[Elecraft] Next Question: DATA A with K3s and Fldigi

[Kevin, N4TT]

My first PSK-31 contact seemed to go very well. I simply adjusted the MIC
level (Line) until there was 5-7 ALC bars. The adjustment was quite smooth.

Then I went off and did other things and I'm concerned I changed something.
Now I have to turn the level way way down on the USB Audio CODEC (-16.4
dB). Then I add another -3 dB using fldigi. Finally, I adjust the Mic to
Line = 17. The Mic adjustment isn't smooth.

The major change was the addition of the KAT500 and KPA500 (stby) and I'm
wondering if either I messed up a setting or maybe created an opportunity
for some RF feedback that's affecting the audio.

At this point, I don't know how to confirm the signal is clean (especially
PSK-31). I've only had one report of a possible problem and a number of
reports of "things look good" so I'm calling that a wash.

I found nothing in the instructions that told me to drop the level of the
USB Audio CODEC and -16.4 dB seems like a big drop. The CODEC is set for 16
bit, 48000 Hz.

Am I worrying about nothing? Is your setup with fldigi and DATA A using the
K3s's internal sound card similar?

Thanks for your patience.

73,
Kev N4TT
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Re: [Elecraft] K4 Panadapter?

[Ed W0YK]

Either configuration is selectable. 73,Ed W0YK
 Original message From: Rich  Date: 
6/16/19  20:52  (GMT-08:00) To: Elecraft  Subject: 
[Elecraft] K4 Panadapter? While looking at the K4 in Dayton I thought I saw the 
panadapter screen split in two.   The main rx on one side, the sub rx on the 
other.I noticed today that picture of the K4 in QST does not show that split 
screen.Is there a separate panadapter for each RX?Were my eyes deceiving me in 
Dayton?Rich__Elecraft
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[Elecraft] Elecraft CW Net Report

[kevinr]

Good Evening,

  Twenty meters was interesting today.  Signals would appear for a few 
seconds and then be gone.  But normally they came back again and again.  
Reports came in from Alaska to Connecticut, Iowa to California but the 
closest was from about 16 miles away.  Forest Grove, Oregon sits in a 
gap in the mountains to my south.  Some parts of it are line of sight to 
me.


   Forty meters was more normal, Idaho to California.  The QSB was less 
deep there with a few loud storms.  Father's Day greetings traveled the 
rounds.



  On 14050.5 kHz at 2200z:

KL7CW - Rick - AK

K6XK - Roy - IA

KA1J - Gary - CT

K0DTJ - Brian - CA

N7GR - Greg - OR


  On 7047.5 kHz at z:

K6PJV - Dale - CA

W6JHB - Jim - CA

WM5F - Dwight - ID

K0DTJ - Brian - CA


   Enjoy the last few days of spring,

   73,  Kevin.  KD5ONS

_


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Re: [Elecraft] K4 Panadapter?

[Rich]

That is way cool!

Thanks

Rich

K3RWN

On 6/16/2019 23:59 PM, August "Gus" Hansen wrote:
Your eyes (and associated brain function) are working fine. You can 
select either single or dual panadapter display.


Gus Hansen
KB0YH


On 6/16/2019 9:52 PM, Rich wrote:
While looking at the K4 in Dayton I thought I saw the panadapter 
screen split in two.   The main rx on one side, the sub rx on the other.


I noticed today that picture of the K4 in QST does not show that 
split screen.


Is there a separate panadapter for each RX?

Were my eyes deceiving me in Dayton?


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Re: [Elecraft] K4 Panadapter?

[August "Gus" Hansen]

Your eyes (and associated brain function) are working fine. You can 
select either single or dual panadapter display.


Gus Hansen
KB0YH


On 6/16/2019 9:52 PM, Rich wrote:
While looking at the K4 in Dayton I thought I saw the panadapter 
screen split in two.   The main rx on one side, the sub rx on the other.


I noticed today that picture of the K4 in QST does not show that split 
screen.


Is there a separate panadapter for each RX?

Were my eyes deceiving me in Dayton?


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[Elecraft] K4 Panadapter?

[Rich]

While looking at the K4 in Dayton I thought I saw the panadapter screen 
split in two.   The main rx on one side, the sub rx on the other.


I noticed today that picture of the K4 in QST does not show that split 
screen.


Is there a separate panadapter for each RX?

Were my eyes deceiving me in Dayton?

Rich

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Re: [Elecraft] K3s Sensitive adjustment for FT8

[Bob McGraw K4TAX]

Thanks to Microsoft for the update.  Things changed.

73

Bob, K4TAX


On 6/16/2019 5:48 PM, Gary Smith wrote:

All excellent advice. The issue for me is
this was new behavior, it was not like
this 2 weeks ago. I have from the
beginning, kept the windows sound levels
around 52 and always had the expected good
behavior. About a week ago I discovered I
was having the issues I posted about. I
had not made any adjustments and indeed
the computer and the software continued to
use the USB source from the K3s.

Baffling as to why the change.

