Re: [Elecraft] K2 is angry with me

2008-11-11 Thread Don Wilhelm

Colin,

The most common cause of the 'Loss Of Sidetone' problem is that you 
inadvertently changed the sidetone source in the menu.  If you tapped 
the DISPLAY button while adjusting the sidetone level, that would do the 
deed.

Bring up the ST L menu entry
Press EDIT to edit the parameter
Tap DISPLAY to toggle the sidetone source between U6-25 and U8-4  - you 
may have to tap DISPLAY a few times to get it right
When you hear sidetone stop tapping DISPLAY and tap MENU twice to exit 
the menu.


For your future operating convenience, do not change the sidetone level 
to match the signal when spotting - instead change the AF Gain to bring 
the desired signal to approximately the level you have the sidetone set 
to.  The sidetone level is not changed with the AF gain setting, so 
operating like that is possible.


73,
Don W3FPR

Colin Whitmore wrote:

So, I think that my K2 is angry with me for buying a K3!
 
I have a K2 (s/n 2833) with a seperated KPA100 and KAT100 in an EC2.  
I disconnected the amp today to run as the QRP setup and my sidetone 
seems to be gone!  I checked with a dummy load and a signal is going 
out.  All of the settings are set to the QRP version (e.g.: Mode = CW, 
ATU = Auto, StL = 030, StP = 0.60, etc.) and still nothin', ziltch, 
nada.  No sidetone on key down and no Spot sound.



___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [Elecraft] K3: new to wish-list - KEY OUT setting in menu (to be more like PTT OUT) for CW PTT mode

2008-11-11 Thread Ken_ke2n


Hello Elcrafters,

it was tested that KEY OUT port (rear panel of K3) is not in CW PTT 
mode acting as PTT OUT (how was wrongly supposed to be) and this was 
confirmed by Elecraft as intentional behavior but that if there will 
be some feedback/requests from customers, maybe will be possible to 
set this in Menu sometimes later.
unquote

You have my vote - I have already sent email to them on this. At first it
seemed that they did not understand. However, I am not holding my breath on
this one.

The KEY OUT switch (FET) is from the inverted state of the main receive
control line.

So your amplifiers and transverters (etc) are keyed up whenever you are
**not receiving**
- which is not quite the same thing as transmitting (!)

So when you program the keyer messages it turns on this output.
When you load a new MCU program in, it will key up your equipment for 3 
minutes continuously (I will not do that one again !)

Anyway, I think a wiring change is required for this one. It would be easy
to change the logic to be:

not_receive AND transmit

by one cut-and-jumper

73 

Ken
-- 
View this message in context: 
http://n2.nabble.com/K3%3A-new-to-wish-list---KEY-OUT-setting-in-menu-%28to-be-more-like-PTT-OUT%29-for-CW-PTT-mode-tp467486p1485391.html
Sent from the Elecraft mailing list archive at Nabble.com.

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] K2... P4, 10 pin Aux I/O Connector Pin-Out (Control Board)

2008-11-11 Thread KEN
Hello All,

On my assembled K2, connector P4 (control board component side) shows a 1 on 
the upper left pin.

Dose this correspond with the rest of the pins that show as 1-10 in the manual 
on the control board schematic (Appendix B), component side?

Thanks, Ken...W2GIW___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] KEY OUT

2008-11-11 Thread Ken_ke2n

Vic K2VCO (via Nabble) [EMAIL PROTECTED] wrote:


I would be very careful about this, because of the need for the key out 
to be activated a few ms. before RF appears and to stay active until 
after the RF is gone. This is necessary to prevent hot-switching of 
amplifier relays which at best will create key clicks and at worst will 
destroy the relays.
-- 
73,
Vic, K2VCO

Thanks - perhaps I should qualify that my key out goes to a sequencer that 
takes care of all the proper RF relay sequencing. Its just that I do not want 
it keyed up all those times when I am NOT transmitting AND I am using the 
transverter option running at 1 milliwatt output . 


-- 
View this message in context: 
http://n2.nabble.com/K3%3A-new-to-wish-list---KEY-OUT-setting-in-menu-%28to-be-more-like-PTT-OUT%29-for-CW-PTT-mode-tp467486p1485541.html
Sent from the Elecraft mailing list archive at Nabble.com.

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] K3 with birdie at 3.580.61

2008-11-11 Thread Gary Nichols
I notice a birdie at 3580.61 and wondered if this is normal or just my K3
needing something adjusted.de gary, kd9sv

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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

RE: [K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread KE2N
hmmm let me try again

the value in the table for the 400 Hz filter is clearly wrong.
or the spec for the filter has changed since the manunal was written

Ken

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [Elecraft] KEY OUT

2008-11-11 Thread Lance Collister

Ken_ke2n wrote:

Vic K2VCO (via Nabble) [EMAIL PROTECTED] wrote:

I would be very careful about this, because of the need for the key out 
to be activated a few ms. before RF appears and to stay active until 
after the RF is gone. This is necessary to prevent hot-switching of 
amplifier relays which at best will create key clicks and at worst will 
destroy the relays.

--
73,
Vic, K2VCO


Thanks - perhaps I should qualify that my key out goes to a sequencer that takes care of all the proper RF relay sequencing. Its just that I do not want it keyed up all those times when I am NOT transmitting AND I am using the transverter option running at 1 milliwatt output . 



I the VOX turned off and have my computer or foot switch key my SEQUENCER, which 
in turn finally keys up the K3 via the microphone PTT.  In that way, the K3 can 
never be switched HOT (unless it is put into XMIT mode automatically during 
firmware updates or something direct such as that).  GL and VY 73, Lance


--
Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8)
P.O. Box 73
Frenchtown, MT  59834  USA
QTH: DN27UB
TEL: (406) 626-5728   URL: http://www.bigskyspaces.com/w7gj
2m DXCC #11, 6m DXCC #815


___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread Bob Cunnings
Hmm - a conclusion is based on one data point? A compensation of 2dB
was correct in the case of my 400 Hz filter - but that's just
anecdotal too.

Bob NW8L

On Tue, Nov 11, 2008 at 8:40 AM,  [EMAIL PROTECTED] wrote:
 hmmm let me try again

 the value in the table for the 400 Hz filter is clearly wrong.
 or the spec for the filter has changed since the manunal was written

 Ken

 ___
 Elecraft mailing list
 Post to: Elecraft@mailman.qth.net
 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: Elecraft@mailman.qth.net
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


Re: [K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread dj7mgq

Hi Ken,


The 2 dB number is bogus, in my opinion/experience.


At least for me the 2dB recommendation for the 400Hz hit the nail  
right on the head. But on the other hand, I am not much of CW man.


vy 73 de toby
--
DD5FZ (ex 4n6fz, dj7mgq, dg5mgq, dd5fz)
K2 #885, K2/100 #3248, K3 #67


___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [K3] [Elecraft] K3 Obsolete?

2008-11-11 Thread Mark Bayern
 The D/A converter is listed as obsolete and no longer available.

From what I see on the TI site, the part you mentioned is listed as
'not recommended for new designs'. While there is no factory stock at
the moment they are expecting 10K on Dec 15th, so it is still in
production, and distributors still show stock on hand.


 Should we be concerned ?

Not me. Eric and Wayne maybe, but that would be their decision. While
there are companies I feel I could manage better than the current
owners, Elecraft is not one of them.


Mark  AD5SS




On Tue, Nov 11, 2008 at 9:27 AM, Ken_ke2n [EMAIL PROTECTED] wrote:

 The DSP chip in the K3 - TMS320VC33PGE
 (as of Sept 2008 per TI)
 is Not Recommended for New Design (i.e., obsolete)
 and a lifetime buy order is in effect

 http://focus.ti.com/lit/ds/symlink/tms320vc33.pdf

 the potential replacement (TMS320C6727B) is similar but not functionally
 equivalent - whatever that means.

 The D/A converter is listed as obsolete and no longer available.

 Should we be concerned ?

 Ken

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] K3 Summary of brick issue

2008-11-11 Thread Jeff Wandling W7BRS


I was somewhat nervous about the error message I sent so I had not thought 
through my email message clearly.


The issue is not any of the following:

1.  Firmware version
2.  Utility version
3.  Cable, serial port, or communication over RS-232.

The issue is this:

In a nutshell, user error.  But the user (me in this case!) was un-aware 
of the rules to follow:


The Utility was directed by the user to move certain firmware files to the 
K3 and the configuration of the Utility interface was not concordiant with 
the version of the firmware files.  In short, I did not realize I had left 
the check-box checked above the button Check new version.


After a few attempts, I was able to make the Utility load without error.

It was nervous for me because being firmware, seeing errors on the load 
raised the hair on the back of my neck because things like that can often 
render the platform a brick.  I knew in the back of my mind that Wayne and 
Lyle had made the process robust and enough bootstrap code should/would be 
on the K3 to bring up the executable on the K3 to handle a new MCU DL.


In the documentation there are two methods described for resetting the K3 
if the MCU load fails:


1 a) pull the power
  b) Hold the POWER button and wait about 10 seconds then go to step 3.

2 a) pull the power
  b) HOLD HI/LO while TAP POWER and wait about 2 seconds then go to step3

3 a) Re try loading the MCU - starting the Utility, re-confirming
   communication to the K3, and then choosing the firmware, etc..


The resynchronization error is a loading error by the Utility getting in 
the weeds because of the aforementioned configuration of the firmware data 
and the Utility settings (AFAIK).  I've been trying to think of the 
use-case for what caused it, but it becomes nebulous because I don't know 
enough about the protocol used by the Utility and the meaning of the data 
in the S-code files.  A block diagram of how the  Utility works would be 
great.  How it parses the first file, and etc.


