Re: [Elecraft] Cw Skimmer

[Olli Tuppurainen]

I have FiFi SDR RX (  http://www.box73.com/product/3  ) connected to K3 IF
output with CW skimmer.
Very nice especially in pileups when trying to find where DX is listening.

Olli
OH6CT


> -Alkuperäinen viesti-
> Lähettäjä: Elecraft [mailto:elecraft-boun...@mailman.qth.net] Puolesta dw
> Lähetetty: 10. lokakuuta 2015 5:04
> Vastaanottaja: elecraft@mailman.qth.net
> Aihe: [Elecraft] Cw Skimmer
> 
> Is anyone using CW Skimmer with the K3?
> I'd like to get your thoughts.
> Tnx
> N1BBR
> --
>  bw...@fastmail.net
> 
> __
> 
> 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
Message
> delivered to oh...@sral.fi

__
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
Message delivered to arch...@mail-archive.com

Re: [Elecraft] K3 front panel encoders

[Olli Tuppurainen]

I replaced all four encoders  ( with help from my friend ) couple of days ago. 
It was quite a job as  the whole front panel has to be taken into pieces and 
DSP boards has to be taken off.
A good SMD rework station is recommended to clean through holes + experience in 
rework not to damage foils in PCB. New encoders are bit thicker so height 
difference has to be taken into account while assembling .

New encoders work smooth and  great.  

One notice,  be careful when taking off  the knobs as at least RIT encoder is 
not having nothing else than small soft metal clips holding it together ( 
Encoders metal nut has been left out as there is no room or thin enough nut was 
not available at the time mine was built )

BR

Olli
OH6CT


> -Alkuperäinen viesti-
> Lähettäjä: Elecraft [mailto:elecraft-boun...@mailman.qth.net] Puolesta
> SA2CIR
> Lähetetty: 30. joulukuuta 2014 23:19
> Vastaanottaja: elecraft@mailman.qth.net
> Aihe: Re: [Elecraft] K3 front panel encoders
> 
> Thanks for informative pictures and writing! Yesterday the SPEED/MIC
> control of my four months old K3 started acting like a scratchy potentiometer
> with intermittent contact. I got quick response from Elecraft’s support and
> am now preparing for a soldering operation similar to the one described.
> 
> What bothers me is that during the first 10 seconds or so after switching on
> the K3 the turning response of this encoder is perfectly ok, and then starts 
> to
> degrade. This behavior repeats every time I boot it up. How come? The
> pushbutton function works all the time. Soldering on the circuit board of
> course involves some risk. Could the present encoder perhaps be
> resurrected in some way, avoiding replacement?
> 
> Yes, I could send in the rig for warranty repairs but time and costs for
> shipping back and forth over the Atlantic are not insignificant.
> 
> 73, Rickard / SA2CIR
> 
> N5NA wrote
> > This thread prompted me to replace my CMP/PWR encoder which has
> been a
> > problem for several years.  When I ordered the encoder Elecraft
> > recommended replacing all four.  The encoders are only $3.34 each plus
> > $3.50 for shipping.
> >
> > I took a few pictures and wrote up what I did at
> > http://www.n5na.net/s9y/index.php?/archives/26-Replacing-Elecraft-K3-P
> > ush-Button-Encoders.html
> >  > Push-Button-Encoders.html>
> >
> > 73, Alan N5NA
> 
> 
> 
> 
> 
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/Re-K3-
> front-panel-encoders-tp7594936p7596591.html
> Sent from the Elecraft 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 Message
> delivered to oh...@sral.fi

__
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
Message delivered to arch...@mail-archive.com

[Elecraft] K3 front panel encoders

[Olli Tuppurainen]

Has anyone figured out how to clean or fix front panel encoders  (SHIFT/LO ,
HI /WIDTH) ?  These cheap ( ~ 0.5$  encoders ) in my K3 has always been
quite " jumpy " i.e.  value jumps up and down in random steps . Also the"
feeling " is not what you would expect form rig in this price range.

