date:20170620

Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread Fred Jensen

My experience with noise cancellation, by no means exhaustive or even 
quantitative, is that it is surprisingly effective, almost to the point 
of "magic", provided the noise source is a single point. It was 
essentially ineffective if there were multiple sources, or the source 
was extended in space[e.g. a radiating power line].


Perhaps the best signal-to-noise-ratio-improver I've ever found I 
learned as a teen working at a coastal marine station many years ago. 
The Holy Frequency could be extraordinarily noisy at night... the OT had 
me lay my cans on the deskand turn up the gain a little.  Ioften use it 
todayand it beats a noise limiter [I don't think they exist anymore], 
noise blanker[good for impulse noise], DSP, and cancellation.


I don't really know how it works, I suspect it has something to do with 
the broadband noise being more directive than the CW signalbecause if 
I'm over the headphones, it's less effective than if they're a bit off 
to the side.  I've never tried it with SSB, might do that in a free 
moment.  But, it's pretty cheap. [:-)


I've never gotten much use out of my K3's NR/NB but to be fair, I also 
haven't tried it very much.


73,

Fred ("Skip") K6DGW
Sparks NV USA
Washoe County DM09dn

On 6/20/2017 9:04 PM, Dave Cole wrote:

Don,
Thanks for the info, but as John said, I was suggesting a noise 
canceling setup...  I was not clear enough, my error.


73s and thanks,
Dave
NK7Z
http://www.nk7z.net


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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread tomb18

Just a note. This is with a small amplified  vertical receive antenna, the ncc1 
and all fed through the k3 Rx loop. It's wwv, and the whole thing is switched 
in at the end of the video. 25dBm reduction in the noise. It's also really 
useful for eliminating acting one signal on top of the other. For example Am 
broadcast dxing... I can get rid of a strong am broadcast on top of a weak one. 
Now if only this could be automated and built in to the radio... 

Sent from my Samsung Galaxy smartphone.
 Original message From: tomb18  Date: 
2017-06-21  12:37 AM  (GMT-05:00) To: Dave Cole , 
elecraft@mailman.qth.net Subject: Re: [Elecraft] K3S Noise reduction Test 
I think the ncc1 is under rated. Here is an example  of what it can do. I was 
plagued by a neighbour with outdoor high intensity lights which he insisted on 
leaving on during the day.. It was either this or blasting his house with 
2.4ghz noise whenever his lights were on during the day... It's not the best 
video but it shows what you can achieve... 
https://va2fsq.com/wp-content/uploads/2013-Jan-15-20-43-43.avi 73 Tom 
Sent from my Samsung Galaxy smartphone.
 Original message From: Dave Cole  Date: 
2017-06-21  12:04 AM  (GMT-05:00) To: elecraft@mailman.qth.net Subject: Re: 
[Elecraft] K3S Noise reduction Test 
Don,
Thanks for the info, but as John said, I was suggesting a noise 
canceling setup...  I was not clear enough, my error.

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 06/20/2017 06:39 PM, j...@kk9a.com wrote:
> But that is not what NK7Z is suggesting.  He suggested a built in noise
> canceller which would be awesome!
>
> John KK9A
>
> Don Wilhelm wrote
> Tue Jun 20 19:51:45 EDT 2017
>
> Dave,
>
> The K3S has a receive antenna connection so you can do exactly that.
> The low noise antenna is up to the operator to provide.
> If you have the KRX3 option installed, diversity reception may also help.
>
> 73,
> Don W3FPR
>
> On 6/20/2017 6:21 PM, Dave Cole wrote:
>> What would be really nice would be to have a separate antenna designed
>> for noise reception, and the ability to phase shift it from the normal
>> antenna, allowing for noise cancellation...
>
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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread tomb18

I think the ncc1 is under rated. Here is an example  of what it can do. I was 
plagued by a neighbour with outdoor high intensity lights which he insisted on 
leaving on during the day.. It was either this or blasting his house with 
2.4ghz noise whenever his lights were on during the day... It's not the best 
video but it shows what you can achieve... 
https://va2fsq.com/wp-content/uploads/2013-Jan-15-20-43-43.avi 73 Tom 
Sent from my Samsung Galaxy smartphone.
 Original message From: Dave Cole  Date: 
2017-06-21  12:04 AM  (GMT-05:00) To: elecraft@mailman.qth.net Subject: Re: 
[Elecraft] K3S Noise reduction Test 
Don,
Thanks for the info, but as John said, I was suggesting a noise 
canceling setup...  I was not clear enough, my error.

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 06/20/2017 06:39 PM, j...@kk9a.com wrote:
> But that is not what NK7Z is suggesting.  He suggested a built in noise
> canceller which would be awesome!
>
> John KK9A
>
> Don Wilhelm wrote
> Tue Jun 20 19:51:45 EDT 2017
>
> Dave,
>
> The K3S has a receive antenna connection so you can do exactly that.
> The low noise antenna is up to the operator to provide.
> If you have the KRX3 option installed, diversity reception may also help.
>
> 73,
> Don W3FPR
>
> On 6/20/2017 6:21 PM, Dave Cole wrote:
>> What would be really nice would be to have a separate antenna designed
>> for noise reception, and the ability to phase shift it from the normal
>> antenna, allowing for noise cancellation...
>
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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread Dave Cole


Don,
Thanks for the info, but as John said, I was suggesting a noise 
canceling setup...  I was not clear enough, my error.


73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 06/20/2017 06:39 PM, j...@kk9a.com wrote:

But that is not what NK7Z is suggesting.  He suggested a built in noise
canceller which would be awesome!

John KK9A

Don Wilhelm wrote
Tue Jun 20 19:51:45 EDT 2017

Dave,

The K3S has a receive antenna connection so you can do exactly that.
The low noise antenna is up to the operator to provide.
If you have the KRX3 option installed, diversity reception may also help.

73,
Don W3FPR

On 6/20/2017 6:21 PM, Dave Cole wrote:

What would be really nice would be to have a separate antenna designed
for noise reception, and the ability to phase shift it from the normal
antenna, allowing for noise cancellation...


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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread Dave Cole


Thank you John.  That is exactly what I was suggesting.

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 06/20/2017 06:39 PM, j...@kk9a.com wrote:

But that is not what NK7Z is suggesting.  He suggested a built in noise
canceller which would be awesome!

John KK9A

Don Wilhelm wrote
Tue Jun 20 19:51:45 EDT 2017

Dave,

The K3S has a receive antenna connection so you can do exactly that.
The low noise antenna is up to the operator to provide.
If you have the KRX3 option installed, diversity reception may also help.

73,
Don W3FPR

On 6/20/2017 6:21 PM, Dave Cole wrote:

What would be really nice would be to have a separate antenna designed
for noise reception, and the ability to phase shift it from the normal
antenna, allowing for noise cancellation...


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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread Robert Cunnings



Well, not exactly... the K3S doesn't have the ability to perform the 
phase shifting for noise cancellation.


