Re: [Elecraft] What crystal filter do you use the most?

[Edward R Cole]

Doug,

Not sure what the first paragraph has to do with filter selection on the K3?

Using the 1st IF output one bypasses all filters and the DSP 2nd IF 
completely.  I know because I do that for both main and sub-receiver 
on my K3.  I use two LP-Pan (one for each IF).


You do not define "Full" in spectrum.  I suspect you mean you use the 
full bandwidth of your soundcard or the funcube.  This is 192-KHz for 
the best soundcards that I am aware of.  190-KHz is full bandwidth 
for my SDR-IQ.  Do not know what is possible with a fun-cube.


Full spectrum for my station is 100-KHz to 26-GHz; only display that 
will cover that for me is my old surplus HP141T spectrum analyzer - 
max scan spectrum is 200-MHz wide with the mw plug-in starting at fo =1500-MHz.


73, Ed - KL7UW

From: Doug Ellmore <d...@ellmore.net>
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] What crystal filter do you use the most?
Message-ID:
<canan7wz8jadhauh0ed0t9d_zsobu3dob-fwywao8f5hjc8p...@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8

On my K3 I have an LP-Pan connected to my IF out on the main receiver and a
FunCube Pro on the subreceiver IF out.  The LP-Pan is setup to a Steinberg
USB UR22 sound card.  Therefore, I have two panadapters, one through Win4K3
for the main receiver, the second using NAP3 v5 to the funcube pro.

This give full spectrum display.  I say this, because my normal operating
==snip

73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
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Re: [Elecraft] What crystal filter do you use the most?

[John Shadle]

I am one of those folks who has the INRAD 700Hz filter (special-ordered by
the guys at UNPCBs, http://www.unpcbs.com/). I use it exclusively for
scanning the bands on CW. When I want to get tighter, I have the 400Hz
filter below that. I've found that combination works wonderfully for me.

For SSB, I just have the stock 5 pole filter. I also have the AM filter,
but only use it for SWLing.

73
-john NE4U
Madison, WI
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Re: [Elecraft] What crystal filter do you use the most?

[Edward R Cole]

Bob,

Good comments.  I think those of us who have been in ham radio for 
many years still think of physical filters as doing the job of 
specifying the radio bandwidth and forget that today's radio often is 
digital or partially digital where DSP does the job and filters are 
only used supplementary to help reject off frequency interference.


I have the 13-KHz filter for FM and can be used for AM which I only 
would use for sw bc where the KBPF3 operates.  the 2.8-KHz filter 
serves 95% of my use even for CW.  The exception is working CW-eme 
where I typically operate the DSP at 100-Hz.  There the 400-Hz 
roofing filter helps improve overall noise rejection and maybe helps 
sensitivity by deepening  the off freq skirts (a guess).  I have no 
local QRM on eme.


I typically tune eme in wide bw until a signal is detected by digital 
waterfall display which I then tune in and reduce bw to hear the 
signal.  My sub-Rx only has the 2.8-KHz filter because I only use it 
for diversity using digital modes or SSB.


But it took me awhile to get my mind to accept that Rx bw is done by 
the DSP and not the filters.


PS:  my new SYN3A and KBPF3 mod kit arrived in the mail today.  Going 
to be interested to see if I see any improvement in Rx sensitivity on 
eme.  Moving below 490-KHz is the other plus as most activity is now 
472-479 KHz.


73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
dubus...@gmail.com

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Re: [Elecraft] What crystal filter do you use the most?

[Phil Wheeler]

Here 400 Hz on CW, 2800 Hz mostly on CW -- though 
I have the 1000 Hz filter for tuning on CW and one 
tighter one (2100 Hz) for more crowded SSB situations.


If budget had been a concern, I'd have gone with 
400 Hz and the stock 2700 Hz pair.


