From: ni0c 
To: elecraft@mailman.qth.net 
Sent: Thursday, February 05, 2009 4:47 PM
Subject: [Elecraft] [K3] Elecraft roofing filters

W4TV wrote:
The difference between the 250 and 400 Hz filters is not 
enough to be worthwhile (approximately 375 Hz vs. 430 Hz). 

Joe, what is your source for these numbers?  I've seen numbers 
like this mentioned previously on the reflector.

I recently tested my K3 CW roofing filters using the XG-2 generator 
at 7040 KHz (50 microvolts input) and KS7D's nice software package, 
K3 Filter Tools.  

Here's what I came up with, with AGC off and with the DSP 
bandwidth set at least as wide as 900 Hz for all tests (to isolate 
the effects of just the crystal roofing filter):

200 Hz, 5-pole: -6 dB BW = 210 Hz; -30 dB BW = 430 Hz

250 Hz, 8-pole: -6 dB BW = 260 Hz; -30 dB BW = 500 Hz

400 Hz, 8-pole: -6 dB BW = 380 Hz; -30 dB BW = 580 Hz

Note the uncertainty in each of the bandwidths above is 
plus or minus 20 Hz, because I ran these sweeps in 10 Hz 
increments to save time. (I'll repeat these tests using a 
1 or 2 Hz increment, when I have some spare time.) 

These tests on my filters (as well as my experience by ear) 
indicate there is an appreciable difference in the 250 and 
400 Hz 8-pole filters.  I've always wondered, too, about 
manufacturing tolerances on narrow crystal filters.  

73, 
Chuck Guenther  NI0C

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[Elecraft] Adding DSR (serial port line 6) interrupt in a Firmware Update?

2009-02-05 Thread Lance Collister

I recall that there was an email recently that the K3's internal DVR was 
interrupted when the microphone or footswitch is activated to manually 
transmit. 
I am very interested to learn if it might be possible at the same time to also 
send an interrupt signal to the unused DSR line (serial pin #6).  This 
interrupt 
is used by several computer programs (TRX-Manager, Multikeyer, Voice Keyer 
Express) at my station that automatically key the rig and send CW (via the 
DTRor 
SSB messages.

Although these programs have primarily been used here for VHF meteor scatter 
schedules, they are also very handy for working contests and other band 
openings. 
  The K3 is of course well suited to work with any such external computer 
programs 
due to its built-in audio interface.  However, when the operator switches to 
manually keying the K3, it would be really great if an interrupt could be sent 
to 
the computer programs via the serial port so that they stop their automatic 
keying 
of the PTT line and also stop sending audio or CW signals to the K3.  Adding a 
computer interrupt on the (currently unused) DSR line would accomplish this and 
broaden the flexibility of the K3.  Thanks for your kind consideration!

VY 73, Lance

-- 
Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8)
P.O. Box 73
Frenchtown, MT  59834  USA
QTH: DN27UB
TEL: (406) 626-5728   URL: http://www.bigskyspaces.com/w7gj
2m DXCC #11, 6m DXCC #815


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[Elecraft] N2CQ QRP Contest Calendar: Feb 7 - Mar8, 2009

