Re: [Elecraft] 472KHz transverter for KX3

[Edward R Cole]

Graham,

Congratulations.  Looks like a nice design.  Are you using a TUH-1 
mixer?  Looks like the one that is used in DEMI transverters.  Also 
does not look difficult to put on 10.472 MHz using an external 10-MHz 
reference osc.  This would be ideal running the K3 in TEST mode.


I don't see LP filters on the output.  Might be good to have that so 
the 2nd Harmonic does not cause BC RFI on 944-KHz.


If you are going into production, probably not much sense for me to 
try, too.  The market belongs to he who is first.  I would add a 25w 
PA for running 1w ERP (typically with short vertical antennas).  I 
get a calculated 4.15w ERP on my inverted-L by running 100w RF output.


At my station I could drive my 100w transmitter with the SGA5586 
stage, or possibly directly with the mixer output.  I currently run 
on 495-510 KHz using the mw output of the K3 running in TEST.


73, Ed - KL7UW

--
Date: Mon, 25 Mar 2013 14:52:57 -0700 (PDT)
From: grumss 
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] 472KHz transverter for KX3
Message-ID: <1364248377705-7571853.p...@n2.nabble.com>
Content-Type: text/plain; charset=us-ascii

Prices are yet to be confirmed,
the kits should be around AUS$80 and


fully built boards AUS$200
It may seem a little expensive but I hand built them, tune and test which
takes a few hours.

(a limited number of fully built ones are available already at this price)

73, Graham VK3XDK

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[Elecraft] Has anyone used a "PC" microphone?

[Mike Greenway]

I know the thread was originally on the KX3 but wanted to send out info on a 
mic that will attach to any headset and works great on my K3.  I used for years 
the Heil HC4 DXer Dream element for chasing DX and wanted something just as 
good.  I had been using a Bose QC15 noise cancelling headset and really enjoy 
it but kept looking for a way to attach a mic.  Look at this site 
http://www.modmic.com/  It can be removed if needed and it has real punch once 
the equalizer is set up.  I really cuts through the pileups and got the cord 
from my old desk mic off the table.  I now keep the headset and mic plugged 
into the rear all the time.  I use an external speaker that has an off switch 
that puts the speaker line to 4 ohms when in the off position.  I selected in 
the K3 menu for the speaker and headset to be enabled all the time so I only 
have to turn the switch on the headset on to listen via the Bose on flip the 
switch on the speaker to use it, so no more plugging and unplugging of 
 headsets along with all the cabling off the table for mics and headset. 73 
Mike K4PI
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Re: [Elecraft] KX3 Aviation Band AM Receive?

[Matt VK2RQ]

No and no.

Check out the specs:
http://www.elecraft.com/KX3/kx3.htm

73, Matt VK2RQ

On 26/03/2013, at 2:18 PM, "James Meade"  wrote:

> Can the KX3 receive 108-136 MHz AM?  Can it transmit on 118-136?  I would 
> like to use it as a secondary aviation comm radio in my experimental airplane.
> TIA
> 73
> Jim
> 
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[Elecraft] KX3 Aviation Band AM Receive?

[James Meade]

Can the KX3 receive 108-136 MHz AM?  Can it transmit on 118-136?  I would  
like to use it as a secondary aviation comm radio in my experimental  
airplane.

TIA
73
Jim

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Re: [Elecraft] P3SVGA advice please

[W5RDW]

I started out with a 22 inch display for the external display, but quickly
decided it was too overwhelming for my use. I had a 19 inch Acer sitting
around unused and it fit the bill. Plenty big for my 69 year old eyes.



-
Roger W5RDW
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View this message in context: 
http://elecraft.365791.n2.nabble.com/P3SVGA-advice-please-tp7571863p7571872.html
Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] GPIO Band Info details

[Edward R Cole]

I'm looking at how to control band change external to the KX3 using 
the ACC2 GPIO.  I see reference to auxbus but no details.  The 
command set for ACC2 only sets it to ON/OFF with 3v output.  How do 
you use this to switch bands on 160m thru 6m for external 
equipment?  I looked thru the manual list on the Elecraft website and 
came up empty.


73, Ed - KL7UW

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Re: [Elecraft] P3SVGA advice please

[Tom H Childers]

I use an old 15 inch 1024 x 768 LCD about six inches further than an
arms length from my eyes which does a great job.

73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member


On Mon, 25 Mar 2013 19:57:06 -0400, Harlan 
wrote:

>Joe,
>I have a 20 inch and it is plenty good for these 62 year old eyes.  ;)
>
>Sent from my Verizon Wireless 4G LTE DROID
>
>Joseph Carter  wrote:
>
>>Am thinking of adding the P3SVGA to my P3 - will need to get a new monitor 
>>too.
>>In reading the eham reviews etc I am wondering about what size monitor folks 
>>might recommend.
[snip]

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[Elecraft] K3 - BAND1 output not changing

[Dave Hawes]

Debugging a problem on a friend's K3.

Using an external band decoder that has pull up resistors, the BAND1 line 
output from the AUX connector is always high, and of course that is messing 
up the decoding function on about half of the bands.  The radio is working 
normally otherwise.

Reviewing the schematics, it is seen that there is a series resistor in each of 
the BANDx lines.  If that resistor were to open up, the symptoms observed 
would result.  I am not close to the radio at the moment, but intend to check 
this out.

In the meantime, has anyone seen this kind of failure, and if so, has the 
series resistor been the culprit?

Thanks, and 73 - Dave N3RD
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Re: [Elecraft] P3SVGA advice please

[Dave Hachadorian]

If you're going to spend $280 for an SVGA board, you might as
well go big on the monitor!  I have two P3's driving two 23"
1080p LED monitors.  The shack looks like the bridge of  Starship
Enterprise with all those blue screens and strange images.

I found my 23" Dell units on Amazon (refurbs) for $85 each.  I
don't see those particular ones there right now, but there are
other refurbs around $100.

The wider the monitor, the wider you can set the Span, and still
be able to maintain useful resolution of signals.  Increased
vertical resolution helps to see a longer time history too.

Dave Hachadorian, K6LL
Yuma, Arizona




-Original Message- 
From: Joseph Carter

Sent: Monday, March 25, 2013 4:53 PM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] P3SVGA advice please

Am thinking of adding the P3SVGA to my P3 - will need to get a
new monitor too.
In reading the eham reviews etc I am wondering about what size
monitor folks might recommend.
FYI I am 63 years old and eyes still pretty good other than the
"small print conspiracy".
Desk space not really an issue.
Working distance typical desk-top.
Of course typically the "bigger is better" was my first thought
but upon reflection perhaps that
could be overwhelming.
I appreciate the groups wisdom!
Love my K3, and KX3!
Joe
w9jc
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Re: [Elecraft] P3SVGA advice please

[Gary Bartlett]

Probably depends upon what you intend to use it for, but for CW S&P
contesting, my ACER AL1716 (17") is much larger than necessary to be
effective.  That's as viewed with eyes that, according to my mother, turned
69 about 4 hours ago.