73, Phil W7OX

On 9/28/15 12:35 PM, Dan Atchison wrote:
I'm with W4TV on the 5-pole 200 Hz  filter as my 
overall go to on close in CW sigs.  The 8-pole 
250 Hz filter, which I also have, is actually 
about 350 Hz in width and way too wide for me.  
That said, I use either a 500 Hz or 400 Hz 
filter most of the time on CW/RTTY


It is unfortunate that Elecraft no longer makes 
the 200 Hz filter.  Shame.


If I was going to get only one CW filter, it 
would probably be the 400 Hz jobber.


73,
Dan


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Re: [Elecraft] What crystal filter do you use the most?

[Benny Aumala]

Being 95% CW and only sometimes on SSB
I use almost all the time 500Hz 5-pole filter.
I have 200Hz but use it very rarely.

This is just my experience since beginning of K3 history.
235 countries in QRP in 2 years, all States, all Oblasts.

BennyOH9NB

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Re: [Elecraft] What crystal filter do you use the most?

[Phil Wheeler]

Oops -- Here 400 Hz on CW, 2800 Hz mostly on SSB :-)

Phil W7OX

On 9/28/15 11:35 PM, Phil Wheeler wrote:
Here 400 Hz on CW, 2800 Hz mostly on CW -- 
though I have the 1000 Hz filter for tuning on 
CW and one tighter one (2100 Hz) for more 
crowded SSB situations.


If budget had been a concern, I'd have gone with 
400 Hz and the stock 2700 Hz pair.


73, Phil W7OX


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Re: [Elecraft] What crystal filter do you use the most?

[Jerry Moore]

The advice I received was to try the radio stock then select what I needed.  I 
didn't want to deal with offsets or aligning filters when I eventually get the 
sub RX. Because of this I opted to upgrade to the 2.8KHz and purchased the 
400Hz on this list. When I get the sub rx I'll buy 250Hz x2, and duplicate the 
filters in the main rx.

My I ideas (which may be wrong) are to strongly leverage diversity rx (two 
separate antennas and receivers). 

I was planning to get the P3 first but I'm using a poor man's Panadapter  (SDR 
and HDSDR software which works very well. I'm not sure what the P3 will do for 
me at $700 that my current setup won't other than look nice and allow pc-less 
operation. I use HRD for logging anyway so... (shrug).

I've found under normal use with the filters not configured the receiver works 
really well. Where the filters seem to matter is when trying to hear weak 
signals near VERY close and strong signals. Even without the filters it's 
copyable after some fiddling. The filters make it easy for me. Play with the 
rig and learn all the buttons and features. 

While waiting for the new K3S book to come out  ( to be released soon enough so 
I pre- ordered/paid) I went ahead and bought the current K3 book and it's 
answering most of questions. 

Hope this helps
Jer
AE4PB -K3S S.N. 10324


On September 28, 2015 2:35:13 PM EDT, "Joe Subich, W4TV"  
wrote:
>
> > What filter do you find you use the most and why?
>
>The 400 Hz filter as it works well for both CW and RTTY.
>
>If I were not so concerned about RTTY, I would consider the
>*INRAD* 500 Hz (8 pole) filter for CW along with the 200 Hz
>(5 pole) Elecraft filter for times when adjacent signals are
>just too strong (I already have the 200 Hz filters).
>
>For SSB, I believe the stock 2700 Hz is more than satisfactory.
>The improvement from the 2800 Hz [8 pole] filter does not justify
>the "exchange price" - the savings from sticking to the stock
>2700 Hz filter can be used for the 400 Hz CW filter or to *add*
>either an 1800 Hz or 2100 Hz "narrow" SSB filter if needed.
>
>73,
>
>   ... Joe, W4TV
>
>
>On 9/28/2015 10:57 AM, dw wrote:
>> Hello gang,
>> Just ordered my first K3.
>> I haven't ordered any filters or accessories yet.
>> Want to wait and see what I really will need.
>>
>> I'd like to illicit your experience with the use of crystal filters
>for
>> CW.
>> What filter do you find you use the most and why?
>> I won't be using the K3 for contestingjust casual CW-only DXing
>and
>> occasional rag-chews.
>> Of late, I've really enjoyed getting on 40m and 30m at sunrise.
>>
>> Many thanks in advance
>> N1BBR :-]
>>
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Re: [Elecraft] What crystal filter do you use the most?