2009-02-05 Thread Ken Newman


~
N2CQ QRP CONTEST CALENDAR
February 2009
~
80 METER FOXHUNT (CW) *** QRP Contest ***
Each Tuesday to Mar 24 
9 PM to 10:29 PM Eastern Time USA
Info: http://www.qrpfoxhunt.org/
~
40 METER FOXHUNT (CW) *** QRP Contest ***
Each Thursday to March 26
9 PM to 10:29 PM Eastern Time USA
Info: http://www.qrpfoxhunt.org/
~
Vermont QSO Party (CW/Ph/Dig)
Feb 7, z to Feb 8, 2400z
Rules: http://www.w1bd.org/
~
10-10 Int. Winter Phone QSO Party ... QRP Category
Feb 7, 0001z to Feb 8, 2359z
Rules: http://www.ten-ten.org/Forms/QSOPartyRulesRevised.pdf
~
Black Sea Cup International (CW/SSB) ... QRP Category
Feb 7, 1200z to 2400z
Rules: http://bscc.ucoz.ru/index/0-21
~
Worldwide Peace Messenger Cities (CW/SSB)... 
Feb 7, 1200z to Feb 8, 1200z
Rules: http://www.s59dcd.si/english/
~
Minnesota QSO Party (All) ... QRP Category
Feb 7, 1400z to 2359z
Rules: http://www.w0aa.org/
~
FYBO Winter QRP Field Day (CW/SSB) ... QRP Contest!
Feb 7, 1400z to 2400z
Rules: http://www.azscqrpions.org
~
AGCW Straight Key QSO Party (CW 80M) ... QRP Category
Feb 7, 1600z to  1900z
Rules: http://www.agcw.org/en/?Contests:Straight_Key_Party
~
British Columbia QSO Challenge (CW/PH/Dig) ... QRP Category
Feb 7, 1600z to Feb 8, 0359z
Rules: 
http://www.deltaamateurradio.com/BC%20QSO%20CONTEST.htm
~
New Mexico QSO Party (CW/PH/Dig) ... QRP Category
Feb 7, 1700z to Feb 8, 2350z
Rules: http://pages.swcp.com/~n5zgt/nmqsoparty/index.html
~
Delaware QSO Party (All) ... QRP Category
Feb 7, 1700z to Feb 8, 0500z
Feb 8, 1300z to Feb 9, 0100z
Rules: http://www.fsarc.org/DEQSO.html
~
MEXICO RTTY INTERNATIONAL CONTEST 
Feb 7, 1800z to Feb 8, 1759z
Rules: 
http://www.fmre.org.mx/concursos/2009/rtty/rules-rtty-2009-eng.pdf
~
SKCC Weekend Sprintathon (Straight Key CW) ... QRP Category
Feb 8, z to 2359z
Rules: http://www.skccgroup.com/sprint/wes/
~
NAQCC Straight Key/Bug Sprint (CW) *** QRP Contest ***
EST: Feb 10, 8:30 PM to 10:30 PM
UTC: Feb 11, 0130Z to 0330Z
Rules: http://www.arm-tek.net/~yoel/contests.html
~
North American Sprint (CW) ... QRP Category
Feb 8, z to 0400z
Rules: http://www.ncjweb.com/sprintrules.php 
~
Valentine Sprint (PODXS) (PSK-31) ... QRP Category
Feb 13, 2000 to Feb 16, 0200 LOCAL TIME
Rules: http://www.podxs070.com/
~
CQ WW RTTY WPX Contest ... Low Power Category
Feb 14, z to Feb 15, 2400z
Rules: http://www.cqwpxrtty.com/
~
Northern New York Section QSO Party (All)
Feb 14, z to Feb 15, 2359z
Rules: http://www.nnyara.org/
~
New Hampshire QSO Party (Ph/CW/Dig) ... QRP Category
Feb 14, 0001z to Feb 15, 0001z
Rules: http://www.w1fz.org/
~
Dutch PACC Contest (SSB/CW) ... QRP Category
Feb 14, 1200z to Feb 15, 1200z
Rules: http://pacc.veron.nl/
~
Louisiana QSO Party (Ph/CW/Dig) 
Feb 14, 1500z to Feb 15, 0300z 
Rules: http://www.qsl.net/kd5wdy/LAQSO_/laqso_.html
~
FISTS Winter Sprint (CW of course) ...QRP Category
Feb 14, 1700z to 2100z
Rules: http://www.fists.org/sprints.html
~
North American Sprint (SSB) ... QRP Category
Feb 15, z to 0400z
Rules: http://www.ncjweb.com/sprintrules.php
~
RUN FOR THE BACON (CW) *** QRP CONTEST ***
EST: Feb 15, 9 PM to 11 PM
UTC: Feb 16, 0200z 0400z
Rules: http://www.fpqrp.com/
~
ARRL International DX Contest (CW) ... QRP Category
Feb 21, z to Feb 22, 2400z
Rules: http://www.arrl.org/contests/rules/2009/intldx.html
~
REF (French) SSB Contest

Re: [Elecraft] OT: RF Clipper works with Elecraft

2009-02-05 Thread Ignacy


I used a number of external speech processors with mobile radios to increase
their punch. My design (2 x 9 Mhz filters), design by DF4ZS and and old one
by MFJ.  It was hard to get good boosts because an extrnal processor is
outside the ALC loop creating extra distortions and filters in many
processors (including DF4ZS) are poor. 715 uses 2 inexpensive ceramic
filters with a BW of 4 Khz.  K3 with its processor + an equalizer is a
killer DX machine. Just crank it up. 

Ignacy


Lyle Johnson wrote:
 
 ...I don't know the details of the K3 implementation,
 but the spec sheet refers to compression.
 
 In SSB modes, the K3 performs clipping at the 15 kHz IF, then bandpass 
 filters the result. It is further filtered by the 8.215 MHz IF quartz 
 filter.
 