73,
Gary VE1RGB

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Joseph Carter
Sent: March-25-13 8:54 PM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] P3SVGA advice please

Am thinking of adding the P3SVGA to my P3 - will need to get a new monitor
too.
In reading the eham reviews etc I am wondering about what size monitor folks
might recommend.
FYI I am 63 years old and eyes still pretty good other than the "small print
conspiracy".
Desk space not really an issue.
Working distance typical desk-top.
Of course typically the "bigger is better" was my first thought but upon
reflection perhaps that could be overwhelming.
I appreciate the groups wisdom!
Love my K3, and KX3!
Joe
w9jc
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Re: [Elecraft] [Elecraft_K3] A Different View--K3 Reduced-bandwidth RTTY Analysis

[Brian Alsop]

Monty,

Perhaps I didn't explain my thinking it too well.

Apparently the normal K3 FSK implementation has both frequency shift and 
amplitude shifts.  The time domain plots show an amplitude change from 
mark to space.  The frequency domain plots show the frequency shift 
which is FSK keying.  Both modulate the "carrier" and generate sidebands 
which widen the signal.


The time domain pix show a power level change between mark and space. 
In the case of the standard K3 those transitions are sharp.  In the case 
of the reduced bandwidth FSK, there transition is almost a straight 
line. The slower transition has to generate lower level sidebands.


For an analogy:
Take the case of a pure CW wave, it is a very narrow bandwidth signal. 
Key off and on at 40 wpm and the sidebands arise.  Use Elecraft's raised 
cosine to smooth the zero to full power transition and the bandwidth is 
narrower and sidebands close by are much reduced.


Given the above, I stand by my conclusion that if the mark and space 
powers are equalized, the sidebands close in could be reduced.  How much 
is the question.  One qualification is not knowing what the improvement 
provided is.  (One could in theory imagine the a brick wall filter 
around the primary signal.  Then it wouldn't matter what caused the 
sidebands. )


73 de Brian/K3KO

On 3/25/2013 22:39, MontyS wrote:

No transition sounds like a square corner to me, generating all kinds of
square wave interference.
Monty K2DLJ


-Original Message- From: Brian Alsop
Sent: Monday, March 25, 2013 5:56 PM
Cc: ElecraftReflector
Subject: Re: [Elecraft] [Elecraft_K3] A Different View--K3
Reduced-bandwidth RTTY Analysis

Interesting. At at least the transition between the mark and space
amplitudes are smoothed some.  I wonder how many db in spectrum purity
that buys. If it buys something, imagine what no transition would buy.

73 de Brian/K3KO



On 3/25/2013 21:11, Hank Garretson wrote:



On Mon, Mar 25, 2013 at 8:27 PM, Brian Alsop mailto:als...@nc.rr.com>> wrote:

I notice that in the narrower signal spectrun the two tone peaks
have the same amplitude.

Many of us have wondered why our watt meters diddled like the RTTY
tones.

Hopefully that is fixed too.


Not fixed. See the before and after photos.
https://picasaweb.google.com/StarrGarretson/2013_03_25_K3_FSK

Which brings up one of my crotchets.

One of the most useful and important station accessories is an
oscilloscope. Much more useful than one of those multi-hundred dollar
watt meters--who cares if it is 150 or 153 watts?

An oscilloscope centered before your eyes can instantly tell you a whole
bunch about your signal.

Is your keying too hard? Are you overmodulating? Are you
overcompressing? Are your RTTY mark and space different in amplitude? Is
your amplifier adjusted correctly? Do you have the right antenna for the
right band selected? Has something gone wrong with your antenna? Do you
have hum on your signal? Etcetera.

If more hams had a monitor scope, we wouldn't have so many rotten
signals on the air.

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light

No virus found in this message.
Checked by AVG - www.avg.com 
Version: 2012.0.2240 / Virus Database: 2641/5703 - Release Date: 03/25/13





-
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Checked by AVG - www.avg.com
Version: 2012.0.2240 / Virus Database: 2641/5703 - Release Date: 03/25/13

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No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.2240 / Virus Database: 2641/5703 - Release Date: 03/25/13






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No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.2240 / Virus Database: 2641/5703 - Release Date: 03/25/13

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[Elecraft] P3SVGA advice please

[Joseph Carter]

Am thinking of adding the P3SVGA to my P3 - will need to get a new monitor too.
In reading the eham reviews etc I am wondering about what size monitor folks 
might recommend.
FYI I am 63 years old and eyes still pretty good other than the "small print 
conspiracy".
Desk space not really an issue.
Working distance typical desk-top.
Of course typically the "bigger is better" was my first thought but upon 
reflection perhaps that 
could be overwhelming.
I appreciate the groups wisdom!
Love my K3, and KX3!
Joe
w9jc
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Re: [Elecraft] K3 utility

[David Christ]

In lion and mountain lion you can get to the library folder if while in finder 
you hold down the option/alt key while clicking on the GO menu item.  You will 
see the library folder listed.  Click on it and then click on the preferences 
folder icon within the library folder.

David K0LUM


On Mar 25, 2013, at 5:47 PM, David Fleming wrote:

> Hi Mike,
>> 
>> Try deleting the preferences file and see if that solves the problem. Use 
>> Finder to navigate to the /User/your_user_name/Library/Preferences folder. 
>> The library folder is hidden on Lion and Mountain Lion, so you may have 
>> trouble finding it. A quick way to get there is to click the "Go to folder" 
>> menu option under the "Go" menu in Finder. Then type in 
>> "/Users/your_user_name/Library/Preferences". Once you get there, locate the 
>> file named "K3UtilPrefs" and rename it to something like "K3UtilPrefs_BAK". 
>> Or you can delete it. Then try running the K3 Utility again. 
>> 
>> David, W4SMT 
> 
> 
> 
> From: Mike Reublin 
> To: Elecraft Reflector  
> Sent: Monday, March 25, 2013 6:36 PM
> Subject: [Elecraft] K3 utility
> 
> I tried to load the new MCU beta, but the utility doesn't run. Error message 
> is "An exception of class NilObjectException was not handled. The application 
> must shut down". 
> 
> Mac Version 1.12.9.22. It's never done that before. I downloaded another 
> copy, no joy. Re-booted, same error.
> 
> 73, Mike NF4L
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Re: [Elecraft] P3SVGA advice please

[Harlan]

Joe,
I have a 20 inch and it is plenty good for these 62 year old eyes.  ;)

Sent from my Verizon Wireless 4G LTE DROID

Joseph Carter  wrote:

>Am thinking of adding the P3SVGA to my P3 - will need to get a new monitor too.
>In reading the eham reviews etc I am wondering about what size monitor folks 
>might recommend.
>FYI I am 63 years old and eyes still pretty good other than the "small print 
>conspiracy".
>Desk space not really an issue.
>Working distance typical desk-top.
>Of course typically the "bigger is better" was my first thought but upon 
>reflection perhaps that 
>could be overwhelming.
>I appreciate the groups wisdom!
>Love my K3, and KX3!
>Joe
>w9jc
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Re: [Elecraft] [Elecraft_K3] A Different View--K3 Reduced-bandwidthRTTY Analysis

[Jim Brown]

On 3/25/2013 2:34 PM, Dave Hachadorian wrote:
Many of us have wondered why our watt meters diddled like the RTTY 
tones.