73,

Gary
KA1J


Bob's statement (below) provides a good reason for using a dedicated
USB soundcard for digital modes - and make sure Windows does not set
it as the default soundcard. You do not need an expensive soundcard
for digital modes, many of them can be found in the $25 price range
and are more than adequate for the task.

73,
Don W3FPR

On 6/16/2019 6:04 PM, Bob McGraw K4TAX wrote:

Also if you use your computer for other "sound" activities, any
change made from that activity may or will change other
things.    Just understand how things works and expect to quickly
be able to make adjustments with good understanding as to why they
need changing. None is a set-and-forget system.

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Re: [Elecraft] Terminal resistance

[Bob McGraw K4TAX]

The company for which I previously worked designed and built recording 
studio consoles.   In order to eek out every bit of noise, that is 
achieve the lowest noise floor, it was necessary to crimp and then 
solder the lugs on the power supply cables on both ends.  Crimping was 
only OK and was done until it was discovered that also soldering the 
lugs did lower noise floor a few dB. This leads me to conclude that 
crimping AND soldering is preferred, leading to a lower resistance 
connection.


For lightning grounding, joints and terminations, soldering alone is not 
permitted.  Crimping is required.


Yes, lugs can not be soldered alone.  They must be crimped first and 
THEN soldered.    At the same time, some installations of aeronautical 
equipment, along with NASA procedure, I do understand does indicate 
sweating solder into the lug and it thereby wicking up into the stranded 
wires makes for a "stiff" connection.   This connection is reported to 
break under vibration conditions.   I've personally never experienced 
such with ham equipment, although I've never carried any into space.  I 
suppose there is merit to this directive.    Perhaps you FAA and NASA 
types can expand this thought.


I am also aware with power distribution systems, a.k.a TVA,  it is quite 
common to use a crimp method to join wires.   These conductors  are 
several thousand circular mills in size and are of many layers of 
stranded conductors.  When properly and completely crimped by a 
hydraulic crimp machine, the joint is void of space. If fact, having cut 
one of these in half just to see for myself, it appeared as a solid rod 
with no voids observed.  Thus the strands were compressed to that 
degree.    The center strand was steel as the messenger and the five 
outer layers of aluminum were alternating in direction of rotation, 
clockwise wound and counterclockwise wound.


In most cases, crimping connectors with a crimping tool which has the 
correct die for the connector is noted to be satisfactory.  On the other 
hand, I've seen many cables in various ham applications which were 
installed using what ever was handy to mash the sleeve.   That is NOT 
crimping.  Crimping does not distort the tubular diameter nor round 
shape of the sleeve as the correct size die prevents distortion of the 
sleeve.   A correct crimping tool puts a dimple in one side of the sleeve.


And now you know the rest of the story.

73

Bob, K4TAX

On 6/16/2019 7:27 PM, Nate Bargmann wrote:

* On 2019 16 Jun 18:50 -0500, Kidder, George wrote:

Interesting data, Don.  I wonder if there is any information about
resistance variations between soldered and crimped terminals.  One might
think that, with stranded wire, even a good crimp connection might not
solidly involve all of the strands, and might additionally deteriorate
with time since oxygen could get between the strands.  A good solder job
should wet the wire through and (additionally) exclude oxygen.  This
wouldn't be easy to measure, for sure, but these engineers are cleaver
people!

For what it is worth, the company I worked for prohibited the use of
soldered connectors for terminating bonding or power wiring.  Especially
with regard to bonding, dissipating any lightning strike energy through
a soldered connector could cause it to enough to melt the solder.  In
doing some microwave site upgrades I did pull out a previous generation
of bonding wiring that was soldered and some connectors had signs of
being heated since installation.

In my shack I use crimp connectors and a quality crimping tool with no
problems.

73, Nate, N0NB



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Re: [Elecraft] Terminal resistance

[Mark Goldberg]

I cut a cross-section of my battery cable crimps and it essentially is one
solid block of copper:

See this page:

https://sites.google.com/site/marksrvmods/home/battery-wiring

Note that expensive crimpers are "calibrated". They make one or more
connections on sacrificial wiring and cross-section them to verify that the
crimps are good. Since I cheaped out on a crimper, I did the same to give
me some confidence it was done right. A better crimper with the correct
sized dies would not require the careful multiple crimps I had to do with
this wiring.

I've used the Powerwerx crimping tools on many 15, 30, 45 and 75A
Powerpoles and not had any issues with them. I don't solder them.

73,

Mark
W7MLG
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[Elecraft] Terminal resistance

[Andy Durbin]

"but these engineers are cleaver people!"

Engineers with slide rules are arguably less of a threat than those with 
cleavers.

Resistance is futile...

73,
Andy, k3wyc
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[Elecraft] Elecraft SSB Net for Sunday June 16, 2019

[Jim White NC0JW]

Today the Elecraft SSB net on Fathers Day yielded 16 check ins with what has 
become the norm, strange propagation.  Our relay stations saved the day  Thanks 
to KO5V Jim, W4DML Doug and N4NRW Roger for your relay help.