Why was it so difficult to get the MCU load to work after the Re-synch 
error?


Method #1 did not work for me to re-try the MCU load.  I was only able to 
get the K3 to succeed in testing the Serial port after a failed MCU load 
if I used method #2 to re-start the K3.


The good news is that I was able to reload the MCU w/o Resync errors, but 
it was that moment of uhh oh, you know what I mean?


If I could make a suggestion to the documentation team about this:

The documentation of the error messages in the Utility doesn't seem to 
cover this error.  I searched the Help file on the Utility.  There also 
could be a little more treatment in the K3 manual over loading MCU and 
fool proof steps for loading in these use cases:


1.  Upgrading to a newer MCU
2.  Downgrading to an older MCU

And, for the support team, I'd suggest putting much more online with 
respect to past versions of the MCU.  2.57 isn't _that_ old, right?  It's 
not on the web site in a downloadable form, unless you know the secret 
URL.



All is well that ends well.

-jeff

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [K3] [Elecraft] K3 Obsolete?

2008-11-11 Thread Lyle Johnson

The K3 is designed for a long production life.

The use of functional circuit modules, like the DSP board or the 
synthesizer board, allows us to upgrade and improve and support the 
radio with a simple board swap.


To my knowledge there are *no* components that are on a lifetime buy 
or no longer in production status.


You can be certain that we monitor the supply chain very closely, and 
that we want to ensure a long life for our premier product!


73,

Lyle KK7P

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [Elecraft] K3: new to wish-list - KEY OUT setting in menu (to be more like PTT OUT) for CW PTT mode

2008-11-11 Thread Vic K2VCO

Ken_ke2n wrote:


The KEY OUT switch (FET) is from the inverted state of the main receive
control line.

So your amplifiers and transverters (etc) are keyed up whenever you are
**not receiving**
- which is not quite the same thing as transmitting (!)

So when you program the keyer messages it turns on this output.
When you load a new MCU program in, it will key up your equipment for 3 
minutes continuously (I will not do that one again !)


Anyway, I think a wiring change is required for this one. It would be easy
to change the logic to be:

not_receive AND transmit


I would be very careful about this, because of the need for the key out 
to be activated a few ms. before RF appears and to stay active until 
after the RF is gone. This is necessary to prevent hot-switching of 
amplifier relays which at best will create key clicks and at worst will 
destroy the relays.

--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


RE: [K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread Jack Regan
Thanks to all who responded to this thread. I have K3 1433 with 2.8K and 400
Hz. filters.  I boosted the 400 gain from 2 to 6 and the difference was
amazing.

 

With the NR the CW is now EASILY cleaned up at VERY narrow bandwidths! I
thought it was good before but now I see why contesters and DXers would love
this rig.

 

Jack, AE6GC 

  _  

K3NA wrote:

I've looked at three 400 Hz filters to date and values do vary from 
filter to filter; one of mine required 6 dB gain.  Other 8-pole filter 
bandwidths also vary a bit as well.

Just measure all the filters in the radio and true up the gains.  Don't 
need to worry about what the actually gain numbers are, as long as they 
can be goosed up to a uniform level.

 

 

I have the 500 Hz 5-pole, 400 Hz 8-pole, and 200 Hz 5-pole filters

and trued up the gains by ear and came up with 2dB, 6dB, and 

8 DB respectively.  This ability to adjust the gain in one dB 

increments to compensate for filter insertion loss is a wonderful

feature of the K3.  BTW, the 400 Hz 8-pole is my favorite CW

filter.  

 

73,

Chuck Guenther  NI0C

 

K2/10 s/n 5853

K3/100 s/n 1061

 



 

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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

Re: [Elecraft] KEY OUT

2008-11-11 Thread Alexandr Kobranov

Suppose there is not problem with PTT or computer controll.
What is sometimes problem is what is happened after hitting the Key in 
pure PTT mode. This is acting as activating KEY OUT port. That´s it.


Maybe there is way how to interpret Key closed when K3 is not in VOX 
or in TX mode by external PTT (line or command) or XMIT/TUNE button by 
firmware.


IMHO when K3 in PTT mode it will be better no action if the Key is 
pressed when no PTT is present (external, by command or XMIT/TUNE 
button).  Simply nothing, no KEY OUT,...like KEY port disconnected.


Maybe I missed something, maybe I am completely wrong but on any of my 
other rig(-s) never had any problem with activating connected systems 
(transverters, relays) by hitting the Key when PTT not active.


I never seen any explanation why K3 is doing by mentined way, what is 
advantege and purpose, reading list and doc very often but still not 
clear to me (and maybe others as well:-))
Time to time this topic is open without this explanation and again 
goes for sleep :-)


73!
Lexa, ok1dst
K3/10 #727


Lance Collister napsal(a):

Ken_ke2n wrote:

Vic K2VCO (via Nabble) [EMAIL PROTECTED] wrote:

I would be very careful about this, because of the need for the key 
out to be activated a few ms. before RF appears and to stay active 
until after the RF is gone. This is necessary to prevent 
hot-switching of amplifier relays which at best will create key 
clicks and at worst will destroy the relays.

--
73,
Vic, K2VCO


Thanks - perhaps I should qualify that my key out goes to a sequencer 
that takes care of all the proper RF relay sequencing. Its just that I 
do not want it keyed up all those times when I am NOT transmitting AND 
I am using the transverter option running at 1 milliwatt output .


I the VOX turned off and have my computer or foot switch key my 
SEQUENCER, which in turn finally keys up the K3 via the microphone PTT.  
In that way, the K3 can never be switched HOT (unless it is put into 
XMIT mode automatically during firmware updates or something direct such 
as that).  GL and VY 73, Lance




___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] Re: KEY OUT setting in menu...

2008-11-11 Thread Ralph Parker
 So your amplifiers and transverters (etc) are keyed up whenever you are
 **not receiving** - which is not quite the same thing as transmitting (!)

I would be very careful about this...

I don't understand the original complaint at all.
XMT: Relays before the onset of RF.
RCV: RF off before relays.
What's wrong with that?
It seems to work just fine as it is for the usual xcvr  amp combo.
(If Lance has a buncha relays and xvtrs in the next room,
that may be a different story :-)

VE7XF

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [Elecraft] KEY OUT (K3)

2008-11-11 Thread WILLIS COOKE
I may be missing something, but when I close the key in the PTT mode I get a 
sidetone with no output.  I get output only if I close the PTT or use VOX.  I 
have not yet connected my amplifier, so I am not sure what the Key Out does.  
If I am setting parameters in my K3 I want the amplifier to be either in off or 
Standby.  (On my amp Standby just removes the relay voltage in the keying 
circuit.)  I never have seen an amplifier without some kind of off and standby 
switches.  I don't understand the problem.

Willis 'Cookie' Cooke 
K5EWJ

 Elecraft web page: http://www.elecraft.com
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] K2 carrying case?

2008-11-11 Thread Chris Kantarjiev
I'm aware of Rose Kopp's lovely soft cases for the K2. I'm looking for something 
a bit more durable. I have an unused messenger-style bag and am hoping to find 
a rubbermaid/tupperware style of box that is just a bit larger than the K2; I'm 
happy to make a foam liner to protect it inside the box, and then slip it all 
into the messenger bag, along with a key, cables, etc.


I haven't yet found the perfect box, or one that's even close; the K2 is 
apparently not shaped like most things that people want to store!


Others must have been down this path before - did you find something? Do you 
remember what style/make/model?


Thanks!

vy 73 de chris K6DBG
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [Elecraft] K2 carrying case?

2008-11-11 Thread Bernie Gardner
I have a Pelican 1400 case which fits well and comes with foam padding which 
is easily shaped to the K2.  Not cheap, but very strong.

Bernie
W1AZ

On Tuesday 11 November 2008, Chris Kantarjiev wrote:
 I'm aware of Rose Kopp's lovely soft cases for the K2. I'm looking for
 something a bit more durable. I have an unused messenger-style bag and am
 hoping to find a rubbermaid/tupperware style of box that is just a bit
 larger than the K2; I'm happy to make a foam liner to protect it inside the
 box, and then slip it all into the messenger bag, along with a key, cables,
 etc.

 I haven't yet found the perfect box, or one that's even close; the K2 is
 apparently not shaped like most things that people want to store!

 Others must have been down this path before - did you find something? Do
 you remember what style/make/model?

 Thanks!

 vy 73 de chris K6DBG
 ___
 Elecraft mailing list
 Post to: Elecraft@mailman.qth.net
 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: Elecraft@mailman.qth.net
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


Re: [Elecraft] KEY OUT (K3)

2008-11-11 Thread Iain MacDonnell - K6IAM



WILLIS COOKE wrote:

I may be missing something, but when I close the key in the PTT mode I get a 
sidetone with no output.  I get output only if I close the PTT or use VOX.  I 
have not yet connected my amplifier, so I am not sure what the Key Out does.  
If I am setting parameters in my K3 I want the amplifier to be either in off or 
Standby.  (On my amp Standby just removes the relay voltage in the keying 
circuit.)  I never have seen an amplifier without some kind of off and standby 
switches.  I don't understand the problem.


So now you have two things to toggle to get into test mode - the K3
and the amp separately... and the amp may not be within arm's reach
of the operating position.

I must say that I was quite surprised (and a little embarrassed) when I
took my K3 to a contest station recently (where I'll be operating SS
this weekend), and discovered (infront of the station owner) that his
the amp was getting keyed even though the K3 was in TX TEST mode.

