K3 FP Board

[N4LQ-2]

Bud
Nope. When you change from CW to SSB you'll have to redo those EQ settings.

Steve Ellington
[hidden email]
----- Original Message -----
From: "Bud Semon N7CW" <[hidden email]>
To: <[hidden email]>
Sent: Saturday, June 21, 2008 6:44 PM
Subject: RE: [Elecraft] K3 RX eq for CW

> Steve,
>
> Thanks for this insight.  Can the RX EQ be saved per mode, that is, one
> for
> SSB and one for CW?
>
> Thanks and 73, Bud  N7CW
>
> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of n4lq
> Sent: Saturday, June 21, 2008 6:44 AM
> To: [hidden email]; [hidden email]
> Subject: Re: [Elecraft] K3 RX eq for CW
>
> Drew:
> I have my sidetone pitch set for 550 Hz. The RX EQ is adjusted so that the
> 400 HZ band (button 4) is at +2 and the others above that are all set
> for -16. This eliminated a lot of QRN and other band noise plus gives a
> slight peak near the IF center. Speaker choice will play a roll in this
> decision. 73
> Steve Ellington
> [hidden email]
> ----- Original Message -----
> From: <[hidden email]>
> To: <[hidden email]>
> Sent: Saturday, June 21, 2008 9:16 AM
> Subject: [Elecraft] K3 RX eq for CW
>
>
>> Just curious, has anyone found RX eq to be useful for CW? Just
>> wondering what settings people like, if not flat.
>>
>> 73,
>> Drew
>> AF2Z
>>
>> _______________________________________________
>> Elecraft mailing list
>> Post to: [hidden email]
>> You must be a subscriber to post to the list.
>> Subscriber Info (Addr. Change, sub, unsub etc.):
>> http://mailman.qth.net/mailman/listinfo/elecraft
>>
>> Help: http://mailman.qth.net/subscribers.htm
>> Elecraft web page: http://www.elecraft.com
>
>
> ----------------------------------------------------------------------------
> ----
>
>
>
> No virus found in this incoming message.
> Checked by AVG.
> Version: 8.0.100 / Virus Database: 270.4.1/1512 - Release Date: 6/21/2008
> 9:27 AM
>
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
>
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com

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



No virus found in this incoming message.
Checked by AVG.
Version: 8.0.100 / Virus Database: 270.4.1/1512 - Release Date: 6/21/2008
9:27 AM

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

[drewko]

Yes, thanks to Steve. Fooling around with Rx eq I used his settings as
a starting point and adjusted as follows:

I cut some of the higher bands as he did in order to reduce noise. But
not too much, in order to hear signals farther off freq I generally
use a pretty wide xfil to hear more of the adjacent signals. (There
aren't too many of them out there lately.)

I also boosted the low bands because they don't add much noise and
will make it easier to hear those who call far off-frequency on the
high side (i.e., lower tone). My sidetone is 600 Hz and I can hear
off-freq signals up to about 500 Hz lower in tone (higher on the
dial).

So RX equalization is most useful to those of us who like a wide CW
filter b/w.

Yes, Bud, it would be very nice if the RX eq was mode specific.

73,
Drew
AF2Z



On Sat, 21 Jun 2008 15:44:33 -0700, Bud  N7CW wrote:

>Steve,
>
>Thanks for this insight.  Can the RX EQ be saved per mode, that is, one for
>SSB and one for CW?
>
>Thanks and 73, Bud  N7CW
>
>-----Original Message-----
>From: [hidden email]
>[mailto:[hidden email]] On Behalf Of n4lq
>Sent: Saturday, June 21, 2008 6:44 AM
>To: [hidden email]; [hidden email]
>Subject: Re: [Elecraft] K3 RX eq for CW
>
>Drew:
>I have my sidetone pitch set for 550 Hz. The RX EQ is adjusted so that the
>400 HZ band (button 4) is at +2 and the others above that are all set
>for -16. This eliminated a lot of QRN and other band noise plus gives a
>slight peak near the IF center. Speaker choice will play a roll in this
>decision. 73
>Steve Ellington

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

[David Cutter]

Add my name to that, for future firmware addition.

