Re: [Elecraft] K2/10 for sale in UK or EU

[Stephen Prior]

Now sold, thanks.


On 22/06/2009 21:31, "Stephen  Prior"  wrote:

> 
> I'm reposting this, hope no-one minds!  I'll sell to the UK and European
> Union only so I know that limits things somewhat!
> 
> Anyway.
> 
> I really can't justify keeping my K2 any longer now that I have the K3 (and
> a KX-1). So reluctantly I want to sell it. It is the 10W version with:
> 
> KAT2 automatic atu
> KNB2 noise blanker
> KSB2 ssb option 
> K60V 60m and transverter interface option
> FDIMP finger dimple
> KIO2 serial interface
> KBT2 internal battery kit (with brand new battery)
> Icom IC-HM12 microphone (electret).
> 
> I have added two phono connectors at the rear giving access to tx audio and
> fixed level receive for psk31 etc.
> 
> The serial number is 4930. I built most of the add-on boards but the main
> board was built by another UK amateur whose callsign escapes me. (I did not
> buy it directly from him). It has been utterly reliable in operation and is
> (in my opinion!) well calibrated.
> 
> I have agonised over this for ages, but I really cannot justify keeping it
> as it is getting no use. It is in excellent condition in all respects,
> cosmetically there is hardly a mark on it.
> 
> I'm looking at offers around £500.  To buy this from the USA in kit form
> would cost about £1000.
> 
> I can accept Paypal!
> 
> Thanks and 73 
> 
> Stephen G4SJP 
> 
> 
> 
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> 



__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] Sub receiver crosstalk

[Brett Howard]

Just to be sure...

I've got a 50uV signal being injected into ANT1 of the KAT3 and a dummy
load connected to ANT2.  I hear the signal on the main RX at S9 and
heard the signal on the SubRX (listening to the dummy load) at about
S2.5 (the third light is flickering).  I'm not really able to affect
this level by moving internal TMP cables or external cables.  There is
no cable between the signal generator and the ANT1 connector.  Is this
common?

Ok so I just found a problem when digging around in the radio.  Looks
like the screw in the top of the KAT3 board wasn't replaced.  Putting
that screw back in makes the radio show the signal at S1.  

I should note that there seems to be a strange bug in the software for
me.  If I hold BSET to go back to the mainRX.  Then hold it again to go
back to the SubRX the signal still shows S9...  I have to switch to ANT1
and then back to ANT2 in order to get the correct S-meter reading.  Is
this something anyone else can reproduce?  I'm running 3.19...

~Brett

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K3 #3215 arrived today

[AC6JA]

Just received my factory-assembled K3 with KAT3 auto antenna tuner, KRX3  
sub receiver, KTCXO3 temp controlled oscillator, and 2 sets of 2.8 khz, 1.0 
khz,  and 400 hz 8-pole filters for both receivers along with the USB 
adapter.   Sure sounds nice!  I haven't even transmitted yet.  I really like 
the  
AFX audio effects, CW decode, and auto spot features.
More to come...
 
Mike  AC6JA
K3 #3215
K2 #028
**Check all of your email inboxes from anywhere on the web.  
Try the new Email Toolbar now! 
(http://toolbar.aol.com/mail/download.html?ncid=txtlnkusdown0027)
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] Fw: Re: K3 QSK?

[Don Rasmussen]

It won't be the first time I've posed a dumb question to the reflector, but I 
do try to answer more questions than I pose, and put enough info on the K3 Wiki 
to keep my RTFM account in the black. ;-)

http://www.zerobeat.net/mediawiki/index.php/K3_Wiki_at_ZeroBeat.NET


--- On Tue, 6/23/09, Don Wilhelm  wrote:

> From: Don Wilhelm 
> Subject: Re: [Elecraft] K3 QSK?
> To: "Don Rasmussen" 
> Cc: "elecraft@mailman.qth.net" 
> Date: Tuesday, June 23, 2009, 7:37 PM
> Don and all,
> 
> This is not a specific comment on your situation, I am just
> using it as one example.  IF everyone would read
> through the menu settings for the radio, I believe a lot of
> these type questions would be answered.  Yes, a bit of
> logical thought about the effects of each setting is in
> order too, but an understanding of the configuration
> settings available in any radio (the K3 included) can be had
> by just looking through the available menu settings - "it is
> in the manual" (plus a few of the K3 firmware release notes
> for the new functions).  For *all* radios with menu
> settings, an understanding of the menu items available will
> help you to set up the radio the way you want it.  It
> is true for the Yaesu 817, the K2 and the K3 and many
> others.  You do not know the radio until you know what
> is contained in the menus.
> 
> 73,
> Don W3FPR
> 
> 
> Don Rasmussen wrote:
> > Think I have it, had set TX DLY to 20, it is normally
> 8. Somehow I considered this would only apply to VOX mode.
> ???
> > 
> > Set it back to 8 and QSK is good again.
> > 
> > Thanks for the reports... 
> >   
> 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 QSK?

