Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount

2013-09-24 Thread KD7YZ Bob

On Tuesday Prather used a Straight-Key to send:
-Original Comment---
 I'm curious, what do you consider a reasonable amount?


 On Mon, Sep 23, 2013 at 9:29 PM, Edward Dickinson III 
 softb...@windstream.net wrote:

 The width of the K3 Notch-Filter is not adjustable in some reasonable
 amount.

MY reasonable amount, and I started the original Question, is circa
200Hz ... since that was the extra width I perceived I needed to wipe
out the offending traces from my
ears.


-- 
Best regards,
Bob  KD7YZ
http://www.qrz.com/db/KD7YZ

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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread Matt Zilmer
Hi Bob,

The K3's notch filter is designed to filter out CW signals.  It's
about 200 Hz wide, not much more than that.

73,
matt

On Mon, 23 Sep 2013 08:28:13 -0400, you wrote:

Howdy K3' people:

I am looking at some signals I'd like notched out. I am using WSJTx, a
Data-Mode .On 30m there is some constant garbage I was trying to remove.

However, it seems to be about 100Hz wider than the apparent notching
being done, as seen on the Waterfall around 2000 of the WSJTx display.

So, is there a hidden setting where I can make the Notch bout 400?? It
seems to be effective to 300 .

Matt Zilmer, W6NIA
www.elecraft.com
831-763-4211  x129

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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread Matt Zilmer
I didn't word that quite right  CW = continuous carrier.  It's
very good for SW BC carriers, but not intended for broader signals
like power supply gudge.

matt

On Mon, 23 Sep 2013 06:23:20 -0700, you wrote:

Hi Bob,

The K3's notch filter is designed to filter out CW signals.  It's
about 200 Hz wide, not much more than that.

73,
matt

On Mon, 23 Sep 2013 08:28:13 -0400, you wrote:

Howdy K3' people:

I am looking at some signals I'd like notched out. I am using WSJTx, a
Data-Mode .On 30m there is some constant garbage I was trying to remove.

However, it seems to be about 100Hz wider than the apparent notching
being done, as seen on the Waterfall around 2000 of the WSJTx display.

So, is there a hidden setting where I can make the Notch bout 400?? It
seems to be effective to 300 .


Matt Zilmer, W6NIA
www.elecraft.com
831-763-4211  x129

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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread David Ferrington, M0XDF
Ideal to mask carriers used by some to tune up on the freq that you'r trying to 
listen to.
73 de David, M0XDF (K3 #174, P3 #108)
-- 
The high minded man must care more for the truth than for what people
think. -Aristotle, philosopher (384-322 BCE)

On 23 Sep 2013, at 14:27, Matt Zilmer wrote:

 I didn't word that quite right  CW = continuous carrier.  It's
 very good for SW BC carriers, but not intended for broader signals
 like power supply gudge.
 
 matt
 
 On Mon, 23 Sep 2013 06:23:20 -0700, you wrote:
 
 Hi Bob,
 
 The K3's notch filter is designed to filter out CW signals.  It's
 about 200 Hz wide, not much more than that.
 
 73,
 matt
 
 On Mon, 23 Sep 2013 08:28:13 -0400, you wrote:
 
 Howdy K3' people:
 
 I am looking at some signals I'd like notched out. I am using WSJTx, a
 Data-Mode .On 30m there is some constant garbage I was trying to remove.
 
 However, it seems to be about 100Hz wider than the apparent notching
 being done, as seen on the Waterfall around 2000 of the WSJTx display.
 
 So, is there a hidden setting where I can make the Notch bout 400?? It
 seems to be effective to 300 .
 
 
 Matt Zilmer, W6NIA
 www.elecraft.com
 831-763-4211  x129
 
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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread KD7YZ Bob

On Monday Zilmer used a Straight-Key to send:
-Original Comment---
 I didn't word that quite right  CW = continuous carrier.  It's
 very good for SW BC carriers, but not intended for broader signals
 like power supply gudge.
nah, ya got it right ... there's a bunch of PSK-like tones as well as a
few spaced WSPR signals  especially in the early morning. At that
time, for me, and on a 300 foot DP, they are really annoyingly strong. I
can neatly notch most, but the roughly 200Hz width would be neat if I
could make it wider or narrower ... like a surgical removal of
CW/Narrow-PSK modes/ WSPR

was just wondering. My K3 does so many things, most of them I haven't
discovered. Found nil in the manual; had to ask here just in case.


-- 
Best regards,
Bob  KD7YZ
http://www.qrz.com/db/KD7YZ

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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread Bill Frantz
It also works wonders to filter out loud PSK31 signals that are 
overloading your audio A to D converter. Too bad auto notch 
doesn't work in this situation. (I'd go after the strongest 
signal in the DSP filter pass band.)