Whilst I (now) understand why it's happening (receiver is being turned 
off), I still think it's wrong...


~Iain


___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] Re: K3 - Line In problem

2008-11-11 Thread Fred Jensen
Barry, K6RM, got to me first and explained that the MIC gain separately 
set the gain for front panel, rear panel, and line in, depending on what 
you had chosen in MIC SEL.  It works like gang busters now.


Thanks Barry, and thanks to all who replied to me about this technical 
problem in my mind.  It all makes sense once Barry broke the code for 
me.  All I need to do now is record my SS messages, and I'm good to go 
this weekend.


73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2009 Cal QSO Party  3-4 Oct 2008
- www.cqp.org
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


RE: [K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread Dick Dievendorff
There is a table of starting values for each of the crystal filters in the
K3 Utility Help for the Filter Configuration page.

Dick, K6KR


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ken_ke2n
Sent: Tuesday, November 11, 2008 7:23 AM
To: elecraft@mailman.qth.net
Subject: Re: [K3] [Elecraft] FLx GN Adding Db gain




FLx GN

I've bought a 400hz  eight pole CW filter. Although the manual recommends
1-2 db for a setting, I see that the adjustment can be higher. What setting
are most CW operator using? 
unquote

I measured the gain change going from 450 Hz to 400 HZ (where the rig
changes from the 2.8 filter to the 400 Hz filter) by turning the AGC off and
using WSJT v 4 signal power measurement function.

I got 6-7 dB less signal through the narrow filter .. it was very obvious to
my ear.

Anyway, I found the menu option for filter gain and put in 6 dB for the 
narrow filter and 0 dB for the wider filter and now the transition across
the 450- to 400 Hz bandwidth is very seamless. I am happy.

The 2 dB number is bogus, in my opinion/experience.

Ken
-- 
View this message in context:
http://n2.nabble.com/FLx-GN-Adding-Db-gain-tp1330201p1485455.html
Sent from the [K3] mailing list archive at Nabble.com.

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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: Elecraft@mailman.qth.net
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


RE: [K3] [Elecraft] K3 Obsolete?

2008-11-11 Thread Mike Short
 I would be more concerned with YaeComWood and their proprietary chips than
anything Elecraft makes.

Try to find components for some of the other rigs... 

Mike
AI4NS

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [Elecraft] K2 carrying case?

2008-11-11 Thread Jim Wiley

Chris -


I use a Samsonite L25 case.  It is just large enough for the K2, a 
Kenwood MC43 mic, Palm paddle, a folding headset, user manual, AC 
adapter/charger, some basic antenna materials, logsheets, and cables.
Case has Velcro straps to secure radio,  several pouches, zippers 
everywhere.   I have used mine to carry the K2 all over the country.  
About $30.00 at Amazon.com  (usual disclaimers apply).



- Jim, KL7CC


Chris Kantarjiev wrote:
I'm aware of Rose Kopp's lovely soft cases for the K2. I'm looking for 
something a bit more durable. I have an unused messenger-style bag 
and am hoping to find a rubbermaid/tupperware style of box that is 
just a bit larger than the K2; I'm happy to make a foam liner to 
protect it inside the box, and then slip it all into the messenger 
bag, along with a key, cables, etc.


I haven't yet found the perfect box, or one that's even close; the K2 
is apparently not shaped like most things that people want to store!


Others must have been down this path before - did you find something? 
Do you remember what style/make/model?


Thanks!

vy 73 de chris K6DBG
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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: Elecraft@mailman.qth.net
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] K3 Carrying Case

2008-11-11 Thread Lyle Johnson

I just received my padded, custom K3 carrying case from Rose Kopp, N7HKW.

It is a work of art.  My wife Heather, N7DZU -- no mean seamstress 
herself -- had only positive to things to say after she examined it.


If you have any need at all for a way to transport your K3 and protect 
it while doing so, you might consider one these covers.


Note that this is a carrying case, not a shipping container!

Rose has no website, but you can email her at [EMAIL PROTECTED] 
for details.


73,

Lyle KK7P
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


[K3] [Elecraft] K3 Obsolete?

2008-11-11 Thread Ken_ke2n

The DSP chip in the K3 - TMS320VC33PGE
(as of Sept 2008 per TI) 
is Not Recommended for New Design (i.e., obsolete)
and a lifetime buy order is in effect

http://focus.ti.com/lit/ds/symlink/tms320vc33.pdf

the potential replacement (TMS320C6727B) is similar but not functionally
equivalent - whatever that means.

The D/A converter is listed as obsolete and no longer available.

Should we be concerned ?

Ken 

-- 
View this message in context: 
http://n2.nabble.com/K3-Obsolete--tp1485486p1485486.html
Sent from the [K3] mailing list archive at Nabble.com.

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


RE: [K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread Dick Dievendorff
The value in the table in the K3 Utility Help for the Crystal Filter
Configuration for the 400 Hz filter is 7 dB. This is a starting point. Your
individual filter may vary from that.

The values in this table came from the Elecraft manufacturing lab. These are
the starting gain compensation values that Elecraft uses when it prepares a
factory-built K3. 

After these starting values are set, then the filter gain compensation is
further adjusted (using a voltmeter across the speaker and a signal
generator, I think) to deal with filter sample variations.

7 db from the table in K3 Utility Help seems pretty close to the 6-7 db you
mentioned in your findings.

I agree that the value in the Owner's Manual isn't consistent with this.

Dick, K6KR


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, November 11, 2008 7:40 AM
To: Dick Dievendorff; elecraft@mailman.qth.net
Subject: RE: [K3] [Elecraft] FLx GN Adding Db gain

hmmm let me try again

the value in the table for the 400 Hz filter is clearly wrong.
or the spec for the filter has changed since the manunal was written

Ken


___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [Elecraft] KEY OUT (K3)

2008-11-11 Thread Don Wilhelm

Iain,

As far as I can recall, the amp keying during TX TEST is intentional - 
it allows one to activate all the controls as though switching to 
transmit, but no RF is transmitted - it is quite intuitive to me, it is 
a TEST of all the transmit control elements (internal to the K3 and 
external as well), but without producing any RF.


The situation of KEYOUT being activated by a key or paddle action when 
in CW PTT is IMHO not the proper action - PTT is PTT - and by that I 
mean that one must press PTT before anything happens.  In CW PTT, many 
have wanted sidetone to be produced when the key is activated, and all 
have wanted no RF to be transmitted - those things happen, but also the 
KEYOUT signal becomes active with keying too, and I do not believe that 
should happen - we have TX TEST to do testing that requires the KEYOUT 
to be active.


73,
Don W3FPR.


Iain MacDonnell - K6IAM wrote:



WILLIS COOKE wrote:
I may be missing something, but when I close the key in the PTT mode 
I get a sidetone with no output.  I get output only if I close the 
PTT or use VOX.  I have not yet connected my amplifier, so I am not 
sure what the Key Out does.  If I am setting parameters in my K3 I 
want the amplifier to be either in off or Standby.  (On my amp 
Standby just removes the relay voltage in the keying circuit.)  I 
never have seen an amplifier without some kind of off and standby 
switches.  I don't understand the problem.


So now you have two things to toggle to get into test mode - the K3
and the amp separately... and the amp may not be within arm's reach
of the operating position.

I must say that I was quite surprised (and a little embarrassed) when I
took my K3 to a contest station recently (where I'll be operating SS
this weekend), and discovered (infront of the station owner) that his
the amp was getting keyed even though the K3 was in TX TEST mode.

Whilst I (now) understand why it's happening (receiver is being turned 
off), I still think it's wrong...


~Iain


___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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 - http://www.avg.com 
Version: 8.0.175 / Virus Database: 270.9.1/1781 - Release Date: 11/11/2008 8:59 AM


  

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread Mike Scott
What setting
are most CW operator using?

Here are my K3 filter gain settings that make for mostly seamless
transitions. I did this by ear and looking at AFV.

 13 KHz  +1 dB
  6 KHz  +2 dB
2.7 KHz  0 dB
0.5 KHz  +6 dB

So I agree that the narrower filters seem to need more than 2 dB gain
adjustment. The wider filter gain adjustments above are probably normal
filter variations within a lot, possibly because my 2.7 KHz filter has maybe
a dB less than average loss 


Mike Scott - AE6WA
Tarzana, CA (DM04 / near LA)
K3-100 #508/ KX1  #1311


___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


RE: [Elecraft] K3 Summary of brick issue

2008-11-11 Thread Dick Dievendorff
I'm not quite sure what you did!  If the copy new files check box is
checked, then the K3 Utility will do an FTP step and copy files from
Elecraft's FTP server to your firmware folder.  First.  Before it tries to
send firmware to the K3.  
Then the most recent firmware files in the firmware folder are sent to the
K3.  

These aren't concurrent operations.

Could you expand on your sentence The Utility was directed by the user to
move certain firmware files to the K3 and the configuration of the Utility
interface was not concordiant with the version of the firmware files.  I'm
not quite sure what you mean there!

I'd like to get this right if it can be made better so that no one else
stumbles on this.

Dick, K6KR

  

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jeff Wandling W7BRS
Sent: Tuesday, November 11, 2008 8:43 AM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] K3 Summary of brick issue


I was somewhat nervous about the error message I sent so I had not thought 
through my email message clearly.