Hopefully that is fixed too.


That is not fixed. 


it is my understanding that with AFSK, at least, the cause is a bit of 
ripple in the 2.7 kHz filter. I have 2.8 kHz filters in the TX position 
of my K3s, and I see less of that than I did with 2.7 kHz filters. Wayne 
can address how that might relate to his implementation of FSK.


There's no good reason for using FSK as opposed to AFSK with a K3 or KX3 
-- several months ago, I did extensive testing with W6GJB of FSK and 
AFSK (using MMTTY) and AFSK was significantly narrower than FSK.  That 
was with standard firmware, not the new Beta. The 2Tone author says his 
AFSK is even cleaner. We haven't looked at that yet.


73, Jim K9YC
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Re: [Elecraft] K3 utility

[Mike Reublin]

Thanks David.

On restarting the utility, an "initializing" dialog appears, followed by the 
license screen. There it just hangs. I had to do a "Force quit". An empty prefs 
file was created. I did that twice.

Mike

On Mar 25, 2013, at 6:47 PM, David Fleming  wrote:

>> Hi Mike,
>> 
>> Try deleting the preferences file and see if that solves the problem. Use 
>> Finder to navigate to the /User/your_user_name/Library/Preferences folder. 
>> The library folder is hidden on Lion and Mountain Lion, so you may have 
>> trouble finding it. A quick way to get there is to click the "Go to folder" 
>> menu option under the "Go" menu in Finder. Then type in 
>> "/Users/your_user_name/Library/Preferences". Once you get there, locate the 
>> file named "K3UtilPrefs" and rename it to something like "K3UtilPrefs_BAK". 
>> Or you can delete it. Then try running the K3 Utility again. 
>> 
>> David, W4SMT
> 
> 
> From: Mike Reublin 
> To: Elecraft Reflector  
> Sent: Monday, March 25, 2013 6:36 PM
> Subject: [Elecraft] K3 utility
> 
> I tried to load the new MCU beta, but the utility doesn't run. Error message 
> is "An exception of class NilObjectException was not handled. The application 
> must shut down". 
> 
> Mac Version 1.12.9.22. It's never done that before. I downloaded another 
> copy, no joy. Re-booted, same error.
> 
> 73, Mike NF4L
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> 

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[Elecraft] K3 utility

[Mike Reublin]

I tried to load the new MCU beta, but the utility doesn't run. Error message is 
"An exception of class NilObjectException was not handled. The application must 
shut down". 

Mac Version 1.12.9.22. It's never done that before. I downloaded another copy, 
no joy. Re-booted, same error.

73, Mike NF4L
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Re: [Elecraft] K3 utility

[David Fleming]

Hi Mike,
>
>Try deleting the preferences file and see if that solves the problem. Use 
>Finder to navigate to the /User/your_user_name/Library/Preferences folder. The 
>library folder is hidden on Lion and Mountain Lion, so you may have trouble 
>finding it. A quick way to get there is to click the "Go to folder" menu 
>option under the "Go" menu in Finder. Then type in 
>"/Users/your_user_name/Library/Preferences". Once you get there, locate the 
>file named "K3UtilPrefs" and rename it to something like "K3UtilPrefs_BAK". Or 
>you can delete it. Then try running the K3 Utility again. 
>
>David, W4SMT 



 From: Mike Reublin 
To: Elecraft Reflector  
Sent: Monday, March 25, 2013 6:36 PM
Subject: [Elecraft] K3 utility
 
I tried to load the new MCU beta, but the utility doesn't run. Error message is 
"An exception of class NilObjectException was not handled. The application must 
shut down". 

Mac Version 1.12.9.22. It's never done that before. I downloaded another copy, 
no joy. Re-booted, same error.

73, Mike NF4L
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Re: [Elecraft] [Elecraft_K3] A Different View--K3 Reduced-bandwidthRTTY Analysis

[Joe Subich, W4TV]

What I see, on both K3's here, is a brief 7% power spike upward when
the FSK input is shorted, and a brief 7% power spike downward when
the FSK input is opened.


Expect to see more change on keying edges with shaped/filtered/band
limited FSK.  Even shaped AFSK from 2Tone/cocoamodem/fldigi show
significant AM effects when switching from tone to tone.  Running the
band limited AFSK through hard limiting (driving an amplifier into
compression) will widen the signal out (although not as much as driving
a mic preamp into clipping).

73,

   ... Joe, W4TV


On 3/25/2013 5:34 PM, Dave Hachadorian wrote:

I notice that in the narrower signal spectrun the two tone peaks have
the same amplitude.



Many of us have wondered why our watt meters diddled like the RTTY tones.



Hopefully that is fixed too.


That is not fixed.  I have two K3's, and have been running reduced
bandwidth firmware for a couple of months now.  An LED wattmeter still
shows significant flickering as RTTY is being sent, and screen current
on a tetrode amp shows a lot of variation on its analog meter.

What I see, on both K3's here, is a brief 7% power spike upward when the
FSK input is shorted,  and a brief 7% power spike downward when the FSK
input is opened.  Steady-state mark and space rf amplitudes are equal.
The transients occur only at the transitions.  This experiment was
repeated with DSP v 2.81 and is unchanged from earlier versions.  I
guess, if the signal is clean, it's nothing to worry about, but it sure
looks weird to see all that flickering going on.  I remember on my old
TS-850, I could check amplifier tuning while rtty was being sent, but
with the K3, I don't feel comfortable doing that.