[Doug Ellmore]

On my K3 I have an LP-Pan connected to my IF out on the main receiver and a
FunCube Pro on the subreceiver IF out.  The LP-Pan is setup to a Steinberg
USB UR22 sound card.  Therefore, I have two panadapters, one through Win4K3
for the main receiver, the second using NAP3 v5 to the funcube pro.

This give full spectrum display.  I say this, because my normal operating
mode with SSB is 2.8k hz and CW 250 hz dialed down to 50 hz.  I play with
RTTY in FSK mode at 300-400 hz.

I my main receiver I have 13k hz for FM and AM, 2.8k, 2.1k, and 250k.  In
the sub receiver I have 2.8k only.

During some DATA A modes using other digital software, I may adjust the
filter settings from 3k down.

CW Skimmer is setup to ready the main receiver, so it has 192khz decode.

Even during contests I usually keep my SSB filter settings at 2.8k and cw
at 50 hz.  With Win4K3 I can see most of what I need for CW and SSB for
both running and S


73 Doug NA1DX
www.ellmore.net/na1dx
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Re: [Elecraft] What crystal filter do you use the most?

[Robert G Strickland]

The lineup here is: 2.7 & 1.9 for ssb, 500/8pole and 200/5pole for cw. 
I'm seldom on ssb, 95%+ on cw, so can't say anything useful for the 
first two filters. I use both of the cw filters as conditions and 
circumstances dictate. The 500cps filter is first choice and does most 
of the work here. The 200cps filter is great for contest S in 
conjunction with an LPan panadapter as well as for very weak signals. 
While the DSP is undoubtedly doing the heavy lifting, I've got myself 
convinced that the 200cps filter does help when called upon.


...robert

On 9/28/2015 14:57, dw wrote:

Hello gang,
Just ordered my first K3.
I haven't ordered any filters or accessories yet.
Want to wait and see what I really will need.

I'd like to illicit your experience with the use of crystal filters for
CW.
What filter do you find you use the most and why?
I won't be using the K3 for contestingjust casual CW-only DXing and
occasional rag-chews.
Of late, I've really enjoyed getting on 40m and 30m at sunrise.

Many thanks in advance
N1BBR :-]



--
Robert G Strickland, PhD ABPH - KE2WY
rc...@verizon.net.usa
Syracuse, New York, USA
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Re: [Elecraft] What crystal filter do you use the most?

[Keith Onishi]

I have 3 roofing filters, 400Hz for CW and digital, 2.8kHz for SSB and 13kHz 
for listening to broadcast stations. But I should have selected 500Hz 5-pole 
and 2.7kHz 5-pole instead of 400Hz and 2.8kHz. I have very strong local power 
line noise, often S3 to S5 level. Steep filter like 8-pole filters sometimes 
internally worsen the noise level and cause less S/N to weak signals. When I 
need to use GRITTY for very weak DX RTTY signal, I have to widen the passband 
to more than 500Hz for better S/N.

73 de JH3SIF, Keith

> 2015/09/28 23:57、dw  のメール：
> 
> Hello gang,
> Just ordered my first K3.
> I haven't ordered any filters or accessories yet.
> Want to wait and see what I really will need.
> 
> I'd like to illicit your experience with the use of crystal filters for
> CW.
> What filter do you find you use the most and why?
> I won't be using the K3 for contestingjust casual CW-only DXing and
> occasional rag-chews.
> Of late, I've really enjoyed getting on 40m and 30m at sunrise.
> 
> Many thanks in advance
> N1BBR :-]
> 
> -- 
> bw...@fastmail.net
> 
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[Elecraft] What crystal filter do you use the most?

