[Elecraft] Win4K3Suite mic interface question

[Terry Brown]

I just purchased Win4K3Suite for my KX3.  I would like to setup the spectrum
scope, but until I can get my main pc out of storage as we wait for our new
house to be completed, I am stuck with a Lenovo Thinkpad that has a
combination headphone microphone plug jack.  I understand that I need a
separate stereo usb sound interface that I can connect my RX/IQ port on the
KX3 to the laptop computer's mic input.

 

I would appreciate any suggestions that would help me get the correct usb
interface.

 

Thanks,

 

Terry de N7TB

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Re: [Elecraft] P3 SVGA interference -

[donovanf]

Does the RFI go away if you remove the antenna connection to your radio? 


Does it vary when you rotate your antenna? 

73 
Frank 
W3LPL 

- Original Message -

From: "mjpilgrim"  
To: elecraft@mailman.qth.net 
Sent: Sunday, February 11, 2018 12:04:49 AM 
Subject: Re: [Elecraft] P3 SVGA interference - 

I have the P3 attached to a HP 23" flat screen. I power off the external 
monitor and still have the issue on the P3 internal monitor. I power off 
the monitor on two PCs in the room and power off the flat screen TV in the 
room. Still no relief. 

I removed and reconnected all connections on the back of the P3, then 
removed the top cover so I could attempt to change the symptoms by touching 
and/or moving the ribbon cable and connectors. No change. 

I have snapped a couple pics, so will attempt later to share those if 
possible. Thanks for your replies. 
Mike, K5MP 



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[Elecraft] P3: Feature request

[Dave Cole (NK7Z)]

Hi there Elecraft programmers,

Feature request here...

Would it be possible to add a user controllable switch in the P3 setup 
for the Transmit monitor, which allows the numeric SWR and POWER reading 
to be held, as opposed to being removed at termination of transmit?


Thanks for considering

--
73s and thanks,
Dave
NK7Z
https://www.nk7z.net
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[Elecraft] Elecraft CW Net Announcement

[kevinr]

Good Evening,

   “What’s that?!”, my visual cortex rapidly scanned its card catalog 
seeking a best fit solution.  Another part of my brain was trying to 
decide flight or fight while further processing power was devoted to 
wondering why there was a bush where none had been before.  Then the 
bush’s tail flicked and a black tailed deer resolved the confusion.  In 
her winter coloration she was popping in and out of focus with the 
background.  Since I had made no sound she kept munching the leaves of 
the low lying bramble.   Brambles are a nasty vine covered with fine 
spines which always trip me if I am not walking like there is a foot of 
snow on the ground.   If you aren’t wearing leather gloves those spines 
sink into your skin and irritate for a week.   She was efficiently 
nipping the leaves off from along its length without noticing them.  I 
would not have put my snout nearly as close to the spiny stem.  She ate 
only a few feet from me for about fifteen minutes while I sat at my 
computer reading the morning news.


   The sun is active.  There are a few rapidly growing spots and the 
solar flux has risen to 78.   There may be propagation available for us 
to use.   Woo hoo! It has been a while.  Now to test this hypothesis.


Please join us tomorrow on:

14050 kHz at 2300z Sunday (3 PM PST Sunday)
  7045 kHz at 0100z Monday (5 PM PST Sunday)

73,
Kevin. KD5ONS

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Re: [Elecraft] KPA1500 ATU - ability to handle more than two antennas

[Dan AE9K]

Wayne,

Thanks for the response.  I waited to respond until the KPA1500 manual was
published to see if there were any PF1/PF2 functions out of the box.  What
I'd like to see first is much less fancy than interacting with external
relay-based antenna switching like you mentioned.  How about initially
providing a second set of ATU segment memories to allow a /manual/ external
switch?  The amp can't know or control which antenna is selected but it
would be very handy to have a PF function key the operator could use to
toggle between ATU segment set one and two, for example, when the manual
antenna switch position is changed.

I envision it like this:

ANT1
  \
  Manual Switch
 \--:  Antenna 1  (Manually select ATU logical segment set 1 with PF1
tap)
 \--:  Antenna 2  (Manually select ATU logical segment set 2 with PF1
hold)

ANT2
   \
   Manual Switch
  \--:  Antenna 3  (Manually select ATU logical segment set 1 with PF1
tap)
  \--:  Antenna 4  (Manually select ATU logical segment set 2 with PF1
hold)

Just a manual logical segment set change in support of manual external
antenna switching.