Dave Hachadorian, K6LL
Yuma, Arizona












.
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Re: [Elecraft] A Different View--K3 Reduced-bandwidth RTTY Analysis - Question

[Hank Garretson]

On Mon, Mar 25, 2013 at 2:28 PM, Lee Buller  wrote:

How do you (the people who use FSK) key the radio through the RTTY program?
>  I
> am using AFSK and have good experiences, but I wonder how keying is done
> through
> the software.
>

Using a simple transistor keying circuit attached to K3 Accessory jack pin
1. Check your K3 manual and pages 5 and 7 at http://www.aa5au.com/rtty.html.

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] [KX3] Pictures needed for KX3 book

[Jim Lowman]

If it's done by the time that Visalia comes around, Fred, will it be for 
sale there?  I have your K3 book and will definitely want the KX3 book.


73 de Jim - AD6CW

On 3/25/2013 7:19 AM, Cady, Fred wrote:

Hi all,
The KE7X KX3 book is nearing completion. There are some white spaces that would 
be nice to fill with some pictures on the KX3 in action. If you have any neat 
photos you would like to contribute, please send them along (but please, no 8 
Mbyte photos). I'd especially like to see some mountain-top operating photos.

Anybody submitting a photo that can be used will receive a copy of the book.

When is it going to be out? I'd like to have it done by Visalia but I'm running 
out of time. :-(

Cheers and 73,
Fred KE7X

Fred Cady
fcady at ieee dot org



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Re: [Elecraft] A Different View--K3 Reduced-bandwidth RTTY Analysis

[Wayne Burdick]

On Mar 25, 2013, at 1:23 PM, AG0N-3055 wrote:

Andy, K0SM has a very nice look at the K3 reduced-bandwidth FSK  
keying.

(Now available to all as Beta DSP rev. 2.8.)

http://www.frontiernet.net/~aflowers/k3beta/


I'm not a K3 owner, but that is quite impressive.  Very well done.
I'm

wondering if there is any work being done along those lines for CW?



The K3 and KX3 use an optimal, raised-cosine (sigmoidal or S-shaped)  
keying envelope. As a result, both rigs have CW keying that's crisp  
but occupies very little bandwidth. The consensus is that it's just  
about perfect already.


73,
Wayne
N6KR


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Re: [Elecraft] [Elecraft_K3] A Different View--K3 Reduced-bandwidth RTTY Analysis

[Brian Alsop]

Interesting. At at least the transition between the mark and space 
amplitudes are smoothed some.  I wonder how many db in spectrum purity 
that buys. If it buys something, imagine what no transition would buy.


73 de Brian/K3KO



On 3/25/2013 21:11, Hank Garretson wrote:



On Mon, Mar 25, 2013 at 8:27 PM, Brian Alsop mailto:als...@nc.rr.com>> wrote:

I notice that in the narrower signal spectrun the two tone peaks
have the same amplitude.

Many of us have wondered why our watt meters diddled like the RTTY
tones.

Hopefully that is fixed too.


Not fixed. See the before and after photos.
https://picasaweb.google.com/StarrGarretson/2013_03_25_K3_FSK

Which brings up one of my crotchets.

One of the most useful and important station accessories is an
oscilloscope. Much more useful than one of those multi-hundred dollar
watt meters--who cares if it is 150 or 153 watts?

An oscilloscope centered before your eyes can instantly tell you a whole
bunch about your signal.

Is your keying too hard? Are you overmodulating? Are you
overcompressing? Are your RTTY mark and space different in amplitude? Is
your amplifier adjusted correctly? Do you have the right antenna for the
right band selected? Has something gone wrong with your antenna? Do you
have hum on your signal? Etcetera.

If more hams had a monitor scope, we wouldn't have so many rotten
signals on the air.

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light

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Re: [Elecraft] 472KHz transverter for KX3

[grumss]

Prices are yet to be confirmed,
the kits should be around AUS$80 and 


fully built boards AUS$200
It may seem a little expensive but I hand built them, tune and test which
takes a few hours.

(a limited number of fully built ones are available already at this price)

73, Graham VK3XDK



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Re: [Elecraft] 472KHz transverter for KX3

[grumss]

Seems there may be a problem for some with the first link.

try going straight to my website http://www.vk3xdk.net46.net/

or doing a google search on my call sign.

73, Graham VK3XDK



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Re: [Elecraft] [Elecraft_K3] A Different View--K3 Reduced-bandwidthRTTY Analysis

[Dave Hachadorian]

I notice that in the narrower signal spectrun the two tone peaks 
have the same amplitude.


Many of us have wondered why our watt meters diddled like the 
RTTY tones.



Hopefully that is fixed too.


That is not fixed.  I have two K3's, and have been running 
reduced bandwidth firmware for a couple of months now.  An LED 
wattmeter still shows significant flickering as RTTY is being 
sent, and screen current on a tetrode amp shows a lot of 
variation on its analog meter.


What I see, on both K3's here, is a brief 7% power spike upward 
when the FSK input is shorted,  and a brief 7% power spike 
downward when the FSK input is opened.  Steady-state mark and 
space rf amplitudes are equal. The transients occur only at the 
transitions.  This experiment was repeated with DSP v 2.81 and is 
unchanged from earlier versions.  I guess, if the signal is 
clean, it's nothing to worry about, but it sure looks weird to 
see all that flickering going on.  I remember on my old TS-850, I 
could check amplifier tuning while rtty was being sent, but with 
the K3, I don't feel comfortable doing that.



Dave Hachadorian, K6LL
Yuma, Arizona












. 


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Re: [Elecraft] A Different View--K3 Reduced-bandwidth RTTY Analysis - Question

[Lee Buller]

How do you (the people who use FSK) key the radio through the RTTY program?  I 
am using AFSK and have good experiences, but I wonder how keying is done 
through 
the software.

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?

Common Sense is the image of the Creator expressing revealed truth in my mind. 
-  John W. (Kansas)

Never interfere with anything that isn't bothering you.







From: Hank Garretson 
To: Elecraft Reflector ; elecraft...@yahoogroups.com; 
RTTY Reflector 
Cc: Ben Grokett 
Sent: Mon, March 25, 2013 3:00:26 PM
Subject: [Elecraft] A Different View--K3 Reduced-bandwidth RTTY Analysis

Andy, K0SM has a very nice look at the K3 reduced-bandwidth FSK keying.
(Now available to all as Beta DSP rev. 2.8.)

http://www.frontiernet.net/~aflowers/k3beta/

It is also interesting to look at before and after FSK signals in the time
domain.

https://picasaweb.google.com/StarrGarretson/2013_03_25_K3_FSK

K3 FSK has always had a small amplitude difference between mark and space.
The transition has always been abrupt, Photo 1. With the new beta software,
the transition is much more gentle, Photo 2. Bravo!

Diddle Exuberantly,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] 472KHz transverter for KX3

[grumss]

Gday all,
Ive designed and built a transverter board for the band, It is working very
well and is turning out to be popular.