Similar issue was in FT-1000MP RIT encoder in 90s . Dust got inside the
optical encoder and turning RIT knob jumped frequency steps quite randomly.

Olli
OH6CT
 

__
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
Message delivered to arch...@mail-archive.com

Re: [Elecraft] Need a Fuse on the K3's Power Line?

[Olli Tuppurainen]

Seems that the final fuse is PCB foil :(

Small saving but severe damage ..

Olli
OH6CT

> -Alkuperäinen viesti-
> Lähettäjä: elecraft-boun...@mailman.qth.net [mailto:elecraft-
> boun...@mailman.qth.net] Puolesta Jarmo Blomster
> Lähetetty: 14. kesäkuuta 2013 19:16
> Vastaanottaja: elecraft@mailman.qth.net
> Aihe: Re: [Elecraft] Need a Fuse on the K3's Power Line?
> 
> You definetly need a fuse in 12V DC line.
> The reverse polarity protection does not work without the fuses.
> Here is a picture what might happen without the fuses if you mess the
> polarity and your power supply is stiff enough (like car battery).
> http://500px.com/photo/37567226
> 
> 73 de OH9VD/Jarmo
> __
> 
> 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 1st mixer mod

[Olli Tuppurainen]

I have one I7SWX mixer board available if anyone interested ?
Need to remove diplexer components from this unit . ( Early version.) 

Olli
OH6CT

> -Alkuperäinen viesti-
> Lähettäjä: elecraft-boun...@mailman.qth.net [mailto:elecraft-
> boun...@mailman.qth.net] Puolesta Giancarlo Moda
> Lähetetty: 1. maaliskuuta 2013 16:44
> Vastaanottaja: elecraft@mailman.qth.net
> Aihe: Re: [Elecraft] K3 1st mixer mod - Message for Jim Miller KG0KP
> 
> Hi Jim,
> 
> I cannot reply to your request as my mails got refused  as "spam"
> 
> You may download file from:
> 
> http://na6m.com/I7SWX_Modified_K3/
> 
> In the last page you have the requested info.
> 
> Best 73
> 
> Gian
> I7SWX
> 
> 
> 
> 
> >
> > Da: Jim Miller 
> >A: i7...@yahoo.com
> >Inviato: Venerdì 1 Marzo 2013 6:33
> >Oggetto: K3 1st mixer mod
> >
> >
> >Just wondering the $ price of the assembled PCB for the mod.
> >
> >Thanks, de Jim KG0KP
> >
> >
> __
> 
> 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] SDR_Sound_Cards

[Olli Tuppurainen]

I have pretty much given up  my LP-PAN +CW skimmer and NAP3 ever since I
upgraded my PC OS from XP to WIN7 ( 64bit ) with AMD X4 Phenom.

Tried now two different soundcards Infrasonic Quartet ( did work OK in XP )
and now recently bought EMU 0204 and same " nightmare " continues. Have
taken memory physically out from PC and limited use of memory in down to 3G,
did run things with " admin " rights and XP SP3  compatibilty  but nothing
seems to to work.

