Re: [Elecraft] 1.8 kHz SSB Filter

2018-03-09 Thread hawley, charles j jr 
http://www.elecraft.com/K3/Roofing_Filters.htm

Chuck KE9UW
c-haw...@illinois.edu<mailto:c-haw...@illinois.edu>

Sent from my iPad

On Mar 9, 2018, at 12:54 PM, Jim Low man 
<jmlow...@sbcglobal.net<mailto:jmlow...@sbcglobal.net>> wrote:


Maybe I missed it, but there once was a link on the Elecraft website with 
filter recommendations.

73 de Jim-AD6CW

On Mar 9, 2018, at 4:11 AM, Kjeld Holm 
<k...@kh-translation.dk<mailto:k...@kh-translation.dk>> wrote:

Agree
And just want to tell you that I am using Filter width=1500 and Filter=750.
Vy 73 de OZ1CCM

-Original Message-
From: elecraft-boun...@mailman.qth.net<mailto:elecraft-boun...@mailman.qth.net> 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Johnson
Sent: 9. marts 2018 02:36
To: Elecraft List
Subject: Re: [Elecraft] 1.8 kHz SSB Filter

Yes!

73,
Bill
K9YEQ

-Original Message-
From: elecraft-boun...@mailman.qth.net<mailto:elecraft-boun...@mailman.qth.net> 
<elecraft-boun...@mailman.qth.net<mailto:elecraft-boun...@mailman.qth.net>> On 
Behalf Of Bob McGraw K4TAX
Sent: Thursday, March 8, 2018 7:22 PM
To: Elecraft List <elecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net>>
Subject: Re: [Elecraft] 1.8 kHz SSB Filter

I definitely agree regarding having a 1.8 kHz filter for SSB is a positive 
attribute.   In fact both of my radios have 1.8 kHz filters. And by reducing 
the DSP BW to 1.8 kHz and shifting the PBT, one would be amazed at how well a 
SSB signal really sounds. Certainly worth the investment in my experience.

73

Bob, K4TAX


On 3/8/2018 4:38 PM, 
elecraft-requ...@mailman.qth.net<mailto:elecraft-requ...@mailman.qth.net> wrote:
Message: 1
Date: Thu, 8 Mar 2018 11:57:32 -0500
From: Craig Buck<radiok...@gmail.com<mailto:radiok...@gmail.com>>
To: Chuck Chandler<chandler...@gmail.com<mailto:chandler...@gmail.com>> 
Cc:elecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net>
Subject: Re: [Elecraft] Planning the next filters
Message-ID:
  
<caaq9xabk9igcpbvmb8ognzxnmj0h1k2x87f1dx1fjsczk_p...@mail.gmail.com<mailto:caaq9xabk9igcpbvmb8ognzxnmj0h1k2x87f1dx1fjsczk_p...@mail.gmail.com>>
Content-Type: text/plain; charset="UTF-8"

Get the 1.8 if you work ssb.  Experiment with shifting the pass band
for maximum clarity.  Youll be amazed just how narrow it can get and
still be understandable.

On Mar 8, 2018 11:24 AM, "Chuck 
Chandler"<chandler...@gmail.com<mailto:chandler...@gmail.com>>  wrote:

Right now I have the stock SSB and a 400 Hz filter in both main and
sub rcvrs.  I would like to add some a few at a time.  My first
priority is to add a couple to the main receiver, since it is the
biggest chore to get to.

I plan on a 250 Hz CW filter, but am going back and forth between the
2.1 and 1.8 kHz filters.  I know that narrowing the DSP to 1.8 gives
a really difficult to understand voice signal, while the 2.1 allows
in more adjacent signals.  However, the roofing filters may not behave in the 
same manner.
For example, the 1.8 could be set to turn on at 2.1 to take advantage
of skirt shape.

I primarily DX, and operate in some contests as well.  I know SSB
contests really need a narrow SSB filter.

Any suggestions on the matter from those who have gone this route before?

73 de Chuck, WS1L

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Re: [Elecraft] 1.8 kHz SSB Filter

2018-03-09 Thread Jim Low man 

Maybe I missed it, but there once was a link on the Elecraft website with 
filter recommendations.