The issue is not any of the following:

1.  Firmware version
2.  Utility version
3.  Cable, serial port, or communication over RS-232.

The issue is this:

In a nutshell, user error.  But the user (me in this case!) was un-aware 
of the rules to follow:

The Utility was directed by the user to move certain firmware files to the 
K3 and the configuration of the Utility interface was not concordiant with 
the version of the firmware files.  In short, I did not realize I had left 
the check-box checked above the button Check new version.

After a few attempts, I was able to make the Utility load without error.

It was nervous for me because being firmware, seeing errors on the load 
raised the hair on the back of my neck because things like that can often 
render the platform a brick.  I knew in the back of my mind that Wayne and 
Lyle had made the process robust and enough bootstrap code should/would be 
on the K3 to bring up the executable on the K3 to handle a new MCU DL.

In the documentation there are two methods described for resetting the K3 
if the MCU load fails:

1 a) pull the power
   b) Hold the POWER button and wait about 10 seconds then go to step 3.

2 a) pull the power
   b) HOLD HI/LO while TAP POWER and wait about 2 seconds then go to step3

3 a) Re try loading the MCU - starting the Utility, re-confirming
communication to the K3, and then choosing the firmware, etc..


The resynchronization error is a loading error by the Utility getting in 
the weeds because of the aforementioned configuration of the firmware data 
and the Utility settings (AFAIK).  I've been trying to think of the 
use-case for what caused it, but it becomes nebulous because I don't know 
enough about the protocol used by the Utility and the meaning of the data 
in the S-code files.  A block diagram of how the  Utility works would be 
great.  How it parses the first file, and etc.

Why was it so difficult to get the MCU load to work after the Re-synch 
error?

Method #1 did not work for me to re-try the MCU load.  I was only able to 
get the K3 to succeed in testing the Serial port after a failed MCU load 
if I used method #2 to re-start the K3.

The good news is that I was able to reload the MCU w/o Resync errors, but 
it was that moment of uhh oh, you know what I mean?

If I could make a suggestion to the documentation team about this:

The documentation of the error messages in the Utility doesn't seem to 
cover this error.  I searched the Help file on the Utility.  There also 
could be a little more treatment in the K3 manual over loading MCU and 
fool proof steps for loading in these use cases:

1.  Upgrading to a newer MCU
2.  Downgrading to an older MCU

And, for the support team, I'd suggest putting much more online with 
respect to past versions of the MCU.  2.57 isn't _that_ old, right?  It's 
not on the web site in a downloadable form, unless you know the secret 
URL.


All is well that ends well.

-jeff

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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: Elecraft@mailman.qth.net
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


RE: [K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread Mike Scott
There is a table of starting values for each of the crystal filters in the
K3 Utility Help for the Filter Configuration page.
Dick, K6KR

Dick I notice that the table from K3 Utility Help (snippet below) does not
show the stock 2.7 KHz filter. I would guess 0 dB but strange that it wasn't
included.

Part Number Bandwidth Gain 
KFL3A-200 0.20 kHz 8 dB 
KFL3A-250 0.25 kHz 8 dB 
KFL3A-400 0.40 kHz 7 dB 
KFL3A-500 0.50 kHz 6 db 
KFL3A-1.0K 1.00 kHz 1 dB 
KFL3A-1.8K 1.80 kHz 2 dB 
KFL3A-2.1K 2.10 kHz 2 dB 
KFL3A-2.8K 2.80 kHz 0 dB 
KFL3A-6K 6.00 kHz 0 dB 
KFL3B-FM 13.00 kHz 0 dB 


Mike Scott - AE6WA
Tarzana, CA (DM04 / near LA)
K3-100 #508/ KX1  #1311



___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


RE: [Elecraft] K3 Summary of brick issue

2008-11-11 Thread Jeff Wandling W7BRS


OK. Let me try to break it into the sequence of how you get here.

You get a K3 and it's pre loaded with a certain MCU and DSP, etc..

My K3 was loaded with 2.57 MCU and the corresponding DSP.

Time past.  I got a straight-DB9 serial cable on Friday (Frys) and 
proceeded to use it to test the latest K3 Utility (whatever version the 
latest is) that my PC (Dell D600 Latitude Notebook) was able to talk to 
the K3.  It was.  I could see my filter data, etc..


Now came the new firm ware:  I wanted to try the beta release, 2.63 I 
believe it was.


So I ran the Utility, tested the connection.

I set the Folder to store firmware.

I left the checkbox checked copy new files from Elecraft because I had 
none yet, this would be the first upgrade so I needed the files copied 
from their ftp server.


I pressed Send all Firmware to K3.

It downloaded the firmware, and loaded it on the K3.  No errors.  No 
resynchronization warnings, etc..  All good.


Time past.

I noticed a behavior with my amp-key line that I didn't notice on 2.57 so 
I wanted to regress the condition with the original 2.57 to make sure it 
wasn't firmware, but perhaps the amp or something else.  I had to strike 
firmware off the list given that 2.63 was fairly new beta firmware.


So I tried to reload 2.57  but I had no copy and none is on the Elecraft 
web site, hence my request earlier for a copy.


I got a copy (thanks!) and put it into a folder.  I re-ran the utility, 
set the folder to look there.


I pressed Send Firmware to K3 **

** = mistake

When this happend, I began to see scores of warnings Resynchronized at 
load address x0X, response N, sent 67b, # attempts.. etc..


The last Log entry in the Activity Log was:

18:55:42 MCU block write failed at address x0X
18:55:42 MCU programming failed. Verify file source and version.
Turn the K3 off and back on, then re-try the firmware load.
18:55:42 MCU programming failed. Verify file source and version.
Turn the K3 off and back on, then re-try the firmware load.
18:55:45 Ready


So I tried to restart the K3 and re-load the MCU.

Restarting the K3 so a new load can be done is itself tricky  as I 
learned.  If you cycle power, and restart the K3 you need to wait for some 
reason until the existing firmware bootloader (or whatever the exec is on 
the K3 that runs) finishes it's business before the Utility will even 
succeed in test-connection.


Once the test-connection passes, I re-attempted (2nd attempt for the MCU 
load) and received the same error as before.


I realized too late that I forgot to uncheck the box Copy new files from 
Elecraft.


After I figured out the bone-headed mistake, I tried to start over by 
trying to load the latest from Elecraft (2.46 is the latest regular 
release).


After some painful waiting and hundreds of warnings about the 
Resynchronization I was finally able to load 2.57 last night.


This morning, I got a copy of 2.65 (yes .65) from Elecraft and tried to 
load it with my knowledge of how the Utility works (Uncheck COpy new 
files and press Check Versions Now) before trying to Send all Firmware 
to K3.


Since this morning, I've been unable to successfully load a MCU.  The 
cable is new and I tested it. The serial port is on a computer that has 
shown no issues (I use it with ACLog), so I'm just a little perplexed.


I'm convinced I pooched it, but I don't know exactly what I could have 
done to continue the badness given I am using (I hope) the Utility the way 
it was designed.


Comments below, inline:

On Tue, 11 Nov 2008, Dick Dievendorff wrote:


I'm not quite sure what you did!  If the copy new files check box is
checked, then the K3 Utility will do an FTP step and copy files from
Elecraft's FTP server to your firmware folder.  First.  Before it tries to
send firmware to the K3.
Then the most recent firmware files in the firmware folder are sent to the
K3.
These aren't concurrent operations.


Yup, that was my understanding initially too.

The Utility lets you get latest regular release (currently being 2.46) or 
let's you install beta or any other version when unchecked.



Could you expand on your sentence The Utility was directed by the user to
move certain firmware files to the K3 and the configuration of the Utility
interface was not concordiant with the version of the firmware files.  I'm
not quite sure what you mean there!


I directed the Utility to move certain files to the K3 by pressing Send 
all Firmware to K3, and:


The files it had moved were files that were from a folder on the PC and 
the checkbox copy new files was checked.  The folder already contained 
files from a different version MCU.  So I was asking the Utility to Send 
All Firmware, and what it did (since the checkbox was checked) is first 
download (into the folder already populated) and then begin the MCU LD.


Thus, I had no clue that the data it downloaded clobbered some data that 
was already in the folder, or maybe not. I really don't know, hence fubar.



RE: [K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread Dick Dievendorff
This has been corrected in a version of the K3 Utility that is now being
evaluated by Field Test.  

0 db is right.

Thanks!

Dick


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mike Scott
Sent: Tuesday, November 11, 2008 12:40 PM
To: Elecraft@mailman.qth.net
Subject: RE: [K3] [Elecraft] FLx GN Adding Db gain

There is a table of starting values for each of the crystal filters in the
K3 Utility Help for the Filter Configuration page.
Dick, K6KR

Dick I notice that the table from K3 Utility Help (snippet below) does not
show the stock 2.7 KHz filter. I would guess 0 dB but strange that it wasn't
included.

Part Number Bandwidth Gain 
KFL3A-200 0.20 kHz 8 dB 
KFL3A-250 0.25 kHz 8 dB 
KFL3A-400 0.40 kHz 7 dB 
KFL3A-500 0.50 kHz 6 db 
KFL3A-1.0K 1.00 kHz 1 dB 
KFL3A-1.8K 1.80 kHz 2 dB 
KFL3A-2.1K 2.10 kHz 2 dB 
KFL3A-2.8K 2.80 kHz 0 dB 
KFL3A-6K 6.00 kHz 0 dB 
KFL3B-FM 13.00 kHz 0 dB 


Mike Scott - AE6WA
Tarzana, CA (DM04 / near LA)
K3-100 #508/ KX1  #1311



___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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: Elecraft@mailman.qth.net
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


dB Gain -- was RE: [K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread Jim Brown
At the risk of being pedantic, the correct unit is the deciBel, one 
tenth of a Bel, and the correct abbreviation is dB (not Db).  The 
Bel is a unit of change in loudness and is named after Alexander 
Graham Bell. Because the way humans hear is logarithmic (as is our 
perception of light), the Bel (and the deciBel) are the log of the 
ratio of sound levels, and are translated into the log of power 
levels and voltage levels corresponding to that loudness change. 