stick with XP 32bit if you want to use these.. :(

Olli
OH6CT 

> -Alkuperäinen viesti-
> Lähettäjä: elecraft-boun...@mailman.qth.net [mailto:elecraft-
> boun...@mailman.qth.net] Puolesta KQ8M
> Lähetetty: 3. syyskuuta 2012 21:10
> Vastaanottaja: billr...@comcast.net; elecraft@mailman.qth.net
> Aihe: Re: [Elecraft] SDR_Sound_Cards
> 
> Bill,
> 
> Thank you for relaying that for the rest of us. I guess I am one of those
Larry
> was referring to.
> 
> Larry,
> 
> Thank you for doing the extra work amidst my insistence the card was crap.
I
> will give your instructions a try and connect one up to my Win 7 machine
> again. I have never used the 0204 to listen from. It has only been used
for the
> input from the SDR/LPan. I will give it another shot nevertheless.
> 
> The best thing about Win 7 is having the ability to set the cards
parameters
> from within the sound applet through the Control Panel.
> Unfortunately there is no such thing in XP.
> 
> 73,
> Tim Herrick, KQ8M
> Charter Member North Coast Contesters
> k...@kq8m.com
> 
> AR-Cluster V6 kq8m.no-ip.org
> User Ports: 23, 7373  with local skimmer, 7374 without local skimmer
Server
> Ports: V6 3607, V4 Active 3605, V4 Passive 3606
> 
> 
> -Original Message-
> From: elecraft-boun...@mailman.qth.net [mailto:elecraft-
> boun...@mailman.qth.net] On Behalf Of billr...@comcast.net
> Sent: Monday, September 03, 2012 1:00 PM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] SDR_Sound_Cards
> 
> 
> Thanks to N8LP for the info he posted below. One happy discovery that
> might help eliminate some E-MU 0204 USB soundcard driver angst for Win 7
> 64 bit users: Windows 7 64 bit has an E-MU driver resident in the
operating
> system. This driver will *not* automatically install when the 0204 card is
first
> plugged in, but is easily installed from Device Manager via the Update
Driver
> utility. Win 7 will find the driver and install the 0204 card in about 5
seconds.
> The driver does not seem to have a graphical user interface, but works
fine
> on my system with NaP3 for sampling rates up to 192K. This driver is dated
> 11-12-2010 and is version 6.6.1.1 by Creative Labs. Follow Larry's
instructions
> for defaulting the sample rate to 192 K in Windows mixer setup and set the
> output to something other than the EMU 0204 in NaP3 setup and it should
> work well.
> 
> 
> Bill, WA4KBD
> --
> 
> FYI to all reading this thread: The 4GB RAM issue only appears to affect
> playback. The problem is that the audio will break up/lose sync after a
period
> of time. This only applies, of course, if you actually listen to the
output of the
> SDR.
> 
> If you select another sound card in the Output selection in NaP3, it will
be
> fine. You really don't need 192kHz for playback, since the widest filter
is
> 10kHz. So any sound card will do just fine, including a built in one. You
can still
> select the E-MU for Input and use 192kHz sampling for input.
> Therefore, you don't need to give up your extra RAM.
> 
> I have updated my system requirements page with this info...
> http://www.telepostinc.com/sysrequirements.html
> 
> 73,
> Larry N8LP
> 
> __
> 
> 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] Could the be the basis for the KPA-1500?

[Olli Tuppurainen]