73 de Jim-AD6CW 

> On Mar 9, 2018, at 4:11 AM, Kjeld Holm <k...@kh-translation.dk> wrote:
> 
> Agree
> And just want to tell you that I am using Filter width=1500 and Filter=750. 
> Vy 73 de OZ1CCM 
> 
> -Original Message-
> From: elecraft-boun...@mailman.qth.net 
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Johnson
> Sent: 9. marts 2018 02:36
> To: Elecraft List
> Subject: Re: [Elecraft] 1.8 kHz SSB Filter
> 
> Yes!
> 
> 73,
> Bill
> K9YEQ
> 
> -Original Message-
> From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> On 
> Behalf Of Bob McGraw K4TAX
> Sent: Thursday, March 8, 2018 7:22 PM
> To: Elecraft List <elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] 1.8 kHz SSB Filter
> 
> I definitely agree regarding having a 1.8 kHz filter for SSB is a positive 
> attribute.   In fact both of my radios have 1.8 kHz filters. And by reducing 
> the DSP BW to 1.8 kHz and shifting the PBT, one would be amazed at how well a 
> SSB signal really sounds. Certainly worth the investment in my experience.
> 
> 73
> 
> Bob, K4TAX
> 
> 
>> On 3/8/2018 4:38 PM, elecraft-requ...@mailman.qth.net wrote:
>> Message: 1
>> Date: Thu, 8 Mar 2018 11:57:32 -0500
>> From: Craig Buck<radiok...@gmail.com>
>> To: Chuck Chandler<chandler...@gmail.com> Cc:elecraft@mailman.qth.net
>> Subject: Re: [Elecraft] Planning the next filters
>> Message-ID:
>><caaq9xabk9igcpbvmb8ognzxnmj0h1k2x87f1dx1fjsczk_p...@mail.gmail.com>
>> Content-Type: text/plain; charset="UTF-8"
>> 
>> Get the 1.8 if you work ssb.  Experiment with shifting the pass band 
>> for maximum clarity.  Youll be amazed just how narrow it can get and 
>> still be understandable.
>> 
>>> On Mar 8, 2018 11:24 AM, "Chuck Chandler"<chandler...@gmail.com>  wrote:
>>> 
>>> Right now I have the stock SSB and a 400 Hz filter in both main and 
>>> sub rcvrs.  I would like to add some a few at a time.  My first 
>>> priority is to add a couple to the main receiver, since it is the 
>>> biggest chore to get to.
>>> 
>>> I plan on a 250 Hz CW filter, but am going back and forth between the
>>> 2.1 and 1.8 kHz filters.  I know that narrowing the DSP to 1.8 gives 
>>> a really difficult to understand voice signal, while the 2.1 allows 
>>> in more adjacent signals.  However, the roofing filters may not behave in 
>>> the same manner.
>>> For example, the 1.8 could be set to turn on at 2.1 to take advantage 
>>> of skirt shape.
>>> 
>>> I primarily DX, and operate in some contests as well.  I know SSB 
>>> contests really need a narrow SSB filter.
>>> 
>>> Any suggestions on the matter from those who have gone this route before?
>>> 
>>> 73 de Chuck, WS1L
> 
> __
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Re: [Elecraft] 1.8 kHz SSB Filter

2018-03-09 Thread Kjeld Holm 
Agree
And just want to tell you that I am using Filter width=1500 and Filter=750. 
Vy 73 de OZ1CCM 

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Johnson
Sent: 9. marts 2018 02:36
To: Elecraft List
Subject: Re: [Elecraft] 1.8 kHz SSB Filter

Yes!

73,
Bill
K9YEQ

-Original Message-
From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> On 
Behalf Of Bob McGraw K4TAX
Sent: Thursday, March 8, 2018 7:22 PM
To: Elecraft List <elecraft@mailman.qth.net>
Subject: Re: [Elecraft] 1.8 kHz SSB Filter

I definitely agree regarding having a 1.8 kHz filter for SSB is a positive 
attribute.   In fact both of my radios have 1.8 kHz filters. And by reducing 
the DSP BW to 1.8 kHz and shifting the PBT, one would be amazed at how well a 
SSB signal really sounds. Certainly worth the investment in my experience.

73

Bob, K4TAX


On 3/8/2018 4:38 PM, elecraft-requ...@mailman.qth.net wrote:
> Message: 1
> Date: Thu, 8 Mar 2018 11:57:32 -0500
> From: Craig Buck<radiok...@gmail.com>
> To: Chuck Chandler<chandler...@gmail.com> Cc:elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Planning the next filters
> Message-ID:
>   <caaq9xabk9igcpbvmb8ognzxnmj0h1k2x87f1dx1fjsczk_p...@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> Get the 1.8 if you work ssb.  Experiment with shifting the pass band 
> for maximum clarity.  Youll be amazed just how narrow it can get and 
> still be understandable.
>
> On Mar 8, 2018 11:24 AM, "Chuck Chandler"<chandler...@gmail.com>  wrote:
>
>> Right now I have the stock SSB and a 400 Hz filter in both main and 
>> sub rcvrs.  I would like to add some a few at a time.  My first 
>> priority is to add a couple to the main receiver, since it is the 
>> biggest chore to get to.
>>
>> I plan on a 250 Hz CW filter, but am going back and forth between the
>> 2.1 and 1.8 kHz filters.  I know that narrowing the DSP to 1.8 gives 
>> a really difficult to understand voice signal, while the 2.1 allows 
>> in more adjacent signals.  However, the roofing filters may not behave in 
>> the same manner.
>> For example, the 1.8 could be set to turn on at 2.1 to take advantage 
>> of skirt shape.
>>
>> I primarily DX, and operate in some contests as well.  I know SSB 
>> contests really need a narrow SSB filter.
>>
>> Any suggestions on the matter from those who have gone this route before?
>>
>> 73 de Chuck, WS1L

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Re: [Elecraft] 1.8 kHz SSB Filter

2018-03-08 Thread Bill Johnson 
Yes!