However, the K3 has antenna OUT and IN jacks which allow the use of the 
NCC-1 (now NCC-2) from DX Engineering to perform the noise cancellation. 
I've been doing this for years and it works well. I posted the details on 
this list earlier:


http://www.mail-archive.com/elecraft@mailman.qth.net/msg177064.html

I need noise cancellation more and more as the RF environment in my 
neighborhood grows more hostile each year.


73, Bob NW8L

On Tue, 20 Jun 2017, Don Wilhelm wrote:


Dave,

The K3S has a receive antenna connection so you can do exactly that. The low 
noise antenna is up to the operator to provide.

If you have the KRX3 option installed, diversity reception may also help.

73,
Don W3FPR

On 6/20/2017 6:21 PM, Dave Cole wrote:
What would be really nice would be to have a separate antenna designed for 
noise reception, and the ability to phase shift it from the normal antenna, 
allowing for noise cancellation...



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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread Nr4c

But that knob varies a whole other range of NR. How hard is it to turn one knob 
32 clicks?

Sent from my iPhone
...nr4c. bill


> On Jun 20, 2017, at 2:51 PM, Drew AF2Z  wrote:
> 
> The only thing I would change in NR is to make it easier to scroll through 
> the settings. Currently you can only go through the 32 settings sequentially 
> with the VFO-B knob, from 1-1 through 8-4. It would be nice if the VFO-A knob 
> could be employed to increment and decrement the first parameter.
> 
> For example: if you were on NR 1-3 you could scroll directly through 2-3, 
> 3-3, 4-3, etc using the VFO-A knob.
> 
> I don't know the details of NR but believe that all the n-1 settings are 
> related to each other as a group; same goes for the n-2 settings, n-3, and 
> n-4. So, it would make sense to be able to scroll through the "n" values when 
> looking for the best noise reduction.
> 
> 73,
> Drew
> AF2Z
> 
> 
>> On 06/20/17 11:48, wa9fvp wrote:
>> I did a comprehensive test of the K3S noise reduction system and uploaded the
>> same document to the Elecraft_K3 Yahoo group.
>> Elecraft_K3_NoiseReduction.pdf
>> 
>> Here's what I concluded.
>> Settings Fn-1 provides the least noise reduction.  Fn-2 and Fn-3 noise
>> levels are almost the same and one setting could be eliminated.  Fn-4
>> provides the most noise reduction and having 3 settings, it would
>> simplifying NR adjustments.  The NR delays that is, F1-n through F4-n, could
>> be added to the configuration menu.  There are delay differences in the
>> noise ripple but aurally, with a complex voice waveform, there’s no
>> distinction between the delay settings.
>> Don't get me wrong! I'm not that saying there's something wrong with the
>> K3/K3S noise reduction. It works very well!  I think there are too many
>> settings and some can be eliminated.  What are your thoughts?
>> -
>> Jack WA9FVP
>> Sent from my home-brew I5 Core PC
>> --
>> View this message in context: 
>> http://elecraft.365791.n2.nabble.com/K3S-Noise-reduction-Test-tp7631913.html
>> Sent from the Elecraft mailing list archive at Nabble.com.
>> __
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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread brian

Had an ANC noise canceller like this. MFJ makes one too.  Same idea. 
Collins also had such a thing for their mobile way back when using a 
separate whip on the back of the vehicle.


They work well but only for one signal source at a time.  If you have 
two noise sources located differently, you can cancel only one.


There was also the nastiness of blowing up the inputs of these units 
when operating high power.  Some way of isolating the circuitry or 
protecting it from transmitted RF was needed.  The desire for QSK may 
make this a little difficult.


A conventional noise limiter would still be needed to handle the left 
over sources.


73 de Brian/K3KO



On 6/21/2017 1:39 AM, j...@kk9a.com wrote:

But that is not what NK7Z is suggesting.  He suggested a built in noise
canceller which would be awesome!

John KK9A

Don Wilhelm wrote
Tue Jun 20 19:51:45 EDT 2017

Dave,

The K3S has a receive antenna connection so you can do exactly that.
The low noise antenna is up to the operator to provide.
If you have the KRX3 option installed, diversity reception may also help.

73,
Don W3FPR

On 6/20/2017 6:21 PM, Dave Cole wrote:

What would be really nice would be to have a separate antenna designed
for noise reception, and the ability to phase shift it from the normal
antenna, allowing for noise cancellation...


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[Elecraft] K3S Noise reduction Test

2017-06-20 Thread john

But that is not what NK7Z is suggesting.  He suggested a built in noise
canceller which would be awesome! 

John KK9A

Don Wilhelm wrote
Tue Jun 20 19:51:45 EDT 2017

Dave,

The K3S has a receive antenna connection so you can do exactly that. 
The low noise antenna is up to the operator to provide.
If you have the KRX3 option installed, diversity reception may also help.

73,
Don W3FPR

On 6/20/2017 6:21 PM, Dave Cole wrote:
> What would be really nice would be to have a separate antenna designed 
> for noise reception, and the ability to phase shift it from the normal 
> antenna, allowing for noise cancellation...

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Re: [Elecraft] A VALUABLE FIELD DAY ACCESSORY

2017-06-20 Thread Christopher Hoover

I just ordered the Amp800's smaller cousin, Behringer Microamp Ha400
Ultra-Compact 4-Channel Stereo Headphone Amplifier
,
for exactly this purpose.


On Wed, Jun 21, 2017 at 4:55 AM, KENT TRIMBLE  wrote:

> Headphones and Field Day have been yoked since time immemorial.  The K3's
> ability to output its audio into both headphones and speakers
> simultaneously has been a boon to those FD sites that encourage visitors.
> It permits the operator/logger to use headphones while visitors can monitor
> the action through speakers.  The problem lies in the volume levels that
> each of the participants require (or don't require).  This is especially
> true when multiple transceivers are occupying the same tent/trailer/room,
> etc., and each have their own group of listeners.  Cacophony is not the
> goal here.
>
> As veteran Field-Day clubs have discovered over the years, a valuable
> accessory is a multi-outlet headphone-amplifier with individual volume
> controls for each headphone.  For several years we have used a Behringer
> Amp800 (https://www.amazon.com/Behringer-AMP800-Four-Channel-Headph
> one/dp/B000KU87SM) at our CW position.  Lately, we have also been using a
> Rolls HA43 (http://www.rolls.com/product.php?pid=HA43) which is smaller
> and easier to operate.  Neither are bothered by stray RF.
>
> I have no vested interest in either.  There are similar products under
> various brand-names.  The Behringer can be had for around $70 and the Rolls
> for $50 from numerous online vendors.  The Behringer only accepts 1/4-inch
> phono plugs while the Rolls has dual input jacks to accept both 1/4-inch
> phono and 1/8th-inch plugs.  This is another reason I like the Rolls as no
> "tweenies" (adapters) are needed.
>
> Uses might include . . .
>
> A neophyte with an unconnected laptop, wearing his own headphones,
> entering call signs/exchanges into a practice logging program without
> disturbing the main operator.  Or the next shift warming-up before assuming
> the operator's position.  Or someone merely wanting to seriously listen for
> a while without being bothered by the inevitable traipsing in-and-out of
> visitors, kibitzers, the lost, the lonely, the huddled masses yearning to
> be free.
>
> Both of the above units accommodate up to four headphones.
>
> 73,
>
> Kent Trimble, K9ZTV
> Mid-MO Amateur Radio Club
> Jefferson City, MO
>
>
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[Elecraft] Cooling on a KX2