Cheers - Bill, AE6JV

-
On 9/23/13 at 6:23 AM, ma...@elecraft.com (Matt Zilmer) wrote:


The K3's notch filter is designed to filter out [continuous carrier] signals.  
It's
about 200 Hz wide, not much more than that.


-
Bill Frantz| The first thing you need when  | Periwinkle
(408)356-8506  | using a perimeter defense is a | 16345 
Englewood Ave
www.pwpconsult.com | perimeter. | Los Gatos, 
CA 95032


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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread Joe Subich, W4TV


 Instead of using a notch filter, how about narrowing the DSP filter
 width to select the signal that you want.

The problem is that both solutions occur *after* the A/D converter in
the radio!  One wants to get rid of the big signal or the multitude
of moderate signals before they saturate the ADC (or activate HAGC)
in order to maintain maximum sensitivity for the weak signals.

73,

   ... Joe, W4TV


On 9/23/2013 1:40 PM, Don Wilhelm wrote:

Bob,

Instead of using a notch filter, how about narrowing the DSP filter
width to select the signal that you want.
Look on the waterfall for the audio frequency of the signal of interest
and adjust the SHIFT to that center frequency, then narrow the width to
isolate that signal.

It is much more effective in reducing the strong unwanted signals than
attempting to notch them.

73,
Don W3FPR

On 9/23/2013 12:22 PM, KD7YZ Bob wrote:

On Monday Zilmer used a Straight-Key to send:
-Original Comment---

I didn't word that quite right  CW = continuous carrier.  It's
very good for SW BC carriers, but not intended for broader signals
like power supply gudge.

nah, ya got it right ... there's a bunch of PSK-like tones as well as a
few spaced WSPR signals  especially in the early morning. At that
time, for me, and on a 300 foot DP, they are really annoyingly strong. I
can neatly notch most, but the roughly 200Hz width would be neat if I
could make it wider or narrower ... like a surgical removal of
CW/Narrow-PSK modes/ WSPR

was just wondering. My K3 does so many things, most of them I haven't
discovered. Found nil in the manual; had to ask here just in case.




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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread Don Wilhelm

Bob,

Instead of using a notch filter, how about narrowing the DSP filter 
width to select the signal that you want.
Look on the waterfall for the audio frequency of the signal of interest 
and adjust the SHIFT to that center frequency, then narrow the width to 
isolate that signal.


It is much more effective in reducing the strong unwanted signals than 
attempting to notch them.


73,
Don W3FPR

On 9/23/2013 12:22 PM, KD7YZ Bob wrote:

On Monday Zilmer used a Straight-Key to send:
-Original Comment---

I didn't word that quite right  CW = continuous carrier.  It's
very good for SW BC carriers, but not intended for broader signals
like power supply gudge.

nah, ya got it right ... there's a bunch of PSK-like tones as well as a
few spaced WSPR signals  especially in the early morning. At that
time, for me, and on a 300 foot DP, they are really annoyingly strong. I
can neatly notch most, but the roughly 200Hz width would be neat if I
could make it wider or narrower ... like a surgical removal of
CW/Narrow-PSK modes/ WSPR

was just wondering. My K3 does so many things, most of them I haven't
discovered. Found nil in the manual; had to ask here just in case.




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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread KD7YZ Bob

On Monday Wilhelm used a Straight-Key to send:
-Original Comment---
 Bob,

 Instead of using a notch filter, how about narrowing the DSP filter 
 width to select the signal that you want.

Hi Don. And notwithstanding  what W4TV said, I am using the DSP, namely
the Lo and the Hi, to truncate theends of whichever
JT65/JT9 Band-Segment I am on. That I do because the RTTY people have a
horrible tendency to get right into the edges of what they perceive is
JT65 territory. So I start cutting off the ends, as needed, leaving a
fairly orderly slice for JT65/JT9, depending on which CQ I am answering.

Some places, or a place, can't remember at the moment, have plethora
WSPR and PSK kinda in the middle. So I began using the Notch after
asking around for ideas.


-- 
Best regards,
Bob  KD7YZ
http://www.qrz.com/db/KD7YZ

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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread Joe Subich, W4TV


 Some places, or a place, can't remember at the moment, have plethora
 WSPR and PSK kinda in the middle.

30 meters.

73,

   ... Joe, W4TV


On 9/23/2013 4:28 PM, KD7YZ Bob wrote:


On Monday Wilhelm used a Straight-Key to send:
-Original Comment---

Bob,



Instead of using a notch filter, how about narrowing the DSP filter
width to select the signal that you want.