The K3 is a superb radio for driving it and is what i'm using myself.

IF is typically 28Mhz but can easily be changed.

There has been some delays due to component sourcing and changes but it is
very close to being available.
Kit form or fully built.

see my website
http://www.vk3xdk.net46.net/1_31_600M-472Khz-479Khz-Transverter.html

or view posts on VKlogger 
http://www.vklogger.com/forum/viewtopic.php?f=41&t=11127&start=75



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Re: [Elecraft] [Elecraft_K3] A Different View--K3 Reduced-bandwidth RTTY Analysis

[Gary Gregory]

Now for an upgrade release of the P3 Tx monitoring. Long awaited.

Gary

On 26 March 2013 07:11, Garretson  wrote:

> On Mon, Mar 25, 2013 at 8:27 PM, Brian Alsop  wrote:
>
> I notice that in the narrower signal spectrun the two tone peaks have the
> > same amplitude.
> >
> > Many of us have wondered why our watt meters diddled like the RTTY tones.
> >
> > Hopefully that is fixed too.
> >
>
> Not fixed. See the before and after photos.
> https://picasaweb.google.com/StarrGarretson/2013_03_25_K3_FSK
>
> Which brings up one of my crotchets.
>
> One of the most useful and important station accessories is an
> oscilloscope. Much more useful than one of those multi-hundred dollar watt
> meters--who cares if it is 150 or 153 watts?
>
> An oscilloscope centered before your eyes can instantly tell you a whole
> bunch about your signal.
>
> Is your keying too hard? Are you overmodulating? Are you overcompressing?
> Are your RTTY mark and space different in amplitude? Is your amplifier
> adjusted correctly? Do you have the right antenna for the right band
> selected? Has something gone wrong with your antenna? Do you have hum on
> your signal? Etcetera.
>
> If more hams had a monitor scope, we wouldn't have so many rotten signals
> on the air.
>
> 73,
>
> Hank, W6SX
>
> Mammoth Lakes, California
>
> Elevation 8083 feet in John Muir's Range of Light
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-- 
*Gary - VK1ZZ
Skype: Gary.VK1ZZ
Motorhome Portable
The Shack*
*Elecraft K3
P3 Panadapter
KPA500FT
KAT500FT**
KX3-K
*
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Re: [Elecraft] [Elecraft_K3] A Different View--K3 Reduced-bandwidth RTTY Analysis

[Hank Garretson]

On Mon, Mar 25, 2013 at 8:27 PM, Brian Alsop  wrote:

I notice that in the narrower signal spectrun the two tone peaks have the
> same amplitude.
>
> Many of us have wondered why our watt meters diddled like the RTTY tones.
>
> Hopefully that is fixed too.
>

Not fixed. See the before and after photos.
https://picasaweb.google.com/StarrGarretson/2013_03_25_K3_FSK

Which brings up one of my crotchets.

One of the most useful and important station accessories is an
oscilloscope. Much more useful than one of those multi-hundred dollar watt
meters--who cares if it is 150 or 153 watts?

An oscilloscope centered before your eyes can instantly tell you a whole
bunch about your signal.

Is your keying too hard? Are you overmodulating? Are you overcompressing?
Are your RTTY mark and space different in amplitude? Is your amplifier
adjusted correctly? Do you have the right antenna for the right band
selected? Has something gone wrong with your antenna? Do you have hum on
your signal? Etcetera.

If more hams had a monitor scope, we wouldn't have so many rotten signals
on the air.

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] [Elecraft_K3] A Different View--K3 Reduced-bandwidth RTTY Analysis

[Brian Alsop]

I notice that in the narrower signal spectrun the two tone peaks have 
the same amplitude.


Many of us have wondered why our watt meters diddled like the RTTY tones.

Hopefully that is fixed too.

73 de Brian/K3KO

On 3/25/2013 19:59, Hank Garretson wrote:





Andy, K0SM has a very nice look at the K3 reduced-bandwidth FSK keying.
(Now available to all as Beta DSP rev. 2.8.)

http://www.frontiernet.net/~aflowers/k3beta/

It is also interesting to look at before and after FSK signals in the
time domain.

https://picasaweb.google.com/StarrGarretson/2013_03_25_K3_FSK

K3 FSK has always had a small amplitude difference between mark and
space. The transition has always been abrupt, Photo 1. With the new beta
software, the transition is much more gentle, Photo 2. Bravo!

Diddle Exuberantly,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light


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Re: [Elecraft] A Different View--K3 Reduced-bandwidth RTTY Analysis

[Walter Underwood]

The K3 and KX3 already do minimum bandwidth shaping on CW.

wunder
K6WRU

On Mar 25, 2013, at 1:23 PM, AG0N-3055 wrote:

> On Mon, 25 Mar 2013 12:59:39 -0700, Hank Garretson wrote:
> 
>> Andy, K0SM has a very nice look at the K3 reduced-bandwidth FSK keying.
>> (Now available to all as Beta DSP rev. 2.8.)
>> 
>> http://www.frontiernet.net/~aflowers/k3beta/
> 
> I'm not a K3 owner, but that is quite impressive.  Very well done.   I'm
> wondering if there is any work being done along those lines for CW?
> 
> Gary
> -- 
> http://ag0n.net
> 3055: http://ag0n.net/irlp/3055
> NodeOp Help Page: http://ag0n.net/irlp




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Re: [Elecraft] A Different View--K3 Reduced-bandwidth RTTY Analysis

[AG0N-3055]

On Mon, 25 Mar 2013 12:59:39 -0700, Hank Garretson wrote:

> Andy, K0SM has a very nice look at the K3 reduced-bandwidth FSK keying.
> (Now available to all as Beta DSP rev. 2.8.)
> 
> http://www.frontiernet.net/~aflowers/k3beta/

I'm not a K3 owner, but that is quite impressive.  Very well done.   I'm
wondering if there is any work being done along those lines for CW?

Gary
-- 
http://ag0n.net
3055: http://ag0n.net/irlp/3055
NodeOp Help Page: http://ag0n.net/irlp
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Re: [Elecraft] A Different View--K3 Reduced-bandwidth RTTY Analysis

[Ed Muns]

As far as I know, this enhanced DSP filtering is only on the K3 FSK
transmitted signal.  There is no impact on other modes, digital or
otherwise, only FSK-D.

Ed W0YK

 

Milt N5IA wrote:
> Since I am NOT a RTTY operator I am asking if this DSP 
> software revision is applicable to other modes.
> 
> I would presume it is, but obviously not with the same type 
> of cleanup required with the RTTY artefacts.
> 
> Please expand the conversation to include CW and SSB.

