[Elecraft] K3, smd and spectral display

[Benny Aumala]

Those who will absolutely solder surface mounted components,
can do it by building "v6 SoftRock lite" kit  (11$ )
and using it as a Panadaptor. 3 different softwares are free.
K3 has a buffered output before roofing filter just for something like this.
Goes anywhere:  SoftRock dimensions are 1,5 x 1,5 ".
Write to Tony Parks, KB9YIG,  [EMAIL PROTECTED]
If you will use it with K3, ask Tony to send 11 MHz Xtal with the kit.

PC and soundcard (100$) are normally on the station already.
What a chance! What a price! What an experience!

Spectral display on the PC-screen should find place with logging program
and maybe DX-monitor.

Benny OH9NB

___
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] SMT & Possible K1 Filter Board Combinations

[Michael B]

I just finished building my K1 and haven't gotten to use it because I have

to learn code. What if you were to go all DSP and DDS, you could put in even
Higher bands ie 6 meters, 2 meters, Maybe even 440. With that if you did
some modulating with the DSP you could do even differnt modes ie SSB, SSTV,
FSK, Digital, Packet, ect. (thats my theory at least)





--
W2CVZ,
Michael
___
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 Repairs at home

[J F]

After perusing a number of photos of the K3, I am
curious if certain spare parts would be available for
repairs at home. 

The 1N5711 diodes (if that's what is being used) in
the bridge circuits come to mind. I hope that I've
eliminated the possibility of those getting zapped (as
in my K2), but it would be nice to have them on hand
just in case.

I imagine they are SM devices. I would feel
comfortable working on them. From the looks of the
board layout, the only thing I might need hand holding
on would be the control/DSP board(s)(my nomenclature).
Although I suspect one should never need to make
repairs on it. Modifications may be another story, but
is purely speculative at this juncture...

Still curious about the internal clock an the ability
to directly sync it with WWV or other OTA time source.

73,
Julius
n2wn 
___
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] KAT100

[KA0CT]

I am looking for a KAT 100 for my K2 anyone have an extra one for sale?

73's
Craig Turner KAØCT
PO Box 5766
Woodland Park, CO 80866

719-661-5695
___
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 and spectral display

[Bill Tippett]

OH9NB:

>3 different softwares are free.
K3 has a buffered output before roofing filter
just for something like this.

Benny, just for the record, there are now
5 SDR programs available (see below), not just 3
as you mentioned above.  BTW, does anyone know
the bandwidth of the K3's buffered IF output?

73,  Bill  W4ZV

Flex Software
< http://www.flex-radio.com/ >

Rocky Software
< http://www.dxatlas.com/rocky/ >

KGKSDR Software
< http://www.m0kgk.co.uk/sdr/index.php >

SDRadio Software
< 
http://digilander.libero.it/i2phd/sdradio/index.html  
>


Winrad Software
< 
http://digilander.libero.it/i2phd/winrad/index.html  
>


For more complete info on Softrock40 see here:

http://groups.yahoo.com/group/softrock40/message/7846





___
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] SDR - K3 - and GUI Interface

[Lee Buller]

 
   
  Brian Lloyd and others have claimed that if you had an SDR radio with knobs 
and switches you would have a K3.  Yes, to a certain extent that is true...but 
the K3 and SDR radio as developed by Flex Radio are two different radios 
because of the technology used.
   
  I won't bore you with the detailsbut I would recommend everyone read the 
four part series on the idea of detection on the SDR-1000.  Now, I am not 
championing the Flex Radio stuff, but the technology is rather forward 
thinking.  I find it very educational.
   
  Yes, both radios use mixing and signal injection, but that is where things 
change.  The technlogy for Flex Radio (I do not want to call it an SDR Radio 
because the technology they use for detection could be used in a tradition 
radio) is different that most radios.  I do not want to call it unique because 
I am not sure that it is one of a kind.
   
  We need to make the distinction of what we are talking about here.  Yes, the 
K3 can be defined as an SDR as well as the K2, the 756PROs, and a host of other 
rigs that use microprocessors.  But, in the wholeI would venture to say 
that the Flex Radio system uses a totally different approach to detection and 
should be defined by its internal technology as well as its software 
guts...which is then delivered to the user through its GUI interface.
   
  We need to hone the definition of a SDR radio.
  We need to hone the definition of User Interface
  We need to look under the hood to see the technology and how that impacts 
performance
   
  Just some thoughts rumbling around the cavity
   
  Lee - K0WA
   
   


In our day and age it seems that Common Sense is in short supply.  If you don't 
have any Common Sense - get some Common Sense and use it.  If you can't find 
any Common Sense, ask for help from somebody who has some Common Sense.  Is 
Common Sense devine?
___
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 - 60M split

[N2TK, Tony]

I realize the K3 works on 60M. Will it work split on 60M so that USA
stations can listen on non-standard USA frequencies to work DX and vs. versa
for DX?
I haven't been able to do this with my K2. Is that due to operator problems?
If so, how can I do that?

As an example I would like to listen on 5395.0 and transmit on 5371.5.

73,
N2TK, Tony

___
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 SMT kits

[J F]

I would be interested in SMT kits from Elecraft.

AmQRP.org is looking at offering upgrade boards for
the micro908 two ways. One will have the fine pitch
devices installed, all the kit builder would need to
solder would be caps, resistors connectors, etc. The
other option would be a full kit, more of a challenge,
but still workable for many. Probably wouldn't be much
fun if you're vision challenged or have the shakes or
have inquisitive pets ;o)

I would suggest that the kits are not as frightening
as one might think. The micro908 is a complicated
piece of equipment, but after the first couple
components I found that SM construction was fun.

There are plenty of free obsolete computer boards
available to practice your soldering technique on
before diving into a kit.

Cheers,
Julius
n2wn 
___
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 #6100 is alive!

[Greg Derda]

My XYL wasn't quite as excited about this as I had hoped, so I've got 
to tell someone  ;-)


I wired my TenTec 701, and the mic header, last night, and made my 
first contacts with K2 #6100.  The first, from my QTH in North Georgia, 
was using 8w on 10m, to Pennsylvania - the band was up and down and we 
each exchanged only 5-3 reports.  The second was much more exciting, 
and marks (to me) the point at which I consider the radio "complete."  
I used 8w to break into a small DX pileup on 20m, and Carlos (I can't 
think of his call), in Costa Rica, gave me a 5-7 report, and 
voluntarily added that I had "great audio"!  My antenna was a 125' 
doublet at 50', fed with 600-ohm open feed and an MFJ-949E.