[Don Wilhelm]

Don and all,

This is not a specific comment on your situation, I am just using it as 
one example.  IF everyone would read through the menu settings for the 
radio, I believe a lot of these type questions would be answered.  Yes, 
a bit of logical thought about the effects of each setting is in order 
too, but an understanding of the configuration settings available in any 
radio (the K3 included) can be had by just looking through the available 
menu settings - "it is in the manual" (plus a few of the K3 firmware 
release notes for the new functions).  For *all* radios with menu 
settings, an understanding of the menu items available will help you to 
set up the radio the way you want it.  It is true for the Yaesu 817, the 
K2 and the K3 and many others.  You do not know the radio until you know 
what is contained in the menus.

73,
Don W3FPR


Don Rasmussen wrote:
> Think I have it, had set TX DLY to 20, it is normally 8. Somehow I considered 
> this would only apply to VOX mode. ???
>
> Set it back to 8 and QSK is good again.
>
> Thanks for the reports... 
>
>   
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] Field Day

[Steve Ward]

W7OTV will have at least two and possibly more K3s on the air.  WS7L and 
several others will be working CW, while I (AD7OG) will be running 
digital (at least PSK31 and RTTY) on mine.

At present the SSB stations plan to use lesser rigs :-)

Steve
AD7OG
K3/100 SN 1544

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 QSK

[Steve Ellington]

Thumping? If this K3 started that stuff, it would be out the door faster 
than a scared cat. Good QSK is hard to come by and it really surprises me to 
hear these comments. I mean come on now."A friend noticed thumping" and 
with "Certain settings of the front panel" Certain settings? Is that in the 
manual?

Steve Ellington
n...@carolina.rr.com
- Original Message - 
From: "Toby Pennington" 
To: 
Sent: Tuesday, June 23, 2009 9:04 PM
Subject: [Elecraft] K3 QSK


>A friend of mine and myself noticed thumping using QSK with certain 
>settings on the front panel.
>
> My friend referred this issue to Wayne at Elecraft,   he was able to 
> duplicate it,  and said it was being added to the "to do" list.
>
> Best way to eliminate this is to set the rig to semi BK IN,  and turn the 
> delay to a setting of 2.
> This should give you good QSK CW.
>
> Toby  W4CAK
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html 

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 QSK?

[Don Rasmussen]

Think I have it, had set TX DLY to 20, it is normally 8. Somehow I considered 
this would only apply to VOX mode. ???

Set it back to 8 and QSK is good again.

Thanks for the reports... 

--- On Tue, 6/23/09, Steve Ellington  wrote:

> From: Steve Ellington 
> Subject: Re: [Elecraft] K3 QSK?
> To: "Don Rasmussen" , elecraft@mailman.qth.net
> Date: Tuesday, June 23, 2009, 5:59 PM
> You certainly have something wrong.
> At 20 wpm in QSK mode, I can not only hear between dits but
> can almost understand what an AM station is saying! At 50
> wpm I can hear the distinct clicks as a carrier from a BC
> station pops through.
> Steve Ellington
> n...@carolina.rr.com
> - Original Message - From: "Don Rasmussen" 
> To: 
> Sent: Tuesday, June 23, 2009 8:09 PM
> Subject: [Elecraft] K3 QSK?
> 
> 
> > 
> > Sending a string of DITS using an external keyer, and
> in QSK mode, I can hear receiver noise between the dits
> until about 19 WPM.
> > 
> > At that point the receiver is muted, so 20wpm or
> greater on my radio as it sits, there is no QSK. :-(
> > 
> > Is there a firmware adjustment that will improve
> this?
> > 
> > TIA,
> > Don
> > 
> >
> __
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Elecraft@mailman.qth.net
> > 
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html 
> 
> 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] [K2] WTB K2 QRP

[pkhjr]

Want to buy K2 QRP, the more options the better.  Please reply email to
k...@yahoo.com 
73
Paul
-- 
View this message in context: 
http://n2.nabble.com/WTB-K2-QRP-tp3146098p3146098.html
Sent from the [K2] mailing list archive at Nabble.com.

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] Fw: Re: K3 QSK?

[Don Rasmussen]

Hmmm - using CMOS4 keyer into KEY phono plug at rear - 3.10 firmware. CW Mode, 
QSK on,  VOX off.


--- On Tue, 6/23/09, Steve Ellington  wrote:

> From: Steve Ellington 
> Subject: Re: [Elecraft] K3 QSK?
> To: "Don Rasmussen" , elecraft@mailman.qth.net
> Date: Tuesday, June 23, 2009, 5:59 PM
> You certainly have something wrong.
> At 20 wpm in QSK mode, I can not only hear between dits but
> can almost understand what an AM station is saying! At 50
> wpm I can hear the distinct clicks as a carrier from a BC
> station pops through.

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K3 QSK

[Toby Pennington]

A friend of mine and myself noticed thumping using QSK with certain settings on 
the front panel.   

My friend referred this issue to Wayne at Elecraft,   he was able to duplicate 
it,  and said it was being added to the "to do" list.  

Best way to eliminate this is to set the rig to semi BK IN,  and turn the delay 
to a setting of 2. 
This should give you good QSK CW. 

Toby  W4CAK
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 QSK?