73,
Bill
K9YEQ

-Original Message-
From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> On 
Behalf Of Bob McGraw K4TAX
Sent: Thursday, March 8, 2018 7:22 PM
To: Elecraft List <elecraft@mailman.qth.net>
Subject: Re: [Elecraft] 1.8 kHz SSB Filter

I definitely agree regarding having a 1.8 kHz filter for SSB is a positive 
attribute.   In fact both of my radios have 1.8 kHz filters. And by reducing 
the DSP BW to 1.8 kHz and shifting the PBT, one would be amazed at how well a 
SSB signal really sounds. Certainly worth the investment in my experience.

73

Bob, K4TAX


On 3/8/2018 4:38 PM, elecraft-requ...@mailman.qth.net wrote:
> Message: 1
> Date: Thu, 8 Mar 2018 11:57:32 -0500
> From: Craig Buck<radiok...@gmail.com>
> To: Chuck Chandler<chandler...@gmail.com> Cc:elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Planning the next filters
> Message-ID:
>   <caaq9xabk9igcpbvmb8ognzxnmj0h1k2x87f1dx1fjsczk_p...@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> Get the 1.8 if you work ssb.  Experiment with shifting the pass band 
> for maximum clarity.  Youll be amazed just how narrow it can get and 
> still be understandable.
>
> On Mar 8, 2018 11:24 AM, "Chuck Chandler"<chandler...@gmail.com>  wrote:
>
>> Right now I have the stock SSB and a 400 Hz filter in both main and 
>> sub rcvrs.  I would like to add some a few at a time.  My first 
>> priority is to add a couple to the main receiver, since it is the 
>> biggest chore to get to.
>>
>> I plan on a 250 Hz CW filter, but am going back and forth between the 
>> 2.1 and 1.8 kHz filters.  I know that narrowing the DSP to 1.8 gives 
>> a really difficult to understand voice signal, while the 2.1 allows 
>> in more adjacent signals.  However, the roofing filters may not behave in 
>> the same manner.
>> For example, the 1.8 could be set to turn on at 2.1 to take advantage 
>> of skirt shape.
>>
>> I primarily DX, and operate in some contests as well.  I know SSB 
>> contests really need a narrow SSB filter.
>>
>> Any suggestions on the matter from those who have gone this route before?
>>
>> 73 de Chuck, WS1L

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Re: [Elecraft] 1.8 kHz SSB Filter

2018-03-08 Thread Bob McGraw K4TAX 
I definitely agree regarding having a 1.8 kHz filter for SSB is a 
positive attribute.   In fact both of my radios have 1.8 kHz filters.   
And by reducing the DSP BW to 1.8 kHz and shifting the PBT, one would be 
amazed at how well a SSB signal really sounds. Certainly worth the 
investment in my experience.


73

Bob, K4TAX


On 3/8/2018 4:38 PM, elecraft-requ...@mailman.qth.net wrote:

Message: 1
Date: Thu, 8 Mar 2018 11:57:32 -0500
From: Craig Buck
To: Chuck Chandler
Cc:elecraft@mailman.qth.net
Subject: Re: [Elecraft] Planning the next filters
Message-ID:

Content-Type: text/plain; charset="UTF-8"

Get the 1.8 if you work ssb.  Experiment with shifting the pass band for
maximum clarity.  Youll be amazed just how narrow it can get and still be
understandable.

On Mar 8, 2018 11:24 AM, "Chuck Chandler"  wrote:


Right now I have the stock SSB and a 400 Hz filter in both main and sub
rcvrs.  I would like to add some a few at a time.  My first priority is to
add a couple to the main receiver, since it is the biggest chore to get
to.

I plan on a 250 Hz CW filter, but am going back and forth between the 2.1
and 1.8 kHz filters.  I know that narrowing the DSP to 1.8 gives a really
difficult to understand voice signal, while the 2.1 allows in more adjacent
signals.  However, the roofing filters may not behave in the same manner.
For example, the 1.8 could be set to turn on at 2.1 to take advantage of
skirt shape.

I primarily DX, and operate in some contests as well.  I know SSB contests
really need a narrow SSB filter.

Any suggestions on the matter from those who have gone this route before?

73 de Chuck, WS1L


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