[Chuck Guenther]

This is an interesting discussion.

Before I purchased my K3 in 2008, I had become addicted to narrow 
selectivity with my previous rigs, and was routinely tuning the bands 
with cascaded 250 Hz filters.  Since I'm nearly 100 pct. CW, I purchased 
a range of crystal roofing filters to try out in my K3.  I have the 700 
Hz (special order), 400, 250 and 200 Hz filters.  I'm primarily a low 
band DX'er and like the flexibility of all these filters ahead of the 
K3's marvelous IF DSP variable filter in order to deal with varying band 
conditions.


Lately, though, I've been using the 700 Hz and 400 Hz roofing filters 
almost exclusively.   The K-3's DSP APF does a great job in peaking up 
stations near the noise level.


I also employ the DXE NCC-1 noise cancelling unit with optional matched 
receive bandpass filters installed for my favorite DX bands.  This unit 
provides additional attenuation and really helps augment the K3's 
already super dynamic range.


73,
Chuck  NI0C
KX1, K2-10, K-3, P-3

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[Elecraft] What crystal filter do you use the most?

[Dan Atchison]

I'm with W4TV on the 5-pole 200 Hz  filter as my overall go to on close 
in CW sigs.  The 8-pole 250 Hz filter, which I also have, is actually 
about 350 Hz in width and way too wide for me.  That said, I use either 
a 500 Hz or 400 Hz filter most of the time on CW/RTTY


It is unfortunate that Elecraft no longer makes the 200 Hz filter.  Shame.

If I was going to get only one CW filter, it would probably be the 400 
Hz jobber.


73,
Dan

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Re: [Elecraft] What crystal filter do you use the most?

[Guy Olinger K2AV]

Again and again, we all encounter signal conditions where a very weak
wanted signal is close to a very loud unwanted signal. For this the
best filter setup is where BOTH the roofing and the DSP filters are at the
desired operating bandwidth.

That is why for CW contesting, in pure self-defense, the 400 and 250 8 pole
roofing filters are defined as 450 and 350 respectively. 450 is a "running"
bandwidth for 500 Hz separation that recognizes that many answerers to our
CQ's do not have the ears for getting close to frequency.

When up and down loud signals get too close, dropping to 350 Hz width and
using shift will help enormously without losing too much of the space
for up and down callers.

Additionally, I make sure that the filter offsets are set so the minus 30
dB points of the two filters coincide.  The desired effect is that when you
tune away from an unwanted signal, at the passband edge it falls off like a
ball slowly rolled off a table.

This procedure finally made the K3 selectivity as sharp as my MP with the
Inrad 8 and 455 filters.

One does NOT have to treat the roofing filter as if it is not involved in
selectivity. Quite the contrary, as when a certain 40m Italian station is
35 over 9 up 350 Hz and I am being called by a QRP station using a wet
noodle antenna on his basement floor, who is well down in the S2 noise, who
also insists on adding /QRP to the end of his call.

This becomes more and more important as these RX improvements keep
shrinking what we thought was incoming noise and we hear ever weaker
signals. Turning the edge of roofer plus DSP into a knife is VERY useful.

73, Guy K2AV

On Monday, September 28, 2015, Bob McGraw - K4TAX 
wrote:

> Ken makes a pertinent comment;  "the DSP does all the rest". Suggested
> filters are roofing filters and serve a function of signal path and how
> signals outside of the DSP bandwidth can affect the receive performance.
> Receiver selectivity is actually accomplished by the DSP engine.
>


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Re: [Elecraft] What crystal filter do you use the most?