2017-06-20 Thread John AE5X

Sounds like a great opportunity for an Elecraft-branded Stirling engine turning 
a small fan:

https://youtu.be/Qshc2yWKq2A

John AE5X
http://ae5x.blogspot.com/
 

 Usually the situation where people do 
> not use fans is when they are operating portable and don't want to 
> waste the power or have extra stuff to pack/set up

Police Urge Americans to Carry This With Them at All Times
The Observer
http://thirdpartyoffers.juno.com/TGL3131/5949c037661ea40372c42st04vuc
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Re: [Elecraft] A VALUABLE FIELD DAY ACCESSORY

2017-06-20 Thread Mark Petiford via Elecraft

RE:  "If you find one, let me know"

Walter,

There are portable aircraft intercoms available from aviation suppliers like 
Sporty's Pilot Shop, and possibly from Amazon, too.  They allow the passengers 
to talk to each other, and listen to the radio communications if they desire.   
The pilot can listen to only radio communications, or he can listen to the 
passenger chit-chat if he wants, with communications audio from the radio 
overriding that.  The pilot's mike goes to the radio for communications 
purposes if he pushes the PTT switch, or to the passengers chit-chat if he 
doesn't.

The biggest problem with these intercoms is that they are designed for carbon 
microphones and higher impedance headphones than we normally use.  I have seen 
circuits for converting stereo headphones and dynamic/electret microphones to 
work in aircraft, but not so much in the opposite direction.  That won't be a 
problem for the resourceful hams, but I suspect they won't work right out of 
the box.

Just a thought.

Mark
KE6BB
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[Elecraft] KX3 and KXPA100 Amp for Sale

2017-06-20 Thread Richard Nelson

For sale Elecraft KX3-F and KXPA100 Amplifier Combo plus accessories

  Inclued
KX3-FKX3 160-6m Transceiver, Factory Assembled Serial #9343
KX3RET-F KX3 Retainer PCB in KX3-F
KXBC3Internal NiMH Charger/Real Time-Clock
KXFL3-F  Dual-Passband Roofing Filter
KXPA100-AT-F 100w Ext Amp with 150w Antenna Tuner Factory Assembled
SS30DV   Sw Pwr Supply 14.1V, 25A
KXPACBL  KX3 to KXPA100 Integrated IO Cable
Kx32 Ultimate Elecraft™ KX3 heatsink
Elecraft KX3 Desk Stand by Nifty Accessories

Signalink USB with cables for the KX3 (No extra cost)

2512.00 Radio, 100w Amp and accessores
 100.00 Heatsink
  25.00 Nifty Stand
2637.00 New cost
2000.00 Will sell as a package deal only. You pay shipping of your choice.
Will be shipped in original boxes from the factory.
Payment by Cashiers check. Personal checks ok but will wait for check

to clear bank. Will not entertain trades.

I receive the radio 12 Dec 2016.
The radio and amp are still under warranty.

Richard Nelson
WH6S
808-651-4863
email w...@outlook.com

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Re: [Elecraft] KX3/KPA100 issue

2017-06-20 Thread Don Wilhelm


Thaire,

The basic KX3 does not have a 2nd antenna.  That is only possible with 
the KXPA100 with the KXAT100 ATU installed.


Check the KX3 menu to be certain that PA MODE is set to ON, and make 
certain you are doing a HOLD of the ANT button when attempting to switch 
antennas.  See page 24 of the KXPA100 manual.


73,
Don W3FPR


On 6/20/2017 8:09 PM, Thaire Bryant wrote:

Suddenly my KX3 will not switch between antenna 1 & 2 nor can I switch antennas on the 
KPA100.  Both are stuck on "Ant 1".  I rechecked settings in menu and reconnected 
the two and no change.  Any ideas?


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Re: [Elecraft] KX3/KPA100 issue

2017-06-20 Thread Dick Dievendorff

Could you have disabled ANT2 for the band you're on?

This is a KXPA100 Utility configuration choice.

Dick, K6KR


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Thaire Bryant
Sent: Tuesday, June 20, 2017 17:09
To: elecraft@mailman.qth.net
Subject: [Elecraft] KX3/KPA100 issue

Suddenly my KX3 will not switch between antenna 1 & 2 nor can I switch
antennas on the KPA100.  Both are stuck on "Ant 1".  I rechecked settings in
menu and reconnected the two and no change.  Any ideas?

Thanks,
Thaire. W2APF
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[Elecraft] KX3/KPA100 issue

2017-06-20 Thread Thaire Bryant

Suddenly my KX3 will not switch between antenna 1 & 2 nor can I switch antennas 
on the KPA100.  Both are stuck on "Ant 1".  I rechecked settings in menu and 
reconnected the two and no change.  Any ideas?

Thanks,
Thaire. W2APF
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Re: [Elecraft] A VALUABLE FIELD DAY ACCESSORY

2017-06-20 Thread Bob McGraw K4TAX

Just order you needs from Amazon today or tomorrow and have it by 
Friday.   I ordered my Koss SB 40 headset/mike on Friday and it was 
delivered Monday.  No expedited shipping either.


73

Bob, K4TAX


On 6/20/2017 6:05 PM, Clay Autery wrote:

Guessing there's a really good chance that we'll have one in 2018, too.
Just add the tip to your list for next year prep

Of course, you can likely get it to you from Amazon by Saturday...
Amazon Prime is awesome...

73,

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On 6/20/2017 4:31 PM, garyk9gs wrote:

All well and good..but FD is in 4 days.


73-Gary K9GS


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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread Don Wilhelm


Dave,

The K3S has a receive antenna connection so you can do exactly that. 
The low noise antenna is up to the operator to provide.

If you have the KRX3 option installed, diversity reception may also help.

73,
Don W3FPR

On 6/20/2017 6:21 PM, Dave Cole wrote:
What would be really nice would be to have a separate antenna designed 
for noise reception, and the ability to phase shift it from the normal 
antenna, allowing for noise cancellation...



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Re: [Elecraft] A VALUABLE FIELD DAY ACCESSORY

2017-06-20 Thread Joe Subich, W4TV



I believe there was a design for a device of that nature in a recent
(last 10 years) ARRL Handbook.  I don't have time to search the library
just now.

73,

   ... Joe, W4TV


On 6/20/2017 7:35 PM, Steve Sergeant wrote:

On 6/20/17 4:31 PM, Walter Underwood wrote:

If you find one, let me know. This could be useful for em-comm deployments.


On Jun 20, 2017, at 4:26 PM, Jack Brindle  wrote:
Does anyone make a distribution / intercom box that allows the two ops to talk 
between themselves without removing their headphones? One with a switch to 
select
one of the microphones to go to the rig might be an interesting box / project 
as well.