[Steve Ellington]

You certainly have something wrong. At 20 wpm in QSK mode, I can not only 
hear between dits but can almost understand what an AM station is saying! At 
50 wpm I can hear the distinct clicks as a carrier from a BC station pops 
through.
Steve Ellington
n...@carolina.rr.com
- Original Message - 
From: "Don Rasmussen" 
To: 
Sent: Tuesday, June 23, 2009 8:09 PM
Subject: [Elecraft] K3 QSK?


>
> Sending a string of DITS using an external keyer, and in QSK mode, I can 
> hear receiver noise between the dits until about 19 WPM.
>
> At that point the receiver is muted, so 20wpm or greater on my radio as it 
> sits, there is no QSK. :-(
>
> Is there a firmware adjustment that will improve this?
>
> TIA,
> Don
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html 

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 QSK?

[David Gilbert]

I have no problem hearing 40m BC carriers between dits at 40 wpm using 
N1MM as an external keyer (via RS-232 cable), so you've got an excessive 
delay somewhere else in your settings.

73,
Dave   AB7E


Don Rasmussen wrote:
> Sending a string of DITS using an external keyer, and in QSK mode, I can hear 
> receiver noise between the dits until about 19 WPM. 
>
> At that point the receiver is muted, so 20wpm or greater on my radio as it 
> sits, there is no QSK. :-(
>
> Is there a firmware adjustment that will improve this?
>
> TIA,
> Don
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>   
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K3 QSK?

[Don Rasmussen]

Sending a string of DITS using an external keyer, and in QSK mode, I can hear 
receiver noise between the dits until about 19 WPM. 

At that point the receiver is muted, so 20wpm or greater on my radio as it 
sits, there is no QSK. :-(

Is there a firmware adjustment that will improve this?

TIA,
Don

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 Beta F/W Release 3.19 for FD Ops... In case you missed the announcement

[Tom Hammond]

Just like in "Karate Kid"... Lock ON / Lock OFF... it toggles.

Tom

At 14:41 06/23/2009, you wrote:
>How do you unlock it?  The release notes say to tap 1 in CONFIG:PWR_SET to
>lock, but I don't see a description of how to unlock it there.  I haven't
>tried this...
>
>Dick, K6KR
>
>
>-Original Message-
>From: elecraft-boun...@mailman.qth.net
>[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Tom Hammond
>Sent: Tuesday, June 23, 2009 12:33 PM
>To: elecraft@mailman.qth.net
>Subject: [Elecraft] K3 Beta F/W Release 3.19 for FD Ops... In case you
>missed the announcement
>
>Folks:
>
>If you're taking your K3 out to Field Day this year, AND especially
>if you're going to have unfamiliar (I call 'em 'fiddley-fingered')
>ops using the rig on SSB (especially), there is a feature recently
>released in BETA firmware release 3.19 which you might be interested in.
>
>Over the past years, one of the MAJOR(!) problems our Field Day SSB
>stations have had to contend with was uninitiated SSB ops messing
>with the MIC GAIN, COMPRESSION LEVEL, and POWER OUTPUT LEVEL...
>trying to achieve an indicated "100W" on the output meter... Of
>course, you and I know that virtually all built-in power meters in
>just about any rig ('cept the K3) indicate some form of AVERAGE POWER
>OUTPUT, especially on SSB.
>
>Given the ballistics of the needles in the power meter and the
>vagaries of the human voice, when you're actually putting out 100W of
>RF, you're lucky if you see an INDICATED 25W-30W on the
>meter!!!  Some newer rigs offer PEAK OUTPUT indications, but not
>many.  As a result it's (almost) human nature to want to try to TURN
>THE WICK up as far as possible, to get that last milliwatt of RF out
>the back of the rig... UNfortunately, we do this not realizing that,
>in almost all instances, we have managed to mangle our transmitted
>audio so badly that the op on the other end can't make heads or tails
>out of the exchange we're trying to convey.  Our Bad!!!
>
>Enter he K3's most recent feature addition:  MIC / CMP / PWR LOCK...!
>
>Now, you (the K3 owner) can preset the MIC GAIN, COMPRESSION, and
>OUTPUT POWER LEVEL to levels you know are suitable for  your K3 and
>your users, and you can LOCK those three settings so that no amount
>of button twiddling by (most) users will be able to crank them out of range.
>
>You can read the docs on the new release and then download firmware
>v. 3.19 from Elecraft now.
>
>Just a thought.
>
>73,
>
>Tom Hammond   N0SS
>
>__
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:Elecraft@mailman.qth.net
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] FM via K3

[Brett Howard]

I'm having a hard time finding where these changes are.  Were these changes
rolled into the current production?  

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lyle Johnson
Sent: Tuesday, June 23, 2009 12:17 PM
To: john petters
Cc: 'Elecraft'
Subject: Re: [Elecraft] FM via K3

> ...I find the K3 lacking on both FM and AM. The audio sounds thin.

The Tx EQ is applied in AM and FM modes, so you should be able to tailor 
it pretty nicely.

Some months ago (I don't know exactly when) the components in the Tx 
audio path, and Rx headphone path, were changed to improve low frequency 
response.