W1NGA   AL  CO  K3  5765
N0MPM   MikeIA  K3S 10514
KO5VJim NM  K2  7225Relay Station
W4DML   DougTN  K3  6433Relay Station
WA5DSS  BillTX  K3S 10835
AD1GDickMA  K3  3782
K0JFJ   NickMN  K3S 11870
KC0BCZ  DaveCO  Yaesu FT-991A/KPA500
K6WDE   DaveCA  KX3 4599
N4NRW   Roger   SC  K3  1318Relay Station
KE6JZF  TonyCA  Yaesu FT-1200
KE5VDT  Roger   TX  K3  6054
N2TNQ   Len NJ  K3  5270
WD0AKZ  George  MN  KX3 4830 10 watts
WA9STI  Scott   CA  K3S 10983
NC0JW   Jim CO  KX3 1356

The Elecraft SSB Net meets on Sunday at 1800 UTC on or about 14.3035 MHz. Our 
Net Control Station is Eric WB9JNZ in Chicago, IL.  With propagation at a low 
point we employ several relay stations located around the continental USA to 
assist with check ins.  As conditions permit we take questions and comments 
after check ins.   

With many of our regulars involved in Field Day next Sunday our next regularly 
scheduled net will be two weeks from today on Sunday June 30, 2019 at 1800 UTC. 
 Mark your calendar, drop on by and join in the fun. 

 73

Jim White - NC0JW
ars.nc...@gmail.com






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Re: [Elecraft] Terminal resistance

[Don Wilhelm]

George,

Solid wire will eventually break if it is flexed - and it will break 
right where the terminals are attached.


Stranded wire that is soldered will also break - right where the end of 
the solder that wicked up the wire stops.


The best is stranded wire with crimped connections made with a proper 
crimping tool.  Done properly, that should result in an air-tight 
connection that should not oxidize.


In order to do that, you must use a crimping tool that is sized for the 
wire and terminal that you are using.  Crimping with just any tool will 
"not get it".


If you do not have the proper crimping tool, soldering is OK, but 
support the wire for about 2 inches away from the soldered terminal so 
there is no chance that it can flex.


73,
Don W3FPR

On 6/16/2019 7:22 PM, Kidder, George wrote:

Interesting data, Don.  I wonder if there is any information about
resistance variations between soldered and crimped terminals.  One might
think that, with stranded wire, even a good crimp connection might not
solidly involve all of the strands, and might additionally deteriorate
with time since oxygen could get between the strands.  A good solder job
should wet the wire through and (additionally) exclude oxygen.  This
wouldn't be easy to measure, for sure, but these engineers are cleaver
people!

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Re: [Elecraft] Terminal resistance

[Nate Bargmann]

* On 2019 16 Jun 18:50 -0500, Kidder, George wrote:
> Interesting data, Don.  I wonder if there is any information about 
> resistance variations between soldered and crimped terminals.  One might 
> think that, with stranded wire, even a good crimp connection might not 
> solidly involve all of the strands, and might additionally deteriorate 
> with time since oxygen could get between the strands.  A good solder job 
> should wet the wire through and (additionally) exclude oxygen.  This 
> wouldn't be easy to measure, for sure, but these engineers are cleaver 
> people!

For what it is worth, the company I worked for prohibited the use of
soldered connectors for terminating bonding or power wiring.  Especially
with regard to bonding, dissipating any lightning strike energy through
a soldered connector could cause it to enough to melt the solder.  In
doing some microwave site upgrades I did pull out a previous generation
of bonding wiring that was soldered and some connectors had signs of
being heated since installation.

In my shack I use crimp connectors and a quality crimping tool with no
problems.

73, Nate, N0NB

-- 

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

Web: https://www.n0nb.us  GPG key: D55A8819  GitHub: N0NB
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Re: [Elecraft] Vanity call question

[Tom Azlin W7SUA]

I did not go full circle.

My novice call was WN7SUA living in Arizona but I never upgraded ( even 
though I think I could just have taken the test for Tech Class). 10 
years later I got back in ham radio as N4ZPT while in Virginia. When we 
both retired and moved back to Arizona I requested and received W7SUA. 
Would have been my call had I upgraded from Novice to General. I am the 
second holder of WN7SUA and W7SUA best I can tell.


Great thread. Hope it has not been closed! If so my apologies!

73, tom w7sua

On 7/13/2018 3:35 PM, Dauer, Edward wrote:

  KN1CBR was issued as my Novice call in 1957.  Then for a number of years as a 
General and Extra I was K1CBR.  Late in life I was struck by nostalgia and 
requested KN1CBR again in an effort to recapture my youth.  I got the call, but 
the youth that went with it had apparently been assigned to someone else.

Ted, KN1CBR

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Re: [Elecraft] K4 pre-distortion?

[David Woolley]

I don't think any automatic noise reduction system is intended for use 
on Morse code.  The way to reduce noise on that is to use a narrow filter.