73,

Jim K9YC



___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


[K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread Craig D. Smith
I have the full range of filters, from 13 KHz to 200 Hz and found that there
isn't enough adjustment range to get them all exactly equalized.  That is,
with the 2.7 KHz set to 0 (minimum possible) and the 200 Hz set to +8dB
(maximum possible) the 200 Hz was still 2 dB down from the 2.7KHz.  So what
I did was to equalize the three filters that I use for CW (my primary mode
of operation) at one value and equalize the 13KHz and 2.7KHz filters at
another value (used for MW, SW listening, etc).  This seems to work out
quite well in practice.  Here is what I ended up with.  The first column is
the variation in dB with the AGC off.  The second is with the AGC on.  I
used a signal generator and the K3 built-in audio voltmeter for the
measurement.

Filterw/o AGCw AGC
13 K   -0.5   -0.1
2.7 K 0   0
1.0 K  -2.1   -0.4
500 H -1.5   -0.3
200 H -2.0   -0.4

   73
 ... Craig  AC0DS



___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [Elecraft] K3 Carrying Case

2008-11-11 Thread Greg
Not only is Rose's work nothing short of exceptional, so is her service. 
Always quick communication and if there's any problem she is quick to make 
corrections.  Nothing but great things to see for her work and service


73
Greg
AB7R

LyleDid you get a custom case to be able to carry your K3 in the many 
pieces it always seems to be in  :)




- Original Message - 
From: Lyle Johnson [EMAIL PROTECTED]

To: 'Elecraft Group' elecraft@mailman.qth.net
Sent: Tuesday, November 11, 2008 11:58 AM
Subject: [Elecraft] K3 Carrying Case



I just received my padded, custom K3 carrying case from Rose Kopp, N7HKW.

It is a work of art.  My wife Heather, N7DZU -- no mean seamstress
herself -- had only positive to things to say after she examined it.

If you have any need at all for a way to transport your K3 and protect
it while doing so, you might consider one these covers.

Note that this is a carrying case, not a shipping container!

Rose has no website, but you can email her at [EMAIL PROTECTED]
for details.

73,

Lyle KK7P
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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 - http://www.avg.com
Version: 8.0.175 / Virus Database: 270.9.1/1781 - Release Date: 11/11/2008 
8:59 AM


___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] K3 with birdie at 3.580.61

2008-11-11 Thread Mike Scott
I notice a birdie at 3580.61 and wondered if this is normal or just my K3
needing something adjusted.de gary, kd9sv

Same here, my birdie shows S3 with antenna disconnected, so the equivalent
of about one microvolt if it was a signal at the antenna terminals. You need
a quiet band to hear this level. My 80M band is never that quiet.

Just tuning around a bit with antenna disconnected and found these potential
additional birdies. Definitely not an exhaustive search...Most are not
audible over band noise with an antenna connected.
2.00879
2.56715
3.30527
3.58061 (yours)
3.594
4.479
4.490
4.7218
6.87934
7.16043
7.12503

Mike Scott - AE6WA
Tarzana, CA (DM04 / near LA)
K3-100 #508/ KX1  #1311



___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] Editing RIG files (Elecraft K3)

2008-11-11 Thread Peter Bacon
Can somebody point me to where I can find a detailed description of how to
edit the rig files in DX4WIN.

I am not happy with the way DX4WIN controls my Elecraft K3 when I click on a
spot.  Sometimes the K3 switches band and not mode.  Other times the K3 sets
the filters to the narrowest bandwidth.  So I would like to see if I can
tweak the RIG file to improve the performance.  Note I am using the latest
version of DX4WIN with the latest version of the K3 RIG file.

73 Peter G3ZSS

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] 6mtr power jump

2008-11-11 Thread Kennet4723
I find the same thing on my K3 #167

Ken K1DWZ
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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

Re: [Elecraft] K3 Filters, Shift Control and RTTY

2008-11-11 Thread David Wilburn
If the other station has AFC on in their software, they tend to wander 
around a bit.  I tend NOT to run AFC if I am SP, as I line right up 
on them.  If I am running and there is activity around me, it is hard 
to run AFC, as my signal then wanders around.  But if someone comes up 
a bit off, or I have some room around me, I then run it. It then 
aligns my frequency with theirs.


Its a lot like CW contests, where so many do not zero you before they 
call.


David Wilburn
NM4M
http://www.nm4m.com




Ron Kenwood wrote:
I have been playing in the WAE RTTY contest. I am mainly using the 250Hz 
roofing filter with DSP bandwidth at 300 Hz. I occasionally use the 
1.8kHz filter with DSP set at about 500 Hz. In either configuration, I 
find that I have to use the shift control to center signals in the 
bandpass. Not sure if this is a hardware or software thing, but in any 
case, I have two issues. One is that the minimum shift value is too 
large to accomplish what I want to do at the narrow bandwidth, and when 
I try to use the dual bandpass filter it appears that shift is disabled.


Am I missing something(highly likely), or do I have to request that 
changes be added to the wish list?



Ron W3ZV
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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: Elecraft@mailman.qth.net
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


Re: [K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread Ken_ke2n



FLx GN

I've bought a 400hz  eight pole CW filter. Although the manual recommends
1-2 db for a setting, I see that the adjustment can be higher. What setting
are most CW operator using? 
unquote

I measured the gain change going from 450 Hz to 400 HZ (where the rig
changes from the 2.8 filter to the 400 Hz filter) by turning the AGC off and
using WSJT v 4 signal power measurement function.

I got 6-7 dB less signal through the narrow filter .. it was very obvious to
my ear.

Anyway, I found the menu option for filter gain and put in 6 dB for the 
narrow filter and 0 dB for the wider filter and now the transition across
the 450- to 400 Hz bandwidth is very seamless. I am happy.

The 2 dB number is bogus, in my opinion/experience.

Ken
-- 
View this message in context: 
http://n2.nabble.com/FLx-GN-Adding-Db-gain-tp1330201p1485455.html
Sent from the [K3] mailing list archive at Nabble.com.

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [Elecraft] K3 Summary of brick issue

2008-11-11 Thread Bob Cunnings
There's a link to the full revision history at the top of  the K3
Software Page, just under the Beta software download and installation
instructions link.

Bob NW8L

On Tue, Nov 11, 2008 at 9:42 AM, Jeff Wandling W7BRS [EMAIL PROTECTED] wrote:


 And, for the support team, I'd suggest putting much more online with respect
 to past versions of the MCU.  2.57 isn't _that_ old, right?  It's not on the
 web site in a downloadable form, unless you know the secret URL.

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


re: [K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread ni0c
K3NA wrote:
I've looked at three 400 Hz filters to date and values do vary from 
filter to filter; one of mine required 6 dB gain.  Other 8-pole filter 
bandwidths also vary a bit as well.

Just measure all the filters in the radio and true up the gains.  Don't 
need to worry about what the actually gain numbers are, as long as they 
can be goosed up to a uniform level.


I have the 500 Hz 5-pole, 400 Hz 8-pole, and 200 Hz 5-pole filters
and trued up the gains by ear and came up with 2dB, 6dB, and 
8 DB respectively.  This ability to adjust the gain in one dB 
increments to compensate for filter insertion loss is a wonderful
feature of the K3.  BTW, the 400 Hz 8-pole is my favorite CW
filter.  

73,
Chuck Guenther  NI0C

K2/10 s/n 5853
K3/100 s/n 1061



___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] Re: K3 KEY OUT situation

2008-11-11 Thread Ralph Parker
As far as I can recall, the amp keying during TX TEST is intentional...
OK, I can live with that, BUT...

The situation of KEYOUT being activated by a key or paddle action when 
in CW PTT is IMHO not the proper action...
Agreed - MHO also.

...In CW PTT, many have wanted sidetone to be produced when the key is
activated...
I'm one of those. I use it to set my freq relative to the received signal,
or to set my speed to match the received station, or just to enjoy sending
to myself. And I don't want the rx to go on and off as I key. The noise
drives me crazy, as Mario noted some days ago.
The K3 does not follow the 'norm' of all other rigs I've used.

...we have TX TEST to do testing that requires the KEYOUT to be active.
Yes, I have no problem with this.

But I definitely do not want any external equipment to be keyed when I
casually close my paddles while in rx mode.

Anybody know if Wayne is a CW op? Lets gang up on him.

VE7XF

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread Lyle Johnson

FLx GN

I've bought a 400hz  eight pole CW filter. Although the manual recommends
1-2 db for a setting, I see that the adjustment can be higher. What setting
are most CW operator using? 
unquote


I measured the gain change going from 450 Hz to 400 HZ (where the rig
changes from the 2.8 filter to the 400 Hz filter) by turning the AGC off and
using WSJT v 4 signal power measurement function.


You can also use the AFV/dBV function in the radio to directly measure 
the filter insertion loss.


I won't give you a step by step procedure.  That is left as an exercise 
for you.


I will suggest that AGC ought to be OFF, the signal you tune in ought to 
be steady with a good SNR, and that the K3 has an internal oscillator 
around 49.380 MHz.


Enjoy!