Is that do-able?  I imagine I'm not alone in the use of manual antenna
switches and needing to accommodate more than two antennas without the ATU
experiencing a high-SWR-triggered re-tune hunt each time an external switch
selects a different antenna.

Thanks,

Dan
AE9K




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Re: [Elecraft] P3 SVGA interference -

[mjpilgrim]

I have the P3 attached to a HP 23" flat screen.  I power off the external
monitor and still have the issue on the P3 internal monitor.  I power off
the monitor on two PCs in the room and power off the flat screen TV in the
room.  Still no relief.

I removed and reconnected all connections on the back of the P3, then
removed the top cover so I could attempt to change the symptoms by touching
and/or moving the ribbon cable and connectors.  No change.

I have snapped a couple pics, so will attempt later to share those if
possible.  Thanks for your replies.
Mike, K5MP



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[Elecraft] [OT] FS: raising cash for Elecraft goodies

[inventor61 .]

 Hello.  I am selling off three items I have in my not-in-current-use
inventory.
They might be interesting to many Elecrafters.

Item #1
Peaberry V1 SDR, built by me, mounted in now-unavailable KM5H case. $25
plus shipping.
See web page:
http://ae9rb.com/index.php?main_page=product_info_id=1
Set up for 20-30-40. Hooked it up to HDSDR and it seemed to work fine.
The case top has been repainted.

Item #2
NJQRP PSK80 Warbler, $25 plus shipping. See web page:
http://www.njqrp.club/warbler/index.html
Includes an uncut, still-in-factory-wrapping matching model LMB-139 case;
costs about $12 new by itself.

Item #3:
Hewlett Packard Z3801A type GPS disciplined oscillator, packaged as
accessory from former Nortel cellular base station. Manual for electrically
/ mechanically same device is here:
http://www.leapsecond.com/museum/z3801a/097-z3801-01-iss-1.pdf
For feeding precision 10 MHz signal to Elecraft K3 reference on K3EXREF
accessory module. Includes power supply and N male-SMA female adapter for
GPS antenna. Ready to connect to suitable GPS antenna and radio. $199 plus
shipping.

Paypal preferred. Replies off list, please.

73 Steve KZ1X
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Re: [Elecraft] P3 SVGA interference -

[donovanf]

Hi Mike, 


Have you tried turning your monitor off? I've never had the issue 
you describe 


73 
Frank 
W3LPL 

- Original Message -

From: "mjpilgrim"  
To: elecraft@mailman.qth.net 
Sent: Saturday, February 10, 2018 8:32:03 PM 
Subject: Re: [Elecraft] P3 SVGA interference - 

I wonder if this discussion and suggested ribbon clips address my issue. I 
acquired my K3 this past summer and then a P3 off of eBay shortly 
thereafter. I installed the SVGA adapter a couple months ago and I have a 
problem which sounds similar to what is described in this thread. For lack 
of a better description let me say this symptom happens only on 
20Meters. as I view my spectrum now from 14.250 to 14.350 the noise 
floor rests basically around S-2 across the entire band, revealing a few 
transmitted ham conversations, My center frequency on the scope is 14.300 
and at this moment I see occasional noise peaks rising up to as high as S-5 
in two or three instances approximately 10khz wide, and at times 20 khz or 
wider. These noise peaks are not consistent with any observed or detected 
human voice transmission. At times I can see a very broad band of noise on 
the waterfall which spans the entirety of the floating noise floor. The 
same observation occurs when I am tuned down in the CW portion of the band. 

I don't recall if this observation was present prior to adding the SVGA 
adapter, and I've not thought about opening the P3 to inspect or move any 
cables. 

I know this symptom can best be demonstrated with a photo, so if that would 
be beneficial, I will be happy to oblige. Just let me know who needs to see 
it. 

This is certainly a very annoying issue I wish to resolve. I'm open to any 
ideas or suggestions. 
Thanks, Mike, K5MP 



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Re: [Elecraft] Elecraft Digest, Vol 166, Issue 11

[david perry]

Re nylon pull loop for KX2

I fitted a simple nylon tie wrap around the wires of my homebrew
replacement battery.  Worked well.  The trick is, innovate!