> The AM is lacking, in that with full mic gain and full compression I 
> only get about 85 percent modulation.

The most recent Beta release increases AM maximum modulation.

73,

Lyle KK7P

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 headphones

[Brett Howard]

So if you're doing C84 and C92 why not also C82 and C90?

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Alexander Ponomarenko
Sent: Tuesday, June 23, 2009 12:54 PM
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 headphones

These caps - near Front Panel Phone Out. C9=C13=100uF 10V
Also add 1uF: "+" to pin 10 U2; "-" to ground. Picture here:
C9 and C13: http://forum.cqham.ru/download.php?id=43285  (big photo)
new 1uF cap: http://forum.cqham.ru/download.php?id=43286  (big photo)

Yes, IF buffer amplifier also have to be modified. Using only
electrolytic caps C84 and C92 not is enough, they must be bypass
by ceramic caps.
Photo: http://forum.cqham.ru/download.php?id=43287  (big photo)
All these modifications are not simply. I think the best way to
settlements of the problems call to Elecraft Tech. Support and Repairs.

73! Alex UR5LAM

Brett Howard:
> Where are these caps?  I see them on page 28 of 52 on the schematics but
> where do they physically live in the unit.  I assume they are on the main
> DSP board.  Also as far as the "grounded 1uF cap" are you talking about
the
> lil decoupling nugget they had sitting there?  Guess it couldn't hurt...  
> 
> Your pictures say after AF and IF amplifier modifications.  What IF mods
did
> you make?
>  
> 
> -Original Message-
> From: elecraft-boun...@mailman.qth.net
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Alexander
Ponomarenko
> Sent: Tuesday, June 23, 2009 12:16 AM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] K3 headphones
> 
> I has tried replacing the 10uF caps with 100uF in AF-amp, also in
> data-sheet for LM4811MM we see grounded pin 10 have to add for 1uF cap. 
> The result is excellent with my ProSet.
> Sound clean and deep. Signals became more raised, proturberant, appeared
> "body of the sound", clearly differ the most small details in signals. 
> Such sensation, that earlier the signals got through blanket,
> but now here is they, straight before my eyes, and they proturberant and
> volumetric.
> As my ears as SpectroLab also "sees the difference". You can see my
> plots "before" and "after" same mods.
> 
> before mods:   http://forum.cqham.ru/download.php?id=43281
> after mods:  http://forum.cqham.ru/download.php?id=43282
> 
> before s9 level:  http://forum.cqham.ru/download.php?id=43279
> after s9 level:  http://forum.cqham.ru/download.php?id=43280
> 
> 73! Alex UR5LAM
> 
> Joe Subich, W4TV:
>>> K9AC has recommended replacing the 10 uF caps 
>>> with 220 uF caps which would reduce the corner frequency 
>>> for low impedance headsets to about 50 Hz but since my 
>>> primary headset is the Proset I have not tried it as yet. 
>>>
>>> 73, 
>>>
>>>... Joe, W4TV
>>> 
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> 
> 


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 headphones

[Alexander Ponomarenko]

Paul, don't touch C22 cap (Cb for pin3 "bypass")!
You can to add 1uF cap to VDD line (U2 pin10).

Alex UR5LAM


Paul Christensen пишет:

> The National LM4811MM spec sheet notes that the bypass cap (Cb) value as 
> described above is critical with respect to turn-on clicks and pops.
> 
>>From the data sheet:
> "Capacitor Cb is the most critical component to minimize turn on pops since 
> it determines how fast the LM4811 turns on."
> 
> It's already at 10 uF.  Before changing it, I would test for clicks/pops 
> both ways to ensure that artifacts are not present.
> 
> Paul, W9AC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] FM via K3

[Grant Youngman]

So does that mean that after some specific serial number there is  
better LF response in both transmit and receive than earlier radios?

Is this a change that can be worked into the mods list, or would it  
require replacement of the board(s)?

Grant/NQ5T


On Jun 23, 2009, at 2:16 PM, Lyle Johnson wrote:

>
> Some months ago (I don't know exactly when) the components in the Tx
> audio path, and Rx headphone path, were changed to improve low  
> frequency
> response.
>

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 headphones

[Paul Christensen]

>> I has tried replacing the 10uF caps with 100uF in AF-amp, also in
>> data-sheet for LM4811MM we see grounded pin 10 have to add for 1uF cap.
>> The result is excellent with my ProSet.

If anyone is going through the trouble of changing the 10uF caps at C9 and 
C13 on the front panel DSP Board, I suggest going to 330 uF to ensure that a 
broad range of headphones are covered, including old models with fairly Lo-Z 
drivers.

http://www.n1eu.com/K3/k3audiomod.htm

The National LM4811MM spec sheet notes that the bypass cap (Cb) value as 
described above is critical with respect to turn-on clicks and pops.

>From the data sheet:
"Capacitor Cb is the most critical component to minimize turn on pops since 
it determines how fast the LM4811 turns on."

It's already at 10 uF.  Before changing it, I would test for clicks/pops 
both ways to ensure that artifacts are not present.

