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K3 K3DSPUPG note

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Steve Ellington

K3 K3DSPUPG note

After the installation of the new Rev. D DSPUPG board, RX EQ bands 1 and 2
no longer function. It's like being back before the FW upgrade that
activated those bands. I've sent a note to Elecraft support about this. Has
anyone else noticed this?
Yes I've loaded the newest FW revs. ....Twice.
Steve
N4LQ
[hidden email]

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Bob Naumann W5OV

Re: K3 K3DSPUPG note

Yes - I see the same thing.

W5OV

> After the installation of the new Rev. D DSPUPG board, RX EQ bands 1 and 2
> no longer function. It's like being back before the FW upgrade that
> activated those bands. I've sent a note to Elecraft support about this.
> Has
> anyone else noticed this?
> Yes I've loaded the newest FW revs. ....Twice.
> Steve
> N4LQ
> [hidden email]
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> Post: mailto:[hidden email]
>
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>

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Steve Ellington

Re: K3 K3DSPUPG note

Bummer...The whole idea of this upgrade was to boost bass but instead, it's
been reduced.

Steve
N4LQ
[hidden email]
----- Original Message -----
From: <[hidden email]>
To: "Steve Ellington" <[hidden email]>
Cc: <[hidden email]>
Sent: Monday, January 11, 2010 11:47 AM
Subject: Re: [Elecraft] K3 K3DSPUPG note

> Yes - I see the same thing.
>
> W5OV
>
>
>
>> After the installation of the new Rev. D DSPUPG board, RX EQ bands 1 and
>> 2
>> no longer function. It's like being back before the FW upgrade that
>> activated those bands. I've sent a note to Elecraft support about this.
>> Has
>> anyone else noticed this?
>> Yes I've loaded the newest FW revs. ....Twice.
>> Steve
>> N4LQ
>> [hidden email]
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>
>

KK7P

Re: K3 K3DSPUPG note

Please contact Elecraft support.

As the designer of the DSP code, and of the DSP board itself, including
the latest, I am 100% certain that Rx EQ 1 and 2 function no differently
in the new board. Further, if you are using headphones, the the
increase of coupling capacitor from 10 uF to 100 uF earlier this year
improved the LF response on receive. The new LPF board is DC-coupled in
the signal path, so it has no reduction of LF response, either.

73,

Lyle KK7P
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Steve Ellington

QRe: K3 K3DSPUPG note

Believe me....EQ 1 and 2 are totally dead! They worked fine before the board
upgrade. Audio does sound clean but I've got about the same amount of bass I
had before the firmware change that enabled those eq bands.
Steve
N4LQ
[hidden email]
----- Original Message -----
From: "Lyle Johnson" <[hidden email]>
To: "Steve Ellington" <[hidden email]>
Cc: <[hidden email]>; <[hidden email]>
Sent: Monday, January 11, 2010 1:05 PM
Subject: Re: [Elecraft] K3 K3DSPUPG note

> Please contact Elecraft support.
>
> As the designer of the DSP code, and of the DSP board itself, including
> the latest, I am 100% certain that Rx EQ 1 and 2 function no differently
> in the new board. Further, if you are using headphones, the the
> increase of coupling capacitor from 10 uF to 100 uF earlier this year
> improved the LF response on receive. The new LPF board is DC-coupled in
> the signal path, so it has no reduction of LF response, either.
>
> 73,
>
> Lyle KK7P

KK7P

Re: QRe: K3 K3DSPUPG note

> Believe me....EQ 1 and 2 are totally dead!
Be sure LO CUT is set to 0.00 and not 0.10.

I just re-verified RxEQ1 and RxEQ2 work great on the new DSP board under
these conditions, which are the same as before. The K3 "default"
behavior is to cut off low frequency audio unless you deliberately shift
LO CUT (see firmware release notes for MCU 3.41/DSP 2.37 10-02-2009).

73,

Lyle KK7P

PS - I am using the latest pre-beta firmware, which I can send you
directly if you wish. It has no intentional changes in low frequency
response beyond the current public beta firmware.
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K2QI

Re: K3 K3DSPUPG note

In reply to this post by Steve Ellington

Can you guys expound on this a bit more? I've ordered but yet to receive my
DSP upgrade board. What is meant by RX EQ bands 1 and 2 no longer function
with the new board?

Curious in NY...
James K2QI

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Steve Ellington
Sent: Monday, January 11, 2010 12:48 PM
To: [hidden email]
Cc: [hidden email]
Subject: Re: [Elecraft] K3 K3DSPUPG note

Bummer...The whole idea of this upgrade was to boost bass but instead, it's
been reduced.

