K2 battleplan?

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K2 battleplan?

Ken Bessler-2
I'll be sending out my 1st order for a K2 station next
week. Many thanks to Jim Sheldon, W0EB for his
demo of a K2 that flat out blew my mind.

I still would like help from the users selecting both
the construction order and exactly what to buy. Below
is a list of what (& what order) I'm thinking of buying:

1) K2, KSB2  (May)
2) KPA100  (August)
3) K160RX, KNB2, KIO2 (September)
4) K60XV, KDSP2 (November)
5) XV50 (January '06)
6) XV144 (March '06)

Have I missed anything? Is that order of construction
a good one?

Thanks for all the help!

 Just my 2¢ worth... 73's es gd dx de Ken KGØWX
Grid EM17ip, Flying Pigs #1055, Digital On Six #350,
 List Owner, Yahoo! E-groups: VX-2R & FT-857



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RE: K2 battleplan?

Don Wilhelm-3
Ken,

Exchange the KIO2 and the K60XV positions and you may only have to remove
the K2 heat sink one time.  Other than that, any order will do as well as
any other.

73,
Don W3FPR

> -----Original Message-----
>
> I'll be sending out my 1st order for a K2 station next
> week. Many thanks to Jim Sheldon, W0EB for his
> demo of a K2 that flat out blew my mind.
>
> I still would like help from the users selecting both
> the construction order and exactly what to buy. Below
> is a list of what (& what order) I'm thinking of buying:
>
> 1) K2, KSB2  (May)
> 2) KPA100  (August)
> 3) K160RX, KNB2, KIO2 (September)
> 4) K60XV, KDSP2 (November)
> 5) XV50 (January '06)
> 6) XV144 (March '06)
>
> Have I missed anything? Is that order of construction
> a good one?
>
>
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RE: K2 battleplan?

Gary Hvizdak
In reply to this post by Ken Bessler-2
Ken wrote ...

I still would like help from the users selecting both
the construction order and exactly what to buy. Below
is a list of what (& what order) I'm thinking of buying:

1) K2, KSB2  (May)
2) KPA100  (August)
3) K160RX, KNB2, KIO2 (September)
4) K60XV, KDSP2 (November)
5) XV50 (January '06)
6) XV144 (March '06)

Have I missed anything? Is that order of construction
a good one?

--

Hi Ken,

    It is if you will remoting the KPA-100 in a separate EC-2 enclosure.
Otherwise, the KIO2 and KPA-100 are mutually exclusive, occupying the same
space and providing the same (serial I/O) functionality.

    Have you any need for the Noise Blanker (KNB2), or Elecraft's external
150 watt auto tuner (KAT-100)?  The KAT-100 comes in two "flavors", with one
designed to cohabitate with the KPA-100 in an EC-2 (which must be purchased
separately).

73,
Gary, KI4GGX
K2# 4067

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Re: K2 battleplan?

Hisashi T Fujinaka
In reply to this post by Ken Bessler-2
On Fri, 29 Apr 2005, Ken Bessler wrote:

> I'll be sending out my 1st order for a K2 station next
> week. Many thanks to Jim Sheldon, W0EB for his
> demo of a K2 that flat out blew my mind.
>
> I still would like help from the users selecting both
> the construction order and exactly what to buy. Below
> is a list of what (& what order) I'm thinking of buying:
>
> 1) K2, KSB2  (May)
> 2) KPA100  (August)
> 3) K160RX, KNB2, KIO2 (September)
> 4) K60XV, KDSP2 (November)
> 5) XV50 (January '06)
> 6) XV144 (March '06)
>
> Have I missed anything? Is that order of construction
> a good one?
>
> Thanks for all the help!

In my location, the K2 was unusable without the KNB2, so I'd get it in
step 1. But as they say, YMMV.

--
Hisashi T Fujinaka - [hidden email]
BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte
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RE: K2 battleplan?

Eric J
I agree. And the KNB2 is the FIRST NB I ever had in a radio that actually
worked most of the time. The one in my TS-950S just trades a noise problem
for lots of other problems. The KNB2 isn't always successful with various
noises in my neighborhood, but it is most of the time.

Eric
KE6US

-----Original Message-----
From: elecraft-bounces+eric_csuf=[hidden email]
[mailto:elecraft-bounces+eric_csuf=[hidden email]] On Behalf Of
Hisashi T Fujinaka
Sent: Friday, April 29, 2005 10:07 PM
To: Ken Bessler
Cc: Elecraft Main Group
Subject: Re: [Elecraft] K2 battleplan?