[David Cole]

Hi Mike,
I understand it is a roofing filter...  I have a number of hams, (5),
all within 1.5 miles of me, I need the roofing filter to remove them
during contests...  :)
-- 
Thanks and 73's,
For equipment, and software setups and reviews see:
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On Mon, 2015-09-28 at 12:13 -0400, Mike Reublin NF4L wrote:
> The filters you guys are discussing are roofing filters. The filtering you're 
> thinking about is done digitally, and is continuously variable. The K3s  
> isn't your Dad's analog rig.  
> 
> Here's an Elecraft article explaining roofing filters. 
> http://www.elecraft.com/K3/Roofing_Filters.htm
> 
> 73, Mike NF4L
> 
> 
> > On Sep 28, 2015, at 11:53 AM, Kenneth Christiansen  wrote:
> > 
> > Hi to the Gang
> > 
> > This is a subjective question but after using a 500 hz and 200 hz filter 
> > for 7 years I ordered a 400 filter for my K3s. The main reason is it works 
> > well for both CW and RTTY and of course the DSP does all the rest. I also 
> > ordered a 2.1 khz filter so if I go past 400 hz I get that one. It works 
> > well for me but this is just my opinion.
> > 
> > Ken W0CZw0cz at i29 dot net
> > 
> > Sent from my iPad
> > 
> >> On Sep 28, 2015, at 10:18 AM, David Cole  wrote:
> >> 
> >> For MixW support see;
> >> http://groups.yahoo.com/neo/groups/mixw/info
> >> For Dopplergram information see:
> >> http://groups.yahoo.com/neo/groups/dopplergram/info
> >> For MM-SSTV see:
> >> http://groups.yahoo.com/neo/groups/MM-SSTV/info
> >> 
> >> 
> >>> On Mon, 2015-09-28 at 07:57 -0700, dw wrote:
> >>> Hello gang,
> >>> Just ordered my first K3.
> >>> I haven't ordered any filters or accessories yet.
> >>> Want to wait and see what I really will need.
> >>> 
> >>> I'd like to illicit your experience with the use of crystal filters for
> >>> CW.
> >>> What filter do you find you use the most and why?
> >>> I won't be using the K3 for contestingjust casual CW-only DXing and
> >>> occasional rag-chews.
> >>> Of late, I've really enjoyed getting on 40m and 30m at sunrise.
> >>> 
> >>> Many thanks in advance
> >>> N1BBR :-]
> >> 
> >> __
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Re: [Elecraft] What crystal filter do you use the most?

[Joe Subich, W4TV]

> What filter do you find you use the most and why?

The 400 Hz filter as it works well for both CW and RTTY.

If I were not so concerned about RTTY, I would consider the
*INRAD* 500 Hz (8 pole) filter for CW along with the 200 Hz
(5 pole) Elecraft filter for times when adjacent signals are
just too strong (I already have the 200 Hz filters).

For SSB, I believe the stock 2700 Hz is more than satisfactory.
The improvement from the 2800 Hz [8 pole] filter does not justify
the "exchange price" - the savings from sticking to the stock
2700 Hz filter can be used for the 400 Hz CW filter or to *add*
either an 1800 Hz or 2100 Hz "narrow" SSB filter if needed.

73,

  ... Joe, W4TV


On 9/28/2015 10:57 AM, dw wrote:

Hello gang,
Just ordered my first K3.
I haven't ordered any filters or accessories yet.
Want to wait and see what I really will need.

I'd like to illicit your experience with the use of crystal filters for
CW.
What filter do you find you use the most and why?
I won't be using the K3 for contestingjust casual CW-only DXing and
occasional rag-chews.
Of late, I've really enjoyed getting on 40m and 30m at sunrise.

Many thanks in advance
N1BBR :-]


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Re: [Elecraft] What crystal filter do you use the most?

[Bob McGraw - K4TAX]

Ken makes a pertinent comment;  "the DSP does all the rest". Suggested 
filters are roofing filters and serve a function of signal path and how 
signals outside of the DSP bandwidth can affect the receive 
performance.  Receiver selectivity is actually accomplished by the DSP 
engine.  Regarding the function of roofing filters, I suggest reading 
material such as: 
http://www.sherweng.com/documents/NC0B-Contest-U-2008-9.pdf Although a 
slide presentation, the information is clearly definable and explains 
the use and the application of roofing filters.