I have not seen any cost indications yet

Olli
OH6CT

> -Alkuperäinen viesti-
> Lähettäjä: elecraft-boun...@mailman.qth.net [mailto:elecraft-
> boun...@mailman.qth.net] Puolesta Gary K9GS
> Lähetetty: 24. heinäkuuta 2011 17:48
> Vastaanottaja: elecraft@mailman.qth.net
> Aihe: Re: [Elecraft] Could the be the basis for the KPA-1500?
> 
> Hello Olli,
> 
> It's a start but really needs two devices.
> 
> Any idea what the cost is?
> 
> 
> 
> On 7/24/2011 8:07 AM, Olli Tuppurainen wrote:
> > Here is one alternative for HF + 6m
> >
> > http://www.nikkemedia.fi/juma-pa1000/
> >
> >
> > Olli
> > OH6CT
> >
> >> -Alkuperäinen viesti-
> >> Lähettäjä: elecraft-boun...@mailman.qth.net [mailto:elecraft-
> >> boun...@mailman.qth.net] Puolesta Jack Chomley
> >> Lähetetty: 24. heinäkuuta 2011 6:44
> >> Vastaanottaja: garyk...@wi.rr.com
> >> Kopio: elecraft@mailman.qth.net
> >> Aihe: Re: [Elecraft] Could the be the basis for the KPA-1500?
> >>
> >> We do NOT need any more big amplifiers, they are the reason the
> >> sunspot cycles have been worn out :-)
> >>
> >> 73,  Jack  VK4JRC
> >>
> >> On Sun, Jul 24, 2011 at 1:28 PM, Gary K9GS  wrote:
> >>
> >>> There has been an ongoing discussion on the AMPS reflector regarding
> >>> the Freescale LDMOS devices currently on the market.  A pair of
> >>> these in an HF amp with a 48V SMPS would be an excellent
start.(hint,
> >>> hint...KPA-1500).I wish I was retired and had some time on my
hands
> > :)
> >>> Check this out:
> >>>
> >>> http://www.w6pql.com/1_kw_2m_ldmos_amplifier.htm
> >>>
> >>> Also see:
> >>>
> >>> Some YouTube videos...
> >>> http://www.youtube.com/watch?v=02v58cnb41o&feature=relmfu
> >>> http://www.youtube.com/watch?v=-EACUpIhpac
> >>>
> >>> F1JRD also has an article in Dubus
> >>> http://www.qsl.net/f1jrd/MRFE6VP61K25H.html
> >>> http://www.w6pql.com/1_kw_2m_ldmos_amplifier.htm
> >>>
> >>>
> >>> --
> >>>
> >>>
> >>> 73,
> >>>
> >>> Gary K9GS
> >>>
> >>> Check out K9NS on the web:  http://www.k9ns.com Greater Milwaukee
> DX
> >>> Association: http://www.gmdxa.org Society of Midwest Contesters:
> >>> http://www.w9smc.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
> >
> 
> --
> 
> 
> 73,
> 
> Gary K9GS
> 
> Check out K9NS on the web:  http://www.k9ns.com Greater Milwaukee DX
> Association: http://www.gmdxa.org Society of Midwest Contesters:
> http://www.w9smc.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] Could the be the basis for the KPA-1500?

[Olli Tuppurainen]

Here is one alternative for HF + 6m

http://www.nikkemedia.fi/juma-pa1000/


Olli
OH6CT

> -Alkuperäinen viesti-
> Lähettäjä: elecraft-boun...@mailman.qth.net [mailto:elecraft-
> boun...@mailman.qth.net] Puolesta Jack Chomley
> Lähetetty: 24. heinäkuuta 2011 6:44
> Vastaanottaja: garyk...@wi.rr.com
> Kopio: elecraft@mailman.qth.net
> Aihe: Re: [Elecraft] Could the be the basis for the KPA-1500?
> 
> We do NOT need any more big amplifiers, they are the reason the sunspot
> cycles have been worn out :-)
> 
> 73,  Jack  VK4JRC
> 
> On Sun, Jul 24, 2011 at 1:28 PM, Gary K9GS  wrote:
> 
> > There has been an ongoing discussion on the AMPS reflector regarding
> > the Freescale LDMOS devices currently on the market.  A pair of these
> > in an HF amp with a 48V SMPS would be an excellent start.(hint,
> > hint...KPA-1500).I wish I was retired and had some time on my hands
:)
> >
> > Check this out:
> >
> > http://www.w6pql.com/1_kw_2m_ldmos_amplifier.htm
> >
> > Also see:
> >
> > Some YouTube videos...
> > http://www.youtube.com/watch?v=02v58cnb41o&feature=relmfu
> > http://www.youtube.com/watch?v=-EACUpIhpac
> >
> > F1JRD also has an article in Dubus
> > http://www.qsl.net/f1jrd/MRFE6VP61K25H.html
> > http://www.w6pql.com/1_kw_2m_ldmos_amplifier.htm
> >
> >
> > --
> >
> >
> > 73,
> >
> > Gary K9GS
> >
> > Check out K9NS on the web:  http://www.k9ns.com Greater Milwaukee DX
> > Association: http://www.gmdxa.org Society of Midwest Contesters:
> > http://www.w9smc.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] K-3 with High Current Problem on 20 meters

[Olli Tuppurainen]

I had the same problem on 10m. 