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Re: [Elecraft] A Different View--K3 Reduced-bandwidth RTTY Analysis

[Milt -- N5IA]

Since I am NOT a RTTY operator I am asking if this DSP software revision is 
applicable to other modes.


I would presume it is, but obviously not with the same type of cleanup 
required with the RTTY artefacts.


Please expand the conversation to include CW and SSB.

Thank you in advance.

de Milt, N5IA


-Original Message- 
From: Hank Garretson

Sent: Monday, March 25, 2013 12:59 PM
To: Elecraft Reflector ; elecraft...@yahoogroups.com ; RTTY Reflector
Cc: Ben Grokett
Subject: [Elecraft] A Different View--K3 Reduced-bandwidth RTTY Analysis

Andy, K0SM has a very nice look at the K3 reduced-bandwidth FSK keying.
(Now available to all as Beta DSP rev. 2.8.)

http://www.frontiernet.net/~aflowers/k3beta/

It is also interesting to look at before and after FSK signals in the time
domain.

https://picasaweb.google.com/StarrGarretson/2013_03_25_K3_FSK

K3 FSK has always had a small amplitude difference between mark and space.
The transition has always been abrupt, Photo 1. With the new beta software,
the transition is much more gentle, Photo 2. Bravo!

Diddle Exuberantly,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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[Elecraft] A Different View--K3 Reduced-bandwidth RTTY Analysis

[Hank Garretson]

Andy, K0SM has a very nice look at the K3 reduced-bandwidth FSK keying.
(Now available to all as Beta DSP rev. 2.8.)

http://www.frontiernet.net/~aflowers/k3beta/

It is also interesting to look at before and after FSK signals in the time
domain.

https://picasaweb.google.com/StarrGarretson/2013_03_25_K3_FSK

K3 FSK has always had a small amplitude difference between mark and space.
The transition has always been abrupt, Photo 1. With the new beta software,
the transition is much more gentle, Photo 2. Bravo!

Diddle Exuberantly,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] K2 Part 2 and alignment

[Christophe F8ACF-56]

hello all, hello Don,

thank you for the explanation, it is that I did not think this factor

Thank you, I learn a lot with very interesting list, and big thanks to Don for 
us to share his knowledge.

 K2 # 7369 

73 , Christophe F8ACF-56



 De : Don Wilhelm 
À : Christophe F8ACF-56  
Cc : "elecraft@mailman.qth.net"  
Envoyé le : Lundi 25 mars 2013 14h22
Objet : Re: [Elecraft] K2 Part 2 and alignment
 
Christophe,

The voltage that you see in the display will always be lower than the 
voltage at the input power jack.
There is a reverse polarity protection diode in the K2 and there is a 
slight voltage drop across the fuse.
That will make the voltage inside the K2 0.4 to 0.5 volts lower than the 
voltage of your power source.

73,
Don W3FPR

On 3/25/2013 8:28 AM, Christophe F8ACF-56 wrote:
> hello all,
>
> Part 2 and alignment validated everything is OK, BFO = 5.9 kHz, VCO of 2.17 V 
> to 6.0 V, 13 KHz PLL so it's OK
>
> Song minor or I do not see how pressing the button "display" was the voltage 
> and amperage, the amperage is only Ok, there is a gap between the multimeter 
> reading and that of K2, I not know the origin or the setting of this part
>
> for those that want to place or is the video test::
>
> http://dl.free.fr/tS9ocrCFC
>
> thank you for your help
>
>
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[Elecraft] Wanted K2

[Steve]

Anybody got a K2 they want to part with?

Email me with details direct please.
n...@arrl.net
Steve N4LQ
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[Elecraft] K3 Beta Firmware Release: Reduced FSK-D keying bandwidth, etc.

[wayne burdick]

K3 beta-test firmware revision 4.66 (with DSP rev. 2.81) is now  
available. See release notes below.


Please send any questions to k3supp...@elecraft.com. For beta firmware  
download instructions, see:


 http://www.elecraft.com/K3/k3_software.htm

73,
Wayne
N6KR

* * *

K3 MCU 4.66 / DSP 2.81, 3-22-2013

* FSK-D KEYING BANDWIDTH GREATLY REDUCED: This change reduces the  
amplitude of the FSK-D keying sidebands by 25-30 dB at a 500-Hz  
offset, giving the K3 one of the cleanest FSK signals available.


* K3/0 (REMOTE-RIG) IMPROVEMENTS: (1) Supply voltage can go down to  
7.6 V; (2) VFO lock works correctly; (3) TX LED no longer gets out of  
sync.


* IMPROVED HANDLING OF SERIAL I/O (RS232) ERROR CONDITIONS.

* SUPPORT ADDED FOR ALTERNATIVE LCD DRIVER IC. This has no effect on  
radio operation.


* RIT AND XIT NO LONGER TURNED OFF UNINTENTIONALLY: In previous  
releases, changing bands via direct frequency entry (FREQ ENT) or  
remote-control band change commands (FA, FB, and BN) would turn off  
RIT and XIT. This was true even if CONFIG:SPLT SV was set to YES.


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Re: [Elecraft] [KX3] Has anyone used a "PC" microphone

[Rich Lentz]

Thanks for all of the help. I have my answer.

 

Rich

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Re: [Elecraft] KX3 Amp

[Igor Sokolov]

I do not have equipment to accurately measure IMD of my combo of KX3 and HLA 
300 Plus. Having said that I drive HLA 300 with 5 w from KX3. It gives me 
200 + watt on all the bands. Listening to the radiated signal using TS590 
and different antenna reveals that the occupied bandwidth is within the same 
boundaries which I  have determined by transmitting 100 W from my K3. 
Therefore I assumed that IMD of the above mentioned combo is no worth then 
30db.


73, Igor UA9CDC

- Original Message - 
From: "Dyarnes" 

To: 
Sent: Monday, March 25, 2013 10:40 PM
Subject: [Elecraft] KX3 Amp



Hi All,

To echo Jim Brown's cautionary statement about IMD with the RM Italy HLA 
series amps, there is some good info on Tom Rausch's (W8JI) website 
concerning the HLA-150.  That amp will run up to 150 watts or so, but 
according to some testing that Rausch did, if you go much over 100 watts, 
the IMD gets pretty marginal!  Presumably the HLA-300 have some similar 
optimal point below it's maximum capability.  Apparently this is not at 
all uncommon, particularly with 12 V. amps.  Even the K3 loses some of 
it's IMD quality if you go over 100 watts, which you can do somewhat.


Dave W7AQK
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Re: [Elecraft] [KX3] Has anyone used a "PC" microphone?