I designed a many-to-many audio router for the Behemoth [
http://www.computerhistory.org/revolution/mobile-computing/18/345/1703 ]
that would do what you're requesting. Alas I no longer have the design
files for the PC boards.
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Re: [Elecraft] A VALUABLE FIELD DAY ACCESSORY

2017-06-20 Thread Steve Sergeant

On 6/20/17 4:31 PM, Walter Underwood wrote:
> If you find one, let me know. This could be useful for em-comm deployments.
> 
>> On Jun 20, 2017, at 4:26 PM, Jack Brindle  wrote:
>> Does anyone make a distribution / intercom box that allows the two ops to 
>> talk between themselves without removing their headphones? One with a switch 
>> to select
>> one of the microphones to go to the rig might be an interesting box / 
>> project as well.

I designed a many-to-many audio router for the Behemoth [
http://www.computerhistory.org/revolution/mobile-computing/18/345/1703 ]
that would do what you're requesting. Alas I no longer have the design
files for the PC boards.
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Re: [Elecraft] A VALUABLE FIELD DAY ACCESSORY

2017-06-20 Thread Walter Underwood

If you find one, let me know. This could be useful for em-comm deployments.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jun 20, 2017, at 4:26 PM, Jack Brindle  wrote:
> 
> Actually, thanks. I have been looking for something like this for a while, 
> and since they are available locally, it might be a good trip on my way to 
> the FD site.
> 
> Does anyone make a distribution / intercom box that allows the two ops to 
> talk between themselves without removing their headphones? One with a switch 
> to select
> one of the microphones to go to the rig might be an interesting box / project 
> as well.
> 
> - Jack, W6FB
> 
> 
>> On Jun 20, 2017, at 2:44 PM, Raymond Sills  wrote:
>> 
>> Those types of headphone distribution amps can often be found at music 
>> stores, like Guitar Center, Sam Ash, etc.  They might also have some compact 
>> amps with speakers, too.
>> 
>> 
>> 73 de Ray
>> K2ULR
>> KX3 #211
>> 
>> 
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Re: [Elecraft] A VALUABLE FIELD DAY ACCESSORY

2017-06-20 Thread Jack Brindle

Actually, thanks. I have been looking for something like this for a while, and 
since they are available locally, it might be a good trip on my way to the FD 
site.

Does anyone make a distribution / intercom box that allows the two ops to talk 
between themselves without removing their headphones? One with a switch to 
select
one of the microphones to go to the rig might be an interesting box / project 
as well.

- Jack, W6FB

> On Jun 20, 2017, at 2:44 PM, Raymond Sills  wrote:
> 
> Those types of headphone distribution amps can often be found at music 
> stores, like Guitar Center, Sam Ash, etc.  They might also have some compact 
> amps with speakers, too.
> 
> 
> 73 de Ray
> K2ULR
> KX3 #211
> 
> 
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Re: [Elecraft] A VALUABLE FIELD DAY ACCESSORY

2017-06-20 Thread Clay Autery

Guessing there's a really good chance that we'll have one in 2018, too. 
Just add the tip to your list for next year prep

Of course, you can likely get it to you from Amazon by Saturday... 
Amazon Prime is awesome...

73,

__
Clay Autery, KY5G

On 6/20/2017 4:31 PM, garyk9gs wrote:
> All well and good..but FD is in 4 days.
>
>
> 73-Gary K9GS 
>

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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread GRANT YOUNGMAN

My reference to “complex waveforms” was the underlying noise waveform, not the 
signal of interest, which for this type of test would normally be a single tone.

> On Jun 20, 2017, at 4:34 PM, wa9fvp  wrote:
> 
> As I mentioned in my document 
> 
> “Human speech contains sinusoidal elements that the LMS algorithm adapts to 
> and creates a filter around the speech waveform.  The waveform constantly 
> changes and to conform to the human speech patterns, the LMS filter must 
> continuously change the filter’s shape.  Under these conditions, it is too 
> difficult to characterize the K3/K3S NR adjustments.  
> 
> That’s why I used a single tone test.
> 
> 

Grant NQ5T
K3 #2091, KX3 #8342



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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread Dave Cole

What would be really nice would be to have a separate antenna designed 
for noise reception, and the ability to phase shift it from the normal 
antenna, allowing for noise cancellation...


73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 06/20/2017 11:53 AM, wa9fvp wrote:

Believe it not, the idea of adding NR delay is not new.  Back in 91, when I
did the testing for the Hamblaster, we were experimenting with NR delays.
Even with the Hamblaster the delay function made very little difference.   I
only settled on two delay settings.  All of the others, there were about 50,
yield no change in the aural bandwidth.  The NR reduction level had the
greatest impact.

I used the DSP Noise Blanker setting on several occasions and found it more
affective on low level electrical noise.  The NR setting or the conventional
NB wasn't as affective.



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Re: [Elecraft] A VALUABLE FIELD DAY ACCESSORY

2017-06-20 Thread Raymond Sills

Those types of headphone distribution amps can often be found at music stores, 
like Guitar Center, Sam Ash, etc.  They might also have some compact amps with 
speakers, too.


73 de Ray
K2ULR
KX3 #211


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Re: [Elecraft] A VALUABLE FIELD DAY ACCESSORY

2017-06-20 Thread Walter Underwood

Your post talks about how handy it is to drive speakers and headphones. The K3 
can do that, but not all radios can. If you want speakers and headphones, you 
need more than a headphone distribution amp.

I wasn’t criticizing, just trying to help. The little DROK amp is quite handy.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jun 20, 2017, at 2:18 PM, KENT TRIMBLE  wrote:
> 
> Walter . . .
> 
> That's why it's called a "headphone amplifier."
> 
> Kent
> 
> 
> 
> On 6/20/2017 4:10 PM, Walter Underwood wrote:
>> The Behringer can’t drive speakers
> 

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Re: [Elecraft] A VALUABLE FIELD DAY ACCESSORY

2017-06-20 Thread garyk9gs

All well and good..but FD is in 4 days.


73-Gary K9GS 
 Original message From: KENT TRIMBLE  Date: 
6/20/17  3:55 PM  (GMT-06:00) To: Elecraft  Subject: 
[Elecraft] A VALUABLE FIELD DAY ACCESSORY 
Headphones and Field Day have been yoked since time immemorial.  The 
K3's ability to output its audio into both headphones and speakers 
simultaneously has been a boon to those FD sites that encourage 
visitors.  It permits the operator/logger to use headphones while 
visitors can monitor the action through speakers.  The problem lies in 
the volume levels that each of the participants require (or don't 
require).  This is especially true when multiple transceivers are 
occupying the same tent/trailer/room, etc., and each have their own 
group of listeners.  Cacophony is not the goal here.

As veteran Field-Day clubs have discovered over the years, a valuable 
accessory is a multi-outlet headphone-amplifier with individual volume 
controls for each headphone.  For several years we have used a Behringer 
Amp800 
(https://www.amazon.com/Behringer-AMP800-Four-Channel-Headphone/dp/B000KU87SM) 
at our CW position.  Lately, we have also been using a Rolls HA43 
(http://www.rolls.com/product.php?pid=HA43) which is smaller and easier 
to operate.  Neither are bothered by stray RF.