Hi Don. And notwithstanding  what W4TV said, I am using the DSP, namely
the Lo and the Hi, to truncate theends of whichever
JT65/JT9 Band-Segment I am on. That I do because the RTTY people have a
horrible tendency to get right into the edges of what they perceive is
JT65 territory. So I start cutting off the ends, as needed, leaving a
fairly orderly slice for JT65/JT9, depending on which CQ I am answering.

Some places, or a place, can't remember at the moment, have plethora
WSPR and PSK kinda in the middle. So I began using the Notch after
asking around for ideas.



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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread Fred Jensen
Where do I find the definitions of JTxx Territory?  I operate RTTY 
only in a handful of contests, but I could be one of the encroachers.


73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2013 Cal QSO Party 5-6 Oct 2013
- www.cqp.org

On 9/23/2013 1:28 PM, KD7YZ Bob wrote:


That I do because the RTTY people have a
horrible tendency to get right into the edges of what they perceive is
JT65 territory.


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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread Joe Subich, W4TV


JT65A tends to be found at xx.076-xx.0785 and JT9 tends to be found
at xx.0785-xx.080 on most HF bands (substitute 10.138, 18.102 and
24.917 for xx.076 on those bands).

Note most RTTY collisions involve the RTTY folks who park on xx.080
Mark (FSK displaying mark frequency).  Since space shifts down, the
RTTY signal will chew up 300 Hz or more of the JT9 center of activity.
The bigger problem is the WinLink (PACTOR) autobots that come up
anywhere in xx.075-xx.080 without listening for *any* other activity.

73,

   ... Joe, W4TV


On 9/23/2013 7:33 PM, Fred Jensen wrote:

Where do I find the definitions of JTxx Territory?  I operate RTTY
only in a handful of contests, but I could be one of the encroachers.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2013 Cal QSO Party 5-6 Oct 2013
- www.cqp.org

On 9/23/2013 1:28 PM, KD7YZ Bob wrote:


That I do because the RTTY people have a
horrible tendency to get right into the edges of what they perceive is
JT65 territory.


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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread Vic K2VCO
Just wait until the ARRL proposal for a 2.1 kHz digital mode bandwidth in the CW/digital 
segments passes. Then we'll have autobots popping up that wipe out ten CW or narrow 
digital QSOs in one blow!


On 9/23/2013 5:10 PM, Joe Subich, W4TV wrote:


JT65A tends to be found at xx.076-xx.0785 and JT9 tends to be found
at xx.0785-xx.080 on most HF bands (substitute 10.138, 18.102 and
24.917 for xx.076 on those bands).

Note most RTTY collisions involve the RTTY folks who park on xx.080
Mark (FSK displaying mark frequency).  Since space shifts down, the
RTTY signal will chew up 300 Hz or more of the JT9 center of activity.
The bigger problem is the WinLink (PACTOR) autobots that come up
anywhere in xx.075-xx.080 without listening for *any* other activity.

73,

... Joe, W4TV


On 9/23/2013 7:33 PM, Fred Jensen wrote:

Where do I find the definitions of JTxx Territory?  I operate RTTY
only in a handful of contests, but I could be one of the encroachers.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2013 Cal QSO Party 5-6 Oct 2013
- www.cqp.org

On 9/23/2013 1:28 PM, KD7YZ Bob wrote:


That I do because the RTTY people have a
horrible tendency to get right into the edges of what they perceive is
JT65 territory.


--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread Joe Subich, W4TV



Just wait until the ARRL proposal for a 2.1 kHz digital mode
bandwidth in the CW/digital segments passes.


2.1 KHz bandwidth ... try 3 to 5 KHz!

I'm waiting on the Commission to post the proposal for comments -
then I will object to the unregulated bandwidth *and* propose that
RTTY/DATA be allowed *in the _phone_ bands*.  After all, even narrow
digital QSOs are being squeezed badly on 80 meters and the WARC
bands as it is.  There is certainly no problem with frequency
sharing between phone and data on six and two meters.

73,

   ... Joe, W4TV


On 9/23/2013 9:35 PM, Vic K2VCO wrote:

Just wait until the ARRL proposal for a 2.1 kHz digital mode bandwidth
in the CW/digital segments passes. Then we'll have autobots popping up
that wipe out ten CW or narrow digital QSOs in one blow!

On 9/23/2013 5:10 PM, Joe Subich, W4TV wrote:


JT65A tends to be found at xx.076-xx.0785 and JT9 tends to be found
at xx.0785-xx.080 on most HF bands (substitute 10.138, 18.102 and
24.917 for xx.076 on those bands).