NR is really only intended for speech (or in the wider world, music). 
The key characteristic is that only a small part of the spectrum is 
important at any one time, but that part is continually changing.


NR systems try to work out which parts of the audio spectrum are 
important and which are not, and construct filters to remove the latter. 
 For CW anything other than the immediate area around the signal is 
unimportant, and it is not continually changing.


The only way you could do better with Morse is by recognizing the signal 
and regenerating it as a pure keyed tone.


The human brain and ear are actually rather good at noise reduction; the 
problem is that they tire easily.  NR attempts to make listening less 
tiring, not to change a signal from unreadable to readable.


--
David Woolley


On 16/06/2019 07:39, Dave wrote:

The K3 noise reduction is very poor, I have never found it useful on SSB,
and certainly not on CW.


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Re: [Elecraft] Terminal resistance

[Kidder, George]

Interesting data, Don.  I wonder if there is any information about 
resistance variations between soldered and crimped terminals.  One might 
think that, with stranded wire, even a good crimp connection might not 
solidly involve all of the strands, and might additionally deteriorate 
with time since oxygen could get between the strands.  A good solder job 
should wet the wire through and (additionally) exclude oxygen.  This 
wouldn't be easy to measure, for sure, but these engineers are cleaver 
people!

73 - George, W3HBM

On 6/12/2019 7:55 PM, Don Wilhelm wrote:
> [This message came from an external source. If suspicious, report to 
> ab...@ilstu.edu]
> 
> After consulting copper wire tables and typical connection resistances,
> I can present the following analysis for a 20 amp load:
> 
> Often hams power their 100 watt transceivers through DC distribution
> devices such as a RigRunner which will contribute to the voltage drop.
> Also in-line fuses will contribute to voltage drop.
> 
> Connection resistance contributes .05 volt loss under a 20 amp load for
> each contact point, you have 6 contact points in the path for a fused
> RigRunner plus two in the APP connector at the transceiver, plus the
> connection to the power supply for a total of 10 contact points.  You
> have to consider the negative path as well as the positive.  So that is
> a total of 0.5 volts of the total voltage drop.
> 
> By contrast, a 5 foot length under a 20 amp load of #12 wire has 0.1588
> ohms (in both conductors) for a voltage drop of 0.3176 volts, and #10
> wire a drop of 0.1998 volts.
> 
> So conclusion is that while increasing the wire size can reduce the
> voltage drop, the main contributor is in the power distribution system.
> 
> A path direct from the power supply terminals can be expected to have a
> 0.5 volt drop with 5 feet of #12 wire to the inside of the K3. and #10
> wire can have a 0.4 volt drop - the difference is only slightly 
> significant.
> 
> Conclusion - in a 5 foot power cable run, the difference between #10 and
> #12 wire is only 0.1 volts (0.05 volts in each of the positive and
> negative leads) - the major contributor is the number of contact points.
> 
> So for those who choose to measure the voltage drop from the power
> supply terminals to the APP connector on the outside of the K3, you
> should measure about 0.2 volts in each conductor with #12 wire and 0.15
> volts with #10 wire.  If it is much more than that, check your power
> supply connection tightness and your crimp connections.
> 
> Run the transceiver direct from a power supply using ring terminals
> instead of routing through a power distribution accessory.
> 
> 73,
> Don W3FPR
> 
> On 6/12/2019 6:29 PM, Bob McGraw K4TAX wrote:
>> Regarding "heavy gauge wire", I suggest one measure the voltage drop
>> using a DVM connected direct between the power supply Pos terminal and
>> the radio Pos terminal.   Likewise do the same for the Neg DC line. Put
>> the radio in CW mode and close the key for rated output.    If one finds
>> more than 0.25 volts drop in either the Pos or Neg line, I'd say that
>> attention to the power cable and connectors would be in order. Also
>> measure between radio ground and power supply ground.   Again a voltage
>> value greater than 0.25 volts indicates attention to the power
>> distribution system and station equipment grounding is needed.
>>
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Re: [Elecraft] K3s Sensitive adjustment for FT8

[Gary Smith]

All excellent advice. The issue for me is 
this was new behavior, it was not like 
this 2 weeks ago. I have from the 
beginning, kept the windows sound levels 
around 52 and always had the expected good 
behavior. About a week ago I discovered I 
was having the issues I posted about. I 
had not made any adjustments and indeed 
the computer and the software continued to 
use the USB source from the K3s.

Baffling as to why the change.

73,

Gary
KA1J

> Bob's statement (below) provides a good reason for using a dedicated
> USB soundcard for digital modes - and make sure Windows does not set
> it as the default soundcard. You do not need an expensive soundcard
> for digital modes, many of them can be found in the $25 price range
> and are more than adequate for the task.
> 
> 73,
> Don W3FPR
> 
> On 6/16/2019 6:04 PM, Bob McGraw K4TAX wrote:
> >
> > Also if you use your computer for other "sound" activities, any
> > change made from that activity may or will change other
> > things.    Just understand how things works and expect to quickly
> > be able to make adjustments with good understanding as to why they
> > need changing. None is a set-and-forget system.
> __
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Re: [Elecraft] Help with IF Noise, DSP Noise, NR settings

[Bill Johnson]

Using the AGC control is also a big factor when dealing with noise with the 
K3/S.  I find the controls help me with communications as the noise sources 
where I live are many.  Understanding the use of the controls as written by Don 
W3FPR, is very helpful.  He has a website that has much educational and 
instructional ways to use the controls effectively.