 Thus, the SSB speech processor used in the K3 is IF envelope clipping. 
 It is preceded by a 8-band equalizer, so the radio can be adjusted for 
 from natural sounding, though punchy to just plain awful if you wish 
 it to be :-)
 
 73,
 
 Lyle KK7P
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Sent from the Elecraft mailing list archive at Nabble.com.

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Re: [Elecraft] Adding DSR (serial port line 6) interrupt in a Firmware Update?

2009-02-05 Thread Dick Dievendorff

If I read the KIO3-D Sub RS232 IO Board schematic correctly, pin 6 of J24
(the 9-pin RS-232 connector) is not connected to anything inside the K3. The
labeled (connected) pins are:

2 (RXD OUT)
3 (TXD IN)
4 (DTR IN)
5 (COMMON)
7 (RTS IN)

Dick, K6KR


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lance Collister
Sent: Thursday, February 05, 2009 7:26 PM
To: 'Elecraft Group'
Subject: [Elecraft] Adding DSR (serial port line 6) interrupt in a Firmware
Update?

I recall that there was an email recently that the K3's internal DVR was 
interrupted when the microphone or footswitch is activated to manually
transmit. 
I am very interested to learn if it might be possible at the same time to
also 
send an interrupt signal to the unused DSR line (serial pin #6).  This
interrupt 
is used by several computer programs (TRX-Manager, Multikeyer, Voice Keyer 
Express) at my station that automatically key the rig and send CW (via the
DTRor 
SSB messages.

Although these programs have primarily been used here for VHF meteor scatter

schedules, they are also very handy for working contests and other band
openings. 
  The K3 is of course well suited to work with any such external computer
programs 
due to its built-in audio interface.  However, when the operator switches to

manually keying the K3, it would be really great if an interrupt could be
sent to 
the computer programs via the serial port so that they stop their automatic
keying 
of the PTT line and also stop sending audio or CW signals to the K3.  Adding
a 
computer interrupt on the (currently unused) DSR line would accomplish this
and 
broaden the flexibility of the K3.  Thanks for your kind consideration!

VY 73, Lance

-- 
Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8)
P.O. Box 73
Frenchtown, MT  59834  USA
QTH: DN27UB
TEL: (406) 626-5728   URL: http://www.bigskyspaces.com/w7gj
2m DXCC #11, 6m DXCC #815


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[Elecraft] K3 AF Limiter needs higher threshold

2009-02-05 Thread Dave Hachadorian

There was a practice session for the Sprint contest on 
Thursday evening. In the Sprint, one is frequently called by 
several loud stations at once. I started out with fast agc, 
max slope and highest threshold, but the multiple loud 
callers were getting compressed together unless I 
continuously rode the rf gain control.

After a while I tried agc OFF, and that method was much 
better for distinguishing stations by their loudness. 
However, the AF limiter, even set at max 030, was frequently 
kicking in, which really distorts the audio, so I was back 
to riding the rf gain again.

I think the AF Limiter should have the ability to be set 
much higher than 030. Audio at level 030 is loud, but my 
ears can take more than that. Maybe the current hard 
limiting, with its gross distortion, could be made more 
gradual. Maybe the fast agc slope and threshold could be 
even steeper and higher. Otherwise, it's back to riding the 
RF gain. For some reason, my TS-850 didn't exhibit this 
problem. Maybe the 850's puny audio amp was self-limiting. 
Whatever the reason, the 850 was a lot better in this 
situation.

Dave Hachadorian, K6LL
Yuma, AZ

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Re: [Elecraft] remote on off of K3

You need a computer-controlled contact closure from the POWER_ON line 
(ACC jack) to ground to turn power ON. To turn power OFF cleanly, first 
send PS0; from the computer, wait a second, then turn power off by 
releasing the ground on POWER_ON.

This is described in the owner's manual under remote control.

73,
Wayne
N6KR

On Feb 5, 2009, at 6:19 PM, Don Greenbaum wrote:

 Just downloaded HRD and it controls the radio just fine, HOWEVER, 
 there is no CAT connection when the radio is off rendering HRD useless 
 from a remote location.

 Anyone know how to remotely turn on the K3 from the desktop?  (I use 
 logmein to see it).