David
G4YVM

On 10 February 2018 at 22:51,  wrote:

> Send Elecraft mailing list submissions to
> elecraft@mailman.qth.net
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://mailman.qth.net/mailman/listinfo/elecraft
> or, via email, send a message with subject or body 'help' to
> elecraft-requ...@mailman.qth.net
>
> You can reach the person managing the list at
> elecraft-ow...@mailman.qth.net
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Elecraft digest..."
>
>
> Today's Topics:
>
>1. OT:  A decent HR piece on NBC (GRANT YOUNGMAN)
>2.  New release of Win4K3Suite (Tom)
>3. Re: New release of Win4K3Suite (Bill)
>4. KX2 Nylon pull-loop for battery plug (Heinz Baertschi)
>5. Re: KX2 Nylon pull-loop for battery plug
>   (Eric Swartz - WA6HHQ, Elecraft)
>6. KPA1500 invoice (Carl Yaffey)
>7. New KAT500/KPA500 setup and utility software problems
>   (Steve Wilson)
>8. Things to do while waiting for your call for the KPA1500 (W1PEF)
>9.  New KAT500/KPA500 setup and utility software problems
>   (j...@kk9a.com)
>   10. Re: New KAT500/KPA500 setup and utility software problems
>   (Ed Pflueger)
>   11. T1 QRP Autotuner (Dave AD6A)
>   12. Re: K-Pod Power from data port for k3s serial 10511 (Roccon)
>   13. Re: New KAT500/KPA500 setup and utility software problems (G4GNX)
>   14. Major Sheldon?s last Watt (Thaire Bryant)
>   15. KX2 firmware suggestion (Mike Penzo)
>   16. K3s transmit bandwidth adjustment? (Michael Blake)
>   17. Re: K3s transmit bandwidth adjustment? (Bob McGraw K4TAX)
>   18. Re: K3s transmit bandwidth adjustment? (Michael Blake)
>   19. WANTED Elecraft K3S (K3) WANTED (ok...@seznam.cz)
>   20. LCD "+" Icon on in CW Mode (Ken Widelitz)
>   21. Re: K3s transmit bandwidth adjustment? (Bob McGraw K4TAX)
>   22. Re: P3 SVGA interference - (mjpilgrim)
>   23. Re: LCD "+" Icon on in CW Mode (Ken K6MR)
>   24. Fwd: Interpretation section finished. (Jim Brown)
>   25. Elecraft K3s with SUB RX and P3 (Graziano Roccon)
>   26. Re: KX2 firmware suggestion (Wayne Burdick)
>   27. K3 VFO A (Joseph M. Durnal)
>   28. Re: Elecraft K3s with SUB RX and P3 (Brian Hunt)
>   29. Re: P3 SVGA interference - (James Wilson)
>
>
> --
>
> Message: 1
> Date: Fri, 9 Feb 2018 13:36:22 -0500
> From: GRANT YOUNGMAN 
> To: Elecraft Reflector 
> Subject: [Elecraft] OT:  A decent HR piece on NBC
> Message-ID: <811155c9-787e-4a95-a939-9aa666c56...@gmail.com>
> Content-Type: text/plain;   charset=utf-8
>
> Just spotted this on the NBC website.  It?s about ECOM and not specific to
> Elecraft (except for all the battery powered radios), but one of the few
> decent pieces I?ve seen ...
>
> https://www.youtube.com/watch?v=dO09aMGMizM=youtu.be <
> https://www.youtube.com/watch?v=dO09aMGMizM=youtu.be>
>
>
> Grant NQ5T
> K3 #2091, KX3 #8342
>
>
>
>
>
> --
>
> Message: 2
> Date: Fri, 9 Feb 2018 14:01:08 -0500
> From: "Tom" 
> To: "Elecraft" 
> Subject: [Elecraft]  New release of Win4K3Suite
> Message-ID: <6944585B7FA54291B830B0AC5DC60236@DESKTOPAV61F2H>
> Content-Type: text/plain;   charset="iso-8859-1"
>
> Hello,
>
> There is a new release of Win4K3Suite.  This release corrects an error
> with a missing DLL when a SDRPlay RSP1A is used and improves the RIT/XIT
> function.
>
> One of the useful features of Win4K3Suite is that it interfaces to all 3rd
> party logging and digital mode programs such as HRDLogbook, DX Keeper,
> NAP3, N3FJP, N1MM+, FLDigi, MIXW as well as hardware devices such as the
> K3/0, the Pig Knob and various antenna tuners and amps.  In order to
> understand how to do this, there is a video on youtube that gives clear
> instructions on using the virtual port management facilities of
> Win4K3Suite:  You can access it at
>
> https://www.youtube.com/watch?v=1jh6IS0S1dE=4s
>
> In case you are not aware, Win4K3Suite is a comprehensive control program
> for the Elecraft K3, K3S, KX3 and KX2.  It supports all hardware such as
> the KPA500, KPA1500 and KAT500 even on the KX2.
> Win4K3Suite has built in panadapter support for the P3, LPPAN and the
> SDRPlay RSP. There is no configuration necessary to support all modes and
> filter settings for QSY's.
>
> You can read user reviews here:
> https://www.eham.net/reviews/detail/11214
>
> There is a fully functional 30 day trial available at va2fsq.com
> 73 Tom
>
> P.S. Someone made a request for synchronous AM but I have misplaced the
> email.  Please contact me off list.
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> 