73,
Bill
K9YEQ

https://wrj-tech.com/

-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of Bill
Sent: Sunday, June 16, 2019 9:04 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Help with IF Noise, DSP Noise, NR settings

When it comes to eliminating extraneous noise, I have always found the
K3 to be very lacking of any super powers.

Mostly, the results were about the same as any other rig out there. Kind of OK 
for ignition noise - using the NB. Of course the NB can screw with the 
bandwidth of the receiver and allow nearby signals to interfere when they would 
normally not. Nothing new about this - just like all the others. So far as the 
NR - all the various (and there are many) settings result in lowered audio 
output and various levels of "under water" 
effects. Effectiveness against lightning static is nonexistent.

I would be remiss if I did not mention that my IC-7300's NR is very effective 
against junk when needed and does not introduce "under water" 
effects. It is also quite effective against lightning static - not 100%, 
however, I would estimate 80 to 90%. As a result, the 7300 is the go-to rig for 
noisy weather conditions. I have had no occasion to try the NB, so cannot 
report on same.

As always, the ATT and/or RF GAIN are your friends.






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Re: [Elecraft] K3s Sensitive adjustment for FT8

[Don Wilhelm]

Bob's statement (below) provides a good reason for using a dedicated USB 
soundcard for digital modes - and make sure Windows does not set it as 
the default soundcard.
You do not need an expensive soundcard for digital modes, many of them 
can be found in the $25 price range and are more than adequate for the task.


73,
Don W3FPR

On 6/16/2019 6:04 PM, Bob McGraw K4TAX wrote:


Also if you use your computer for other "sound" activities, any change 
made from that activity may or will change other things.    Just 
understand how things works and expect to quickly be able to make 
adjustments with good understanding as to why they need changing. None 
is a set-and-forget system.

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Re: [Elecraft] K3s Sensitive adjustment for FT8

[Bob McGraw K4TAX]

As I've written in the past, there are 3 places which affect the audio 
levels.   As a good rule, all  three need to be adjusted and all about 
the same value.   Thus the computer SPKR level needs to be about 30% to 
40%,  the WSJT-X PWR slider about 30% to 40% and the radio line gain 
about 30% to 40%.   These are of FULL VALUE what ever scale they may use.


If one has a value at 90% and another at 10% consider that as having one 
foot mashing down on the accelerator and the other foot mashing down on 
the brakes at the same time.   Well you can figure the results out for 
yourself.


Windows does update things from time to time and thus things change.  
Also if you use your computer for other "sound" activities, any change 
made from that activity may or will change other things.    Just 
understand how things works and expect to quickly be able to make 
adjustments with good understanding as to why they need changing.    
None is a set-and-forget system.


73

Bob, K4TAX


On 6/16/2019 4:50 PM, Gary Smith wrote:

Bill & all those who replied,

Thanks. I had tried turning everything to
around 52 in the windows device but that
did not resolve the issue. I dropped it to
1/3 and indeed that resolved the issue.
I've no idea why things are so different
than they were but They are what they are.

Thank you!

73,

Gary
KA1J



Go to the Win10 volume mixer. Turn down the wsjt slider to about 30%
from the bottom. Now the K3 Lin In control will have the proper
adjustment sensitivity.

Sent from my iPhone
...nr4c. bill



On Jun 15, 2019, at 7:43 PM, Gary Smith  wrote:

Something new has come up with the
K3s/JTDX settings and I can't find where
to adjust it to make a change. This is
new, it has been fine till a couple days
ago & maybe the recent win 10 update
nailed me again?

Till now, when setting the levels for Tx
for FT8, I would adjust the setting on the
screen for 4-5 bars with the last one
flickering by adjusting the output with
the speed/Mic knob. The line level would
be somewhere around 5-7 to get this
reading.

Now I have what seems like
hyper-sensitivity, overdrive in that I now
get 5 solid bars with none flickering at
line level 2, I get no bars at line level
1.

With the K3s set at 20W drive:

At line level 0 I have no output.

At line level 1 I have 18W & no bars

At line level 2 I have 5 bars and 18W
output.

There is no adjustment to give me 1, 2, 3
or 4 bars.

I have tried setting the windows sound
settings at different values with no
success, this issue persists.

Any idears?

Thanks,

Gary
KA1J


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Re: [Elecraft] K3s Sensitive adjustment for FT8

[Gary Smith]

Bill & all those who replied,

Thanks. I had tried turning everything to 
around 52 in the windows device but that 
did not resolve the issue. I dropped it to 
1/3 and indeed that resolved the issue. 
I've no idea why things are so different 
than they were but They are what they are.