Paul, W9AC 

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 and full-bk

[Peter, DL2FI]

I assume you are using small bandwith CW filters. You should turn off NR 
because it is useless at small bandwith and may be the source of "not 
smooth" qsk

72/3 de Peter, DL2FI


- Original Message - 
From: "Wolfgang Schwarz -DK9VZ-" 
To: 
Sent: Tuesday, June 23, 2009 8:02 PM
Subject: [Elecraft] K3 and full-bk


>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> 

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 headphones

[Alexander Ponomarenko]

These caps - near Front Panel Phone Out. C9=C13=100uF 10V
Also add 1uF: "+" to pin 10 U2; "-" to ground. Picture here:
C9 and C13: http://forum.cqham.ru/download.php?id=43285  (big photo)
new 1uF cap: http://forum.cqham.ru/download.php?id=43286  (big photo)

Yes, IF buffer amplifier also have to be modified. Using only
electrolytic caps C84 and C92 not is enough, they must be bypass
by ceramic caps.
Photo: http://forum.cqham.ru/download.php?id=43287  (big photo)
All these modifications are not simply. I think the best way to
settlements of the problems call to Elecraft Tech. Support and Repairs.

73! Alex UR5LAM

Brett Howard:
> Where are these caps?  I see them on page 28 of 52 on the schematics but
> where do they physically live in the unit.  I assume they are on the main
> DSP board.  Also as far as the "grounded 1uF cap" are you talking about the
> lil decoupling nugget they had sitting there?  Guess it couldn't hurt...  
> 
> Your pictures say after AF and IF amplifier modifications.  What IF mods did
> you make?
>  
> 
> -Original Message-
> From: elecraft-boun...@mailman.qth.net
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Alexander Ponomarenko
> Sent: Tuesday, June 23, 2009 12:16 AM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] K3 headphones
> 
> I has tried replacing the 10uF caps with 100uF in AF-amp, also in
> data-sheet for LM4811MM we see grounded pin 10 have to add for 1uF cap. 
> The result is excellent with my ProSet.
> Sound clean and deep. Signals became more raised, proturberant, appeared
> "body of the sound", clearly differ the most small details in signals. 
> Such sensation, that earlier the signals got through blanket,
> but now here is they, straight before my eyes, and they proturberant and
> volumetric.
> As my ears as SpectroLab also "sees the difference". You can see my
> plots "before" and "after" same mods.
> 
> before mods:   http://forum.cqham.ru/download.php?id=43281
> after mods:  http://forum.cqham.ru/download.php?id=43282
> 
> before s9 level:  http://forum.cqham.ru/download.php?id=43279
> after s9 level:  http://forum.cqham.ru/download.php?id=43280
> 
> 73! Alex UR5LAM
> 
> Joe Subich, W4TV:
>>> K9AC has recommended replacing the 10 uF caps 
>>> with 220 uF caps which would reduce the corner frequency 
>>> for low impedance headsets to about 50 Hz but since my 
>>> primary headset is the Proset I have not tried it as yet. 
>>>
>>> 73, 
>>>
>>>... Joe, W4TV
>>> 
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> 
> 


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 headphones

[Alexander Ponomarenko]

These caps - near Front Panel Phone Out. C9=C13=100uF 10V
Also add 1uF: "+" to pin 10 U2; "-" to ground. Picture here:
C9 and C13: http://forum.cqham.ru/files/thumbs/t_img_0011_824.jpg
new 1uF cap: http://forum.cqham.ru/files/thumbs/t_img_0010_282.jpg

Yes, IF buffer amplifier also have to be modified. Using only 
electrolytic caps C84 and C92 not is enough, they must be bypass
by ceramic caps.
Photo: http://forum.cqham.ru/files/thumbs/t_img_0009_928.jpg

All these modifications are not simply. I think the best way to 
settlements of the problems call to Elecraft Tech. Support and Repairs.

73! Alex UR5LAM

Brett Howard:
> Where are these caps?  I see them on page 28 of 52 on the schematics but
> where do they physically live in the unit.  I assume they are on the main
> DSP board.  Also as far as the "grounded 1uF cap" are you talking about the
> lil decoupling nugget they had sitting there?  Guess it couldn't hurt...  
> 
> Your pictures say after AF and IF amplifier modifications.  What IF mods did
> you make?
>  
> 
> -Original Message-
> From: elecraft-boun...@mailman.qth.net
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Alexander Ponomarenko
> Sent: Tuesday, June 23, 2009 12:16 AM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] K3 headphones
> 
> I has tried replacing the 10uF caps with 100uF in AF-amp, also in
> data-sheet for LM4811MM we see grounded pin 10 have to add for 1uF cap. 
> The result is excellent with my ProSet.
> Sound clean and deep. Signals became more raised, proturberant, appeared
> "body of the sound", clearly differ the most small details in signals. 
> Such sensation, that earlier the signals got through blanket,
> but now here is they, straight before my eyes, and they proturberant and
> volumetric.
> As my ears as SpectroLab also "sees the difference". You can see my
> plots "before" and "after" same mods.
> 
> before mods:   http://forum.cqham.ru/download.php?id=43281
> after mods:  http://forum.cqham.ru/download.php?id=43282
> 
> before s9 level:  http://forum.cqham.ru/download.php?id=43279
> after s9 level:  http://forum.cqham.ru/download.php?id=43280
> 
> 73! Alex UR5LAM
> 
> Joe Subich, W4TV:
>>> K9AC has recommended replacing the 10 uF caps 
>>> with 220 uF caps which would reduce the corner frequency 
>>> for low impedance headsets to about 50 Hz but since my 
>>> primary headset is the Proset I have not tried it as yet. 
>>>
>>> 73, 
>>>
>>>... Joe, W4TV
>>> 
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> 
> 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 and full-bk