I have no vested interest in either.  There are similar products under 
various brand-names.  The Behringer can be had for around $70 and the 
Rolls for $50 from numerous online vendors.  The Behringer only accepts 
1/4-inch phono plugs while the Rolls has dual input jacks to accept both 
1/4-inch phono and 1/8th-inch plugs.  This is another reason I like the 
Rolls as no "tweenies" (adapters) are needed.

Uses might include . . .

A neophyte with an unconnected laptop, wearing his own headphones, 
entering call signs/exchanges into a practice logging program without 
disturbing the main operator.  Or the next shift warming-up before 
assuming the operator's position.  Or someone merely wanting to 
seriously listen for a while without being bothered by the inevitable 
traipsing in-and-out of visitors, kibitzers, the lost, the lonely, the 
huddled masses yearning to be free.

Both of the above units accommodate up to four headphones.

73,

Kent Trimble, K9ZTV
Mid-MO Amateur Radio Club
Jefferson City, MO


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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread Drew AF2Z

Even if we have to slog through all the NR settings sequentially I'd 
still prefer to keep them all, no matter how similar they appear on the 
scope. Having used the K3 for a number of years I have at times noticed 
an audible difference between them when copying weak CW signals. Can't 
really characterize it further than that, but they do make a difference.


73,
Drew
AF2Z


On 06/20/17 15:13, wa9fvp wrote:

If you look at my data, there’s very little noise level difference in the delay 
settings. The level or aggressiveness is what reduces the noise. Having two 
knobs to change the parameters is also a good idea.  I would prefer a finer 
adjustment in the level settings like 0 to 10
For people, like me, that like to tinker, the delays can be on a separate knob 
or in the configure menus.  For normal operation or during a contest, I find it 
too cumbersome to dial through all of the settings to find the best one.
  



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Re: [Elecraft] A VALUABLE FIELD DAY ACCESSORY

2017-06-20 Thread KENT TRIMBLE


Walter . . .

That's why it's called a "headphone amplifier."

Kent



On 6/20/2017 4:10 PM, Walter Underwood wrote:

The Behringer can’t drive speakers


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Re: [Elecraft] A VALUABLE FIELD DAY ACCESSORY

2017-06-20 Thread Walter Underwood

The Behringer can’t drive speakers, it wants at least 47 Ohms and puts out 124 
mW per channel. If you want to power speakers, I recommend the $10 amp I use, 
it is 15 W per channel and runs from 12 V. The price varies, it is $8.50 today.

https://smile.amazon.com/DROK-Component-Amplifier-TDA7297-15W/dp/B00C4MT274/ 


I use it with my KX3. I have a simple splitter cable so the KX3 feeds my 
headphones and this amp.

https://observer.wunderwood.org/2017/03/04/speakers-for-my-elecraft-kx3/ 


Also, the Behringer HA400 is a 4-way headphone distribution amp for $25. 
Basically some op amps, volume controls, and jacks in a box. Other companies 
make pretty much the same thing for the same price.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jun 20, 2017, at 1:55 PM, KENT TRIMBLE  wrote:
> 
> Headphones and Field Day have been yoked since time immemorial.  The K3's 
> ability to output its audio into both headphones and speakers simultaneously 
> has been a boon to those FD sites that encourage visitors.  It permits the 
> operator/logger to use headphones while visitors can monitor the action 
> through speakers.  The problem lies in the volume levels that each of the 
> participants require (or don't require).  This is especially true when 
> multiple transceivers are occupying the same tent/trailer/room, etc., and 
> each have their own group of listeners.  Cacophony is not the goal here.
> 
> As veteran Field-Day clubs have discovered over the years, a valuable 
> accessory is a multi-outlet headphone-amplifier with individual volume 
> controls for each headphone.  For several years we have used a Behringer 
> Amp800 
> (https://www.amazon.com/Behringer-AMP800-Four-Channel-Headphone/dp/B000KU87SM)
>  at our CW position.  Lately, we have also been using a Rolls HA43 
> (http://www.rolls.com/product.php?pid=HA43) which is smaller and easier to 
> operate.  Neither are bothered by stray RF.
> 
> I have no vested interest in either.  There are similar products under 
> various brand-names.  The Behringer can be had for around $70 and the Rolls 
> for $50 from numerous online vendors.  The Behringer only accepts 1/4-inch 
> phono plugs while the Rolls has dual input jacks to accept both 1/4-inch 
> phono and 1/8th-inch plugs.  This is another reason I like the Rolls as no 
> "tweenies" (adapters) are needed.
> 
> Uses might include . . .
> 
> A neophyte with an unconnected laptop, wearing his own headphones, entering 
> call signs/exchanges into a practice logging program without disturbing the 
> main operator.  Or the next shift warming-up before assuming the operator's 
> position.  Or someone merely wanting to seriously listen for a while without 
> being bothered by the inevitable traipsing in-and-out of visitors, kibitzers, 
> the lost, the lonely, the huddled masses yearning to be free.
> 
> Both of the above units accommodate up to four headphones.
> 
> 73,
> 
> Kent Trimble, K9ZTV
> Mid-MO Amateur Radio Club
> Jefferson City, MO
> 
> 
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[Elecraft] A VALUABLE FIELD DAY ACCESSORY

2017-06-20 Thread KENT TRIMBLE

Headphones and Field Day have been yoked since time immemorial.  The 
K3's ability to output its audio into both headphones and speakers 
simultaneously has been a boon to those FD sites that encourage 
visitors.  It permits the operator/logger to use headphones while 
visitors can monitor the action through speakers.  The problem lies in 
the volume levels that each of the participants require (or don't 
require).  This is especially true when multiple transceivers are 
occupying the same tent/trailer/room, etc., and each have their own 
group of listeners.  Cacophony is not the goal here.


As veteran Field-Day clubs have discovered over the years, a valuable 
accessory is a multi-outlet headphone-amplifier with individual volume 
controls for each headphone.  For several years we have used a Behringer 
Amp800 
(https://www.amazon.com/Behringer-AMP800-Four-Channel-Headphone/dp/B000KU87SM) 
at our CW position.  Lately, we have also been using a Rolls HA43 
(http://www.rolls.com/product.php?pid=HA43) which is smaller and easier 
to operate.  Neither are bothered by stray RF.


I have no vested interest in either.  There are similar products under 
various brand-names.  The Behringer can be had for around $70 and the 
Rolls for $50 from numerous online vendors.  The Behringer only accepts 
1/4-inch phono plugs while the Rolls has dual input jacks to accept both 
1/4-inch phono and 1/8th-inch plugs.  This is another reason I like the 
Rolls as no "tweenies" (adapters) are needed.


Uses might include . . .

A neophyte with an unconnected laptop, wearing his own headphones, 
entering call signs/exchanges into a practice logging program without 
disturbing the main operator.  Or the next shift warming-up before 
assuming the operator's position.  Or someone merely wanting to 
seriously listen for a while without being bothered by the inevitable 
traipsing in-and-out of visitors, kibitzers, the lost, the lonely, the 
huddled masses yearning to be free.