 Don
 N1DG

 -
 N1DG--Licensed since 1962
 EX-WB2DND, A61AD (GUEST OP, QSL MGR), A52DG, /KH9, /BV, /VS6, /4X, /9V
 Pilot: VU7RG, 3Y0X, VK9ML, D68C, VK0IR, K8XP/KH9, 9M0C, ZK1XXP, ZL9CI
 Webmaster:  BS7H, 3Y0X, K5K, A52A, VK0IR, 9M0C, ZK1XXP, WB2DND/KH9, 
 BQ9P, ZL9CI
 QSL Manager:  A61AD, A61AO, A61X, A61AQ
 2006 inductee into the CQ Magazine DX Hall of Fame
 Member:  FOC, ARRL, DDXA, YCCC

 SKYPE:  aurumtel


 Please consider the environment before printing this email



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[Elecraft] Array Solutions DBS-2 Band Decoders

2009-02-05 Thread W0MU Mike Fatchett

From the Array Solutions manual:

1 Binary Band B (2) Pulled down, 3-5Vdc = 1 5volts MAX!
2 Binary Band A (1) Pulled down, 3-5Vdc = 1 5volts MAX!
3 Binary Band D (8) Pulled down, 3-5Vdc = 1 5volts MAX!
4 Binary Band C (4) Pulled down, 3-5Vdc = 1 5volts MAX!

Should I be able to hook this up directly to the band data on the accessory
jack of the K3?

I have a full set of Bandpass filters that I will want to use when the 2nd
K3 finds it's way into the shack.

Mike W0MU

A slip of the foot you may soon recover, but a slip of the tongue you may
never get over. Ben Franklin

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Re: [Elecraft] K3 ERR KEY

2009-02-05 Thread Brett Howard

Thats not how its worked for me...  I've powered things up and tapped
the key too early in the power up sequence and gotten that.  But I just
either wait or press the power button and cycle power and all is good.

On Thu, 2009-02-05 at 12:45 +, Brian Alsop wrote:
 While fooling around with a station configuration change,  I managed to 
 trigger this.
 
 It's a great idea. 
 
 However, once triggered, you can't turn off the K3 with its power switch. 
 You have to go back and turn off the power supply.
 Is this how it was intended to work?
 
 FW V2.81
 
 73 de Brian/K3KO
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Re: [Elecraft] K3 main/sub band independence -- need more firmware testers

2009-02-05 Thread Brett Howard

Can't you use the RX in path since you have the XVRTR interface?


On Wed, 2009-02-04 at 00:42 -0800, AD6XY wrote:
 Excellent. I bet it does not work with two transverters though - how could
 it? What I hope it will do is work with 6m and a transverter, for 50/70MHz
 crossband Es.
 
 I can test but as I do not have the ATU the results might not be very
 interesting because both receivers will have to share the same antenna.
 Which brings me on to a question if I did have the ATU. 
 
 If the two receivers are on different bands, but with only one antenna,
 presumably the sub still received through the ATU which may be a problem if
 the ATU is lossy on that band, so... can the ATU be bypassed on receive?
 
 Mike
 
 
 
 wayne burdick wrote:
  
  Hi all,
  
  The K3's main/sub band independence functionality is working quite 
  well. To get it finalized, I'd like to find a few more enthusiastic 
  testers to pound on it. The present code (rev 2.92) is at field-test 
  level, so this is not for the risk-averse.
  
  Please e-mail me directly if you're interested. I already have several 
  names on my list and will be contacting everyone tomorrow.
  
  73,
  Wayne
  N6KR
  
  ---
  
  http://www.elecraft.com
  
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Re: [Elecraft] K3 main/sub band independence -- need more firmware testers

2009-02-05 Thread Brett Howard

Yes it does...

I'm doing that right now!

~Brett (KC7OTG)

On Tue, 2009-02-03 at 21:59 -0700, Bob Cunnings wrote:
 Does this allow setting VFO A and VFO B to different bands for units
 without the sub-receiver?
 
 Bob NW8L
 
 On Tue, Feb 3, 2009 at 8:22 PM, wayne burdick n...@elecraft.com wrote:
  Hi all,
 
  The K3's main/sub band independence functionality is working quite
  well. To get it finalized, I'd like to find a few more enthusiastic
  testers to pound on it. The present code (rev 2.92) is at field-test
  level, so this is not for the risk-averse.
 
  Please e-mail me directly if you're interested. I already have several
  names on my list and will be contacting everyone tomorrow.
 
  73,
  Wayne
  N6KR
 
  ---
 
  http://www.elecraft.com
 
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[Elecraft] CW announce mode - firmware suggestion

2009-02-05 Thread Ralph Parker

...the Kenwood TS-570 had such a scheme implemented. Whenever one
would press the mode button one would get some CW feedback...

I would accept the firmware change if I could turn the 'feature' OFF.

VE7XF

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Re: [Elecraft] [K3] Elecraft roofing filters