On Fri, 29 Apr 2005, Ken Bessler wrote:

> I'll be sending out my 1st order for a K2 station next week. Many
> thanks to Jim Sheldon, W0EB for his demo of a K2 that flat out blew my
> mind.
>
> I still would like help from the users selecting both the construction
> order and exactly what to buy. Below is a list of what (& what order)
> I'm thinking of buying:
>
> 1) K2, KSB2  (May)
> 2) KPA100  (August)
> 3) K160RX, KNB2, KIO2 (September)
> 4) K60XV, KDSP2 (November)
> 5) XV50 (January '06)
> 6) XV144 (March '06)
>
> Have I missed anything? Is that order of construction a good one?
>
> Thanks for all the help!

In my location, the K2 was unusable without the KNB2, so I'd get it in step
1. But as they say, YMMV.

--
Hisashi T Fujinaka - [hidden email]
BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte
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Re: Noise blanker [was: K2 battleplan?]

Mike Markowski
In reply to this post by Hisashi T Fujinaka
Hisashi T Fujinaka wrote:
> In my location, the K2 was unusable without the KNB2, so I'd get it in
> step 1. But as they say, YMMV.

I've noticed the majority of K2s seem to be built with the NB.  I don't
have it, and since I don't seem to be having any man-made noise problems
I've been wondering when & where the NB is useful.  Is it mainly for
presumably noisier urban and suburban areas?  Without it would something
like Spectrogram show continual spikes at certain frequencies?  And
finally, would the DSP board have any substantial effect on the sort of
man-made noise the NB addresses?  Thanks!

Curiously yours,
Mike  AB3AP
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RE: Noise blanker [was: K2 battleplan?]

Ron D'Eau Claire-2
Mike AB3AP wrote:
I've noticed the majority of K2s seem to be built with the NB.  I don't have
it, and since I don't seem to be having any man-made noise problems I've
been wondering when & where the NB is useful.  Is it mainly for presumably
noisier urban and suburban areas?  Without it would something like
Spectrogram show continual spikes at certain frequencies?  And finally,
would the DSP board have any substantial effect on the sort of man-made
noise the NB addresses?  Thanks!

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

The noise blanker is designed to suppress noise consisting of a train of
high-intensity pulses with a regular interval between them. Good examples
are the raucous buzz most cheap incandescent lamp dimmers produce or the
staccato pops produced by poorly-shielded automobile ignition systems,
especially on the higher frequencies.

If the noise does not have pulses that occur with very fast rise times and
at regular intervals, the noise blanker won't be able to identify it from
regular QRN or it won't able properly time the action to suppress the
pulses.

It does a wonderful job on the proper sort of noise but, like all such noise
blankers, it does it at some expense in performance. The blanker actually
shuts off the i.f. strip for the duration of each pulse. Instead of a train
of loud pops coming through the second detector and down the audio channel,
you have a chain of 'holes' where there is no output.

The problem is that process of switching the i.f. strip on and off quickly
also turns the i.f. into an unintentional frequency mixer. With the noise
blanker on, strong signals can mix with each other in the i.f. producing
spurious artifacts that sound like everything from normal QRN to actual
spurious signals on the band. That's why the noise blanker has an on/off
switch. The noise blanker should only be turned on when it's needed.

I don't have the DSP unit in my K2 so I can't compare them. The sorts of
noise the noise blanker is designed to produce are more likely to be
encountered in a urban environment, although sources capable of drowning out
the bands might also be in your own home. The noise from cheap lamp dimmers
usually doesn't travel very far, for example. The troublesome ones are
usually very close by.

Ron AC7AC




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RE: Noise blanker [was: K2 battleplan?]

Eric J
In reply to this post by Mike Markowski
I have a K2 with NB and the NB is very effective in the urban/suburban area
I live it with lots of noise. But I did not get the NB for my K1 which is
only used in the field where it is so quiet I sometimes think my radio has
died.

I'd say, get it without the NB and add it later if the noise in your
operating environment is intolerable.

Eric
KE6US

-----Original Message-----
From: elecraft-bounces+eric_csuf=[hidden email]
[mailto:elecraft-bounces+eric_csuf=[hidden email]] On Behalf Of
Mike Markowski
Sent: Saturday, April 30, 2005 8:11 AM
To: Elecraft Main Group
Subject: Re: [Elecraft] Noise blanker [was: K2 battleplan?]

Hisashi T Fujinaka wrote:
> In my location, the K2 was unusable without the KNB2, so I'd get it in
> step 1. But as they say, YMMV.