Both of the above units accommodate up to four headphones.

73,

Kent Trimble, K9ZTV
Mid-MO Amateur Radio Club
Jefferson City, MO


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Re: [Elecraft] Cooling on a KX2

2017-06-20 Thread Fred Jensen

FWIW: To run RTTY with my K2/100, I mounted a computer muffin fan with a 
velcro tab to the heat sink over the PA's, blowing down. Heat sink 
stayed cool to the touch at 80 W.  Without the fan, it was too hot to 
rest your hand on it.  Understandable however that unless the fan is an 
integral part of the heat sink, a mfr can't really include these effects 
in their product specs.


73,

Fred ("Skip") K6DGW
Sparks NV USA
Washoe County DM09dn

On 6/20/2017 11:01 AM, Howard Hoyt wrote:

Hi Mike!,

You are of course correct, and there is no reason not to do so when 
operating fixed near AC power.  Usually the situation where people do 
not use fans is when they are operating portable and don't want to 
waste the power or have extra stuff to pack/set up. This is the reason 
our heatsinks are optimized for convective cooling, but they can show 
extreme cooling gains when using forced cooling.


The reason we do not rate them with forced cooling is because the air 
temperature and speed are uncontrolled variables unlikely to be 
duplicated by users, whereas rating them for full convective cooling 
is much more conservative.


Cheers & 73,

Howie - WA4PSC
www.proaudioeng.com


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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread wa9fvp

As I mentioned in my document 

“Human speech contains sinusoidal elements that the LMS algorithm adapts to and 
creates a filter around the speech waveform.  The waveform constantly changes 
and to conform to the human speech patterns, the LMS filter must continuously 
change the filter’s shape.  Under these conditions, it is too difficult to 
characterize the K3/K3S NR adjustments.  

That’s why I used a single tone test.

Human speech contains sinusoidal along with non-sinusoidal elements.  TH, S and 
W are a few non-sinusoidal elements and are more analogous to white and pink 
noise.  By attacking these elements, an aggressive NR reduction scheme can 
rendered speech unintelligible.  Other languages have an abundance 
non-sinusoidal speech and the question is, how will a NR scheme treat it?  In 
the telecom engineering lab where I worked, to test eco-cancelers, we actually 
used recordings of other languages.  Using tools that I have at my disposal, my 
test was to simply characterize the K3/K3S NR system.  

Noise reduction is magic but the bottom line is, how much does it reduce noise 
and is it so aggressive that is makes human speech un-intelligible?  The most 
difficult part is to find the correct parameters that can satisfy both 
conditions.  

-- 

Jack WA9FVP- http://www.willcoele.com/radio_repair  

The Radio Reclamation Center (815) 463-9365

From: Grant Youngman-2 [via Elecraft] 
[mailto:ml+s365791n7631926...@n2.nabble.com] 
Sent: Tuesday, June 20, 2017 2:46 PM
To: wa9fvp 
Subject: Re: K3S Noise reduction Test

You might want to look at actual (S+N)/N data.  I’m not sure the visual “test”  
tells the full story, since these are complex waveforms. 

I did extensive measurement several years ago on the NR functions of the v1 and 
v2 firmware versions of the TenTec Orion (for some reason, noise reduction not 
being “magic” surfaces everywhere as a contentious issue), and the measured 
data did not always match what things ”looked like”.   Not saying they don’t 
here, but it’s improvement in (S+N)/N that’s the end objective of NR regardless 
of what the screen shot looks like. 

SpectrumLab can measure this directly.  http://www.qsl.net/dl4yhf/spectra1.html

> On Jun 20, 2017, at 3:13 PM, wa9fvp <[hidden email]> wrote: 
> 
> If you look at my data, there’s very little noise level difference in the 
> delay settings. 

Grant NQ5T 
K3 #2091, KX3 #8342 

-
Jack WA9FVP

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[Elecraft] Cooling on a KX2

2017-06-20 Thread Howard Hoyt


Hi Mike!,

You are of course correct, and there is no reason not to do so when 
operating fixed near AC power.  Usually the situation where people do 
not use fans is when they are operating portable and don't want to waste 
the power or have extra stuff to pack/set up.  This is the reason our 
heatsinks are optimized for convective cooling, but they can show 
extreme cooling gains when using forced cooling.


The reason we do not rate them with forced cooling is because the air 
temperature and speed are uncontrolled variables unlikely to be 
duplicated by users, whereas rating them for full convective cooling is 
much more conservative.


Cheers & 73,

Howie - WA4PSC
www.proaudioeng.com
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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread GRANT YOUNGMAN

You might want to look at actual (S+N)/N data.  I’m not sure the visual “test”  
tells the full story, since these are complex waveforms. 

I did extensive measurement several years ago on the NR functions of the v1 and 
v2 firmware versions of the TenTec Orion (for some reason, noise reduction not 
being “magic” surfaces everywhere as a contentious issue), and the measured 
data did not always match what things ”looked like”.   Not saying they don’t 
here, but it’s improvement in (S+N)/N that’s the end objective of NR regardless 
of what the screen shot looks like.

SpectrumLab can measure this directly.  http://www.qsl.net/dl4yhf/spectra1.html

> On Jun 20, 2017, at 3:13 PM, wa9fvp  wrote:
> 
> If you look at my data, there’s very little noise level difference in the 
> delay settings. 

Grant NQ5T
K3 #2091, KX3 #8342

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Re: [Elecraft] OT - DX Cluster Programs

2017-06-20 Thread Cady, Fred

You can also filter the spots in DXMAPS www.dxmaps.com.

Fred KE7X




From: elecraft-boun...@mailman.qth.net  on 
behalf of Clay Autery 
Sent: Tuesday, June 20, 2017 10:59 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] OT - DX Cluster Programs

Feed HRD Logbook with CC User read the docs and then set up the
filters with whatever level of granularity you require.

__
Clay Autery, KY5G

On 6/20/2017 9:19 AM, Roger D Johnson wrote:
> I've just gotten interested in 6 meters but only CW and SSB. Is there
> any cluster
> software that lets you filter out the digital spots on 50,276?
>
> Thanks, Roger
>
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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread wa9fvp

If you look at my data, there’s very little noise level difference in the delay 
settings. The level or aggressiveness is what reduces the noise. Having two 
knobs to change the parameters is also a good idea.  I would prefer a finer 
adjustment in the level settings like 0 to 10
For people, like me, that like to tinker, the delays can be on a separate knob 
or in the configure menus.  For normal operation or during a contest, I find it 
too cumbersome to dial through all of the settings to find the best one.
 
-- 

Jack WA9FVP- http://www.willcoele.com/radio_repair  
 

The Radio Reclamation Center (815) 463-9365
 
From: Drew AF2Z [via Elecraft] [mailto:ml+s365791n7631921...@n2.nabble.com] 
Sent: Tuesday, June 20, 2017 1:54 PM
To: wa9fvp 
Subject: Re: K3S Noise reduction Test
 
The only thing I would change in NR is to make it easier to scroll 
through the settings. Currently you can only go through the 32 settings 
sequentially with the VFO-B knob, from 1-1 through 8-4. It would be nice 
if the VFO-A knob could be employed to increment and decrement the first 
parameter. 