Steve
N4LQ
[hidden email]
----- Original Message -----
From: <[hidden email]>
To: "Steve Ellington" <[hidden email]>
Cc: <[hidden email]>
Sent: Monday, January 11, 2010 11:47 AM
Subject: Re: [Elecraft] K3 K3DSPUPG note

----------------------------------------------------------------------------
----

No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.725 / Virus Database: 270.14.134/2613 - Release Date: 01/11/10
02:35:00

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--... ...-- -.. . .--- .- -- . ...

Steve Ellington

Re: K3 K3DSPUPG note

Don't worry about it. I got tangled up in with the LO CUT settings.
Something must have changed when I updated the firmware for the new board
but I lost track of what it was!

Steve
N4LQ
[hidden email]
----- Original Message -----
From: "James Sarte" <[hidden email]>
To: <[hidden email]>
Sent: Monday, January 11, 2010 3:27 PM
Subject: Re: [Elecraft] K3 K3DSPUPG note

> Can you guys expound on this a bit more? I've ordered but yet to receive
> my
> DSP upgrade board. What is meant by RX EQ bands 1 and 2 no longer
> function
> with the new board?
>
> Curious in NY...
> James K2QI
>
> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Steve Ellington
> Sent: Monday, January 11, 2010 12:48 PM
> To: [hidden email]
> Cc: [hidden email]
> Subject: Re: [Elecraft] K3 K3DSPUPG note
>
> Bummer...The whole idea of this upgrade was to boost bass but instead,
> it's
> been reduced.
>
> Steve
> N4LQ
> [hidden email]
> ----- Original Message -----
> From: <[hidden email]>
> To: "Steve Ellington" <[hidden email]>
> Cc: <[hidden email]>
> Sent: Monday, January 11, 2010 11:47 AM
> Subject: Re: [Elecraft] K3 K3DSPUPG note
>
>
>> Yes - I see the same thing.
>>
>> W5OV
>>
>>
>>
>>> After the installation of the new Rev. D DSPUPG board, RX EQ bands 1 and
>>> 2
>>> no longer function. It's like being back before the FW upgrade that
>>> activated those bands. I've sent a note to Elecraft support about this.
>>> Has
>>> anyone else noticed this?
>>> Yes I've loaded the newest FW revs. ....Twice.
>>> Steve
>>> N4LQ
>>> [hidden email]
>>>
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:[hidden email]
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>>
>>
>>
>
>
> ----------------------------------------------------------------------------
> ----
>
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 9.0.725 / Virus Database: 270.14.134/2613 - Release Date:
> 01/11/10
> 02:35:00
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

KK7P

Re: K3 K3DSPUPG note

In reply to this post by K2QI

> Can you guys expound on this a bit more?...
RxEQ 1 and 2 work. One has to set LO CUT to 0.00, as before.

73,

Lyle KK7P
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K2QI

Re: K3 K3DSPUPG note

I got it. Tnx for the clarification!

73 de James K2QI

-----Original Message-----
From: Lyle Johnson [mailto:[hidden email]]
Sent: Monday, January 11, 2010 3:34 PM
To: James Sarte
Cc: [hidden email]
Subject: Re: [Elecraft] K3 K3DSPUPG note

> Can you guys expound on this a bit more?...
RxEQ 1 and 2 work. One has to set LO CUT to 0.00, as before.

73,

Lyle KK7P

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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--... ...-- -.. . .--- .- -- . ...

Bob Naumann W5OV

Re: K3 K3DSPUPG note

Just to further clarify, after lowering LO CUT to zero, the bottom two EQ
bands have activated!

Even so, it is indeed interesting that little energy exists at those low
frequencies - even in an AM broadcast signal.

This kind of EQ is a very powerful tool. I wish I had the free time to fully
explore its impact on the various modes.

One tip I learned from a pro audio / musician friend many years ago is that
more often reducing the EQ level of some bands is more effective than
increasing others so don't presume that you always need to boost to improve
what you hear.

73,

Bob W5OV

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of James Sarte
Sent: Monday, January 11, 2010 2:39 PM
To: 'Lyle Johnson'
Cc: [hidden email]
Subject: Re: [Elecraft] K3 K3DSPUPG note

I got it. Tnx for the clarification!

73 de James K2QI

-----Original Message-----
From: Lyle Johnson [mailto:[hidden email]]
Sent: Monday, January 11, 2010 3:34 PM
To: James Sarte
Cc: [hidden email]
Subject: Re: [Elecraft] K3 K3DSPUPG note

> Can you guys expound on this a bit more?...
RxEQ 1 and 2 work. One has to set LO CUT to 0.00, as before.

73,

Lyle KK7P

______________________________________________________________
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