David
G3UNA

>
> So RX equalization is most useful to those of us who like a wide CW
> filter b/w.
>
> Yes, Bud, it would be very nice if the RX eq was mode specific.
>
> 73,
> Drew
> AF2Z
>
>

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

[KK7P]

> I cut some of the higher bands as he did in order to reduce noise. But
> not too much, in order to hear signals farther off freq I generally
> use a pretty wide xfil to hear more of the adjacent signals. (There
> aren't too many of them out there lately.)

Don't forget the dual passband CW feature of the K3.

In CW mode, just DUAL PB and adjust the width to the total width you
wish to monitor. Your preferred pitch will be accentuated, but you can
still get band context.

73,

Lyle KK7P

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

[drewko]

On Sun, 22 Jun 2008 10:56:10 -0700, Lyle KK7P wrote:

>
>Don't forget the dual passband CW feature of the K3.
>
>In CW mode, just DUAL PB and adjust the width to the total width you
>wish to monitor. Your preferred pitch will be accentuated, but you can
>still get band context.
>
>73,
>
>Lyle KK7P

I'm looking forward to trying that on a crowded band. So far since
I've gotten my K3, every time I turn the rig on band conditions are
poor and the signals have been few and far between.

For those who asked, here are my RXeq settings. I'm not sure how much
use they will be to others. The settings will be dependent on band
conditions, speakers/headphones, hearing acuity and personal
preference. I expect to be tweaking these settings fairly often.

Using a 600 Hz offset/sidetone and a 2.5 KHz bandwidth, here are my
present numbers on a noisy 40m daytime band:

50      +16
100    +16
200    +16
400    +10
800    +9
1600   +1
2400   -6
3200   -6

I did these by ear without regard to the numbers. The 3200 band
setting has no effect since the CW b/w only goes to 2.8 KHz. At least,
I can't hear any effect . I just dialed in the  minus-6 number for it
to be consistent.

I adjusted these with NR off, figuring they would allow
less-aggressive NR when I do use it.

The low bands are cranked all the way up. They don't contribute any
noise that I can hear and I want to be able to hear off-freq signals
at these low tones.

The high bands are cut just enough to remove the most irritating
portion of the noise. But again, not too much as I want to be able to
hear the off freq signals.

Except for the 400 and 800 bands these setting can probably remain
unchanged. But these two I expect to tweak pretty often (my sidetone
is 600 Hz). I'll just tweak them on a signal for the best noise margin
as I hear it.

I wouldn't mind having more than 8 bands of eq up to 3200 Hz. Of
couse, only eight bars can fit on the display at one time. Maybe they
could scroll right and left if bands 9 through 12 were added? But
really, 8 bands works well enough.

Once the eq settings are dialed it would be nice to be able to switch
back and forth to a flat setting for a quick comparison. Pushing the
CLR button restores to flat but then you lose your settings and have
to dial them all in again. I wonder if CLR could be made to toggle
between your own settings and flat instead of wiping them out?

73,
Drew
AF2Z

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

[drewko]

On Mon, 23 Jun 2008 10:20:10 -0400, I wrote:

>
>50      +16
>100    +16
>200    +16
>400    +10
>800    +9
>1600   +1
>2400   -6
>3200   -6
>

Ok, that didn't work real well. Or should I say, it worked too well...
I set these up on a noisy, empty band along with my room a/c providing
lots of ambient noise. When I finally got to try it out on a busy band
(SKCC sprint last night), it was way too much boost. Finally, I just
turned off the RX eq.

This weekend  should be a good time to mess with these settings and
the DUAL PB.

73,
Drew
AF2Z

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com