For example: if you were on NR 1-3 you could scroll directly through 
2-3, 3-3, 4-3, etc using the VFO-A knob. 

I don't know the details of NR but believe that all the n-1 settings are 
related to each other as a group; same goes for the n-2 settings, n-3, 
and n-4. So, it would make sense to be able to scroll through the "n" 
values when looking for the best noise reduction. 

73, 
Drew 
AF2Z 






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Jack WA9FVP

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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread wa9fvp

The K3/K3S Noise Reduction is disabled for FM and Data modes.

-- 

Jack WA9FVP- http://www.willcoele.com/radio_repair

The Radio Reclamation Center (815) 463-9365

From: Jim Brown-10 [via Elecraft]
[mailto:ml+s365791n7631918...@n2.nabble.com] 
Sent: Tuesday, June 20, 2017 12:22 PM
To: wa9fvp 
Subject: Re: K3S Noise reduction Test

On Tue,6/20/2017 10:09 AM, Dave Cole wrote: 
> It works very well!  I think there are too many 
> settings and some can be eliminated.  What are your thoughts? 

Elecraft's NB and NR systems are designed so that they can be optimized 
for a wide variety of noise, and a wide variety of operating modes -- 
CW, SSB, AM, FM, and a dozen different digital modes. What's optimum for 
you may not be optimum for others with DIFFERENT sorts of noise and 
different modes. Like with shoes (and earphones), one size does not fit 
all. 

The logical response of a user is to do what you did -- try all the 
settings and find those that work best for your noise and operating 
conditions. 

73, Jim K9YC 

-
Jack WA9FVP

Sent from my home-brew I5 Core PC
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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread wa9fvp

Believe it not, the idea of adding NR delay is not new.  Back in 91, when I
did the testing for the Hamblaster, we were experimenting with NR delays.
Even with the Hamblaster the delay function made very little difference.   I
only settled on two delay settings.  All of the others, there were about 50,
yield no change in the aural bandwidth.  The NR reduction level had the
greatest impact.
 
I used the DSP Noise Blanker setting on several occasions and found it more
affective on low level electrical noise.  The NR setting or the conventional
NB wasn't as affective. 
 
-- 

Jack WA9FVP- http://www.willcoele.com/radio_repair
 

The Radio Reclamation Center (815) 463-9365
 
From: Nicklas Johnson [via Elecraft]
[mailto:ml+s365791n763191...@n2.nabble.com] 
Sent: Tuesday, June 20, 2017 12:30 PM
To: wa9fvp 
Subject: Re: K3S Noise reduction Test
 
Correct me if I'm wrong, but is it not the case that the NR on the K3 isn't 
just a case of "more" as you change settings, but also a case of changing 
the _type_ (or strategy) of NR?  Or am I thinking of NB? 

   Nick 

On 20 June 2017 at 10:20, Jim Brown <[hidden email]> wrote: 

> On Tue,6/20/2017 10:09 AM, Dave Cole wrote: 
> 
>> It works very well!  I think there are too many 
>> settings and some can be eliminated.  What are your thoughts? 
>> 
> 
> Elecraft's NB and NR systems are designed so that they can be optimized 
> for a wide variety of noise, and a wide variety of operating modes -- CW, 
> SSB, AM, FM, and a dozen different digital modes. What's optimum for you 
> may not be optimum for others with DIFFERENT sorts of noise and different 
> modes. Like with shoes (and earphones), one size does not fit all. 
> 
> The logical response of a user is to do what you did -- try all the 
> settings and find those that work best for your noise and operating 
> conditions. 
> 
> 73, Jim K9YC 
> 
> 
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> 



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real. And if you have to lie to support a position, that position is not 
worth supporting. 
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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread Drew AF2Z

The only thing I would change in NR is to make it easier to scroll 
through the settings. Currently you can only go through the 32 settings 
sequentially with the VFO-B knob, from 1-1 through 8-4. It would be nice 
if the VFO-A knob could be employed to increment and decrement the first 
parameter.


For example: if you were on NR 1-3 you could scroll directly through 
2-3, 3-3, 4-3, etc using the VFO-A knob.


I don't know the details of NR but believe that all the n-1 settings are 
related to each other as a group; same goes for the n-2 settings, n-3, 
and n-4. So, it would make sense to be able to scroll through the "n" 
values when looking for the best noise reduction.


73,
Drew
AF2Z


On 06/20/17 11:48, wa9fvp wrote:

I did a comprehensive test of the K3S noise reduction system and uploaded the
same document to the Elecraft_K3 Yahoo group.


Elecraft_K3_NoiseReduction.pdf


Here's what I concluded.

Settings Fn-1 provides the least noise reduction.  Fn-2 and Fn-3 noise
levels are almost the same and one setting could be eliminated.  Fn-4
provides the most noise reduction and having 3 settings, it would
simplifying NR adjustments.  The NR delays that is, F1-n through F4-n, could
be added to the configuration menu.  There are delay differences in the
noise ripple but aurally, with a complex voice waveform, there’s no
distinction between the delay settings.


Don't get me wrong! I'm not that saying there's something wrong with the
K3/K3S noise reduction. It works very well!  I think there are too many
settings and some can be eliminated.  What are your thoughts?



-
Jack WA9FVP

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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread wa9fvp

Back in the early 90’s I worked with another engineer on a QST inspired project 
called “The Hamblaster”.  It was a DSP based sound card that did, noise 
reduction.  I should probably say “done there, did that”.   To test the 
Hamblaster noise reduction, I did a similar test at the audio level except I 
used a pseudorandom noise generator and an audio oscillator.   On January and 
October of 1992, I wrote articles in QEX magazine “A Birth of a New DSP Board” 
and “Developing Software for DSP”.
 
-- 

Jack WA9FVP- http://www.willcoele.com/radio_repair  
 

The Radio Reclamation Center (815) 463-9365
 
From: Clay Autery [via Elecraft] [mailto:ml+s365791n7631916...@n2.nabble.com] 
Sent: Tuesday, June 20, 2017 12:07 PM
To: wa9fvp 
Subject: Re: K3S Noise reduction Test
 
To what productive/beneficial end? 

__ 
Clay Autery, KY5G 






-
Jack WA9FVP

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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread Nicklas Johnson

Correct me if I'm wrong, but is it not the case that the NR on the K3 isn't
just a case of "more" as you change settings, but also a case of changing
the _type_ (or strategy) of NR?  Or am I thinking of NB?

