K3 - New firmware

[Don Rasmussen]

Since the original K3 manual was printed, many
important new setups have been added to the K3
firmware that are shown and described in separate
documents.

There is now a wiki page that contains the cumulative
options to date. Each setup option can be expanded on
by users of the K3 reflector. Have a comment to make,
or a helpful suggestion about any specific K3 CONFIG
setting?

Click on the word EDIT above the setting you can help
with, then key in your callsign and your info.

For example, I added a comment about the AGC-F config
setting, see
http://www.zerobeat.net/mediawiki/index.php/Firmware_-_revision_1.96_documented#AGC-F

Here is the main page:

http://www.zerobeat.net/mediawiki/index.php/Firmware_-_revision_1.96_documented

The page is open for user edit at this time, please
give it a look, add some expertise if you have
experience with any setup and the specific results of
changing the values.

t u ..


_______________________________________________
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

[Doug Faunt N6TQS [phone]]

> Hear! Hear! I've been slowly assembling some QRO gear to
> go with my K2, and I would love to have something that is completely
> integrated with the AUXBUS and works as well as the KPA100/KAT100
> combination. I'd be especially keen on a KPA800 that I could drive
> with just the barefoot K2; my KPA100 is in an external cabinet. The
> QRO gear lives at our vacation QTH; my main rig there is a K1 (not
> hooked to the amp) and I take the K2 with me on contest weekends. I
> like being able to pack up *just* the K2.

You can always drive a linear amp with a QRP signal, but under FCC
rules, producing more than 480 watts out with 15W in is prohibited for
a type-accepted amplifier (15 db gain).

err, why not just build up another KPA-100 and leave it with the
KPA800?

73, doug




_______________________________________________
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

[Charly]

This site must be the world's capital of Abbrevations or ABBS.  Left me in the dust.  


Charles Harpole
[hidden email]

_______________________________________________
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

[Chris Kantarjiev K6DBG]

> You can always drive a linear amp with a QRP signal, but under FCC
> rules, producing more than 480 watts out with 15W in is prohibited for
> a type-accepted amplifier (15 db gain).

Of course! Too much blood in my caffeine stream. But if there were, say, a convenient attenuator pad that could be bypassed by a motivated amateur...

> err, why not just build up another KPA-100 and leave it with the
> KPA800?

No reason, really, aside from cost (which might pale in comparison to the KPA800!)

Mostly, I guess, I hope that any such amp will be as well integrated with the K2 as the K3.

73 de chris K6DBG

[Doug Faunt N6TQS [phone]]

   Date: Mon, 19 May 2008 08:13:09 -0700 (PDT)
   From: Chris Kantarjiev K6DBG <[hidden email]>



   > You can always drive a linear amp with a QRP signal, but under FCC
   > rules, producing more than 480 watts out with 15W in is prohibited for
   > a type-accepted amplifier (15 db gain).

   Of course! Too much blood in my caffeine stream. But if there were, say, a
   convenient attenuator pad that could be bypassed by a motivated amateur...

IIRC, "easily modified" was in the older rules, but that seems to only
apply to CB coverage now.  

   > err, why not just build up another KPA-100 and leave it with the
   > KPA800?

   No reason, really, aside from cost (which might pale in comparison to the
   KPA800!)

Yep.   I suspect the KPA100 is really necessary, though, since it's got
filtering approriate for that level of output power and I think there
might be a problem with just amplifying the QRP level signal to real
QRO, without adding the extra filtering.  I suspect other know the
details on this better than I.

   Mostly, I guess, I hope that any such amp will be as well integrated with
   the K2 as the K3.

Note that the KPA800/1500 was first shown with the K2, and was closely
integrated at that time.  

Rumor:  I've heard that the amp worked really well mostly, but there was a
problem that caused much failure of the expensive power devices.

73, doug
_______________________________________________
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

[Vic K2VCO]

Doug Faunt N6TQS [phone] wrote:

> Note that the KPA800/1500 was first shown with the K2, and was closely
> integrated at that time.  

It would work well with the K2, but it was designed to work with other
popular rigs from ICOM, Yaesu, Kenwood, etc. as well. It is not 'closely
integrated' in the way that the KPA100 is!

> Rumor:  I've heard that the amp worked really well mostly, but there was a
> problem that caused much failure of the expensive power devices.

I asked Eric specifically why the amplifiers were delayed. Did they meet
IMD goals? He said that there was only one reason: the K3.

--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
_______________________________________________
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