Re: [Elecraft] P3 SVGA interference -

[James Wilson]

Mike,

You didn't mention if you had a large monitor connected but
consider that the noise you "see" may come from it or a TV
your have connected.

Do you see the pattern on the P3 also?

Watch the P3 screen and turn the large monitor off and see if
the signal disappears. Many of them do make a lot of electrical
"noise" - particularly the screen light source and very particularly
plasma displays.

Jim - W4RKS

--

>I wonder if this discussion and suggested ribbon clips address my issue.  I
>acquired my K3 this past summer and then a P3 off of eBay shortly
>thereafter.  I installed the SVGA adapter a couple months ago and I have a
>problem which sounds similar to what is described in this thread.

. . .

>I don't recall if this observation was present prior to adding the SVGA
>adapter, and I've not thought about opening the P3 to inspect or move any
>cables.

. . .

>Thanks, Mike, K5MP
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Re: [Elecraft] Elecraft K3s with SUB RX and P3

[Brian Hunt]

There is a P3 menu item called "Turn VFO B cursor on/off".  I don't have 
the subreceiver to check but I think that will do what you want.  GL

73,
Brian, K0DTJ

On 2/10/2018 14:17, Graziano Roccon wrote:

Hello to all,

i just installed the the KRX3A in my K3s.
Maybe is normal, but i can't see the "red bar" of second VFO on the P3
screen, except when i activate the split.
Sound strange to me, also if in effect a visual indication is useful when
you are transmitting on another frequency.
I think it would be interesting to see always the "red bar" for second rx
when you switch it on with the SUB key, isn't it ?
There is a way to do it ?

Thanks, best regards, 73's de iw2noy.



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[Elecraft] K3 VFO A

[Joseph M. Durnal]

My K3 VFO A knob doesn't seem to want to do anything.  It won't change the
frequency, nor will it change the settings in the menu.  My first guess is
that the encoder is bad.  VFO B works fine.  Is there any way I can verify
this before I pull the K3 apart?

Thanks & 73 de Joseph M. Durnal - NE3R
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Re: [Elecraft] KX2 firmware suggestion

[Wayne Burdick]

Good idea, Mike. Added to the future changes list.

Wayne
N6KR

> On Feb 10, 2018, at 9:38 AM, Mike Penzo  wrote:
> 
> While in CW mode, I typically listen with the filter wide open (2.8khz). Once 
> I find a signal, I narrow the filter down (400hz) by tapping the AF knob 
> after tapping the FIL button. 
> 
> Opening up the filter (back to search mode) requires lots of cranking on the 
> AF knob (back to 2.8khz) after tapping the FIL button. Wouldn’t it be nice if 
> tapping the AF knob while in filter adjust mode would return the filter 
> bandwidth to it’s previous setting (toggle between wide and narrow). 
> 
> Maybe there’s a way to quickly switch the filter BW back and forth 
> (wide-narrow-wide) without having to crank the AF knob that I’m not aware? If 
> not, seems like it would be an easy firmware update. 
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[Elecraft] Elecraft K3s with SUB RX and P3

[Graziano Roccon]

Hello to all,

i just installed the the KRX3A in my K3s.
Maybe is normal, but i can't see the "red bar" of second VFO on the P3
screen, except when i activate the split.
Sound strange to me, also if in effect a visual indication is useful when
you are transmitting on another frequency.
I think it would be interesting to see always the "red bar" for second rx
when you switch it on with the SUB key, isn't it ?
There is a way to do it ?