My power supply ( 30A max ) had a voltage drop from 13.8V to 12.5V on 100W
output. I was instructed by Elecraft to " increase the power supply voltage
to 14.0 to 14.5VDC under no load, and make sure the is as direct of
connection as possible between the power supply " Then my power supply
voltage was dropping from 14.5V to 13.8V ( looking from K3 DC voltage meter
)

This cured my problem at least in home use.


B.R

Olli 
OH6CT

> -Alkuperäinen viesti-
> Lähettäjä: elecraft-boun...@mailman.qth.net [mailto:elecraft-
> boun...@mailman.qth.net] Puolesta Robert Redmon
> Lähetetty: 2. kesäkuuta 2011 14:45
> Vastaanottaja: r...@aol.com
> Kopio: elecraft@mailman.qth.net
> Aihe: Re: [Elecraft] K-3 with High Current Problem on 20 meters
> 
> Dick,
> 
> I have a similar problem on 20 meters, and (in my case) it seems to be
> antenna related (although the swr is below 1.5:1). When I check it on a
> dummy load, the current on 20 is normal.
> 
> Bob K5SM
> 
> On 6/1/2011 11:35 PM, r...@aol.com wrote:
> > My K-3 has a high current problem on 20 and 30 meters but all of the
> other
> > bands are normal.
> >
> > Example currents into a Dummy Load as read on both the K-3 and Astron
> PS
> > ammeters are:
> >
> > -20 meters @ 40 watts draws 19 amps.
> > -20 meters @ 100 watts the "High Current" warning message comes on
> and
> > draws 28 amps on the Astron.
> >
> > All other bands 160-6 meters, 40 watts draws an average of 12 amps
> and 100
> > watts an average of 20 amps.
> >
> > Any idea what the K-3's problem is on 20&  30 meters?
> >
> > Thanks,
> >
> > Dick- K9OM
> > __
> > 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] Recommended AGC settings for separation of signals in CW pile-ups

[Olli Tuppurainen]

I use AGC THR=8, SLP=002 + AGC DCY SOFT. This sound OK with my modest
pileups ;)

Another issue is if you get someone loud to your zero beat ( or within your
roofing filter passband ) then hardware AGC will go up..

Olli
OH6CT


> -Alkuperäinen viesti-
> Lähettäjä: elecraft-boun...@mailman.qth.net [mailto:elecraft-
> boun...@mailman.qth.net] Puolesta Bob Henderson
> Lähetetty: 5. joulukuuta 2010 11:39
> Vastaanottaja: elecraft@mailman.qth.net
> Aihe: [Elecraft] Recommended AGC settings for separation of signals in
> CW pile-ups
> 
> CQ WW CW is now over.  We used K3s at P3F this year.  While performance
> was
> generally considered good, some questions were raised over the
> effectiveness
> of the K3 in separating signals in large piles.
> 
> Similar concerns appear to have surfaced from other users including the
> guys
> at 9L5VT and C6ATA.  Anecdotal evidence suggests the old TS930 and
> TS850
> performed better in such circumstances.  I suspect the AGC systems of
> the
> K3s used had not optimised.
> 
> Has collective experience of the K3 contesting community derived
> optimum
> settings for the K3 AGC system in this kind of situation?
> 
> Thanks
> 
> Bob, 5B4AGN
> __
> 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] Yamaha CM500

[Olli Tuppurainen]

This is what B&H photo web shop is claiming if choose EU destination ( or at
least Finland )

" Due to the manufacturer’s restrictions, B&H Photo is unable to ship this
item to an international destination: We apologize for any inconvenience
this may have caused you. "