73,

Lyle KK7P
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread Eric Scace K3NA
I've looked at three 400 Hz filters to date and values do vary from 
filter to filter; one of mine required 6 dB gain.  Other 8-pole filter 
bandwidths also vary a bit as well.


Just measure all the filters in the radio and true up the gains.  Don't 
need to worry about what the actually gain numbers are, as long as they 
can be goosed up to a uniform level.


on 08 Nov 11 Tue 10:44 [EMAIL PROTECTED] said the following:

Hi Ken,


The 2 dB number is bogus, in my opinion/experience.


At least for me the 2dB recommendation for the 400Hz hit the nail 
right on the head. But on the other hand, I am not much of CW man.


vy 73 de toby

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] K2 and options for sale

2008-11-11 Thread Jim Wiley
Fully loaded K2 with several options for sale.  $250.00 off kit price.  
Contact me off list for details.



- Jim, KL7CC


___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] KPA-100 plus options for sale

2008-11-11 Thread Jim Wiley


For sale: KPA-100 plus KAT-100 in EC2 case, plus accessories, for sale.  
Fully assembled and tested, perfect condition.  Contact me off list for 
details.



- Jim, KL7CC


___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [Elecraft] K3 with birdie at 3.580.61

2008-11-11 Thread Mario Lorenz
Hi
 I notice a birdie at 3580.61 and wondered if this is normal or just my K3
 needing something adjusted.de gary, kd9sv
 
 Same here, my birdie shows S3 with antenna disconnected, so the equivalent
 of about one microvolt if it was a signal at the antenna terminals. You need
 a quiet band to hear this level. My 80M band is never that quiet.
 
 Just tuning around a bit with antenna disconnected and found these potential
 additional birdies. Definitely not an exhaustive search...Most are not
 audible over band noise with an antenna connected.

I have seen several more/different ones, with up to S4 on the S-Meter. I
have been able to reduce them to S1..S2 by improving the contact of the
crystal oscillator (do you have the regular or the 1ppm one ?) and
rerouting the TMP cables.

I would be interested in your experiences re

a) if these birdies are on the SubRX as well if you have one (for me,
they are not, except a very select few which then are S0/barely audible).
(the initial response from [EMAIL PROTECTED] was that some birdies were
normal)
b) if you see any difference if you touch the TCXO
c) if the K3 was a kit or a factory unit

Some more experiments are forthcomming but I didnt have the time in
the past days to do them...


Mario, DL5MLO
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [Elecraft] K3 with birdie at 3.580.61

2008-11-11 Thread Jim Brown
Probably the color oscillator from a nearby TV set -- 3579.8 kHz, 
plus/minus either some calibration error if you're in CW mode, or 
the offset you've selected for SSB/PSK. 

73,

Jim K9YC

--Original Message Text---
From: Gary Nichols
Date: Tue, 11 Nov 2008 10:37:37 -0400



I notice a birdie at 3580.61 and wondered if this is normal or just my K3 
needing 
something adjustedde gary, kd9sv  



___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] Elecraft] K3 with birdie at 3.580.61

2008-11-11 Thread Ken Kopp
It -may- be 3579.5454 ... the TV color burst frequency.

If the TV is receiving network programming, the frequency
will be quite accurate, since the networks are usually in 
phase with the NBS cesium clock in Boulder.

Or, at least this used to be that way it was ... (;-)

73! Ken Kopp - K0PP
 [EMAIL PROTECTED]
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] Elecraft] K3 with birdie at 3.580.61

2008-11-11 Thread Ken Kopp
It -may- be 3579.5454 ... the TV color burst frequency.

If the TV is receiving network programming, the frequency
will be quite accurate, since the networks are usually in 
phase with the NBS cesium clock in Boulder.

Or, at least it was that way in the past. (;-)

73! Ken Kopp - K0PP
 [EMAIL PROTECTED]
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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

Re: [K3] [Elecraft] K3 Obsolete?

2008-11-11 Thread Ken_ke2n

oops  - I see I put in the wrong link (although one of the reply-ee's found
it)

it should be this one for the DSP

http://focus.ti.com/docs/prod/folders/print/tms320vc33.html

the D/A chip that I was referring to is the TI one too ...
also tried to find the the TI D/A chip on Mouser and Digikey and got the
obsolete designation as well.

I am not surprised that there is a big batch of the TMS chips coming. That's
what they do: announce upcoming obsolescence, get an idea of who wants how
many and then make one final big batch and no more after.

I doubt anything in this fast moving technology is designed for a long
product life. Its basically cell phone technology that is driving the market
and they try to sell me a cell phone every two years.

I believe that unless I am unlucky the chips in my K3 will last longer than
I will.

However, I have never bought a rig before that had obsolete parts in it when
I opened the box.

But that is the way things are these days...

Ken
-- 
View this message in context: 
http://n2.nabble.com/K3-Obsolete--tp1485486p1487457.html
Sent from the [K3] mailing list archive at Nabble.com.

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] I apologize ... (:-(

2008-11-11 Thread Ken Kopp

I apologize for the duplicate posting 

OE sent automatically as I was editing the first one. (:-(

73! Ken Kopp - K0PP
 [EMAIL PROTECTED]
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] K3 #1755

2008-11-11 Thread Tom
My K3 is almost there. After building a new shack  I started the 
assembly.  This is my first and I am just at the power up point for the 
first time.
Man, Beads of sweat are coming down so I am packing it in for the night. 
And will observe for smoke in the a.m.


This kit has been the most fun and the rig is just beautiful.  It just 
goes together so well and feels solid.


I am sure I will be back with questions,  Wish me luck

Tom
kb1tom
Quincy, MA
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [K3] [Elecraft] K3 Obsolete?

2008-11-11 Thread Ken_ke2n

I believe that unless I am unlucky the chips in my K3 will last longer than I
will.


Let me re-phrase that. Unless my K3 is unlucky (gets struck by lightning) it
should last a long time.

I myself personally hope to last through a couple more new radios   :-)

-- 
View this message in context: 
http://n2.nabble.com/K3-Obsolete--tp1485486p1487729.html
Sent from the [K3] mailing list archive at Nabble.com.

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [Elecraft] K2 SSB Question

2008-11-11 Thread Jim Brown
On Fri, 07 Nov 2008 09:34:02 -0500, Don Wilhelm wrote:

Those are the pros and cons that I know about.

I'll add a few things.

1) The K2 with KSB2 is a bit low on transmit audio gain, so with 
some mics, you may not get as much processing as in some other 
rigs. 

2) The K2 with KSB2 has a bit more low frequency response than is 
ideal for agressive audio in a competitive situation. 

3) The K2 when adjusted for narrowband SSB reception aligns the RX 
filters to form a staggertuned IF, so the audio quality (on RX) 
is something that only the programmer's mother could love. 

These issues matter only if you're a contester or serious DX 
chaser. For more casual operation it doesn't matter much. There 
are mods for #1 and #2 that improve things significantly, and 
they're pretty easy to do. One of the more powerful solutions to #
1 involves cutting some circuit board traces. 

Bottom line -- the K2 and K2/100 are excellent CW rigs and good 
(but not great) SSB rigs. The KSB2 IS a good plug-in, and well 
worth doing, but don't expect it to be competitive in a serious 
contest. For other operation you'll be quite happy with it. 

73,

Jim Brown K9YC


___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [K3] [Elecraft] K3 Obsolete?

2008-11-11 Thread Mark Bayern
 it should be this one for the DSP

 http://focus.ti.com/docs/prod/folders/print/tms320vc33.html

That page _DOES_NOT_ say the chip is 'obsolete', it says 'Product is
Not Recommended for New Design'. Go ahead and do a text search on the
page, the word obsolete is not on the page. If you read to the bottom
of the page you see the 10K of chips in the pipeline, and you see a
recent update of distributor stock.

 However, I have never bought a rig before that had obsolete parts in it when
 I opened the box.

(Seems to me that most (all?) of the modern rigs I've bought had a
bunch of proprietary chips in them. Who can tell if they're obsolete?)

If this really bothers you I can think of two options: 1/buy a
YaeComWood, or 2/start your own company and design a competitor to the
K3. Competition is a good thing.

Mark  AD5SS




On Tue, Nov 11, 2008 at 5:25 PM, Ken_ke2n [EMAIL PROTECTED] wrote:

 oops  - I see I put in the wrong link (although one of the reply-ee's found
 it)

 it should be this one for the DSP

 http://focus.ti.com/docs/prod/folders/print/tms320vc33.html

 the D/A chip that I was referring to is the TI one too ...
 also tried to find the the TI D/A chip on Mouser and Digikey and got the
 obsolete designation as well.

 I am not surprised that there is a big batch of the TMS chips coming. That's
 what they do: announce upcoming obsolescence, get an idea of who wants how
 many and then make one final big batch and no more after.

 I doubt anything in this fast moving technology is designed for a long
 product life. Its basically cell phone technology that is driving the market
 and they try to sell me a cell phone every two years.

 I believe that unless I am unlucky the chips in my K3 will last longer than
 I will.

 However, I have never bought a rig before that had obsolete parts in it when
 I opened the box.

 But that is the way things are these days...

 Ken
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] [K3] Setting Filter Gain in KRX3

2008-11-11 Thread Roy Morris
I have installed the KFL3A-500 filter in slot #5 in both receivers.  When I set 
main receiver FL5 GN to 6 dB and go to B SET, the gain sounds about the same in 
the KRX3 as it does in the main receiver.  Since the dB setting cannot be seen 
in B SETdisplay, how do you know the gain settings are the same?  When the main 
receiver filter bandwidth, offset and gain are set  in CONFIG, does the 
corresponding KRX3 filter automatically get set to the same parameters 
regardless of filter slot used?  Maybe all this can be determined in K3 
UTILITY.  Any comments would be appreciated.  Roy Morris  W4WFB ___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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

Re: [K3] [Elecraft] K3 Obsolete?