   Nick

On 20 June 2017 at 10:20, Jim Brown  wrote:

> On Tue,6/20/2017 10:09 AM, Dave Cole wrote:
>
>> It works very well!  I think there are too many
>> settings and some can be eliminated.  What are your thoughts?
>>
>
> Elecraft's NB and NR systems are designed so that they can be optimized
> for a wide variety of noise, and a wide variety of operating modes -- CW,
> SSB, AM, FM, and a dozen different digital modes. What's optimum for you
> may not be optimum for others with DIFFERENT sorts of noise and different
> modes. Like with shoes (and earphones), one size does not fit all.
>
> The logical response of a user is to do what you did -- try all the
> settings and find those that work best for your noise and operating
> conditions.
>
> 73, Jim K9YC
>
>
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>



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real. And if you have to lie to support a position, that position is not
worth supporting.
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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread Jim Brown


On Tue,6/20/2017 10:09 AM, Dave Cole wrote:

It works very well!  I think there are too many
settings and some can be eliminated.  What are your thoughts? 


Elecraft's NB and NR systems are designed so that they can be optimized 
for a wide variety of noise, and a wide variety of operating modes -- 
CW, SSB, AM, FM, and a dozen different digital modes. What's optimum for 
you may not be optimum for others with DIFFERENT sorts of noise and 
different modes. Like with shoes (and earphones), one size does not fit 
all.


The logical response of a user is to do what you did -- try all the 
settings and find those that work best for your noise and operating 
conditions.


73, Jim K9YC

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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread Dave Cole


Thanks for sharing!

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 06/20/2017 08:48 AM, wa9fvp wrote:

I did a comprehensive test of the K3S noise reduction system and uploaded the
same document to the Elecraft_K3 Yahoo group.


Elecraft_K3_NoiseReduction.pdf


Here's what I concluded.

Settings Fn-1 provides the least noise reduction.  Fn-2 and Fn-3 noise
levels are almost the same and one setting could be eliminated.  Fn-4
provides the most noise reduction and having 3 settings, it would
simplifying NR adjustments.  The NR delays that is, F1-n through F4-n, could
be added to the configuration menu.  There are delay differences in the
noise ripple but aurally, with a complex voice waveform, there’s no
distinction between the delay settings.


Don't get me wrong! I'm not that saying there's something wrong with the
K3/K3S noise reduction. It works very well!  I think there are too many
settings and some can be eliminated.  What are your thoughts?



-
Jack WA9FVP

Sent from my home-brew I5 Core PC
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Re: [Elecraft] K3S Noise reduction Test

2017-06-20 Thread Clay Autery

To what productive/beneficial end?

__
Clay Autery, KY5G

On 6/20/2017 10:48 AM, wa9fvp wrote:
> I did a comprehensive test of the K3S noise reduction system and uploaded the
> same document to the Elecraft_K3 Yahoo group. 
>
>
> Elecraft_K3_NoiseReduction.pdf
> 
>   
>
> Here's what I concluded.
>
> Settings Fn-1 provides the least noise reduction.  Fn-2 and Fn-3 noise
> levels are almost the same and one setting could be eliminated.  Fn-4
> provides the most noise reduction and having 3 settings, it would
> simplifying NR adjustments.  The NR delays that is, F1-n through F4-n, could
> be added to the configuration menu.  There are delay differences in the
> noise ripple but aurally, with a complex voice waveform, there’s no
> distinction between the delay settings.
>
>
> Don't get me wrong! I'm not that saying there's something wrong with the
> K3/K3S noise reduction. It works very well!  I think there are too many
> settings and some can be eliminated.  What are your thoughts?
>
>
>
> -
> Jack WA9FVP
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Re: [Elecraft] OT - DX Cluster Programs

2017-06-20 Thread Clay Autery

TRULY awesome software  I wish someone/group would step in to
re-ignite its development.

Hope to never have to NOT have CC User...

__
Clay Autery, KY5G

On 6/20/2017 9:26 AM, W0MU Mike Fatchett wrote:
> CC user by VE7CC allows you to filter just about everything.  It is free.
>
> http://www.bcdxc.org/ve7cc/
>
> W0MU
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Re: [Elecraft] OT - DX Cluster Programs

2017-06-20 Thread Clay Autery

Feed HRD Logbook with CC User read the docs and then set up the
filters with whatever level of granularity you require.

__
Clay Autery, KY5G

On 6/20/2017 9:19 AM, Roger D Johnson wrote:
> I've just gotten interested in 6 meters but only CW and SSB. Is there
> any cluster
> software that lets you filter out the digital spots on 50,276?
>
> Thanks, Roger
>
> __
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> Please help support this email list: http://www.qsl.net/donate.html
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[Elecraft] K3S Noise reduction Test

2017-06-20 Thread wa9fvp

I did a comprehensive test of the K3S noise reduction system and uploaded the
same document to the Elecraft_K3 Yahoo group. 


Elecraft_K3_NoiseReduction.pdf

  

Here's what I concluded.

Settings Fn-1 provides the least noise reduction.  Fn-2 and Fn-3 noise
levels are almost the same and one setting could be eliminated.  Fn-4
provides the most noise reduction and having 3 settings, it would
simplifying NR adjustments.  The NR delays that is, F1-n through F4-n, could
be added to the configuration menu.  There are delay differences in the
noise ripple but aurally, with a complex voice waveform, there’s no
distinction between the delay settings.


Don't get me wrong! I'm not that saying there's something wrong with the
K3/K3S noise reduction. It works very well!  I think there are too many
settings and some can be eliminated.  What are your thoughts?



-
Jack WA9FVP

Sent from my home-brew I5 Core PC
--
View this message in context: 
http://elecraft.365791.n2.nabble.com/K3S-Noise-reduction-Test-tp7631913.html
Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] P3 upgrade to provide display transmit information?

2017-06-20 Thread Robert Sands

After looking at the new station monitors by w8LP I thought I would ask if the 
P3 might be tweaked to provide transmit quality information via a display. Not 
sure how far it can go within its hardware envelope of capability. Perhaps 
there is a software update that will provide some of what I am requesting.
Bob
K7VO

Sent from Mail for Windows 10



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Re: [Elecraft] OT - DX Cluster Programs

2017-06-20 Thread W0MU Mike Fatchett


CC user by VE7CC allows you to filter just about everything.  It is free.

http://www.bcdxc.org/ve7cc/

W0MU


On 6/20/2017 8:19 AM, Roger D Johnson wrote:
I've just gotten interested in 6 meters but only CW and SSB. Is there 
any cluster

software that lets you filter out the digital spots on 50,276?

Thanks, Roger

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[Elecraft] OT - DX Cluster Programs

2017-06-20 Thread Roger D Johnson


I've just gotten interested in 6 meters but only CW and SSB. Is there any 
cluster
software that lets you filter out the digital spots on 50,276?

Thanks, Roger

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[Elecraft] a real expedition... some radio

2017-06-20 Thread bill steffey

Taking the kx2 to norway for an expedition to  shetland is, orkney 
is, faroe is, and iceland  22nd to JUL 4


will have whips for portable, and wires and a kxpa100 for the main mast...
18mhz will probably where most success as previous traveling ham 
advised there is s7 'boat' noise on 20 /40, I hope to find a more 
optimum antenna placement,.


I'll be that weak signal on 18mHz. ' vacation operating style'

bill /3

 


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