[Steve Ellington]

Wolfgang: What do you mean by "not as smooth"? I use bull-bk for every cw 
qso and this is as smooth as it gets. What are you hearing that's not 
smooth?
Steve Ellington
n...@carolina.rr.com
- Original Message - 
From: "Wolfgang Schwarz -DK9VZ-" 
To: 
Sent: Tuesday, June 23, 2009 2:37 PM
Subject: [Elecraft] K3 and full-bk


> Hi K3 users,
>
> sorry for the first mail in HTML-format
> ASCII should fit better ;-))
>
>
> what is your recommendation for the use of full-bk?
> I find it being not as smooth as I remember it from my old K2
>
> What can I optimize?
> Does it help to switch off DSP functions like AFX, CWT or NR???
>
> -- 
> /*73 de*/
> /*Wolfgang DK9VZ*/
> w...@dk9vz.com 
>
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html 

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] FM via K3

[Bill Churchill]

That's great news Lyle. It looks better on my monitor scope. I will  
try it live on our AM gray hair net tonight. Thanks for the great work.
Bill AA1O
K3 287
K2 1740

On Jun 23, 2009, at 3:16 PM, Lyle Johnson wrote:

>> ...I find the K3 lacking on both FM and AM. The audio sounds thin.
>
> The Tx EQ is applied in AM and FM modes, so you should be able to  
> tailor
> it pretty nicely.
>
> Some months ago (I don't know exactly when) the components in the Tx
> audio path, and Rx headphone path, were changed to improve low  
> frequency
> response.
>
>> The AM is lacking, in that with full mic gain and full compression I
>> only get about 85 percent modulation.
>
> The most recent Beta release increases AM maximum modulation.
>
> 73,
>
> Lyle KK7P
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K3 Beta F/W Release 3.19 for FD Ops... In case you missed the announcement

[Tom Hammond]

Folks:

If you're taking your K3 out to Field Day this year, AND especially 
if you're going to have unfamiliar (I call 'em 'fiddley-fingered') 
ops using the rig on SSB (especially), there is a feature recently 
released in BETA firmware release 3.19 which you might be interested in.

Over the past years, one of the MAJOR(!) problems our Field Day SSB 
stations have had to contend with was uninitiated SSB ops messing 
with the MIC GAIN, COMPRESSION LEVEL, and POWER OUTPUT LEVEL... 
trying to achieve an indicated "100W" on the output meter... Of 
course, you and I know that virtually all built-in power meters in 
just about any rig ('cept the K3) indicate some form of AVERAGE POWER 
OUTPUT, especially on SSB.

Given the ballistics of the needles in the power meter and the 
vagaries of the human voice, when you're actually putting out 100W of 
RF, you're lucky if you see an INDICATED 25W-30W on the 
meter!!!  Some newer rigs offer PEAK OUTPUT indications, but not 
many.  As a result it's (almost) human nature to want to try to TURN 
THE WICK up as far as possible, to get that last milliwatt of RF out 
the back of the rig... UNfortunately, we do this not realizing that, 
in almost all instances, we have managed to mangle our transmitted 
audio so badly that the op on the other end can't make heads or tails 
out of the exchange we're trying to convey.  Our Bad!!!

Enter he K3's most recent feature addition:  MIC / CMP / PWR LOCK...!

Now, you (the K3 owner) can preset the MIC GAIN, COMPRESSION, and 
OUTPUT POWER LEVEL to levels you know are suitable for  your K3 and 
your users, and you can LOCK those three settings so that no amount 
of button twiddling by (most) users will be able to crank them out of range.

You can read the docs on the new release and then download firmware 
v. 3.19 from Elecraft now.

Just a thought.

73,

Tom Hammond   N0SS

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] FM via K3

[Lyle Johnson]

> ...I find the K3 lacking on both FM and AM. The audio sounds thin.

The Tx EQ is applied in AM and FM modes, so you should be able to tailor 
it pretty nicely.

Some months ago (I don't know exactly when) the components in the Tx 
audio path, and Rx headphone path, were changed to improve low frequency 
response.

> The AM is lacking, in that with full mic gain and full compression I 
> only get about 85 percent modulation.

The most recent Beta release increases AM maximum modulation.