2008-11-11 Thread Mike S

At 08:40 PM 11/11/2008, Mark Bayern wrote...

 it should be this one for the DSP

 http://focus.ti.com/docs/prod/folders/print/tms320vc33.html

That page _DOES_NOT_ say the chip is 'obsolete', it says 'Product is
Not Recommended for New Design'.


Same thing. You're obviously not familiar with semiconductor marketing, 
and how they spin things.


___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


RE: [Elecraft] [K3] Setting Filter Gain in KRX3

2008-11-11 Thread Dick Dievendorff
You can use the K3 Utility filter configuration tool to verify the filter
settings for both main and sub receiver.  From the K3 Utility's
Configuration tab, click Edit Crystal Filters and click on the Main /
Sub Receiver radio button at the bottom left of the dialog.

 

The main receiver filter settings are distinct from the sub receiver filter
settings.  Setting the main receiver's filters does not set the
configuration of the sub receiver filters.

 

I loaned my K3 to K7RI to get ready for Sweepstakes or I'd try to describe
how to view and set the sub receiver filter configuration from the K3's
front panel. I believe it can be done, I just can't verify the procedure.

 

Dick, K6KR

 

 

 

 

 

 

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Roy Morris
Sent: Tuesday, November 11, 2008 5:47 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] [K3] Setting Filter Gain in KRX3

 

I have installed the KFL3A-500 filter in slot #5 in both receivers.  When I
set main receiver FL5 GN to 6 dB and go to B SET, the gain sounds about the
same in the KRX3 as it does in the main receiver.  Since the dB setting
cannot be seen in B SETdisplay, how do you know the gain settings are the
same?  When the main receiver filter bandwidth, offset and gain are set  in
CONFIG, does the corresponding KRX3 filter automatically get set to the same
parameters regardless of filter slot used?  Maybe all this can be determined
in K3 UTILITY.  Any comments would be appreciated.  Roy Morris  W4WFB 

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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

RE: [Elecraft] Digital Mode

2008-11-11 Thread -.-. --.-N3TU -.-. --.-



Iain,

Thanks for the information and I will print this out and follow it. I need to 
get the cables.

Greg
Date: Mon, 10 Nov 2008 23:46:01 -0800
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: Re: [Elecraft] Digital Mode




Hi OM,


Long answer to a short question (and it's late, so apologies if any of

it doesn't make sense)...



To transmit in digital modes with HRD + DM780, you'll probably want to

connect the RS232 port on the K3 to a serial port on your PC, as well as

audio, but you can start of with receive-only with just an audio

connection from the line out of the K3 to the input on your computer's

sound card. A stereo audio cable with 3.5mm (1/8) jack plugs on both

ends will do.


Start up DM780 (not HRD) and see if you get noise (different colours) in

the waterfall at the bottom (with the K3 on, obviously). If not, maybe

you have more than one sound card. From the Tools menu, choose

Options, then click on the SoundCard tab, and choose the right

device and source (line in, mic - whatever you have connected to). You

may need to bring up Soundcard, from the View menu, and unmute the

RX device and set the volume.


When you get noise in the waterfall, tune to a digital mode frequency

(e.g. 14.070) and look for signals to decode. Choose the appropriate

mode (right above the waterfall) and then click on the waterfall where

you see a signal, and it should be decoded as text for you. I've never 

used Olivia, so can't help with specifics there, but you should be able

to find it in Modes. You could start off with BPSK31 or RTTY, as those

are more common.



When you want to transmit, you'll probably want to make the serial

connection for automatic keying of the radio. You may be able to do it

with VOX instead, but I haven't tried that. There are other benefits to

making the serial connection - you can see the actual frequency you're

using in the software, quickly QSY to saved frequencies, center the

signal you want with couple of mouse-clicks, etc.


If you don't have real serial ports, you'll need a USB-to-serial

adapter, like the KUSB.


The auto-find thing might work, but I prefer to do things explicitly.

First, on the K3, set CONFIG:RS232 to 38400 b. Then launch HRD.

Specify Elecraft, K3, the serial port that the K3 is connected to,

and speed 38400. If you're using a built-in serial port, it's probably

COM1 or COM2. If not, right-click on My Computer, choose Properties,

then Hardware then Device Manager, then double-click on Ports and

look for it there.


When HRD connects successfully, it should display the current VFO A and

B frequencies, amongst other things. You'll then need to start the IP

server. In HRD, to go Tools - IP Server, then check Start server

when HRD starts and click Start.


Now you can go back to DM780, and configure it to use HRD for keying the

radio. In its Tools menu, choose Options, then click on the PTT

tab, and select via Ham Radio Deluxe.


Then go to View - Radio, and click on Connect to HRD, if it's

not already displaying the current VFO A freqency.



Set the mode on the K3 to DATA, and set DATA MODE to DATA A (hold

the AFX button, then turn the VFO B knob to select that).



You'll need another 3.5mm stereo audio cable to connect the output from

your PC's sound card to the line in of the K3.


Set MENU:MIC SEL to Line in on the K3.



Now you're ready for a test transmission. Put the K3 into TX TEST mode

(hold MODE ^), then click on Send in DM780. Adjust MIC (line in

gain) on the K3 until you see 5 bars on the ALC meter. You may need to

adjust the Soundcard TX settings in HRD to get it right. Click

Stop to end, and turn off TX TEST mode.


Then you're all set up and ready for digital. Simple, huh?


 ~Iain / K6IAM






-.-. --.-N3TU -.-. --.- wrote:

 I'm new to digital. I just downloaded Digital Master 780 so I can run Olivia

 on MARS. Also included in that package is Ham Radio Deluxe. Never done thing

 before. I'm from old school so bear with me.  Right now, I don't have

 anything hooked to the sound card on the computer. How do you have your K3

 hooked up for digital? I know the plug type where the mic and headset are on

 the back of the computer but I need to know what to do on the back of the

 radio. I am assuming it is the mono/stero in/out on the back of the radio

 which takes the same plug on the back of the computer. Without the plugs

 right now, I get an red X error message on Ham Radio Deluxe that says:

 frequency =0   ! Make sure your radio is switched on and not in the memory

 mode !! If you are using a homemade-non standard cable you may need to

 select RTS or DTR.

 

 

 Now,  when I choose Elecraft and K3, the flow control/Interface power is in

 ghost form and can't be selected. I also used the auto find to find the com

 port. So I am guessing that I need the sound card hooked up for these two

 programs to work. I do get the packet cluster. I can't get the radio or

 anything else 

[K3] [Elecraft] more Obsolete?

2008-11-11 Thread Ken_ke2n

Ok - trying to retrace my steps on the internet search

the TMS is NRND - not obsolete (yet)

the TLV320ACC23 as indicated on the schematic was not found - I just
looked at the first few chips and THEY were all obsolete.

I am guessing that the schematic has a typo and the device is TLV320AIC23 

(K3 DSP IF: CODECS drawing 2004051101)
 
this part is also NRND, but not obsolete.

Sorry for the confusion - my lifetime buy comment was incorrect (applied
to a different part)

Ken  
 

I am not worried; my 25 year old ICOM with all its proprietary chips still
works. Check back with me on the K3 in, say, September of 2033 - I'll bet it
still works


-- 
View this message in context: 
http://n2.nabble.com/K3-Obsolete--tp1485486p1488045.html
Sent from the [K3] mailing list archive at Nabble.com.

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] K3 not keying PW-1 amp

2008-11-11 Thread John Gaynard
I finally unboxed my PW-1, after it's repair by ICOM, and plugged in the K3.
I connected the KEY-OUT to the SEND2 connection on my PW-1, connected the K3
to INPUT2, set the power down to 25w, powered up the ICOM PW-1, pushed in
AMP/PROTECT so it was GREEN,  the K3 is in CW VOX mode, keyed the K3, and
the PW-1 only reflected 25w output.  The PW-1 TRANSMIT light never lit up
which says I'm not keying the PW-1.  I have the K3 PW-1 negative ALC mod
installed, but did not connect it up to the PW-1.  I ran the PW-1 with the
K3 from last December, through June of this year, configured this same way
with no problems, 25w of drive will output around 1100w on 40m CW.  I don't
need the ALC mod but it is a nice safety net if I actually connect up the
ALC connection on the PW-1.  Last year, I had the ICOM756ProIII connected to
input 1and the ACC1 interface to the PW-1 was connected, which basically
supplies power to the PW-1 antenna switch when the amp is in the off
position.  The PW-1 Is in the INPUT12 position.  Does it make a difference
that there is no transceiver connected to INPUT1 and ACC1.  That is the only
real difference.  I know that there are a few (more than a few) K3 owners
with PW-1 amps.  I am probably doing something wrong but it sure isn't
obvious to me.  My firmware level is 2.38 on the K3.  I guess I could try
plugging into the Input 1, send 1 inputs on the PW-1 to see if that makes
any difference.  The PW-1 manual does not indicate that a transceiver has to
be connected to the input1 connections on the PW-1.

 

John K8WDN

K3 #157

 

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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

Re: [K3] [Elecraft] more Obsolete?