[Stephen M. Shearer]

I am using a PC headset with good results (good reports) with my KX3.
I am using a Cyber Acoustics AC-200 3.5MM Plug Stereo Speech Headset Boom
Mic from Amazon.com ($8.64). (16 left)
"This AC-200B Stereo Headset with noise canceling microphone is Voice
Recognition Certified."

Bias OFF
PTT off (use VOX)
CMP on (set 8/9) for 10 db
XMIT EQ:
1 (50) -10
2 (100) -6
3 (200) - 1
4 (400) +3
5 (800) +6
6 (1600) +6
7 (2400) +3
8 (3200) - 6
Mike gain is set to 5 

74, Steve WB3LGC

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ignacy
Sent: 25 March, 2013 12:49 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] [KX3] Has anyone used a "PC" microphone?

HB9PJT and I made lots of tests with KX3 audio. 

We tried a few headsets. The equalizer does not work as well as in K3 and
signals with mediocre microphones were only slightly improved. HB9PJT got
better results with Heil HC5.

It seems that both the equalizer and processor in KX3 are work in progress.
Wayne knows and Lyle will work on both when he has time. 

Ignacy, NO9E





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571814p7571835.html
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Re: [Elecraft] [KX3] Has anyone used a "PC" microphone?

[Ignacy]

HB9PJT and I made lots of tests with KX3 audio. 

We tried a few headsets. The equalizer does not work as well as in K3 and
signals with mediocre microphones were only slightly improved. HB9PJT got 
better results with Heil HC5.

It seems that both the equalizer and processor in KX3 are work in progress.
Wayne knows and Lyle will work on both when he has time. 

Ignacy, NO9E





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[Elecraft] KX3 Amp

[Dyarnes]

Hi All,

To echo Jim Brown's cautionary statement about IMD with the RM Italy HLA 
series amps, there is some good info on Tom Rausch's (W8JI) website 
concerning the HLA-150.  That amp will run up to 150 watts or so, but 
according to some testing that Rausch did, if you go much over 100 watts, 
the IMD gets pretty marginal!  Presumably the HLA-300 have some similar 
optimal point below it's maximum capability.  Apparently this is not at all 
uncommon, particularly with 12 V. amps.  Even the K3 loses some of it's IMD 
quality if you go over 100 watts, which you can do somewhat.


Dave W7AQK 


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Re: [Elecraft] Remote KPA500 Via Moxa - On/Off Switch via S/W not stable

[mcduffie]

On Fri, 22 Mar 2013 15:54:21 -0700, Dick Dievendorff wrote:

> I've just done a little tweaking to the KPA Utility's timing.  After the
> power off command is issued it takes a little while before the KPA500 is
> responsive to any other serial commands.  The KPA Utility doesn't wait quite
> long enough.

Dick,

Any word on a change to allow the TS-590 band information to be properly read by
the KPA when using memories?  As previously reported, it works fine in VFO mode,
but does not when operating in memory mode.

Gary McDuffie
AG0N
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Re: [Elecraft] Writing K3 Control Add-in for Windows4P3 and need some advice

[tomb18]

Ok...
Looks like almost everything is going to be there...need to buy a 30"monitor
lol



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Re: [Elecraft] Writing K3 Control Add-in for Windows4P3 and need some advice

[Bill W]

Hi,
You may want to consider adding the "Delay" adjustment.
I use mine in CW depending on whether I operate  QSK or not.
Of course it also is used to adjust VOX delay I believe. 
Also the "Mon" (monitor) function might be of value.
Good Luck
Bill - W0BBI



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[Elecraft] [KX3] Pictures needed for KX3 book

[Cady, Fred]

Hi all,
The KE7X KX3 book is nearing completion. There are some white spaces that would 
be nice to fill with some pictures on the KX3 in action. If you have any neat 
photos you would like to contribute, please send them along (but please, no 8 
Mbyte photos). I'd especially like to see some mountain-top operating photos.

Anybody submitting a photo that can be used will receive a copy of the book.

When is it going to be out? I'd like to have it done by Visalia but I'm running 
out of time. :-(

Cheers and 73,
Fred KE7X

Fred Cady
fcady at ieee dot org

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[Elecraft] New software

[Mike Reublin]

For you RUMlog users who want to turn your antenna by computer control, here's 
LRotor. It works either stand alone or with the latest version of RUMlog 5.1.3.

Rotor controllers tested so far are those using the DCU-1(HyGain, Idiom Press) 
commands, and the Prosistel D. Included but un-tested are AlfaSpid, M2 
RC-2800PX and Yaesu.

http://nf4l.com/rotor

Please direct any comments, questions, etc to me, not to the list.

73, Mike NF4L
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Re: [Elecraft] K3-100

[Don Wilhelm]

I believe Dick did not state explicitly, the 2.7 kHz filter must be 
enabled for transmit on DATA modes too.  See the Filter Installation 
section in Appendix A of the manual - especially the information below 
the filter images on page 78.


Any filter can be enabled for receive, but some do not make much sense, 
particularly for the 500 Hz filter.


73,
Don W3FPR
On 3/25/2013 8:56 AM, Dick Dievendorff wrote:

Brian:

Slot 1: 13 kHz, not 1300 kHz.  You should enable this for receive for all
modes. This is your Tx FM filter.
Slot 2: 6 kHz, not 600 kHz. You should enable this for receive for all modes
except perhaps FM. This should be your Tx AM filter.
Slot 3. 2.7 kHz. I would enable this for receive for all modes including AM,
but not FM. This should be your Tx SSB and Tx CW filter.
Slot 5:  500 Hz: I would enable this for CW, USB, LSB, and Data, but not AM
or FM.

73 de Dick, K6KR


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brian North
Sent: Monday, March 25, 2013 5:03 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3-100

Hello, my first question on the site!

Can anyone tell me what the set-up is for configuring the filters please.

my present set-up is:

FM= 1300khz. Slot 1

AM-TX= 600khz. Slot 2

CW/SSB= 2.70khz. Slot 3

Data/Am= 0.50khz Slot 5

Are these correct, and / or what is the correct configuration please?

Many thanks in anticipation.



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Re: [Elecraft] K3-100

[Joe Subich, W4TV]

> Slot 5:  500 Hz: I would enable this for CW, USB, LSB, and Data,
> but not AM or FM.

Not useful for USB/LSB ... I only enable 500 Hz for CW and DATA

73,

   ... Joe, W4TV


On 3/25/2013 8:56 AM, Dick Dievendorff wrote:

Brian:

Slot 1: 13 kHz, not 1300 kHz.  You should enable this for receive for all
modes. This is your Tx FM filter.
Slot 2: 6 kHz, not 600 kHz. You should enable this for receive for all modes
except perhaps FM. This should be your Tx AM filter.
Slot 3. 2.7 kHz. I would enable this for receive for all modes including AM,
but not FM. This should be your Tx SSB and Tx CW filter.
Slot 5:  500 Hz: I would enable this for CW, USB, LSB, and Data, but not AM
or FM.