Thanks, best regards, 73's de iw2noy.



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[Elecraft] Fwd: Interpretation section finished.

[Jim Brown]

Dave has done really good work developing simple, but very powerful, 
ways to identify RFI sources.  Follow the link below, and also the link 
to his Part 1.


73, Jim K9YC

 Forwarded Message 
Subject:Interpretation section finished.
Date:   Fri, 9 Feb 2018 06:00:17 -0800
From:   Dave Cole (NK7Z) 
Organization:   NK7Z
To: Jim Brown 



Hi Jim,
I finally got the interpertation section of teh RFI series finished...

https://nk7z.net/rfi-site-survey-part-ii-interpretation/
--
73s and thanks,
Dave
NK7Z
https://www.nk7z.net

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Re: [Elecraft] LCD "+" Icon on in CW Mode

[Ken K6MR]

You have super hi speed QRQ turned on.  Go to Config->CW QRQ and set it 
to off.


Ken K6MR



On 10-Feb-18 11:58:03, "Ken Widelitz"  wrote:

The "+" icon is on in the Mode portion of the LCD window in CW mode on 
one
of my K3s. It is off in SSB mode. What does that mean and how do I turn 
it

off?



Page 36 of the manual indicates it is only on when ESSB is selected.



73, Ken, K6LA / VY2TT





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Re: [Elecraft] P3 SVGA interference -

[mjpilgrim]

I wonder if this discussion and suggested ribbon clips address my issue.  I
acquired my K3 this past summer and then a P3 off of eBay shortly
thereafter.  I installed the SVGA adapter a couple months ago and I have a
problem which sounds similar to what is described in this thread.  For lack
of a better description let me say this symptom happens only on
20Meters. as I view my spectrum now  from 14.250 to 14.350 the noise
floor rests basically around S-2 across the entire band, revealing a few
transmitted ham conversations,  My center frequency on the scope is 14.300
and at this moment I see occasional noise peaks  rising up to as high as S-5
in two or three instances approximately 10khz wide, and at times 20 khz or 
wider.  These noise peaks are not consistent with any observed or detected
human voice transmission.  At times  I can see a very broad band of noise on
the waterfall which spans the entirety of the floating noise floor.  The
same observation occurs when I am tuned down in the CW portion of the band.

I don't recall if this observation was present prior to adding the SVGA
adapter, and I've not thought about opening the P3 to inspect or move any
cables.

I know this symptom can best be demonstrated with a photo, so if that would
be beneficial, I will be happy to oblige.  Just let me know who needs to see
it.

This is certainly a very annoying issue I wish to resolve.  I'm open to any
ideas or suggestions.
Thanks, Mike, K5MP 



--
Sent from: http://elecraft.365791.n2.nabble.com/
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Re: [Elecraft] K3s transmit bandwidth adjustment?

[Bob McGraw K4TAX]

In looking back at my test data, I issue a correction as follows:

It is reasonably flat thus +/-1.5 dB from 400 Hz to about 2500 Hz.

My goof.

73
Bob, K4TAX



On 2/10/2018 1:29 PM, Michael Blake wrote:

Thank you Bob.

Mike - K9JRI



On Feb 10, 2018, at 13:57, Bob McGraw K4TAX  wrote:

Based on my measurements the transmit frequency response is limited by the 2.7 
kHz SSB filter.  It is reasonably flat thus +/-3 dB from 400 Hz to about 2500 
Hz.  My next measurement points were 300 Hz {-6 dB} on the low end and 3000 Hz 
{-6 dB} on the high end or 2700 Hz.

Thus your numbers of 200 Hz to 2900 Hz is 2.7 kHz, otherwise about the 6 dB 
points on the filter.  I did not go into the ESSB mode and perform any 
measurements.   These were done in DATA mode, thus negating TX EQ and Speech 
Processing.  I also did similar measurement with TX ALC OFF and in USB mode and 
in USB with TX EQ set to 0 dB at all frequencies and well below any ALC action.

While I'm always reluctant to measure and report transmit frequency response of a SSB 
transmit path, namely because many users not understanding what takes place, thus would 
exclaim "that's horrible frequency response"  while in fact just the opposite 
is true in that it makes for darn good sounding audio.