Thank you!

73,

Gary
KA1J


> Go to the Win10 volume mixer. Turn down the wsjt slider to about 30%
> from the bottom. Now the K3 Lin In control will have the proper
> adjustment sensitivity. 
> 
> Sent from my iPhone
> ...nr4c. bill
> 
> 
> > On Jun 15, 2019, at 7:43 PM, Gary Smith  wrote:
> > 
> > Something new has come up with the 
> > K3s/JTDX settings and I can't find where 
> > to adjust it to make a change. This is 
> > new, it has been fine till a couple days 
> > ago & maybe the recent win 10 update 
> > nailed me again?
> > 
> > Till now, when setting the levels for Tx 
> > for FT8, I would adjust the setting on the 
> > screen for 4-5 bars with the last one 
> > flickering by adjusting the output with 
> > the speed/Mic knob. The line level would 
> > be somewhere around 5-7 to get this 
> > reading.
> > 
> > Now I have what seems like 
> > hyper-sensitivity, overdrive in that I now 
> > get 5 solid bars with none flickering at 
> > line level 2, I get no bars at line level 
> > 1.
> > 
> > With the K3s set at 20W drive: 
> > 
> > At line level 0 I have no output. 
> > 
> > At line level 1 I have 18W & no bars
> > 
> > At line level 2 I have 5 bars and 18W 
> > output.
> > 
> > There is no adjustment to give me 1, 2, 3 
> > or 4 bars.
> > 
> > I have tried setting the windows sound 
> > settings at different values with no 
> > success, this issue persists.
> > 
> > Any idears?
> > 
> > Thanks, 
> > 
> > Gary
> > KA1J
> > 
> > 
> > __
> > Elecraft mailing list
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> > Message delivered to n...@widomaker.com 
> 
> 



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Re: [Elecraft] Help with IF Noise, DSP Noise, NR settings

[W2xj]

That’s the one. The problem is the WECC map does not have many geographic 
references. Just distribution stations and converter stations. The other line 
you referenced is 345 KV according to the WECC map. It Sierra Pacific power. 

Sent from my iPhone

> On Jun 16, 2019, at 13:58, Fred Jensen  wrote:
> 
> Ummm ... actually no.  The line next to us is 2 3-phase AC circuits, based on 
> the size of the insulators, one is 500 KV and the other is 230 KV.  Both are 
> definitely AC, I've seen the transformers they both come from at the power 
> plant at Patrick NV.  Each conductor consists of two parallel strands and 
> there is a lot of anti-corona hardware on the insulators which may account 
> for why it is relatively quiet.  The K3 NB is essentially ineffective against 
> its noise, which is quite obvious on the P3.
> 
> I believe you are referring to "Path 65," aka the "Pacific DC Intertie."  In 
> the south, it terminates at a large switching/converter station in Sylmar CA 
> north of Los Angeles right next to I-5.  It runs north through the Owens 
> Valley [adjacent to and often crossing US 395] and terminates in a 
> switching/converter station near The Dalles, OR.  It's primary purpose is to 
> carry plentiful [and cheap] electricity from the Columbia River south to 
> Southern CA.  It crosses I-80 near Fernley NV, 20 or so minutes east of us.  
> It is distinctive because it has only two conductors and, except for the 
> dead-ends at direction changes, is generally on very simple pylon towers.  I 
> attached a photo from Wikipedia which may or may not come thru.
> 
> Path 65 is very quiet, essentially no change in noise when driving under it.  
> I believe it normally operates at +/-500 KV, but can also be operated against 
> ground at between 700 KV and 1 MV.  The earth electrode for the Sylmar 
> converter station is submerged in the Pacific Ocean west of the station.  
> It's not quite pure DC, there's a 12-phase 720 cycle ripple on it from the 
> rectifiers.
> 
> 73,
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
> 
>> On 6/15/2019 10:55 PM, W2xj wrote:
>> Looking at the MECC map, I’m pretty sure the 500 KV line is +- 500 KV DC so 
>> that would by itself make it pretty quiet. 
>> 
>> Sent from my iPad
>> 
> 
> 
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[Elecraft] [K2] Erratic tuning solved, I think

[Steve Kavanagh via Elecraft]

I took the front panel and control boards off the RF board and reassembled 
themthe intermittent lack of response to tuning knob returned after a 
couple of minutes.

So I tried Don's first couple of steps (reflowing solder on encoder lead and 
front panel board U3) and that seems to have done the trick. Thanks, Don!

Just before I did this I also noted that when the tuning was not working the 
ENC A (or B, I didn't note which) was at a constant 4.3 V instead of switching 
between 5 V and something below 1 V as the tuning knob was turned, and that the 
overall power supply current dropped either 20 or 40 mA from the normal value.  
I am not sure quite what wasn't getting current but the solder reflow seems to 
have stopped it from happening.