Although I plan to add a KPA100 and KDSP2 next, I have decided that I 
don't need to be in a hurry.  I am looking forward to learning what all 
I can do with this radio on low power, and the received signals are so 
strong that noise is not an issue at this time - What's amazing is that 
I find myself using the Attenuator regularly!!


Thanks to all for the great replies to my earlier newbie questions!!

73,
Greg
KI4MMM

___
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] SDR - K3 - and GUI Interface

[Bill Tippett]

K0WA:

>I do not want to call it an SDR Radio because the technology they 
use for detection could be used in a tradition radio) is different 
that most radios.  I do not want to call it unique because I am not 
sure that it is one of a kind.


>We need to look under the hood to see the technology and how that 
impacts performance


Excellent post Lee!  The Quadrature Sampling Detector
(QSD) scheme used by Flex Radio is not unique to them.  In
fact the $11 Softrock40 uses the same type of detector.

QSD has some advantages and disadvantages over the
traditional down-conversion superhet scheme used in K3,
Orion, and most of our older tube rigs like the Drake R4C.

Advantages:

1.  Exceptional IMD performance.  Limited by the sound
card's dynamic range on the output of the QSD...typically
100-105 dB which is ~10 dB better than the best superhets
(of course I believe this becomes somewhat academic due
to transmitted phase noise and key clicks...even for rigs
with 95 dB IMD like Orion and K3).

2.  Wideband spectral display (now up to 192 kHz with the
best of today's sound cards) with exceptional resolution
and dynamic range compared to traditional spectral displays.

Disadvantages:

1.  Computer GUI only (i.e. few knobs, etc).

2.  Mediocre BDR performance (110-120 dB).  Again limited
by the sound card's dynamic range, but here it is 20-30 dB
worse than the best superhets like K3 (preliminary results
showing 143 dB).  BDR is important if you are trying to
copy weak signals in the presence of other strong local
signals on the same band, such as you might encounter in
Field Day, duplex single-op contest operation on one band
or in other multi-transmitter environments like contests or
DXpeditions.

The beauty of a hybrid approach (e.g. K3 plus Softrock
QSD plus free SDR software) is that you can have the best of
both worlds.  Powerful SDR software plus a wide spectral
display without sacrificing a user-friendly human interface
and BDR performance.  This will be very interesting to watch
but I suspect the K3 may significantly impact SDR rigs once
people fully understand what is possible with K3.  I believe
it will be much easier (i.e. less expensive) for the K3 to
offer SDR capabilities than vice versa.  Time will tell.

73,  Bill  W4ZV







___
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] SDR-K3 and GUI Interface

[F5vjc]

Interesting discussion...I've ordered a Softrock Lite from Jack to use
as a Panadapter with my K3,  when I get it.
Would anyone care to mention a suitable soundcard for my PC or what to look for?
--
73, Deni

F5VJC
___
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] SDR-K3 and GUI Interface

[Bill Tippett]

F5VJC:
>Would anyone care to mention a suitable soundcard for my PC or what 
to look for?


For ~100 dB dynamic range, you probably want the Delta 44 sound card.
Flex now recommends the Edirol 66 but the Delta 44 is less expensive
and will be OK for ~100 dB dynamic range.

http://www.flex-radio.com/Products.aspx?topic=sdr1k_accessories (scroll down)

May 2007 QST had a nice review of sound cards here:

http://www2.arrl.org/members-only/prodrev/pdf/pr0705.pdf

For a less expensive alternatives, older cards that
Flex once supported were SoundBlaster Audigy2
ZS, Audigy2, Extigy, MP3+ and the Turtle Beach Santa
Cruz.  Probably several of these are available used
for low cost on eBay.  But remember that your sound
card is the determining factor for dynamic range and
display bandwidth.

73,  Bill  W4ZV

___
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 #6100 is alive!

[Gary D Krause]

Congratulations Greg!  I'm working on #6113.  It sounds like you have 
installed the SSB board as well.  I also have the SSB board to install but, I 
think I will wait to see how it works on CW first after I have finished the 
rig.  Have fun and I hope to work you on the air!


Gary, N7HTS


On Wed, 23 May 2007 09:47:43 -0400
 Greg Derda <[EMAIL PROTECTED]> wrote:
My XYL wasn't quite as excited about this as I had hoped, so I've got to 
tell someone  ;-)


I wired my TenTec 701, and the mic header, last night, and made my first 
contacts with K2 #6100.  The first, from my QTH in North Georgia, was using 
8w on 10m, to Pennsylvania - the band was up and down and we each exchanged 
only 5-3 reports.  The second was much more exciting, and marks (to me) the 
point at which I consider the radio "complete."  I used 8w to break into a 
small DX pileup on 20m, and Carlos (I can't think of his call), in Costa 
Rica, gave me a 5-7 report, and voluntarily added that I had "great audio"! 
My antenna was a 125' doublet at 50', fed with 600-ohm open feed and an 
MFJ-949E.


Although I plan to add a KPA100 and KDSP2 next, I have decided that I don't 
need to be in a hurry.  I am looking forward to learning what all I can do 
with this radio on low power, and the received signals are so strong that 
noise is not an issue at this time - What's amazing is that I find myself 
using the Attenuator regularly!!


Thanks to all for the great replies to my earlier newbie questions!!

73,
Greg
KI4MMM

___
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] SDR - K3 - and GUI Interface

[lyle johnson]

 Brian Lloyd and others have claimed that if you had an SDR radio with knobs 
and switches you would have a K3.  Yes, to a certain extent that is 
true...but the K3 and SDR radio as developed by Flex Radio are two different 
radios because of the technology used.


The FLex architecture uses input lowp[ass filters to suppress harmonic 
respones from the mixer (QSD or ISD depending on the model).  The QSD or ISD 
implements a bandpass filter function of a few hundred kHz width.  The output 
is passed to the ADC and then on to the DSP (done in the PC).  This is 
*effectively* the same as using a "roofing filter" of a few hundred kHz width. 
You need an incredibly good ADC to cope with all that.


The K3 uses roofing filters from 13 kHz or so down to 200 hz or so.  The ADC 
is thus exposed to far fewer signals than the Flex.  Both radios use similar 
performance ADCs.


When you want to listen to a weak signal and a huge signal (capable of 
over-ranging the ADC) is nearby, the filtering (and linearity) before the ADC 
is going to make the difference.  You either filter the signal before the ADC 
(to maintain gain to hear the weak signal), or you reduce the gain of the 
signal chain before the ADC (to protect the ADC from over-ranging).  In the 
first case, you have a better chance of hearing the weak signal than in the 
second case.


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

[Elecraft] K3, smd and spectral display

[Sverre Holm]

Benny Aumala wrote:

> "v6 SoftRock lite" kit ...
> If you will use it with K3, ask Tony to send 11 MHz Xtal with the kit.