To answer your question, referring to the Elecraft manual and the Fred Cady book, I find no way to 
"adjust" the transmit frequency response other than via the TX EQ.   On that point, I 
will emphatically state "it is always better to attenuate a frequency or range of frequencies 
as opposed to boost a frequency or range of frequencies".

73

Bob, K4TAX




On 2/10/2018 12:04 PM, Michael Blake wrote:
Using normal SSB with the stock 2.7kHz. wide crystal filter is there any way to 
adjust the lower and upper bandwidth frequency ranges other than the TX EQ?

For example how would I adjust so that my 2.7 kHz. bandwidth was from 200Hz. to 
2900Hz.?

It is easy to do on the receiver but I cannot figure out how to do this on the 
transmitter.

73 - Mike - K9JRI


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[Elecraft] LCD "+" Icon on in CW Mode

[Ken Widelitz]

The "+" icon is on in the Mode portion of the LCD window in CW mode on one
of my K3s. It is off in SSB mode. What does that mean and how do I turn it
off? 

 

Page 36 of the manual indicates it is only on when ESSB is selected.

 

73, Ken, K6LA / VY2TT

 

 

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[Elecraft] WANTED Elecraft K3S (K3) WANTED

[ok1rk]

Hi, folks!looking for loaded Elecraft K3S / K3My favourite is K3S with sub 
RX and filters or K3 already upgraded with KSYN3A, KXV3B, KIO3B and sub RX 
(KRX3A + KSYN3A)I can consider nice K3 for upgrade myselfNo need ATU and DVR
   I accept radio from smoker shack but must be clean and 100% electrically 
Shipping to Erie CO 80516 
Payment thru PayPal 
PSE let me know what you have.. feature list and asking price TNX 73! 
David OK1RK
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Re: [Elecraft] K3s transmit bandwidth adjustment?

[Michael Blake]

Thank you Bob.

Mike - K9JRI


> On Feb 10, 2018, at 13:57, Bob McGraw K4TAX  wrote:
> 
> Based on my measurements the transmit frequency response is limited by the 
> 2.7 kHz SSB filter.  It is reasonably flat thus +/-3 dB from 400 Hz to about 
> 2500 Hz.  My next measurement points were 300 Hz {-6 dB} on the low end and 
> 3000 Hz {-6 dB} on the high end or 2700 Hz.
> 
> Thus your numbers of 200 Hz to 2900 Hz is 2.7 kHz, otherwise about the 6 dB 
> points on the filter.  I did not go into the ESSB mode and perform any 
> measurements.   These were done in DATA mode, thus negating TX EQ and Speech 
> Processing.  I also did similar measurement with TX ALC OFF and in USB mode 
> and in USB with TX EQ set to 0 dB at all frequencies and well below any ALC 
> action.
> 
> While I'm always reluctant to measure and report transmit frequency response 
> of a SSB transmit path, namely because many users not understanding what 
> takes place, thus would exclaim "that's horrible frequency response"  while 
> in fact just the opposite is true in that it makes for darn good sounding 
> audio.
> 
> To answer your question, referring to the Elecraft manual and the Fred Cady 
> book, I find no way to "adjust" the transmit frequency response other than 
> via the TX EQ.   On that point, I will emphatically state "it is always 
> better to attenuate a frequency or range of frequencies as opposed to boost a 
> frequency or range of frequencies".
> 
> 73
> 
> Bob, K4TAX
> 
> 
> 
>> On 2/10/2018 12:04 PM, Michael Blake wrote:
>> Using normal SSB with the stock 2.7kHz. wide crystal filter is there any way 
>> to adjust the lower and upper bandwidth frequency ranges other than the TX 
>> EQ?
>> 
>> For example how would I adjust so that my 2.7 kHz. bandwidth was from 200Hz. 
>> to 2900Hz.?
>> 
>> It is easy to do on the receiver but I cannot figure out how to do this on 
>> the transmitter.
>> 
>> 73 - Mike - K9JRI
>> 
>> 
>> __
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> 
> 
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Re: [Elecraft] K3s transmit bandwidth adjustment?

[Bob McGraw K4TAX]

Based on my measurements the transmit frequency response is limited by 
the 2.7 kHz SSB filter.  It is reasonably flat thus +/-3 dB from 400 Hz 
to about 2500 Hz.  My next measurement points were 300 Hz {-6 dB} on the 
low end and 3000 Hz {-6 dB} on the high end or 2700 Hz.