Now if only I had gotten to this before last weekend's contest!

73,
Steve VE3SMA
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Re: [Elecraft] K3 Port sharing redux

[Wes]

I have found no substitute for DXBase either.  I have tried them all but stick 
with it.  The problem with most software IMHO, of course, is that it's written 
by software people rather than regular human beings.


I put myself on the list for a K4, but I'll be pushing 79 years of age before 
there will be a bug-free version. If I want a new toy, which I'm thinking I do, 
I might buy a brand K.


Wes  N7WS

On 6/16/2019 4:50 AM, AB4IQ wrote:

Running DXBase from within Win4K3Suite using windows 7 or 10 Pro has never
been a problem.  It fires up just like any other logging problem I have.
Speaking of DXBase I have used it since 1988 or so and really can't find
anything better.  Sorry to say it will never see any additional improvement
and trying to find anything comparable has been an issue for me.  This
really sounds stupid but I'm running three of the major logging programs
along with Dxbase trying to find a substitute and narrowing it down to
several.  By the way I'm doing it with Win4K3 suite and com0com with no
issues.  I have ordered a K4HD and hope that Tom VA2FSQ can provide a
program for that rig since it works so well.

Ed.. AB4IQ


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Re: [Elecraft] Help with IF Noise, DSP Noise, NR settings

[Bill]

When it comes to eliminating extraneous noise, I have always found the 
K3 to be very lacking of any super powers.


Mostly, the results were about the same as any other rig out there. Kind 
of OK for ignition noise - using the NB. Of course the NB can screw with 
the bandwidth of the receiver and allow nearby signals to interfere when 
they would normally not. Nothing new about this - just like all the 
others. So far as the NR - all the various (and there are many) settings 
result in lowered audio output and various levels of "under water" 
effects. Effectiveness against lightning static is nonexistent.


I would be remiss if I did not mention that my IC-7300's NR is very 
effective against junk when needed and does not introduce "under water" 
effects. It is also quite effective against lightning static - not 100%, 
however, I would estimate 80 to 90%. As a result, the 7300 is the go-to 
rig for noisy weather conditions. I have had no occasion to try the NB, 
so cannot report on same.


As always, the ATT and/or RF GAIN are your friends.






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Re: [Elecraft] Bengali adventurer mono key with KX3 mount

[Barry]

Thought it was an amusing typo in your original post, but apparently not.

It's Begali.  No N, unless you're referring to the very rare Indian-made
key.

Barry W2UP



--
Sent from: http://elecraft.365791.n2.nabble.com/
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Re: [Elecraft] K3 Port sharing redux

[AB4IQ]

Running DXBase from within Win4K3Suite using windows 7 or 10 Pro has never
been a problem.  It fires up just like any other logging problem I have.
Speaking of DXBase I have used it since 1988 or so and really can't find
anything better.  Sorry to say it will never see any additional improvement
and trying to find anything comparable has been an issue for me.  This
really sounds stupid but I'm running three of the major logging programs
along with Dxbase trying to find a substitute and narrowing it down to
several.  By the way I'm doing it with Win4K3 suite and com0com with no
issues.  I have ordered a K4HD and hope that Tom VA2FSQ can provide a
program for that rig since it works so well.

Ed.. AB4IQ

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of M. George
Sent: Sunday, June 16, 2019 12:50 AM
To: Elecraft Mailer 
Subject: Re: [Elecraft] K3 Port sharing redux

Wes, maybe I read your email wrong, but you implied that setting up the
com0com pairs was a PITA. You used the acronym PITA and I assumed you were
talking about com0com.  That's why I commented that you actually do not need
to look at the device manager because it appears that confused you. Like
anything, it isn't a PITA after you understand how it works. I showed that
in the video because it would be a natural question for guys to look at.
But again, you do not need to look at the device manager unless you are
curious.  I find it humorous you are using a 12 year old logging program
that is no longer supported. ;) wink, wink. Wow. :) DXBase must really be
something special. ;) I doubt I'll be switching to DXBase any time soon.

You said you were using Omni-rig with WSJT... there is no reason for that
with Win4K3Suite.  You could probably use LP-Bridge too and avoid using
Omni-Rig.  You could if you needed to (use Omni-Rig with
Win4K3Suite) but I see no reason for it unless you like to complicate your
setup... that's what I said in my previous email. The mis-mash of LP-Bridge
and Omni-Rig etc... gets ugly.  And if you were using NaP3 with LP-Bridge
you would see the instability issues much more often...
the dreaded red X in the NaP3 screen.  But again, it doesn't sound like you
are doing that.  You are using SpectraVue?? and I'm not familiar with that,
but if it directly supports the K3 CAT feed connection you could simply
setup a virtual com0com pair there and SpectraVue would think it was
directly connected to the K3.

If you leave your computer running all the time, I'm not sure why the UAC
and or start up of software is a concern either.  That seemed like a big
deal for some reason in your email I replied to.