I've noticed the majority of K2s seem to be built with the NB.  I don't have
it, and since I don't seem to be having any man-made noise problems I've
been wondering when & where the NB is useful.  Is it mainly for presumably
noisier urban and suburban areas?  Without it would something like
Spectrogram show continual spikes at certain frequencies?  And finally,
would the DSP board have any substantial effect on the sort of man-made
noise the NB addresses?  Thanks!

Curiously yours,
Mike  AB3AP
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Re: Noise blanker [was: K2 battleplan?]

G3VVT
In reply to this post by Mike Markowski
 
In a message dated 30/04/05 16:12:07 GMT Daylight Time, [hidden email]  writes:

I've  noticed the majority of K2s seem to be built with the NB.  I  don't
have it, and since I don't seem to be having any man-made noise  problems
I've been wondering when & where the NB is useful.  Is it  mainly for
presumably noisier urban and suburban areas?  Without it  would something
like Spectrogram show continual spikes at certain  frequencies?  And
finally, would the DSP board have any substantial  effect on the sort of
man-made noise the NB  addresses?


Reply: --------------------------------------------------
 
At first I thought the KNB2 noise blanker in my K2 was not working as it  had
no effect on the normal type of noise received at my QTH. Then  after quite a
few months found that the NB did indeed work and very well, but  only on
impulsive noise with sharp rise times like automobile ignition  interference.
Seems that the KNB2 is a lot more selective in what it will  suppress. My old
faithful Yaesu FT-480R 2m multimode on the other hand is not as  choosy and will
work over a wider range of noise types. The FT-480R if anything  is rather
simpler in the NB circuit design than the KNB2. The FT-480R picks up  the RX wide
band input half way through the two roofing filters that provide  initial
bandwidth control after the first mixer. It uses a relatively high  gain IF
section controlled with AGC to feed a detector circuit that gates G2 in  the 2nd
mixer MOSFET. It does work exceptionally well though, removing a variety  of
noise types. If the KNB2 worked to the same degree I would be very  happy.
 
The incidence of the type of interference that the KNB2 will gate out  is
seldom experienced at my QTH, so it gets very little use. In  retrospect could
have saved a some money by leaving the KNB2 out in my  K2, though as has been
pointed out in other postings there are some QTH  where this noise blanker is
really useful.
 
Only hope that eventually some future mod or redesign of this module  may be
of benefit with the type of noise I suffer from.
 
As regards use of the DSP2, I do not have one in my K2, but do have an  
external Timewave DSP-9+ available. The DSP-9 works I would guess in a  similar way
to the DSP2 in that it is in the audio chain. Impulsive noise is not  removed
by this device in noise reduction mode (NRr), though longer term noise  that
the normal noise blanker will not touch is suppressed in amplitude during  
it's duration. I would guess the audible effect is in a way similar to what used  
to happen with ANL circuits in the AM days. The DSP-9 and would presume other
 audio DSP devices have a longer delay in response time and so prevent  any
chance of removing sharp rise time noise.
 
Though it may be looked on as heresy by the K2 CW fraternity, in the  
Timewave DSP-9+ SSB mode, morse can be almost completely eradicated by the  action of
noise reduction on tone (NRt). When going over to CW with an external  DSP
device, the user has to be careful that this NRt facility is switched off,  
otherwise little morse is heard.
 
Bob, G3VVT
K2 #4168
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Re: Noise blanker [was: K2 battleplan?]

Darrell Bellerive
On April 30, 2005 4:31 pm, [hidden email] wrote:
> Only hope that eventually some future mod or redesign of this module  may
> be of benefit with the type of noise I suffer from.
> Bob, G3VVT
> K2 #4168

Have you considered the mods for the noise blanker:
http://www.qsl.net/ve3mcf/elecraft_reflect/KNB2_Mods.txt

--
Darrell Bellerive
Amateur Radio Stations: VA7TO, VE7CLA
Grand Forks, British Columbia, Canada
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Re: Noise blanker [was: K2 battleplan?]

Jim Brown-10
On Sat, 30 Apr 2005 16:42:19 -0700, Darrell Bellerive wrote:

>Have you considered the mods for the noise blanker:
>http://www.qsl.net/ve3mcf/elecraft_reflect/KNB2_Mods.txt

That mod does NOT work for me. I own two KNB2's. One I built, one
came in a K2 that I bought used, and had that mod. It simply didn't
work at all. I've restored it to "stock," and now it works fine.