Benny,

I don't quite understand the X-tal frequency of 11 MHz. My impression is
that the Softrock needs a crystal which is 4 x the center frequency, i.e. in
the order of 4 x 8.215 MHz or 32.86 MHz for the K3. What am I missing here?


73

Sverre
LA3ZA

Unofficial Guide to K2 Modifications
http://www.qslnet.de/member/la3za/K2/mod.html







-- 
I am using the free version of SPAMfighter for private users.
It has removed 15986 spam emails to date.
Paying users do not have this message in their emails.
Get the free SPAMfighter here: http://www.spamfighter.com/len

___
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 noise blanking

[Robert Tellefsen]

Have any of the Field Testers with working K3s had a chance to
look at the combined performance of the hardware (firmware?)
and DSP noise blanking abilities to suppress key clicks from
other stations?

During some contests, that would sure be handy.

Thanks and 73
Bob N6WG
___
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] SDR-K3 and GUI Interface

[dj7mgq]

The best card I've ever worked with is the LynxTWO, but it is very, very
expensive. 

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] RE:KNB2

[David N.]

Well after following Dons directions about Q21 I found

That the noise blanker worked so I tried the test
again
Well still no effect for giggles I turned on the
preamp and the noise blanker worked after shutting off
the preamp the noiseblanker continued to work.
So I guess a certain amount of signal is required to
trigger it. I normally do not run the preamp. 
And by the way the preamp does work as advertised 
So my next questions is what else do I need to do to
correct having to turn on the preamp to get the KNB2
to kick in?
Thanks
David KR4OW


   
Ready
 for the edge of your seat? 
Check out tonight's top picks on Yahoo! TV. 
http://tv.yahoo.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 - 60M split

[vze3v8dt]

I've only used 60m a couple of times with my K2, seemed to work okay, but I've 
never tried the split channel operation you suggest.  I've set up several 
memory channels for the 60m frequencies, that way I don't have to remember what 
they are.  I would think it would be simple enough for me to recall one of the 
memory channels into VFO A and then recall a second into VFO B, then enable 
split.  You may be right that it doesn't allow this to happen on 60m, I'm just 
hypothesizing a way to do this.  

I would think it was even easier with the K3 since there is a sub-receiver.

Mark, NK8Q


>From: "N2TK, Tony" <[EMAIL PROTECTED]>
>Date: 2007/05/23 Wed AM 08:35:02 CDT
>To: Elecraft@mailman.qth.net
>Subject: [Elecraft] K3 - 60M split

>
>I realize the K3 works on 60M. Will it work split on 60M so that USA
>stations can listen on non-standard USA frequencies to work DX and vs. versa
>for DX?
>I haven't been able to do this with my K2. Is that due to operator problems?
>If so, how can I do that?
>
>As an example I would like to listen on 5395.0 and transmit on 5371.5.
>
>73,
>N2TK, Tony
>
>___
>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 + SDR40 as panadapter

[W2AGN]

I have an old (original) SDR-40 receiver. I had thought of replacing the crystal 
with 8215 to use as panadapter. Then someone said that wouldn't work because of 
spurious from the SDR-40. Now I see other crystal frequencies discussed.


Anyone got the straight scoop on this? Would sure be a cheap panoramic display.
--
---
  _____
 / \  / \  / \  / \  / \   John L. Sielke
( W )( 2 )( A )( G )( N )  http://w2agn.net
 \_/  \_/  \_/  \_/  \_/   http://www.blurty.com/users/w2agn
check out: http://groups.yahoo.com/group/QRPariahs/
___
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] RE:KNB2

[Don Wilhelm]

David,

Yes, the KNB2 does have a threshold level - anything below that level 
will not trigger it.  There are two threshold levels available from the 
front panel (Hi and Lo).  You could dig into the KNB2 circuit and lower 
the threshold if you really find it advantageous, but turning on the 
preamp may help (and will indirectly provide 4 levels of NB threshold).


Make your judgment about which is best according to your noise source. 
Remember that the KNB2 works best with impulse noise (like gasoline 
engine ignition), and will not do much for a constant 'popcorn' noise or 
atmospherics - the DSP noise reduction is best for those kind of noises.


73,
Don W3FPR

David N. wrote:

Well after following Dons directions about Q21 I found

That the noise blanker worked so I tried the test
again
Well still no effect for giggles I turned on the
preamp and the noise blanker worked after shutting off
the preamp the noiseblanker continued to work.
So I guess a certain amount of signal is required to
trigger it. I normally do not run the preamp. 
And by the way the preamp does work as advertised 
So my next questions is what else do I need to do to

correct having to turn on the preamp to get the KNB2
to kick in?
Thanks
David KR4OW

___
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] Receiving and demodulation

[lyle johnson]

One of the interesting features of the K3 is that PSK31 and RTTY  operation 
are part of the radio. Does that mean that the PSK31 and  RTTY demodulators 
in the K3 control the AGC so that the desired  signal and only the desired 
signal controls AGC?


The use of an SSB bandwidth "waterfall" display for PSK31 is a great example 
of using the wrong filter for the job, at least after you've established the 
QSO.  The Rx AGC gets pumped by strong signals inside the "roofing filter" 
bandwidth, as you've observed.


On the K3, when I am copying a PSK31 signal, I spin the selectivity right down 
to 50 Hz.  Then, the PSK31 signjal I am copuying is the only one inside the 
fitler bandwidth, and is the one driving the AGC.


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

[Elecraft] T1 PWR/TUNE button

[Kurt Loken]

Hello All,
 
For quite some time I have been having difficulty getting my T1 to go into Tune 
mode.  When I press the button and hold it, it will often just go into PWR 
mode.  I usually have to try the button numerous times before it will go into 
tune mode...it definitely wasn't this bad when I first built it.  I did re-flow 
the solder on the switch connectors in the past, but it didnt' help.  So do you 
think I have a bad switch...or is there something else I should be looking for 
as the cause?
 
Thanks,
 
Kurt - ae6uj


 

The fish are biting. 
Get more visitors on your site using Yahoo! Search Marketing.
http://searchmarketing.yahoo.com/arp/sponsoredsearch_v2.php
___
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 #6100 is alive!

[Gary D Krause]

I'm glad to hear everything went well with your build.  I'm almost ready to 
start winding the toroids.  I've had a little practice since I built the SSB 
board last weekend while waiting for a part to come from Elecraft.  Those guys 
are great for getting things to you fast.  Those toroids are pretty close to 
the crystals on the SSB board and I'll probably put some electrical tape 
between them just to make sure they don't touch.  I work mostly CW so getting 
the SSB board in there right away isn't a priority for me but, it is nice to 
have because, I do like to work SSB too.