73,

Lyle KK7P

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] FM via K3

[Bill Churchill]

Hi John, Jim,
I have noticed this problem with AM for some time, and hope that a  
solution would soon be coming soon.
73
Bill Churchill AA1O


On Jun 23, 2009, at 3:05 PM, john petters wrote:

> Hi Jim,
> Like you I find the K3 lacking on both FM and AM. The audio sounds  
> thin.
> The AM is lacking, in that with full mic gain and full compression I
> only get about 85 percent modulation.
>
> I would like to be able to control the audio as I can on SSB, which is
> excellent. Any chance of having another look at these modes in the  
> near
> future, Wayne, Eric and Lyle?
>
> I've reverted back to the IC706 mk 2 for AM and FM and use the K3 on
> receive at the moment.
> 73
> John Petters
> www.traditional-jazz.com
> Amateur Radio Station G3YPZ
>
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] FM via K3

[john petters]

Hi Jim,
Like you I find the K3 lacking on both FM and AM. The audio sounds thin.
The AM is lacking, in that with full mic gain and full compression I 
only get about 85 percent modulation.

I would like to be able to control the audio as I can on SSB, which is 
excellent. Any chance of having another look at these modes in the near 
future, Wayne, Eric and Lyle?

I've reverted back to the IC706 mk 2 for AM and FM and use the K3 on 
receive at the moment.
73
John Petters
www.traditional-jazz.com
Amateur Radio Station G3YPZ


JIM DAVIS wrote:
> Gentlemen,
>
> Is there any way to manipulate the transmitted audio when on FM using 
> the K3??? Nothing in the manual
> suggests that it's even remotely possible, while of course when on SSB 
> or AM it can be accomplished
> using either TX-EQ or ESSB!
>
> I ask this question because I work a club-rptr on 6mtrs w/FM and 
> eventhough I'm FQ into the machine
> they mentioned to me that my FM transmitted audio sounded a tad 
> (SHARP) lacking the fidelity of
> most mobile FM rigs available today!
>
> Regards,
>
> Jim/nn6ee
> S/N#2406 (K3)
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
-- 
John Petters
www.traditional-jazz.com
Amateur Radio Station G3YPZ
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K3 and full-bk

[Wolfgang Schwarz -DK9VZ-]

Hi K3 users,

sorry for the first mail in HTML-format
ASCII should fit better ;-))


what is your recommendation for the use of full-bk?
I find it being not as smooth as I remember it from my old K2

What can I optimize?
Does it help to switch off DSP functions like AFX, CWT or NR???

-- 
/*73 de*/
/*Wolfgang DK9VZ*/
w...@dk9vz.com 


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] Using NR tip

[Rick Braun]

I have been generally frustrated with the NR and stopped using it.  Then, 
playing around I turned off the effects, AFX and tried NR in vanilla mono.  It 
works much better.  My ignorant theory is that AFX and NR together is more 
processing than the audio can take and lots of content is lost.  Without AFX 
the NR is very effective.  You might like it.

Rick Braun
KE7VXP
K3 #2869
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K3 and full-bk

[Wolfgang Schwarz -DK9VZ-]

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 headphones

[Brett Howard]

Where are these caps?  I see them on page 28 of 52 on the schematics but
where do they physically live in the unit.  I assume they are on the main
DSP board.  Also as far as the "grounded 1uF cap" are you talking about the
lil decoupling nugget they had sitting there?  Guess it couldn't hurt...  

Your pictures say after AF and IF amplifier modifications.  What IF mods did
you make?
 

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Alexander Ponomarenko
Sent: Tuesday, June 23, 2009 12:16 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 headphones

I has tried replacing the 10uF caps with 100uF in AF-amp, also in
data-sheet for LM4811MM we see grounded pin 10 have to add for 1uF cap. 
The result is excellent with my ProSet.
Sound clean and deep. Signals became more raised, proturberant, appeared
"body of the sound", clearly differ the most small details in signals. 
Such sensation, that earlier the signals got through blanket,
but now here is they, straight before my eyes, and they proturberant and
volumetric.
As my ears as SpectroLab also "sees the difference". You can see my
plots "before" and "after" same mods.

before mods:   http://forum.cqham.ru/download.php?id=43281
after mods:  http://forum.cqham.ru/download.php?id=43282

before s9 level:  http://forum.cqham.ru/download.php?id=43279
after s9 level:  http://forum.cqham.ru/download.php?id=43280

73! Alex UR5LAM

Joe Subich, W4TV:
>> K9AC has recommended replacing the 10 uF caps 
>> with 220 uF caps which would reduce the corner frequency 
>> for low impedance headsets to about 50 Hz but since my 
>> primary headset is the Proset I have not tried it as yet. 
>>
>> 73, 
>>
>>... Joe, W4TV
>> 

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] FM via K3

[Milt, N5IA]

Jim,

It certainly could be the bandpass response of the microphone element 
itself.  What are you using for a microphone on the K-3?  Check that out.