Thus your numbers of 200 Hz to 2900 Hz is 2.7 kHz, otherwise about the 6 
dB points on the filter.  I did not go into the ESSB mode and perform 
any measurements.   These were done in DATA mode, thus negating TX EQ 
and Speech Processing.  I also did similar measurement with TX ALC OFF 
and in USB mode and in USB with TX EQ set to 0 dB at all frequencies and 
well below any ALC action.


While I'm always reluctant to measure and report transmit frequency 
response of a SSB transmit path, namely because many users not 
understanding what takes place, thus would exclaim "that's horrible 
frequency response"  while in fact just the opposite is true in that it 
makes for darn good sounding audio.


To answer your question, referring to the Elecraft manual and the Fred 
Cady book, I find no way to "adjust" the transmit frequency response 
other than via the TX EQ.   On that point, I will emphatically state "it 
is always better to attenuate a frequency or range of frequencies as 
opposed to boost a frequency or range of frequencies".


73

Bob, K4TAX



On 2/10/2018 12:04 PM, Michael Blake wrote:

Using normal SSB with the stock 2.7kHz. wide crystal filter is there any way to 
adjust the lower and upper bandwidth frequency ranges other than the TX EQ?

For example how would I adjust so that my 2.7 kHz. bandwidth was from 200Hz. to 
2900Hz.?

It is easy to do on the receiver but I cannot figure out how to do this on the 
transmitter.

73 - Mike - K9JRI


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[Elecraft] K3s transmit bandwidth adjustment?

[Michael Blake]

Using normal SSB with the stock 2.7kHz. wide crystal filter is there any way to 
adjust the lower and upper bandwidth frequency ranges other than the TX EQ?

For example how would I adjust so that my 2.7 kHz. bandwidth was from 200Hz. to 
2900Hz.?

It is easy to do on the receiver but I cannot figure out how to do this on the 
transmitter. 

73 - Mike - K9JRI


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[Elecraft] KX2 firmware suggestion

[Mike Penzo]

While in CW mode, I typically listen with the filter wide open (2.8khz). Once I 
find a signal, I narrow the filter down (400hz) by tapping the AF knob after 
tapping the FIL button. 

Opening up the filter (back to search mode) requires lots of cranking on the AF 
knob (back to 2.8khz) after tapping the FIL button. Wouldn’t it be nice if 
tapping the AF knob while in filter adjust mode would return the filter 
bandwidth to it’s previous setting (toggle between wide and narrow). 

Maybe there’s a way to quickly switch the filter BW back and forth 
(wide-narrow-wide) without having to crank the AF knob that I’m not aware? If 
not, seems like it would be an easy firmware update. 
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[Elecraft] Major Sheldon’s last Watt

[Thaire Bryant]

Priceless!

Tnx es 73
Thaire. W2APF
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Re: [Elecraft] New KAT500/KPA500 setup and utility software problems

[G4GNX]

IMHO Norton is one of the most insidious viruses of all time. Ditch it 
completely and run one of the free Microsoft offerings and possibly 
Malwarebytes.


You will need to run the KPA500 Utility to update its firmware, change the 
start-up banner and set various menu items easily.


You should read the KAT500 manual along with Fred Cady's book. They give you 
sensible frequency segments to 'train' the KAT500, which is done in Auto 
mode. Once you've stored tuning parameters (automatic) for each band and 
antenna, you should switch to Manual mode, then every time you use a 
particular frequency, the KAT500 will tune to the nearest segment and settle 
down within milliseconds.


73,

Alan. G4GNX

-Original Message- 
From: Steve Wilson via Elecraft

Sent: Saturday, February 10, 2018 1:26 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] New KAT500/KPA500 setup and utility software problems

Hi there,
I'm assisting my godfather with setting up a new KAT500 & KPA500 to add to 
his K3/P3.

Issues I am having:
1) KAT500 makes quite a racket whenever keying up. It seems to settle down, 
but as soon as I speak, it freaks out again. He has two antennas...a hex 
beam on ant 1 and a G5RV on ant 2. The KAT500 seems to behave the same on 
both.
2) He is running Norton on his PC. Norton allowed me to download the KAT500 
utility, but not the KPA500 utility. It automatically deletes it. What's up 
with that?
Thanks for any assistance. I tried to contact Elecraft support, but I guess 
I was too close to closing.

Thanks, Steve  KO6L

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