Gary, N7HTS


On Wed, 23 May 2007 11:25:38 -0400
 Greg Derda <[EMAIL PROTECTED]> wrote:

Gary,

Yep, the SSB board had to go in as part of my basic build, because I am a 
no-code General ;-).  I really, really want to learn code and experience that 
world.  My build went very well until right at the last moment - all of a 
sudden my receiver was greatly attenuated.  With the help of a fellow 
Elecrafter (a builder for hire that was guiding me via email), we determined 
that the very last thing I did, which was to install the two very tiny 
toroids, was the culprit.  Mine were touching the crystal cans, and simply 
moving them away a hair fixed everything.


Also, I did the N-Gen/Spectrogram alignment, but everything was so close to 
being right using the default settings in the manual that I don't think I'd 
recognized the difference.


73,
Greg
ki4mmm

On May 23, 2007, at 10:44 AM, Gary D Krause wrote:

Congratulations Greg!  I'm working on #6113.  It sounds like you have 
installed the SSB board as well.  I also have the SSB board to install 
but, I think I will wait to see how it works on CW first after I have 
finished the rig.  Have fun and I hope to work you on the air!


Gary, N7HTS


On Wed, 23 May 2007 09:47:43 -0400
 Greg Derda <[EMAIL PROTECTED]> wrote:
My XYL wasn't quite as excited about this as I had hoped, so I've got 
to tell someone  ;-)
I wired my TenTec 701, and the mic header, last night, and made my 
first contacts with K2 #6100.  The first, from my QTH in North 
Georgia, was using 8w on 10m, to Pennsylvania - the band was up and 
down and we each exchanged only 5-3 reports.  The second was much 
more exciting, and marks (to me) the point at which I consider the 
radio "complete."  I used 8w to break into a small DX pileup on 20m, 
and Carlos (I can't think of his call), in Costa Rica, gave me a 5-7 
report, and voluntarily added that I had "great audio"! My antenna 
was a 125' doublet at 50', fed with 600-ohm open feed and an 
MFJ-949E.
Although I plan to add a KPA100 and KDSP2 next, I have decided that I 
don't need to be in a hurry.  I am looking forward to learning what 
all I can do with this radio on low power, and the received signals 
are so strong that noise is not an issue at this time - What's 
amazing is that I find myself using the Attenuator regularly!!

Thanks to all for the great replies to my earlier newbie questions!!
73,
Greg
KI4MMM
___
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/elecraftHelp: 
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 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 Questions, some will be answered over time.

[Don Rasmussen]

1. Why didn't Elecraft hire a marketing consultant to
cost the K3 using prices ranging from $2499 to $8000? 

Don't they know that:
 a.) A higher price adds to ownership status and
 b.) They'd still be competitive??? 
I am upset that I purchased a lower priced radio than
I can afford and Elecraft has some explaining to do.
How smart is that? 

2. Would having a weak sister second receiver lower
your contest score as compared to competitors that
have 2 good ones?

3. Are the other manufacturers upset, enough so that
they might update their designs or would they start a
new marketing campaign or series of ads in QST for
their existing gear?

4. How many times is it acceptable for your contest
radio to lock up in a 24 hour period? 

5. How often is it a satisfactory solution that
someone would do a "master reset" if their radio was
behaving oddly over a period of days or weeks. 

6. How is it possible for K3 to be ready to operate in
seconds when the others need 20 times longer to
calibrate the DSP? Is my DSP running uncalibrated?

7. How can a radio that is announced just before
Dayton have a working model there (not one under
glass) and planned production units in a matter of
weeks after introduction? 

Enquiring minds…

___
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] wtb

[jpgabbard]

Still looking for that non-working or unfinished K2.(cw version only).
  thanks, john  kf7om
___
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] Problems

[William M. Spaulding, SR]

Hi All,

My K2 project has two snags.  The first is the optical encoder.  When turning 
the encoder shaft, it appears to be battling with "Lock" to see who will 
control the frequency.  Lock always wins, although if you turn fast enough, you 
can get one or two changes in the lsb.  The remainder of the front panel seems 
to work well.  Can someone shed some light on this problem?

The second battle is somewhere in the PLL.  I get a signal at TP1.  TP2 has 
nothing but a lot of noise that you would expect if the loop is not locking 
properly.  These are sticky wickets, and I sure could use help.

Thanks for any help,

Bill
NA7Y
___
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] Can the K2 be used as a SWL AM radio?

[Rob Lundahl]

Question for the group.

Can the K2 also be used as a SWL AM radio? What SWL bands can you receive on
the standard K2?

Yes - I admit it. I have been reading the mail and am now considering a K2
since I run on solar
power and batteries.

Thanks in advance;
NV7F
___
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] SMT & Possible K1 Filter Board Combinations

[Sandy]

I'd just like to see an all band RF card available for the K1 for 160-15 at 
least.  Maybe even thru 10 meters?  Is the enough for an "l" shaped PCB for 
all band RF card?  Mioght be possible with SMD stuff.


73,

Sandy W5TVW
- Original Message - 
From: "Doug Person" <[EMAIL PROTECTED]>

Cc: 
Sent: Tuesday, May 22, 2007 7:56 PM
Subject: Re: [Elecraft] SMT & Possible K1 Filter Board Combinations


Based on the apparent success of the K3, the future may hold many 
tantalizing prospects.  Perhaps a similar SMT approach to the K1 might 
manifest itself as a K1A with full 80 (or even 160?) to 10 coverage. 
Personally, I would love to see a 5 or 10 watt multiband SSB and digital 
mode transceiver kit about the same size as the K1.  But, there are many 
possibilities.  I would imagine one of the big issues for Wayne and Eric 
is to carefully (and understandably) control the size and growth of their 
company.


73, Doug -- K0DXV

Robert Brown wrote:

Spoke with Lisa just before Dayton to place my order
for a K3/10 (from the second production run - wonder
when that one will close out?) and was thinking, now
that Elecraft has embraced SMT in its kits, would
there be any interest if Elecraft were to come out
with a 5 or 6 band board for the K1 - to include 80
meters?  One would think that a "plug and play" K1
filter board would be reasonably easy to support -
while extending the attractiveness of the K1 (which
KE6US has rightly noted, somehow still stands out).
Needless to say, possible K1 product changes are
probably one of the last things on the minds of Eric,
Wayne et al. at this particular time, but Elecraft's
embrace of SMT opens up some new (and previously
inconceivable) possibilities.  ;)

Bob Brown
N1CVX

K2 4663
K1 2054
KX1 874
K3  ???