73 de Dick, K6KR


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brian North
Sent: Monday, March 25, 2013 5:03 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3-100

Hello, my first question on the site!

Can anyone tell me what the set-up is for configuring the filters please.

my present set-up is:

FM= 1300khz. Slot 1

AM-TX= 600khz. Slot 2

CW/SSB= 2.70khz. Slot 3

Data/Am= 0.50khz Slot 5

Are these correct, and / or what is the correct configuration please?

Many thanks in anticipation.

Brian
2E0BWQ

Sent from my iPad
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Re: [Elecraft] K2 Part 2 and alignment

[Don Wilhelm]

Christophe,

The voltage that you see in the display will always be lower than the 
voltage at the input power jack.
There is a reverse polarity protection diode in the K2 and there is a 
slight voltage drop across the fuse.
That will make the voltage inside the K2 0.4 to 0.5 volts lower than the 
voltage of your power source.


73,
Don W3FPR

On 3/25/2013 8:28 AM, Christophe F8ACF-56 wrote:

hello all,

Part 2 and alignment validated everything is OK, BFO = 5.9 kHz, VCO of 2.17 V 
to 6.0 V, 13 KHz PLL so it's OK

Song minor or I do not see how pressing the button "display" was the voltage 
and amperage, the amperage is only Ok, there is a gap between the multimeter reading and 
that of K2, I not know the origin or the setting of this part

for those that want to place or is the video test::

http://dl.free.fr/tS9ocrCFC

thank you for your help




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Re: [Elecraft] K3-100

[Dick Dievendorff]

Brian:

Slot 1: 13 kHz, not 1300 kHz.  You should enable this for receive for all
modes. This is your Tx FM filter.
Slot 2: 6 kHz, not 600 kHz. You should enable this for receive for all modes
except perhaps FM. This should be your Tx AM filter.
Slot 3. 2.7 kHz. I would enable this for receive for all modes including AM,
but not FM. This should be your Tx SSB and Tx CW filter.
Slot 5:  500 Hz: I would enable this for CW, USB, LSB, and Data, but not AM
or FM.

73 de Dick, K6KR


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brian North
Sent: Monday, March 25, 2013 5:03 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3-100

Hello, my first question on the site!

Can anyone tell me what the set-up is for configuring the filters please.

my present set-up is:

FM= 1300khz. Slot 1

AM-TX= 600khz. Slot 2

CW/SSB= 2.70khz. Slot 3

Data/Am= 0.50khz Slot 5

Are these correct, and / or what is the correct configuration please?

Many thanks in anticipation.

Brian
2E0BWQ

Sent from my iPad
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Re: [Elecraft] K3-100

[Dick Dievendorff]

Hello, Brian.

Install the Elecraft K3 Utility, it's available at
http://www.elecraft.com/K3/k3_software.htm#k3util

Start the K3 Utility.

Navigate to the "Configuration" tab. Click "Configure Crystal Filters".
Click "Help" at the lower right corner. Follow the instructions in Help.  

You might also want to review the section of the K3 Owner's Manual available
at http://www.elecraft.com/K2_Manual_Download_Page.htm#K3, see page 46.

73 de Dick, K6KR


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brian North
Sent: Monday, March 25, 2013 5:03 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3-100

Hello, my first question on the site!

Can anyone tell me what the set-up is for configuring the filters please.

my present set-up is:

FM= 1300khz. Slot 1

AM-TX= 600khz. Slot 2

CW/SSB= 2.70khz. Slot 3

Data/Am= 0.50khz Slot 5

Are these correct, and / or what is the correct configuration please?

Many thanks in anticipation.

Brian
2E0BWQ

Sent from my iPad
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[Elecraft] K2 Part 2 and alignment

[Christophe F8ACF-56]

hello all,

Part 2 and alignment validated everything is OK, BFO = 5.9 kHz, VCO of 2.17 V 
to 6.0 V, 13 KHz PLL so it's OK

Song minor or I do not see how pressing the button "display" was the voltage 
and amperage, the amperage is only Ok, there is a gap between the multimeter 
reading and that of K2, I not know the origin or the setting of this part

for those that want to place or is the video test:: 

http://dl.free.fr/tS9ocrCFC

thank you for your help

K2#7369

 
73 , Christophe F8ACF-56
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Re: [Elecraft] K3-100

[hawley, charles j jr]

You mean 13 KHz and 6 KHz, anyway, looks good. That's how mine are.

Sent from my iPad
Chuck, KE9UW 
(Jack for BMW motorcycles)

On Mar 25, 2013, at 7:07 AM, "Brian North"  wrote:

> Hello, my first question on the site!
> 
> Can anyone tell me what the set-up is for configuring the filters please.
> 
> my present set-up is:
> 
> FM= 1300khz. Slot 1
> 
> AM-TX= 600khz. Slot 2
> 
> CW/SSB= 2.70khz. Slot 3
> 
> Data/Am= 0.50khz Slot 5
> 
> Are these correct, and / or what is the correct configuration please?
> 
> Many thanks in anticipation.
> 
> Brian
> 2E0BWQ
> 
> Sent from my iPad
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[Elecraft] K3-100

[Brian North]

Hello, my first question on the site!

Can anyone tell me what the set-up is for configuring the filters please.

my present set-up is:

FM= 1300khz. Slot 1

AM-TX= 600khz. Slot 2

CW/SSB= 2.70khz. Slot 3

Data/Am= 0.50khz Slot 5

Are these correct, and / or what is the correct configuration please?

Many thanks in anticipation.

Brian
2E0BWQ

Sent from my iPad
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Re: [Elecraft] [KX3] Has anyone used a "PC" microphone?

[Jim Sheldon]

When I bought "Dragon, Naturally Speaking" I got a fairly decent stereo headset 
with a flexible boom microphone on it for use with their program.  I upgraded 
the program and they sent me a second headset/mic combination.  The same 
headset/mic you can get from a number of places for use with a PC or laptop.  
After I got my KX3, I decided to try it.  Works very well and have had 
spontaneous reports of "Excellent Audio" using the same setup used for the MH3 
hand mic.  I left the TX EQ at factory settings.

Jim - W0EB

> On Sun, 2013-03-24 at 21:42 -0700, Mark Goldberg wrote:
>> I've used a Plantronics PC headset with good results. You just
>> have to set up the mic gain and EQ and I have gotten good reports.
>>
>
> I use a small flexible boom microphone (two for $4, shipped!) from
> Ebay, and it works great. Only used it once to test it.
>
> Gil.
>
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