Milt, N5IA

- Original Message - 
From: "JIM DAVIS" 
To: 
Sent: Monday, June 22, 2009 11:24 AM
Subject: [Elecraft] FM via K3


> Gentlemen,
>
> Is there any way to manipulate the transmitted audio when on FM using the 
> K3??? Nothing in the
> manual
> suggests that it's even remotely possible, while of course when on SSB or 
> AM it can be
> accomplished
> using either TX-EQ or ESSB!
>
> I ask this question because I work a club-rptr on 6mtrs w/FM and 
> eventhough I'm FQ into the
> machine
> they mentioned to me that my FM transmitted audio sounded a tad (SHARP) 
> lacking the fidelity of
> most mobile FM rigs available today!
>
> Regards,
>
> Jim/nn6ee
> S/N#2406 (K3)
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html






No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.339 / Virus Database: 270.12.88/2196 - Release Date: 06/22/09 
18:11:00

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K3: SubRX - muddy sound

[mzilmer]

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] FM via K3

[Lyle Johnson]

> Is there any way to manipulate the transmitted audio when on FM using the 
> K3???

Tx EQ is applied.

You can adjust the deviation as well.

73,

Lyle KK7P

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] FM via K3

[JIM DAVIS]

Gentlemen,

Is there any way to manipulate the transmitted audio when on FM using the K3??? 
Nothing in the 
manual
suggests that it's even remotely possible, while of course when on SSB or AM it 
can be 
accomplished
using either TX-EQ or ESSB!

I ask this question because I work a club-rptr on 6mtrs w/FM and eventhough I'm 
FQ into the 
machine
they mentioned to me that my FM transmitted audio sounded a tad (SHARP) lacking 
the fidelity of
most mobile FM rigs available today!

Regards,

Jim/nn6ee
S/N#2406 (K3)
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] k3 data A/ VOX

[d r]

i am running straight from the sound card to the line in/out on the k3
and using vox in the data mode "DATA A" and i am wondering if there is
a way to set default vox in this mode.. i always forget to switch off
when going back to ssb...

_
Lauren found her dream laptop. Find the PC that’s right for you.
http://www.microsoft.com/windows/choosepc/?ocid=ftp_val_wl_290
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 :: time set program

[Roy Morris]

I have found that I must quickly hit the enter button ("enter" written in 
green) to get the K3 Timekeeper screen to execute the update.  Immediately 
after it updates it leaves CONFIG: TIME and goes back to normal frequency 
display.  Roy Morris  W4WFB
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] Uniquely terrific

[Doug Turnbull]

Dick,
You are so right!   Elecraft has a great and unique products backed by
service which is unbeatable.   It is fun to feel part of the design team!
These radios are selling world wide despite all sales being direct.   I
actually feel this latter policy is an advantage as Radios in the Ireland
and the UK sell for nearly 80% more than in the US.   One can pay shipping,
the required taxes and still come out ahead of the game.   The modular
approach to the design also helps as one can build their radio up gradually
to the level of machine desired with a more moderate cash flow.   I think
these guys have got it right.   It is amazing to see the number of K3s that
are being used around the world despite having to order from California. 

 Maybe the smaller lighter radio also has its advantages when it comes
to shipping.   I suspect the kit also helps - it did in my own case as the
reduction in price of the kit is magnified by a drop in taxes.

 Not since the days of my Drake 2B have I felt the same loyalty to a
manufacturer of ham radio equipment and the Elecraft Company could show
Drake, "how to suck eggs".

 73 Doug EI2CN 

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dick Roth, KA1OZ
Sent: 23 June 2009 02:50
To: Elecraft Reflector
Subject: [Elecraft] Uniquely terrific

I'm afraid I cannot stop myself from making a comment.  It's a cheer. 
It's a remark for a remarkable situation.

Never before in my life within amateur radio or any other venture, have 
I seen such easy flow of information and feedback up and down (or is it 
in and out of) the interface between user and provider.

I've dealt with various tech support venues, some of which I rate quite 
highly, however the interplay between user/customer and provider is so 
natural as to be a true partnership.

I knew, when I re-awakened my interest in ham radio, that I wanted a 
radio I could grow with.  "Fait acomplie."  What I didn't know was that 
I would witness the process of its growth.

Glad to be and Elecrafter!

-- 
73,
Dick ka1oz
Middleborough, MA

Radio:  Elecraft K3/100(Kit) SN 859
Antenna:  Titan-DX
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 headphones

[Alexander Ponomarenko]

I has tried replacing the 10uF caps with 100uF in AF-amp, also in
data-sheet for LM4811MM we see grounded pin 10 have to add for 1uF cap. 
The result is excellent with my ProSet.
Sound clean and deep. Signals became more raised, proturberant, appeared
"body of the sound", clearly differ the most small details in signals. 
Such sensation, that earlier the signals got through blanket,
but now here is they, straight before my eyes, and they proturberant and
volumetric.
As my ears as SpectroLab also "sees the difference". You can see my
plots "before" and "after" same mods.

before mods:   http://forum.cqham.ru/download.php?id=43281
after mods:  http://forum.cqham.ru/download.php?id=43282

before s9 level:  http://forum.cqham.ru/download.php?id=43279
after s9 level:  http://forum.cqham.ru/download.php?id=43280

73! Alex UR5LAM

Joe Subich, W4TV:
>> K9AC has recommended replacing the 10 uF caps 
>> with 220 uF caps which would reduce the corner frequency 
>> for low impedance headsets to about 50 Hz but since my 
>> primary headset is the Proset I have not tried it as yet. 
>>
>> 73, 
>>
>>... Joe, W4TV
>> 

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html