Looking for earth-friendly autos? Browse Top Cars by "Green Rating" at 
Yahoo! Autos' Green Center.

http://autos.yahoo.com/green_center/
___
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



--
No virus found in this incoming message.
Checked by AVG Free Edition. Version: 7.5.467 / Virus Database: 
269.7.6/814 - Release Date: 5/21/2007 2:01 PM





___
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] Being ESD Safe

[Koaps]

Hello all,

I just ordered a KX-1 lastnight and I have bought a
weller wes51 solder station and cutters which are ESD
safe.

My question is, how do I make myself ESD safe?

In the KX-1 manual it says, 

"Wear a conductive wrist strap with a series 1 megohm
resistor."

I have a wrist strap, I can get a 1 megohm resistor,
but what do I connect it to? The PCB board? A wire
going out my window to the ground?

I really don't want to shock any components, so I want
to be very careful about ESD and take the best course
to prevent it.

Thanks all,
-Chris


 

The fish are biting. 
Get more visitors on your site using Yahoo! Search Marketing.
http://searchmarketing.yahoo.com/arp/sponsoredsearch_v2.php
___
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] Being ESD Safe

[Dan KB6NU]

My wrist strap terminates in a banana plug, which I connect to the  
earth ground terminal of my Heathkit lab power supply.


73!

Dan KB6NU
--
CW Geek and MI Affiliated Club Coordinator
Read my ham radio blog at www.kb6nu.com
LET'S GET MORE KIDS INTO HAM RADIO!



On May 23, 2007, at 3:24 PM, Koaps wrote:


Hello all,

I just ordered a KX-1 lastnight and I have bought a
weller wes51 solder station and cutters which are ESD
safe.

My question is, how do I make myself ESD safe?

In the KX-1 manual it says,

"Wear a conductive wrist strap with a series 1 megohm
resistor."

I have a wrist strap, I can get a 1 megohm resistor,
but what do I connect it to? The PCB board? A wire
going out my window to the ground?

I really don't want to shock any components, so I want
to be very careful about ESD and take the best course
to prevent it.

Thanks all,
-Chris


___
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] Being ESD Safe

[Ron D'Eau Claire]

Connect it to the mains ground, just like your Weller soldering station. 

Wrist straps designed for ESD protection have a 1 Meg resistor built it.
It's easy to check with your DMM. The warning is there in case someone
homebrews a strap. It works very well without the resistor too, too well if
you should touch a live circuit with the other hand so the current passes
through your body where it could kill you. That's why the resistor. It
limits the current to a safe value while still draining off any static fast
enough to protect sensitive components. 

Optionally, touching a bare, metal ground regularly just before handling a
sensitive part works fine too. The advantage of the strap is you only have
to remember to put it on. Be aware that squirming on your cloth seat or
shuffling your feet on the carpet under your chair can produce a big static
charge quickly. If using the touch-the-ground method, touch it often and sit
still after doing it! 

Other things to be aware of:

1) Do not use any Styrofoam or other plastic containers to hold parts. They
are very efficient static generators which can damage parts even though you
are grounded. (The pink plastic bags many parts come in have a slightly
conductive film on the surface to protect the parts inside. The important
thing is that the voltage across the leads of a sensitive part never exceed
a few volts - their normal range. So even if you pick up one of those bags
with a huge static charge on your body, you won't do any damage as long as
everything is inside the bag. The black foam some parts have their leads
stuck into does the same thing. It's slightly conductive so the leads of the
device are at the same voltage. They're safe as long as their leads are in
the foam even if you don't have your wrist strap on.) 

2) For the same reason do not use carpet on your work bench! That was very
popular years ago, but most carpet a huge static electricity reservoir. A
static-dissipating mat is nice, but not essential. 

3) Just because a part is installed in a pc board doesn't mean it's safe.
Usually the assembly procedures call for installing sensitive parts last,
whenever possible, so resistors and other circuit elements serve to keep the
leads from acquiring a destructive static charge. But when you have a board
out of the rig, some sensitive circuits may be open where it plugs into the
other boards. Unless you know for sure it's safe, treat any pcb that is out
of the rig as static sensitive. 

Ron AC7AC


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Koaps
Sent: Wednesday, May 23, 2007 12:24 PM
To: Elecraft
Subject: [Elecraft] Being ESD Safe


Hello all,

I just ordered a KX-1 lastnight and I have bought a
weller wes51 solder station and cutters which are ESD
safe.

My question is, how do I make myself ESD safe?

In the KX-1 manual it says, 

"Wear a conductive wrist strap with a series 1 megohm resistor."

I have a wrist strap, I can get a 1 megohm resistor,
but what do I connect it to? The PCB board? A wire
going out my window to the ground?

I really don't want to shock any components, so I want
to be very careful about ESD and take the best course
to prevent it.

Thanks all,
-Chris


 


The fish are biting. 
Get more visitors on your site using Yahoo! Search Marketing.
http://searchmarketing.yahoo.com/arp/sponsoredsearch_v2.php
___
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] Can the K2 be used as a SWL AM radio?

[Mike Markowski]

Rob Lundahl wrote:
> Can the K2 also be used as a SWL AM radio?...

Here's some work on that topic done by Niel Skousen WA7SSA:

http://www.elecraft.com/Apps/K2_GenCov.htm

73,
Mike ab3ap
___
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] Being ESD Safe

[Koaps]

Thanks for the replies.

Good info, I wasn't sure if I need to plug into my
powerstrip or something to get a ground contact,
living in an apartment makes grounding kinda a pain,
and I have a power splitter with a power/ground lights
and the ground light likes to flash a lot, leading me
to believe the ground isn't the best.

I'm going to be working on a wood table(particle
board) and there is carpet on the floor, unfortunately
there's no where else to setup.

I wasn't sure if I needed to get a mat on the table or
not, its not coated with any varnish or anything, just
raw wood.

I'm really excited about building the KX1, this will
be the first hardcore circuit I have built. I have
done some dead bug stuff for BEAM robots, and an easy
FM transmitter kit, but nothing like the KX1.

Thanks again for the replies guys, makes me feel
better about ESD.

-Chris


   
Building
 a website is a piece of cake. Yahoo! Small Business gives you all the tools to 
get online.
http://smallbusiness.yahoo.com/webhosting 
___
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] Being ESD Safe

[Don Wilhelm]

Chris,

I would advise an anti-static mat on your workbench, especially since 
you are working on carpet.  One of the ones that are computer keyboard 
size should do nicely and are available for a reasonable price.


Connect both the mat and the wrist strap to the mains ground lug - each 
should have the 1 megohm resistor as part of the grounding cable, but 
you may want to check with an ohmmeter.