If one is not anticipating CW contest operation nor has a station nearby 
physically that would be on the same band at the same time, then it is a 
good likelihood that no additional filter is required. As some have 
pointed out, understand that operationally the roofing filter is 
selected based on the DSP bandwidth selection.  If one chooses to 
operate CW with a 500 Hz DSP BW, the 400 Hz roofing filter would not be 
in the signal path.  Changing the DSP BW to 400 Hz or less will switch 
the 400 Hz roofing filter into the signal path.  This would then make it 
more understandable why a very narrow roofing filter might not be 
advisable unless the need actually exists.


Every one has their personal preferences based on their specific 
operation, physical location and proximity to other stations operating 
on the same band and a host of other effects.   In my case, I choose the 
6.0 kHz filter because I do operate some AM, the standard 2.7 kHz 
filter, the optional 1.8 kHz filter for SSB and the 500 Hz filter for 
digital modes and CW. In another of my radios I do have a 300 Hz 
roofing filter.  I find reducing the DSP bandwidth to 300 Hz to allow 
this filter to be selected is typically too tight for my operating 
preferences.


73
Bob, K4TAX
K3S s/n 10,163

On 9/28/2015 10:53 AM, Kenneth Christiansen wrote:

Hi to the Gang

This is a subjective question but after using a 500 hz and 200 hz filter for 7 
years I ordered a 400 filter for my K3s. The main reason is it works well for 
both CW and RTTY and of course the DSP does all the rest. I also ordered a 2.1 
khz filter so if I go past 400 hz I get that one. It works well for me but this 
is just my opinion.

Ken W0CZw0cz at i29 dot net



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Re: [Elecraft] What crystal filter do you use the most?

[Bob McGraw - K4TAX]

I would think it best to get the K3S and see how it performs before 
throwing money at a problem that may not actually exist.  Adding filters 
if and as needed is rather simple.


73
Bob, K4TAX
K3S s/n 10,163

On 9/28/2015 1:15 PM, David Cole wrote:

Hi Mike,
I understand it is a roofing filter...  I have a number of hams, (5),
all within 1.5 miles of me, I need the roofing filter to remove them
during contests...:)



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Re: [Elecraft] What crystal filter do you use the most?

[Mike Reublin NF4L]

The filters you guys are discussing are roofing filters. The filtering you're 
thinking about is done digitally, and is continuously variable. The K3s  isn't 
your Dad's analog rig.  

Here's an Elecraft article explaining roofing filters. 
http://www.elecraft.com/K3/Roofing_Filters.htm

73, Mike NF4L


> On Sep 28, 2015, at 11:53 AM, Kenneth Christiansen  wrote:
> 
> Hi to the Gang
> 
> This is a subjective question but after using a 500 hz and 200 hz filter for 
> 7 years I ordered a 400 filter for my K3s. The main reason is it works well 
> for both CW and RTTY and of course the DSP does all the rest. I also ordered 
> a 2.1 khz filter so if I go past 400 hz I get that one. It works well for me 
> but this is just my opinion.
> 
> Ken W0CZw0cz at i29 dot net
> 
> Sent from my iPad
> 
>> On Sep 28, 2015, at 10:18 AM, David Cole  wrote:
>> 
>> For MixW support see;
>> http://groups.yahoo.com/neo/groups/mixw/info
>> For Dopplergram information see:
>> http://groups.yahoo.com/neo/groups/dopplergram/info
>> For MM-SSTV see:
>> http://groups.yahoo.com/neo/groups/MM-SSTV/info
>> 
>> 
>>> On Mon, 2015-09-28 at 07:57 -0700, dw wrote:
>>> Hello gang,
>>> Just ordered my first K3.
>>> I haven't ordered any filters or accessories yet.
>>> Want to wait and see what I really will need.
>>> 
>>> I'd like to illicit your experience with the use of crystal filters for
>>> CW.
>>> What filter do you find you use the most and why?
>>> I won't be using the K3 for contestingjust casual CW-only DXing and
>>> occasional rag-chews.
>>> Of late, I've really enjoyed getting on 40m and 30m at sunrise.
>>> 
>>> Many thanks in advance
>>> N1BBR :-]
>> 
>> __
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Re: [Elecraft] What crystal filter do you use the most?