Note most RTTY collisions involve the RTTY folks who park on xx.080
Mark (FSK displaying mark frequency).  Since space shifts down, the
RTTY signal will chew up 300 Hz or more of the JT9 center of activity.
The bigger problem is the WinLink (PACTOR) autobots that come up
anywhere in xx.075-xx.080 without listening for *any* other activity.

73,

... Joe, W4TV


On 9/23/2013 7:33 PM, Fred Jensen wrote:

Where do I find the definitions of JTxx Territory?  I operate RTTY
only in a handful of contests, but I could be one of the encroachers.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2013 Cal QSO Party 5-6 Oct 2013
- www.cqp.org

On 9/23/2013 1:28 PM, KD7YZ Bob wrote:


That I do because the RTTY people have a
horrible tendency to get right into the edges of what they perceive is
JT65 territory.



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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread Lynn W. Taylor, WB6UUT
I was under the impression that CW (and Digital) were legal in the phone 
bands, not that I've ever tried them there.


The problem isn't bandwidth as much as just plain poor operating 
practice.  Automated stations should not be exempt from the rules, or 
common courtesy.


73 -- Lynn

On 9/23/2013 6:53 PM, Joe Subich, W4TV wrote:

I'm waiting on the Commission to post the proposal for comments -
then I will object to the unregulated bandwidth *and* propose that
RTTY/DATA be allowed *in the _phone_ bands*.


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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread Bill Frantz
In the US, CW is legal in all frequencies of all bands except 
60M. For most HF bands, digital is only legal in the lower part 
of the bands -- AKA the CW portion.


On 9/23/13 at 7:51 PM, k...@coldrockshotbrooms.com (Lynn W. 
Taylor, WB6UUT) wrote:


I was under the impression that CW (and Digital) were legal in 
the phone bands, not that I've ever tried them there.

---
Bill Frantz|The nice thing about standards| Periwinkle
(408)356-8506  |is there are so many to choose| 16345 
Englewood Ave
www.pwpconsult.com |from.   - Andrew Tanenbaum| Los Gatos, 
CA 95032


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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread Fred Jensen

On 9/23/2013 7:58 PM, Bill Frantz wrote:

In the US, CW is legal in all frequencies of all bands except 60M.


Actually, CW is legal on 60m, you just have to center your signal in the 
Channel.  So is PSK, but not what we know as RTTY, despite what the 
rule language says, at least yet.


73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2013 Cal QSO Party 5-6 Oct 2013
- www.cqp.org


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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread Ron D'Eau Claire
Actually, since March of last year, CW, RTTY and data are now allowed on the
60 meter frequencies according to the latest reports I've seen from the ARRL
and FCC. The emissions must adhere to the 2.8 kHz bandwidth allowed.

The ERP was raised from 50 to 100 watts at the same time. 

And *no* automated stations are allowed. A control operator *must* be
present at all times.

73, Ron AC7AC 




-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Frantz
Sent: Monday, September 23, 2013 7:59 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some
reasonable amount?

In the US, CW is legal in all frequencies of all bands except 60M. For most
HF bands, digital is only legal in the lower part of the bands -- AKA the CW
portion.

On 9/23/13 at 7:51 PM, k...@coldrockshotbrooms.com (Lynn W. 
Taylor, WB6UUT) wrote:

I was under the impression that CW (and Digital) were legal in the 
phone bands, not that I've ever tried them there.
---
Bill Frantz|The nice thing about standards| Periwinkle
(408)356-8506  |is there are so many to choose| 16345 
Englewood Ave
www.pwpconsult.com |from.   - Andrew Tanenbaum| Los Gatos, 
CA 95032

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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount

2013-09-23 Thread Rick Prather
I'm curious, what do you consider a reasonable amount?


On Mon, Sep 23, 2013 at 9:29 PM, Edward Dickinson III 
softb...@windstream.net wrote:

 The width of the K3 Notch-Filter is not adjustable in some reasonable
 amount.





 73.

 Dick - KA5KKT



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Re: [Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

2013-09-23 Thread Eric Swartz WA6HHQ - Elecraft
Folks, we are drifting OT. Let's end this thread at this time. 

73,

Eric
List Moderator
elecraft.com
---
Sent from my iPhone 5S

 On Sep 23, 2013, at 8:43 PM, Ron D'Eau Claire r...@cobi.biz wrote:
 
 Actually, since March of last year, CW, RTTY and data are now allowed on the
 60 meter frequencies according to the latest reports I've seen from the ARRL
 and FCC. The emissions must adhere to the 2.8 kHz bandwidth allowed.
 ...
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