If auto start of DXBase from Win4K3Suite is a show stopper, you better stick
with LP-Bridge, but I see no reason why you couldn't setup a batch file for
that and have Win4K3Suite start up the batch file that runs DXBase.  You can
see that when you select an auto start program, .bat is one of the options.

Anyway, good luck... if you want to keep this discussion going, I would
suggest we take it off the list here and send direct email.  You asked for
input on sharing the K3 CAT feed and if you wanted my opinion on Win4K3Suite
you certainly got it... :)  I won't be replying on the elecraft list again
related to our discussion.  Send me an email direct.

Max NG7M




Max,

I'm not necessarily set on using LP-Bridge, although it is suiting my needs.
As to its age, my logging program hasn't been updated in 12 years and it
still works fine. I don't have a problem with the start up time, generally,
the computer is on all of the time and my programs are all loaded.  I don't
really care about CAT commands as long as 1) my logging program can read the
K3 frequency and mode, 2)  SpectraVue can communicate with the K3 and vice
versa,
3)  a couple of other programs can do the same.

I never said I was using Omni-rig with Win4K3, that I found necessary to run
FT8 using LPB at someone's suggestion.

I find it a bit humorous to have you tell me that I didn't need to look at
Device Manager since I got the idea by watching your video @29:30  (Yes, I
did watch it and it was helpful).

I launch DXBase using a Windows task to avoid the UAC prompt.  I have a
desktop shortcut that points to that task.  I can run that script in LPB to
autostart DXBase but AFAIK it won't autostart in Win4K3.

Wes


--
M. George
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This 

Re: [Elecraft] K4 pre-distortion?

[Roger]

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dave
Sent: Sunday, June 16, 2019 8:40 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K4 pre-distortion?

In a word yes. Given that in order to match the RX performance of my existing 
K3/P3 (dual RX, K3S synths) it would require me to purchase the most expensive 
K4 version, then to me the only possible advantages over my
K3 would be improved SSB TX IMD and improved RX DSP noise reduction.

---Any numbers out about TX IMD of the K4?

The K3 noise reduction is very poor, I have never found it useful on SSB, and 
certainly not on CW. The K3 TX SSB 3rd/5th/7th/9th IMD products spread very 
wide and resemble a felled Christmas tree laid on its side. So a significant 
improvement in these areas is where the K4 needs to start.

---True - there are much better noise reduction 
algorithms around these days. The noiseblanker in the K3/K3S needs some 
revision too! TX IMD in the K3S (can´t speak of the K3) can be improved 
somewhat by increasing the bias however what is possible with a pair of 
RD100HHF final transistors @ 13,8 VDC is clearly demonstrated by the TS-590 and 
the new TS-890 by Kenwood (I am not a Kenwood promoter or fan but a clean 
signal promoter!). Even with increased bias the K3S is not as 
good

Reading between the lines on both the Elecraft FAQs and this list, from the 
lack of an official mention of pre-distortion or improved TX IMD, I take it to 
mean the provision is a possible future upgrade and not included initially. 
Kinda like Icom including a frequency reference input socket on the IC9700 and 
buyers (incorrectly) assuming the IC9700 locks to an external reference (which 
it doesnt).

--Amplifier manufacturers and radio manufacturers alike 
seem to have accepted that predistortion is the future however only ONE 
manufacturer so far has implemented it as soon as the algorithm became 
available for Ham Radio. Other than that it is easy and inexpensive to add an 
additional sampler in the output of an amplifier and/or an extra jack on a 
radio and label it RF SAMPLE OUTPUT/INPUT. For the moment it is more marketing 
than technical necessity

73 Roger, DL5RBW

73 Dave

>On Sat, 15 Jun 2019 at 12:31, Michael >Walker wrote:

> >Would having if be a deal breaker?
> >
> >Mike
> >
> >Sent from my iPad
>
>
> --
Sent from my iPhone SE
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Re: [Elecraft] K4 pre-distortion?

[Dave]

In a word “yes”. Given that in order to match the RX performance of my
existing K3/P3 (dual RX, K3S synths) it would require me to purchase the
most expensive K4 version, then to me the only possible advantages over my
K3 would be improved SSB TX IMD and improved RX DSP noise reduction.

The K3 noise reduction is very poor, I have never found it useful on SSB,
and certainly not on CW. The K3 TX SSB 3rd/5th/7th/9th IMD products spread
very wide and resemble a felled Christmas tree laid on its side. So a
significant improvement in these areas is where the K4 needs to start.

Reading between the lines on both the Elecraft FAQs and this list, from the
lack of an official mention of pre-distortion or improved TX IMD, I take it
to mean the provision is a possible future upgrade and not included
initially. Kinda like Icom including a frequency reference input socket on
the IC9700 and buyers (incorrectly) assuming the IC9700 locks to an
external reference (which it doesn’t).

73 Dave

>On Sat, 15 Jun 2019 at 12:31, Michael >Walker wrote:

> >Would having if be a deal breaker?
> >
> >Mike
> >
> >Sent from my iPad
>
>
> --
Sent from my iPhone SE
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