[Phil Anderson]

Hey DW etal,

I noticed that you like to get on 40 and 30 at sunrise..I may try 
that if I can get up early enough! Have you read the article in the last 
QST about the 3 myths about propagation, notably on ionization at 
sunrise? It may be of benefit.


73, Phil, W0XI, Lawrence, KS.


dw 
Monday, September 28, 2015 9:57 AM
Hello gang,
Just ordered my first K3.
I haven't ordered any filters or accessories yet.
Want to wait and see what I really will need.

I'd like to illicit your experience with the use of crystal filters for
CW.
What filter do you find you use the most and why?
I won't be using the K3 for contestingjust casual CW-only DXing and
occasional rag-chews.
Of late, I've really enjoyed getting on 40m and 30m at sunrise.

Many thanks in advance
N1BBR :-]




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[Elecraft] What crystal filter do you use the most?

[dw]

Hello gang,
Just ordered my first K3.
I haven't ordered any filters or accessories yet.
Want to wait and see what I really will need.

I'd like to illicit your experience with the use of crystal filters for
CW.
What filter do you find you use the most and why?
I won't be using the K3 for contestingjust casual CW-only DXing and
occasional rag-chews.
Of late, I've really enjoyed getting on 40m and 30m at sunrise.

Many thanks in advance
N1BBR :-]

-- 
 bw...@fastmail.net

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Re: [Elecraft] What crystal filter do you use the most?

[Kenneth Christiansen]

Hi to the gang

My vote would be for the 400 hz filter. I ordered one for my K3s and like it.

73

Ken  W0CZ w0cz at i29 dot net

Sent from my iPad

> On Sep 28, 2015, at 9:57 AM, dw  wrote:
> 
> Hello gang,
> Just ordered my first K3.
> I haven't ordered any filters or accessories yet.
> Want to wait and see what I really will need.
> 
> I'd like to illicit your experience with the use of crystal filters for
> CW.
> What filter do you find you use the most and why?
> I won't be using the K3 for contestingjust casual CW-only DXing and
> occasional rag-chews.
> Of late, I've really enjoyed getting on 40m and 30m at sunrise.
> 
> Many thanks in advance
> N1BBR :-]
> 
> -- 
> bw...@fastmail.net
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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Re: [Elecraft] What crystal filter do you use the most?

[Kenneth Christiansen]

Hi to the Gang

This is a subjective question but after using a 500 hz and 200 hz filter for 7 
years I ordered a 400 filter for my K3s. The main reason is it works well for 
both CW and RTTY and of course the DSP does all the rest. I also ordered a 2.1 
khz filter so if I go past 400 hz I get that one. It works well for me but this 
is just my opinion.

Ken W0CZw0cz at i29 dot net

Sent from my iPad

> On Sep 28, 2015, at 10:18 AM, David Cole  wrote:
> 
> For MixW support see;
> http://groups.yahoo.com/neo/groups/mixw/info
> For Dopplergram information see:
> http://groups.yahoo.com/neo/groups/dopplergram/info
> For MM-SSTV see:
> http://groups.yahoo.com/neo/groups/MM-SSTV/info
> 
> 
>> On Mon, 2015-09-28 at 07:57 -0700, dw wrote:
>> Hello gang,
>> Just ordered my first K3.
>> I haven't ordered any filters or accessories yet.
>> Want to wait and see what I really will need.
>> 
>> I'd like to illicit your experience with the use of crystal filters for
>> CW.
>> What filter do you find you use the most and why?
>> I won't be using the K3 for contestingjust casual CW-only DXing and
>> occasional rag-chews.
>> Of late, I've really enjoyed getting on 40m and 30m at sunrise.
>> 
>> Many thanks in advance
>> N1BBR :-]
> 
> __
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Re: [Elecraft] What crystal filter do you use the most?