Olli
OH6CT

-Alkuperäinen viesti-
Lähettäjä: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] Puolesta Kevin Hibbs
Lähetetty: 18. marraskuuta 2010 13:51
Vastaanottaja: Deane Walkington
Kopio: elecraft@mailman.qth.net
Aihe: Re: [Elecraft] Yamaha CM500

I got mine from B and H Photo in NYC.  I believe they ship internationally.

http://www.bhphotovideo.com/find/HelpCenter/Shipping.jsp

http://www.bhphotovideo.com/c/product/375558-REG/Yamaha_CM500_CM500_Headset_
with.html

73,
Kevin
KG4TEI



On Thu, Nov 18, 2010 at 12:41 AM, Deane Walkington
 wrote:
> Does anyone know of a US store that will ship Yamaha CM 500 to an
> international address, that is a country  other than USA and Canada?
>
> Deane
> VK1DW
> K3 3940
>
>
> __
> 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] New K3 Beta Release: APF for CW, "Fast Monitor" & improved TX gate for voice modes

[Olli Tuppurainen]

With this release SSB audio with processor on went very rough...also I can
hear funny audio artifact ( on TX monitor ) if I whistle to microphone.
After reverting to 4.14 everything back to normal.

APF was still great :)

Olli
OH6CT


-Alkuperäinen viesti-
Lähettäjä: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] Puolesta Lyle Johnson
Lähetetty: 6. marraskuuta 2010 1:33
Vastaanottaja: Elecraft Reflector; elecraft...@yahoogroups.com;
elecr...@yahoogroups.com
Aihe: [Elecraft] New K3 Beta Release: APF for CW, "Fast Monitor" & improved
TX gate for voice modes

K3 beta-test firmware revision 4.18 (with DSP rev. 2.67) is now
available. This release includes our new APF (audio peaking filter)
for CW mode, which has been helping K3 field testers work "extreme"
weak DX for the past several days.

For voice modes, there's a "Fast Monitor" option (TX voice monitor
without the processing delay). Also included is a much-improved TX
Noise Gate.

This release fixes a problem with low initial output in SSB Tx.

See detailed release notes below.

Please send any questions tok3supp...@elecraft.com. For instructions
on how to load beta firmware, see:

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

73,
Lyle
KK7P

* * *

MCU 4.18 / DSP 2.67 / FPF 1.14, 11-5-2010

NOTE: Be sure to install all firmware files for this release,
including FPF 1.14. Otherwise your menu text will be incorrect.

* APF (AUDIO PEAKING FILTER) ADDED: APF provides enhanced
copy of weak signals in CW mode, and is especially useful when
signals are at the noise level. The K3’s APF is patterned after
the most successful analog APF implementations, and is equally
effective in user tests. To use APF, make sure CONFIG:DUAL PB
is set to APF. (This is the default. “NOR” restores the original DUAL PB
function.) Then hold DUAL PB to turn APF on/off. A special DSP
graphic display is used to show that APF is in effect. At the time
APF is activated, the regular I.F. SHIFT setting, if any, is “frozen,”
and SHIFT then controls the center pitch of the APF filter in 10-Hz
steps. APF is independent for the main and sub receivers, as well
as for presets I and II. Switching between these two presets is a
convenient way of turning APF on/off quickly.

* ADDED VOICE TX “FAST MONITOR”: Normally the voice
monitor includes a ~20-ms delay, which is necessary to hear how your
on-air signal will sound (with compression, etc.). If you prefer to not
hear any delay in the voice monitor, set CONFIG:TX MON to FAST.
Note: You’ll still hear the delayed and processed monitor if you
adjust the MIC, CMP, TX EQ or TX GATE settings while transmitting.

* TX NOISE GATE IMPROVEMENT: The Noise Gate/Downward
Expander for voice modes has smoother response and much
improved performance near the threshold.