73,
Don W3FPR

Koaps wrote:

Thanks for the replies.

Good info, I wasn't sure if I need to plug into my
powerstrip or something to get a ground contact,
living in an apartment makes grounding kinda a pain,
and I have a power splitter with a power/ground lights
and the ground light likes to flash a lot, leading me
to believe the ground isn't the best.

I'm going to be working on a wood table(particle
board) and there is carpet on the floor, unfortunately
there's no where else to setup.

I wasn't sure if I needed to get a mat on the table or
not, its not coated with any varnish or anything, just
raw wood.

I'm really excited about building the KX1, this will
be the first hardcore circuit I have built. I have
done some dead bug stuff for BEAM robots, and an easy
FM transmitter kit, but nothing like the KX1.

Thanks again for the replies guys, makes me feel
better about ESD.

___
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] Problems

[Don Wilhelm]

Bill,

Check carefully for unsoldered connections on the front panel board, 
and/or the connectors on the RF Board to both the front panel and the 
control board.  Likewise check for solder bridges.


On the PLL, do you hsve a signal at TP3? - that is the PLL oscillator 
(12,090 kHz vicinity), what is the frequency at TP1?  Is it consistent 
with the band that the K2 is tuned to? (see the VCO table on the K2 
Schematic Key page).


The signal at TP2 comes from the BFO and TP2 normally will not have a 
signal unless in CAL FCTR mode or during transmit.


73,
Don W3FPR

William M. Spaulding, SR wrote:

Hi All,

My K2 project has two snags.  The first is the optical encoder.  When turning the encoder 
shaft, it appears to be battling with "Lock" to see who will control the 
frequency.  Lock always wins, although if you turn fast enough, you can get one or two 
changes in the lsb.  The remainder of the front panel seems to work well.  Can someone 
shed some light on this problem?

The second battle is somewhere in the PLL.  I get a signal at TP1.  TP2 has 
nothing but a lot of noise that you would expect if the loop is not locking 
properly.  These are sticky wickets, and I sure could use help.

Thanks for any help,

Bill
NA7Y

___
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 Questions, some will be answered over time.

[Bruce McLaughlin]

Perhaps it's either mojo or magic!  Either way, it sounds exciting.

Bruce - W8FU

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Don Rasmussen
Sent: Wednesday, May 23, 2007 2:20 PM
To: Elecraft List
Subject: [Elecraft] K3 Questions, some will be answered over time.

1. Why didn't Elecraft hire a marketing consultant to
cost the K3 using prices ranging from $2499 to $8000? 

Don't they know that:
 a.) A higher price adds to ownership status and
 b.) They'd still be competitive??? 
I am upset that I purchased a lower priced radio than
I can afford and Elecraft has some explaining to do.
How smart is that? 

2. Would having a weak sister second receiver lower
your contest score as compared to competitors that
have 2 good ones?

3. Are the other manufacturers upset, enough so that
they might update their designs or would they start a
new marketing campaign or series of ads in QST for
their existing gear?

4. How many times is it acceptable for your contest
radio to lock up in a 24 hour period? 

5. How often is it a satisfactory solution that
someone would do a "master reset" if their radio was
behaving oddly over a period of days or weeks. 

6. How is it possible for K3 to be ready to operate in
seconds when the others need 20 times longer to
calibrate the DSP? Is my DSP running uncalibrated?

7. How can a radio that is announced just before
Dayton have a working model there (not one under
glass) and planned production units in a matter of
weeks after introduction? 

Enquiring minds.

___
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] L9 in KX-1

[Mike Cizek W3MC]

Greetings - I bought a KX-1 at Dayton and am starting to build it.  The part 
I have for L9, 100 uH choke, is a mini size, and the parts list calls for a 
micro size.  Looking at the board, the holes appear to be spaced for a micro 
sized choke.  Should I try to put the mini size in there, or get a micro 
sized 100 uH choke??  Thanks.


73,

Mike Cizek  W3MC
[EMAIL PROTECTED]
FOC # 1739
HSC # 1849 



___
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] L9 in KX-1

[Don Wilhelm]

Mike,

Put the mini-sized one in there - the micro-size ones are no longer 
available.  Look on the Elecraft website Builders Resource page if you 
cannot envision how to form the leads for the smaller spacing.  Just 
keep the body as low profile as you can.


73,
Don W3FPR


Mike Cizek W3MC wrote:
Greetings - I bought a KX-1 at Dayton and am starting to build it.  The 
part I have for L9, 100 uH choke, is a mini size, and the parts list 
calls for a micro size.  Looking at the board, the holes appear to be 
spaced for a micro sized choke.  Should I try to put the mini size in 
there, or get a micro sized 100 uH choke??  Thanks.



___
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] L9 in KX-1

[Ron D'Eau Claire]

Hi, Mike: 

Elecraft changed from the micro to mini sized chokes recently (part of the
RoHS changeover). See 
http://www.elecraft.com/Apps/Builder%20Alert%20Installing%20Small%20Chokes%2
0Rev%20B.pdf

Or 

http://tinyurl.com/yvm7vk (shorter form of the above link)

On the Elecraft web site for details. 

Ron AC7AC

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mike Cizek W3MC
Sent: Wednesday, May 23, 2007 4:03 PM
To: Elecraft Reflector; [EMAIL PROTECTED]
Subject: [Elecraft] L9 in KX-1


Greetings - I bought a KX-1 at Dayton and am starting to build it.  The part

I have for L9, 100 uH choke, is a mini size, and the parts list calls for a 
micro size.  Looking at the board, the holes appear to be spaced for a micro

sized choke.  Should I try to put the mini size in there, or get a micro 
sized 100 uH choke??  Thanks.

73,

Mike Cizek  W3MC
[EMAIL PROTECTED]
FOC # 1739
HSC # 1849 


___
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] K3 Repairs at home

[Brian Lloyd]

On May 23, 2007, at 5:39 AM, J F wrote:


Still curious about the internal clock an the ability
to directly sync it with WWV or other OTA time source.


There appears to be an external reference input on the back panel.  
You should be able to drive that with a GPS-disciplined reference  
oscillator. That should get frequency error down to at least 1e-10  
which is .1 ppb or .1 Hz error at 1GHz. That should be sufficiently  
accurate for direct frequency input even with the narrowest modes.