[David Cole]

Hi,
I use the 400 Hz filter for CW, and would enjoy a 1 KHz filter I
believe...  The 400 is just a touch to narrow for my tastes.  It works
well in crowded conditions, and I would not want to get rid of it, but a
1 KHz might get more use...
-- 
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net

For MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
For Dopplergram information see:
http://groups.yahoo.com/neo/groups/dopplergram/info
For MM-SSTV see:
http://groups.yahoo.com/neo/groups/MM-SSTV/info


On Mon, 2015-09-28 at 07:57 -0700, dw wrote:
> Hello gang,
> Just ordered my first K3.
> I haven't ordered any filters or accessories yet.
> Want to wait and see what I really will need.
> 
> I'd like to illicit your experience with the use of crystal filters for
> CW.
> What filter do you find you use the most and why?
> I won't be using the K3 for contestingjust casual CW-only DXing and
> occasional rag-chews.
> Of late, I've really enjoyed getting on 40m and 30m at sunrise.
> 
> Many thanks in advance
> N1BBR :-]
> 

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Re: [Elecraft] What crystal filter do you use the most?

[WILLIS COOKE]

I am not DW but I think I qualify as etal!.  I have been doing CW since I was a 
pup and I am older than Hector.  I started with a BC455 with no crystal filter 
and the bandwidth of the receiver was about half the novice band.  I now have a 
K3 with 500 and 200 CW filters.  I sometimes use the 200 for rare DX that is in 
the noise with lots of QRM, but most of the time I set the bandwidth to about 
500 hertz.  The 500 hertz filter suits me fine.  When I use an older rig 
without digital bandwidth and with a 500 hertz filter I am real happy.  With 
the K3 I am happy with about 500 hertz band width for rag chew contacts.  It 
does not mother me to hear three or four signals unless they are about the same 
strength and about the same tone (frequency).  My K3 has standard 2700 hertz 
SSB, standard 500 hertz CW plus an additional 200 hertz filter.  I think I 
wasted money for the 200 hertz filter that I seldom use and I can't document 
any QSO that I required the 200 hertz filter to make the contact.But I am easy 
to please and was quite happy with the BC455 and a couple of crystals in 1956.  
 Willis 'Cookie' Cooke,TDXS Contest Chairman K5EWJ & Trustee N5BPS
  From: Phil Anderson <aldenmcduf...@sunflower.com>
 To: dw <bw...@fastmail.fm> 
Cc: elecraft@mailman.qth.net 
 Sent: Monday, September 28, 2015 11:10 AM
 Subject: Re: [Elecraft] What crystal filter do you use the most?
   
Hey DW etal,

I noticed that you like to get on 40 and 30 at sunrise..I may try 
that if I can get up early enough! Have you read the article in the last 
QST about the 3 myths about propagation, notably on ionization at 
sunrise? It may be of benefit.

73, Phil, W0XI, Lawrence, KS.

> dw <mailto:bw...@fastmail.fm>
> Monday, September 28, 2015 9:57 AM
> Hello gang,
> Just ordered my first K3.
> I haven't ordered any filters or accessories yet.
> Want to wait and see what I really will need.
>
> I'd like to illicit your experience with the use of crystal filters for
> CW.
> What filter do you find you use the most and why?
> I won't be using the K3 for contestingjust casual CW-only DXing and
> occasional rag-chews.
> Of late, I've really enjoyed getting on 40m and 30m at sunrise.
>
> Many thanks in advance
> N1BBR :-]
>


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