* NARROW AF FILTER IMPROVEMENT: Adjusting SHIFT when using very
narrow DSP filters no longer causes ‘pop’ artifacts.

__
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 MCU 4.17 (APF beta) kills SSB output?

[Olli Tuppurainen]

Same thing..with 4.17 beta my SSB output dropped to 50W...reverted back to
4.14 everything is ok.
APF was great though ;)

Olli
OH6CT

-Alkuperäinen viesti-
Lähettäjä: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] Puolesta Nate Bargmann
Lähetetty: 4. marraskuuta 2010 19:19
Vastaanottaja: Elecraft list
Aihe: [Elecraft] K3 MCU 4.17 (APF beta) kills SSB output?

I updated my K3 to MCU 4.17 beta last night along with DSP 2.65 and FPU
1.4(?) and now today I notice that my SSB output is down about 3 dB.  I
can only coax about 50 Watts peak out of it and I've made no changes to
microphone, TX EQ, Mic Gain, Compression, or output power (set to 100 W).  
CONFIG:TXG VCE is set to 1.0 dB as before.

On CW I get a full 100 Watts peak.

Anyone else seeing this?

73, de Nate >>

-- 

"The optimist proclaims that we live in the best of all
possible worlds.  The pessimist fears this is true."

Ham radio, Linux, bikes, and more: http://n0nb.us/index.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] Roofing filter for CW

[Olli Tuppurainen]

One thing to remeber is that if you get strong signal within your roofing
filter passband you will notice that AGC will go up to protect DSP
overloading. Then you have use for narrower roofing filters.

I have 400Hz but considering to add 200Hz after working couple of CW and
RTTY contest on 40 meters :)


Olli
OH6CT

> -Alkuperäinen viesti-
> Lähettäjä: elecraft-boun...@mailman.qth.net 
> [mailto:elecraft-boun...@mailman.qth.net] Puolesta n...@aol.com
> Lähetetty: 16. helmikuuta 2010 20:51
> Vastaanottaja: elecraft@mailman.qth.net
> Aihe: [Elecraft] Roofing filter for CW
> 
> 
>  
> 
>  As a prospective buyer of the K3, and a 100 percent CW op, I 
> am wondering which of the roofing filters is the correct 
> choice, assuming I am buying only one??  I usually find that 
> when operating weak sigs with my Pro 3, a bandwidth of about 
> 600 to 800 hz is plenty adequate in normal QRM conditions.  
> With that is mind, am I better off with the 1000 or 500 HZ 8 
> pole filter???
> 
> Bill, N6FB
> 
> 
> __
> 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] [Elecraft_K3] TX CW discrepancy

[Olli Tuppurainen]

What I have noticed is that K3 internal keyer weight changes between VOX and
use of footswitch.

I tend to press footswitch time to time to prevent amplifier relay sound (
AL1200 relay is loud ) but noticed this bit annoying feature after trying K3
internal keyer instead of microkeyer. 

The weight change is roughly from 1.10 to 1.20 ( from Vox to Footswitch )

Olli
OH6CT

> -Alkuperäinen viesti-
> Lähettäjä: elecraft-boun...@mailman.qth.net 
> [mailto:elecraft-boun...@mailman.qth.net] Puolesta Igor Sokolov
> Lähetetty: 31. tammikuuta 2010 16:49
> Vastaanottaja: Elecraft@mailman.qth.net
> Kopio: Elecraft@mailman.qth.net
> Aihe: [Elecraft] [Elecraft_K3] TX CW discrepancy
> 
> It has started with complains of some of our contacts in the 
> contest. They told us that the weighting of out TX CW is not standard.
> Two channel oscilloscope was brought into shack and 3 K3 
> tcvrs were checked:
> SN 1651 SW ver 3.06
> SN 2929  SW ver 3.68
> SN 3553  SW ver. 3.41
> On all 3 units series of dots were sent using external keyer 
> with 50% weight. While on the monitor output the weight 
> remained to be 50% the RF output showed shortening of dots 
> (and therefore lengthening of spaces) by 7 or 8 msec. This 
> effect does not depend on WPM speed and therefore less 
> pronounced at slower speeds.
> Could somebody confirm this please. We do not want to trouble 
> Elecraft without being 100% sure that the problem exists.
> 
> 73, Igor UA9CDC 
> 
> __
> 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 needs survey -- firmware and application software