Jim K9YC


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Re: Noise blanker [was: K2 battleplan?]

Robert McGwier
Jim:

I found that nothing worked here until I RTFM and changed the NB
threshold from
High to Low.  This whacked the  horrendous track-light noise when my
family has
the audacity to use the family room when I am on 40 meters.  ;-)

Have you changed that setting?

I really am going to fix these track lights,  real soon now.

Bob
N4HY


Jim Brown wrote:

>On Sat, 30 Apr 2005 16:42:19 -0700, Darrell Bellerive wrote:
>
>  
>
>>Have you considered the mods for the noise blanker:
>>http://www.qsl.net/ve3mcf/elecraft_reflect/KNB2_Mods.txt
>>    
>>
>
>That mod does NOT work for me. I own two KNB2's. One I built, one
>came in a K2 that I bought used, and had that mod. It simply didn't
>work at all. I've restored it to "stock," and now it works fine.
>
>Jim K9YC
>
>
>_
>


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Re: Noise blanker [was: K2 battleplan?]

Mike Markowski
In reply to this post by Ron D'Eau Claire-2
Thanks for all the very helpful replies regarding the noise blanker!

Mike  AB3AP

Ron D'Eau Claire wrote on 04/30/05 11:37 ET:
> Mike AB3AP wrote:
> I've noticed the majority of K2s seem to be built with the NB.  [...]
>
> -------------------------------------
>
> The noise blanker is designed to suppress noise consisting of a train of
> high-intensity pulses with a regular interval between them.  [...]
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RE: K2 battleplan?

Bruce McLaughlin
In reply to this post by Ken Bessler-2
As I recall, if you get the KPA100 it has an I/O so you do not need (and
I believe) can't install the I/O in the K2.  They physically interfere
with each other.

I would also consider buying and installing the 160 meter adaptor before
the KPA100.  Although I don't have the 160 adaptor in my K2/100, I seem
to remember that if you go too far before installing the 160 adaptor you
have to take a lot of things apart to install it later.  Maybe someone
else can better explain that.

Bruce - W8FU

-----Original Message-----
From: elecraft-bounces+bmclaugh=[hidden email]
[mailto:elecraft-bounces+bmclaugh=[hidden email]]
On Behalf Of Ken Bessler
Sent: Friday, April 29, 2005 10:23 PM
To: Elecraft Main Group
Subject: [Elecraft] K2 battleplan?

I'll be sending out my 1st order for a K2 station next
week. Many thanks to Jim Sheldon, W0EB for his
demo of a K2 that flat out blew my mind.

I still would like help from the users selecting both
the construction order and exactly what to buy. Below
is a list of what (& what order) I'm thinking of buying:

1) K2, KSB2  (May)
2) KPA100  (August)
3) K160RX, KNB2, KIO2 (September)
4) K60XV, KDSP2 (November)
5) XV50 (January '06)
6) XV144 (March '06)

Have I missed anything? Is that order of construction
a good one?

Thanks for all the help!

 Just my 2¢ worth... 73's es gd dx de Ken KGØWX
Grid EM17ip, Flying Pigs #1055, Digital On Six #350,
 List Owner, Yahoo! E-groups: VX-2R & FT-857



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Checked by AVG Anti-Virus.
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RE: K2 battleplan?

Bob Nielsen
On Wed, 2005-05-04 at 18:19 -0400, Bruce McLaughlin wrote:
> As I recall, if you get the KPA100 it has an I/O so you do not need (and
> I believe) can't install the I/O in the K2.  They physically interfere
> with each other.
>
> I would also consider buying and installing the 160 meter adaptor before
> the KPA100.  Although I don't have the 160 adaptor in my K2/100, I seem
> to remember that if you go too far before installing the 160 adaptor you
> have to take a lot of things apart to install it later.  Maybe someone
> else can better explain that.

The KBT1 and KAT2 are also incompatible with a KPA100 mounted on top of
a K2.

To install the K160RX, you need to remove the heat sink from the PA
transistors.  It probably is better to build and test the basic K2
before doing any of the mods (except for installing the necessary
headers), so you will need to remove the heat sink in any case.  

73, Bob N7XY



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RE: K2 battleplan?

roncasa
 
  Bob, N7XY writes:
"To install the K160RX, you need to remove the heat sink from the PA
transistors.  It probably is better to build and test the basic K2
before doing any of the mods (except for installing the necessary
headers), so you will need to remove the heat sink in any case."  


What does this have to do with......"battle plan"?
Is there a declared war I missed??
Ron wb1hga

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