73 de Brian, WB6RQN
Brian Lloyd - brian HYPHEN wb6rqn AT lloyd DOT 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] Re: K3, smd and spectral display

[Jean-Claude Abauzit]

> I don't quite understand the X-tal frequency of 11 MHz. My impression is
> that the Softrock needs a crystal which is 4 x the center frequency, i.e. in
> the order of 4 x 8.215 MHz or 32.86 MHz for the K3. What am I missing here?
> Sverre LA3ZA

The Xtal must be a fundamental Xtal, an overtone Xtal won't oscillate 
in the SoftRock. It would be difficult to find a fundamental Xtal for 
32.86 MHz. The technique used is 3rd harmonic sub-sampling (11 * 3) / 
4 = 8.25 MHz. You also have to reverse the I & Q going to the sound card.


Jean-Claude PJ2BVU 


No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.5.467 / Virus Database: 269.7.7/816 - Release Date: 5/23/2007 3:59 PM
___
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 Manual ETA

[N2ZDB]

Does anyone know what the current ETA of the K3 manual is?
 
Thanks,
 
Michael
N2ZDB



** See what's free at http://www.aol.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 Repairs at home

[J F]

Thanks Brian...

So it appears I would need an additional item to go
that route.. or rely on my lightning fast fingertip
;o)

Cheers,
Julius
n2wn

> There appears to be an external reference input on
> the back panel.  
> You should be able to drive that with a
> GPS-disciplined reference  
> oscillator. That should get frequency error down to
> at least 1e-10  
> which is .1 ppb or .1 Hz error at 1GHz. That should
> be sufficiently  
> accurate for direct frequency input even with the
> narrowest modes.
> 
> 73 de Brian, WB6RQN
> Brian Lloyd - brian HYPHEN wb6rqn AT lloyd DOT 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] Re: K3 Manual ETA

[wayne burdick]

Late June at the earliest, Michael.

73,
Wayne
N6KR


On May 23, 2007, at 6:04 PM, [EMAIL PROTECTED] wrote:


Does anyone know what the current ETA of the K3 manual is?

Thanks,

Michael
N2ZDB



---

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] Remoting a T1

[Jim Miller]

I've been looking at what it would take to remote my shiny new T1 and using 
the coax feed (60ft long in my case) to do all the signalling for both a 
tune request as well as band data.

I'm thinking that if tune was a logic high sent down the coax via a open 
collector then the logic at the other end could signal the T1 data request 
by pulling the line low for 50ms and then releasing it. The shack end could 
then signal the band data after the 10ms delay.

A 50 cent micro at each end could do the job. The far end would need a 
battery. Even a PIC10F would suffice at the T1 end.

Any problems with this approach?

Any chance this could get absorbed in the T1 firmware to make this easier? 
Seems like an easy change and could even co-exist with the current approach 
and be accessed by some button presses.

Would still need a diplexer at each end to keep out the nasty RF and some 
sort of little switch/annuciator to set the band at the shack end.

73

Jim (AB3CV)
k2 #5874 

___
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 Amps

[Stan Rife]

Wayne, when are the KPA Amps going to be released? I am excited about the
K3, but I was really looking forward to the KPA-800.

Stan Rife
W5EWA





___
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: SDR - K3 - and GUI Interface

[Brian Lloyd]

We need to hone the definition of a SDR radio.


That doesn't seem that hard to me but I am probably using it more  
broadly than some. I think that most people want to use the  
definition where they pump broadband signals into an A:D and then do  
all the filtering and detection in software (DSP). This allows the  
receiver to be used at any frequency below the Nyquist frequency (1/2  
the sampling rate). The state-of-the-art right now is something like  
60Msps at 16bits of depth. That implies a radio that can cover all of  
the HF spectrum, i.e. 0-30MHz, all at once and have a dynamic range  
of 96dB.


OTOH, I am willing to broaden this definition to include some analog  
bits, e.g. preamp, first mixer, first IF with roofing filters, second  
mixer, A:D at second IF of up to about 200KHz with about 20 bits  
(120dB) of dynamic range. All modulation and demodulation takes place  
in software following the A:D. There is no conventional demodulator,  
e.g. product detector.


OTOH some might consider the second mixer to actually be a product  
detector and the second IF to be 'audio'. Since demodulation takes  
place in software and the software also generates some or all of the  
AGC signal used to reduce the gain of the analog components, I  
consider this "audio" to actually be IF. If the software then  
controls all of the other functions of the radio and every aspect of  
the analog functioning is also under the control of the software, I  
would say that this constitutes an SDR.


I do recognize that this is a rather open interpretation but I also  
think that it is the best that we can do today at HF given the SOTA  
(sorry, state-of-the-art) of A:D, D:A, and DSP. I suspect that will  
will achieve greater flexibility in the not-too-distant future as A:D  
gets deeper (bit depth) and faster (sample rate).



We need to hone the definition of User Interface


That one is dirt simple. It is how the person using the device  
controls the device. The knobs and switches on a standard radio form  
one form of user interface. The screen, keyboard, mouse, and software  
of the standard PC along with the software forms another kind of user  
interface. The steering wheel, throttle, brake pedal, and dashboard  
of a car form yet another user interface.


The problems of user interface have to do with how easy it is to  
learn and how easy it is to use. These are NOT the same. The average  
"desktop" metaphor used with most computer systems is relatively easy  
to learn and a pain-in-the-butt to use because you end up having to  
make lots of monkey-motion to get even the simplest task  
accomplished. Contrast that with the command-line interface of Unix  
which is the polar opposite: daunting to learn but amazingly powerful  
and simple to use.


Here is another example I think almost everyone can relate to: the  
average 2M HT. Back in the days of the venerable Icom IC-2AT things  
were dirt-simple: dial in the frequency (precious little training  
needed there), set the offset, and key the mic. Then along came the  
microprocessor. Programmers discovered they could do all SORTS of  
clever things inside the HT, most of them useless to a person using  
the hand-held. This required them to come up with all sorts of arcane  
key sequences, menus, and 'soft keys' to control the device, all of  
which were done badly and painfully. Sure you can spend the evening  
programming all the memories but now I want you to hop in your car,  
drive out of your normal operating area, and just manually enter a  
new repeater as you drive along. Better still, manually scan for a  
local repeater and get on it. Painful, isn't it? Now imagine an  
IC-2AT that just adds one more thumbwheel -- CTCSS tone -- and  
imagine how it would be. Add one more feature, a read-out of received  
CTCSS tone, and you can probably get on any repeater you can find and  
hear.


The point is, the user interface on almost every device with a  
microprocessor SUCKS! Notable exceptions are those things with single- 
function switches and knobs.


Now think about your average hard-wired HF transceiver. Not a lot of  
differences. I can sit down at most HF transceivers and make them  
work ... up until they started added microprocessors. HW101? KWM2?  
FT-101E? No problem. IC-706? Not without a manual in front of you you  
won't. But add the switches on the front panel back in and it becomes  
easier. A toggle switch labeled "speech processor" and another  
labeled "VOX" is a no brainer, as is a rotary switch labeled "IF  
bandwidth 6.0k 2.7k 1.8k 800 500 200".