[Olli Tuppurainen]

I would like to see separate RX EQ setting possibilities for CW and SSB.
At least I prefer totally different values in different modes

BR and HNY

Olli
OH6CT


> -Alkuperäinen viesti-
> Lähettäjä: elecraft-boun...@mailman.qth.net 
> [mailto:elecraft-boun...@mailman.qth.net] Puolesta Wayne Burdick
> Lähetetty: 23. joulukuuta 2009 20:02
> Vastaanottaja: Elecraft Reflector; elecr...@yahoogroups.com; 
> elecraft...@yahoogroups.com
> Aihe: [Elecraft] K3 needs survey -- firmware and application software
> 
> Hi all,
> 
> As you probably know, we keep a list of firmware features and 
> improvements to be added as time permits. Many of the 
> most-requested changes were made over the past several 
> months, keeping pace with the demands of the fall/winter 
> contest season. (A few that come to mind:  
> switch sequence automation via macros, improved DVR 
> interaction with PTT, main/sub audio mixing, improved NR, 
> lockable transmit controls, and many enhanced remote-control 
> commands.)
> 
> As we head into 2010, we'd like to refresh the master 
> firmware list based on your input. Items already on the list 
> have priority, of course, but this is a great opportunity to 
> let us know what else is missing or could be improved. Our 
> goal is to make the K3 as easy to use as possible, while 
> providing the advanced features you need for specific 
> operating situations.
> 
> We're also planning a renewed effort to assist application 
> software developers. If your ideas for improvements involve 
> changes to both K3 firmware and a favorite application, we'll 
> pass it along to the developers and work with them closely.
> 
> We're making great progress on the P3 Panadapter and other 
> new products. There will be some surprises in 2010 :)
> 
> 73,
> Wayne
> N6KR
> 
> __
> 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: AGC Adjustment

[Olli Tuppurainen]

I have found so many different adjustment parameters for AGC in K3 that I
would apperciate " AGC settings for dummies " type of instructions.  :)

I previously owned IC-756PRO3 which can be used as reference of well
functioning AGC among DSP radios. Very pleasant experience.

Olli
OH6CT


> -Alkuperäinen viesti-
> Lähettäjä: elecraft-boun...@mailman.qth.net 
> [mailto:elecraft-boun...@mailman.qth.net] Puolesta David 
> Ferrington, M0XDF
> Lähetetty: 9. joulukuuta 2009 17:53
> Vastaanottaja: elecraft@mailman.qth.net
> Aihe: Re: [Elecraft] K3: AGC Adjustment
> 
> That certainly helps me a lot, I have been struggling with K3 
> AGC settings and this helps a lot, I don't remember seeing 
> this posted before.
> 
> So thanks to Don for posting the link and many, many thanks 
> to Jack for making it clearer.
> I just need to read that a few more times now.
> 73 de M0XDF, K3 #174
> --
> Everything secret degenerates, even the administration of 
> justice; nothing is safe that does not show how it can bear 
> discussion and publicity.
> -Lord Acton, historian (1834-1902)
> 
> On 9 Dec 2009, at 13:15, Don Wilhelm wrote:
> > If charts are helpful to you, Jack
> > Smith has measured and plotted the AGC response for the K3 - see 
> > 
> http://www.cliftonlaboratories.com/elecraft_k3_agc_and_s-meter.htm#AGC
> > _SLP_and_AGC_THR
> 
> __
> 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