2008-11-11 Thread Vic K2VCO

Ken_ke2n wrote:

Ok - trying to retrace my steps on the internet search

the TMS is NRND - not obsolete (yet)


Probably the worst that could happen if a chip disappeared would be that
elecraft would have to design a new board with newer chips when the
supply of old boards/chips ran out.

Then Lyle or his grandson would have to make appropriate code changes
for it. The K3 Utility would (hopefully) detect the board level and load
the appropriate code.

Big deal!

--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [K3] [Elecraft] K3 Obsolete?

2008-11-11 Thread Bill W5WVO
Well, I just concluded eight-plus years as a senior tech writer at
a major Silicon Valley semiconductor manufacturer, so I know a
little about this phraseology. :-)

Not recommended for new designs means:

We've got a ton of this generation in the bins, so we'll keep
selling them to our big customers and distributors, if they really
want them, until we run out. And that's not going to happen any
time soon. But you know, this generation has always been a little
buggy; some things never quite worked the way we expected. We'll
continue to support it and all its errata and patches because we
have to, but really, we're just not very keen about it any more.
We've got a new, improved, more capable, more expensive generation
out there on the market already, and another two generations
beyond that are already in the development pipeline, so... well,
not to put too fine a point on it, you know, but we'd really
prefer that you buy our newer stuff. You'll find our support for
the new stuff to be much livelier and more enthusiastic.

Obsolete means:

Some of our distributors likely still have a lot of this old
stuff back in their warehouses, so you can still get it. Cheap!
And since nobody ever volunteers to go pawing through our public
website to weed out all the obsolete app notes, you can probably
still find stuff on it if you dig deep enough... But look, we're
not making it any more, and we've shut down all real-time tech
support for it. The engineers who designed it aren't even here
anymore. If you call, our guys won't even talk to you about it.
Basically, you're on your own. Sorry about that.

That's about the gist of it. :-)

Bill W5WVO


- Original Message - 
From: Mike S [EMAIL PROTECTED]
To: Mark Bayern [EMAIL PROTECTED]
Cc: Ken_ke2n [EMAIL PROTECTED]; elecraft@mailman.qth.net
Sent: Tuesday, November 11, 2008 6:49 PM
Subject: Re: [K3] [Elecraft] K3 Obsolete?


 At 08:40 PM 11/11/2008, Mark Bayern wrote...
   it should be this one for the DSP
  
   http://focus.ti.com/docs/prod/folders/print/tms320vc33.html
 
 That page _DOES_NOT_ say the chip is 'obsolete', it says
'Product is
 Not Recommended for New Design'.

 Same thing. You're obviously not familiar with semiconductor
marketing,
 and how they spin things.

 ___
 Elecraft mailing list
 Post to: Elecraft@mailman.qth.net
 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: Elecraft@mailman.qth.net
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


Re: [K3] [Elecraft] K3 Obsolete?

2008-11-11 Thread Mark Bayern
 Same thing. You're obviously not familiar with semiconductor marketing, and
 how they spin things.

No it is not.  It can also mean that they have a newer model that is
more cost effective, easier to build, faster, etc ...Eventually any
chip will be obsolete, but this only means what it says, 'not
recommended for new designs'.
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


Re: [K3] [Elecraft] K3 Obsolete?

2008-11-11 Thread Mike S

At 10:17 PM 11/11/2008, Mark Bayern wrote...
 Same thing. You're obviously not familiar with semiconductor 
marketing, and

 how they spin things.

No it is not.


Obsolete - Outmoded in design, style, or construction.

QED.

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] [K3] Setting Filter Gain in KRX3

2008-11-11 Thread Roy Morris
I had a senior moment when I asked the question about accessing parameters in 
the KRX3.  I forgot to turn on the KRX3 by pushing the SUB button.  Please 
excuse me.  Roy Morris  W4WFB___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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

RE: [Elecraft] [K3] Setting Filter Gain in KRX3

2008-11-11 Thread Joe Subich, W4TV


 I loaned my K3 to K7RI to get ready for Sweepstakes or I'd 
 try to describe how to view and set the sub receiver filter 
 configuration from the K3's front panel. I believe it can be 
 done, I just can't verify the procedure.

 Enter the CONFIG menu ...  
 Select FLx GN 
 Press SUB (display will change to SUB # db) 
 Adjust gain as needed 
 Press SUB (display will change to rF # db)  

 SUB designates KRX3 settings, rF designates KRX3 settings  

73, 

   ... Joe, W4TV 
 


 -Original Message-
 From: [EMAIL PROTECTED] 
 [mailto:[EMAIL PROTECTED] On Behalf Of Dick 
 Dievendorff
 Sent: Tuesday, November 11, 2008 9:18 PM
 To: 'Roy Morris'; elecraft@mailman.qth.net
 Subject: RE: [Elecraft] [K3] Setting Filter Gain in KRX3
 
 
 You can use the K3 Utility filter configuration tool to 
 verify the filter settings for both main and sub receiver.  
 From the K3 Utility's Configuration tab, click Edit 
 Crystal Filters and click on the Main / Sub Receiver radio 
 button at the bottom left of the dialog.
  
 The main receiver filter settings are distinct from the sub 
 receiver filter settings.  Setting the main receiver's 
 filters does not set the configuration of the sub receiver filters.
  
 I loaned my K3 to K7RI to get ready for Sweepstakes or I'd 
 try to describe how to view and set the sub receiver filter 
 configuration from the K3's front panel. I believe it can be 
 done, I just can't verify the procedure.
  
 Dick, K6KR
  
  
  
  
  
  
 From: [EMAIL PROTECTED] 
 [mailto:[EMAIL PROTECTED] On Behalf Of Roy Morris
 Sent: Tuesday, November 11, 2008 5:47 PM
 To: elecraft@mailman.qth.net
 Subject: [Elecraft] [K3] Setting Filter Gain in KRX3
  
 I have installed the KFL3A-500 filter in slot #5 in both 
 receivers.  When I set main receiver FL5 GN to 6 dB and go to 
 B SET, the gain sounds about the same in the KRX3 as it does 
 in the main receiver.  Since the dB setting cannot be seen in 
 B SETdisplay, how do you know the gain settings are the same? 
  When the main receiver filter bandwidth, offset and gain are 
 set  in CONFIG, does the corresponding KRX3 filter 
 automatically get set to the same parameters regardless of 
 filter slot used?  Maybe all this can be determined in K3 
 UTILITY.  Any comments would be appreciated.  Roy Morris  W4WFB 
 

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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


RE: dB Gain -- was RE: [K3] [Elecraft] FLx GN Adding Db gain

2008-11-11 Thread Jim Brown
Lots of questions. See some answers interspersed. 

On Tue, 11 Nov 2008 18:22:50 -0800, Dick Dievendorff wrote:

I think I usually get that right (along with kHz), but I get confused when I
see dBi, dBm, seemingly dBx for all X.  I presume it's a measure of loudness
relative to X, so a dBi is gain relative to an isotropic radiator, and dBw
is what with watts?  

All dB is relative -- that is, A is x dB louder or quieter than B. 

And is a dB of voltage equivalent to a dB of power or an audio dB of
loudness?   

The equation for ALL dB numbers is dB = 20 log (V1/V2) or 10 log (P1/P2), 
where V is voltage and P is power. When you append a letter to it, the letter 
defines some reference condition that could be voltage, power in some 
impedance, acoustic loudness, etc. MANY references have been defined. dBm 
indicates dB referenced to 1 mW. dBmV is dB referenced to 1 mV. dBu indicates 
a reference to 0.78V  dBV is referenced to 1 volt.  

 What is a VU meter measuring?  Voltage?

It's actually measuring power if it's a true VU meter. 0VU is 1 mW in 600 
ohms, and a VU meter has a carefully defined dynamic characteristic -- that 
is, the meter movement has its ballistic characteristics defined so that it 
indicates subjective loudness -- sort of. The standard for the VU meter goes 
back to the early days of broadcasting. VERY few modern meters calibrated in 
VU actually have this characteristic, which isn't cheap to build. AND -- most 
VU meters are calibrated so that a reading of 0 dB is +4VU or +8VU. Not only 
that, but a true VU meter includes rectifiers that combine with the 
ballistics to do a lot of smoothing so that they are reading the average 
power. Actual peaks of audio are typically 10-14 dB hotter than the indicated 
reading. Are you confused yet?  :) 

And why are our ears logarithmic anyway?

That's the way God made us. 

And every time I see a recording studio meter in a movie or TV clip, it's
seemingly always dancing to the pin, way over into the red.  Why do they do
that?  

Broadcasters have long been in an eternal search for loudness. If the meter 
moves below the red there isn't enough processing, and someone is going to 
get fired. :) 

What does the red mean? 

In today's world, not much, because broadcast stations, like hams, use LOTS 
of signal processing -- compression, peak limiting, and other tricks -- that 
prevent those peaks from being much greater than the average voltage. If 
there were no processing, the red range of the meter would indicate that the 
waveform was getting close to clipping on peaks. 

73,

Jim K9YC


___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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] New K3

2008-11-11 Thread Tomy
Expect delivery of a new K3 on Thursday Nov 13.

73! Tomy Ivan kf7gc
ATEN,Arizona Traffic and Emergency Net
Most active NTS Traffic Net in Arizona
www.atenaz.net
Get back to Ham Radio Basics!
Join a First Class Traffic Net
Meets 3986 kHz Daily at 6:30:PM MST/0130Z
Radiogram and NTS Training Fridays after Net
Arizona Section Traffic Manager
ATEN Net Manager, Net Control Station 
Official Relay Station
Member ARRL, WRRL 157
928-636-7782
[EMAIL PROTECTED]___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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