And then there is the concept of customization. Puh-leeze! Why do we  
need 49 different ways to do the same thing? All that accomplishes is  
to ensure that no one else can use your device.


Sorry. I got carried away.

Bottom line, single-function knobs and switches have a very nice  
quality. I can look at them and know what they do. Maybe we can move  
some (all?) of that into softwar

[Elecraft] Softrock for K3

[Bill Tippett]

I wrote on the softrock40 list:

Re: [softrock40] Softrock kit for new Elecraft K3

> Has anyone configured a kit for the new Elecraft K3 which will have a
> wideband buffered IF output of 8.215 MHz? This promises to be a very
> popular rig and I am sure many will want to use a Softrock on the IF
> output as a panadapter.



From: Lyle KK7P (Elecraft)

Please use injection on the low side of 8.215 kHz - say 8.200 or lower - to
keep reverse energy down. Or use harmonic sampling, or...

73,

Lyle KK7P




From KB9YIG (Softrock designer):

Re: [softrock40] Softrock kit for new Elecraft K3

Hi Bill,

I have a SoftRock Lite kit for use with the K3 IF signal.  The kit provides a
center frequency of about 8.191 kHz and when used with a soundcard that can
sample at 96 kHz gives a view of signals in the 8.143 MHz to 8.239 MHz
range.  Kit cost is $11 and a kit may be ordered via PayPal to
raparks at ctcisp.com The price includes US/Canada mailing expenses.  For
DX locations I need to ask for an additional $1 to help with the mailing cost.

An open question is what signal and Z level are available at the K3 
IF output?

There may need to be some interface issues to resolve with the above
SoftRock Lite kit for use with the K3.  (de W4ZV - Elecraft  must answer this)

Thanks and 73,
Tony KB9YIG



I also learned from that list that the K3's buffered
IF output at 8.215 MHz is ~200 kHz wide (before it goes
through the roofing filter).  Clearly Elecraft and KB9YIG
need to communicate directly on this issue!

73,  Bill  W4ZV

___
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] Receiving and demodulation

[Brian Lloyd]

On May 23, 2007, at 9:33 AM, lyle johnson wrote:

One of the interesting features of the K3 is that PSK31 and RTTY   
operation are part of the radio. Does that mean that the PSK31  
and  RTTY demodulators in the K3 control the AGC so that the  
desired  signal and only the desired signal controls AGC?


The use of an SSB bandwidth "waterfall" display for PSK31 is a  
great example of using the wrong filter for the job, at least after  
you've established the QSO.  The Rx AGC gets pumped by strong  
signals inside the "roofing filter" bandwidth, as you've observed.


On the K3, when I am copying a PSK31 signal, I spin the selectivity  
right down to 50 Hz.  Then, the PSK31 signjal I am copuying is the  
only one inside the fitler bandwidth, and is the one driving the AGC.


Thanks Lyle. That helps. Sounds like AGC is derived from the envelope  
energy in the passband. I was thinking of actually looking at the  
energy contained in the desired signal, in this case the PSK- 
modulated carrier and the associated sidebands, and using that to  
control the AGC even tho' there are other signals in the passband.  
This could result in the AGC being set such that the A:D saturates  
but that's life.


Thought: set the Eb/No of the desired signal to the desired 12dB or  
so using the AGC and then track it. That would guarantee the maximum  
headroom regardless of filter selection.


And narrowing the roofing filter as much as possible is also nice ...  
unless you are trying to copy more than one signal in the passband  
simultaneously.


73 de Brian, WB6RQN
Brian Lloyd - brian HYPHEN wb6rqn AT lloyd DOT 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 #5723

[ku4yp]

hello all,

   well, i finally started the kit. i know, have had a ton of stuff 
going and it has sat for a while. however, i finished the control board 
tonight. i have to say elecraft is right on with the manual. i have 
never tried a kit this large and was kind of intimidated. i am impressed 
at how well the manual is explained.


   hope to have it finished within the week. maybe :-)

   73 mike ku4yp
  
___

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: Softrock for K3

[Jean-Claude Abauzit]

> .. Snip ...
> I also learned from that list that the K3's buffered
> IF output at 8.215 MHz is ~200 kHz wide (before it goes
> through the roofing filter).  Clearly Elecraft and KB9YIG
> need to communicate directly on this issue!
> 73,  Bill  W4ZV

Sorry for spreading false rumors: the IF is not ~200 kHz wide. I 
misunderstood a post from Wayne: the ~200 kHz referred to the 
bandwidth limitation due to the sound card (192 kHz max) and I 
understood it as the IF bandwidth. I made a post about it and Wayne 
corrected me: the IF bandwidth is as wide as the input BPF.


Jean-Claude PJ2BVU



No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.5.467 / Virus Database: 269.7.7/816 - Release Date: 5/23/2007 3:59 PM
___
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, smd and spectral display

[Benny Aumala]

Yes, Sverre, you are right.
3rd overtone gives 33MHz /4= 8,250 which is a bit high, but
with 96k soundcard you have well room there.
This has been made working in a FT1000, see SoftRock reflector.
And works remarkably well, very sensitive, indeed.
I found a surplus 32,768 which is a bit closer and higher (8192).
The oscillator shoud not be in K3 roofing filters passband or near it s 
filters.

Take care, if you are going to use AM or FM.
Advantage with Tony is: his Xtal works surely in that schema
and is small enough, maybe available inside kit s price. And he has them.
Ha det!

Benny
__

Sverre Holm kirjoitti:

Benny Aumala wrote:

 

"v6 SoftRock lite" kit ...
If you will use it with K3, ask Tony to send 11 MHz Xtal with the kit.



Benny,

I don't quite understand the X-tal frequency of 11 MHz. My impression is
that the Softrock needs a crystal which is 4 x the center frequency, 
i.e. in
the order of 4 x 8.215 MHz or 32.86 MHz for the K3. What am I missing 
here?



73

Sverre
LA3ZA

Unofficial Guide to K2 Modifications
http://www.qslnet.de/member/la3za/K2/mod.html







  


___
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] Being ESD Safe

[AJSOENKE]

Quick Answer: See This months (JUNE 2007) QST Page 28.  I could add a lot to 
the article from a MIL-SPEC suppliers point of view, but then it would be 
grossly overstated.
Check the Elecraft Web Pages for more also.
A good wrist strap and common sense will go a long way.


Good luck with the project.  Al WA6VNN



** See what's free at http://www.aol.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