Re: [Elecraft] K2 options wanted

[W3AB/GEO]

Hi all,

Now that I have a K2, there are a couple of options I'd like to install.

If anyone has any of the following, please respond off-list to w3ab at 
w3ab.org

Elecraft is backordered.

KAT2 Automatic Antenna Tuner
KNB2_KNB2 K2 Noise Blanker Option
K160RX 160M OPTION

---
73 de W3AB/GEO
AFA9GB

WA2LSI, KE6RJW, W7B, AAR9AG
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[Elecraft] K2 OPTIONS

[Robert 'RC' Conley]

SOLD PENDING FUNDS
Thanks All
73

-- 
The Morse be with youLive Long and Prosper
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[Elecraft] K2 options for sale

[Robert 'RC' Conley]

I have for sale K2 OPTIONS
that I decided not to install in my K2

KAT2 Elecraft price $219.95
KAF2Elecraft price $99.95
Toroid Guy prewound toroids for KAT2 $20.00
total cost to me was $339.90.

ASKING $250.00 and I'll pay shipping USPS
Priority mail CON US ONLY PAYPAL ONLY
WW5RC

-- 
The Morse be with youLive Long and Prosper
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Re: [Elecraft] K2 Options

[Al Gulseth]

Ted,

If you do decide to go the K2 route with the KPA100/KAT100, you might consider 
putting them _both_ external in one package via the EC2 enclosure.

Check Alan W3DVX's site:
http://wilcoxengineering.com/kpa100-in-ec2/

OR

Ken KE4RG's blog:
http://ke4rg.blogspot.com/2015/03/assembling-and-using-kpa100kat100-ec2.html

73, Al

On Sun September 6 2015 10:45:13 pm Dauer, Edward wrote:
> Still exploring options for a backup rig for the K3.   (The KX3 stays at
> the other QTH.)   Began looking into the K2.  The build sounds interesting.
>  One choice that has to be made is between the KDSP2 DSP filter and the
> KAF2 audio filter and clock.  Apparently it has to be one or the other -
> not both.  Any advice about that choice?  Anyone who chose one now wish
> they had done the other?  In case it matters I plan to operate CW only, and
> would probably go for the internal KPA100 and the external KAT100.  Thanks
> for whatever counsel might be offered . . .
>
> Ted, KN1CBR
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Re: [Elecraft] K2 Options

[Kenneth Christiansen]

Hi Ted and the group

I built my K2 in the spring of 2000 and put in most every option that was 
offered. I had the KAF2 first and kept it when I bought the KDSP2. I am glad I 
kept it as after a year or so I went back from the KDSP2 to the KAF2. I just 
never did like the sound of the KDSP2 and after I went back to the KAF2 was 
never sorry. I now have my K3 and KX3 so gave my K2 and all accessories to a 
local high school radio club after using it camping for 13 years. They are 
still using it and having a good time.

73 and good luck. Audio reception is personal so I have no way of knowing what 
would work out best for you.

Sent from my iPad

> On Sep 6, 2015, at 10:45 PM, Dauer, Edward  wrote:
> 
> 
> Still exploring options for a backup rig for the K3.   (The KX3 stays at the 
> other QTH.)   Began looking into the K2.  The build sounds interesting.  One 
> choice that has to be made is between the KDSP2 DSP filter and the KAF2 audio 
> filter and clock.  Apparently it has to be one or the other - not both.  Any 
> advice about that choice?  Anyone who chose one now wish they had done the 
> other?  In case it matters I plan to operate CW only, and would probably go 
> for the internal KPA100 and the external KAT100.  Thanks for whatever counsel 
> might be offered . . .
> 
> Ted, KN1CBR
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Re: [Elecraft] K2 Options

[Don Wilhelm]

Dauer,

If you operate mostly CW, you will find the KAF2 quite adequate.
But if you operate SSB in crowded band conditions (contests mostly), you 
will want to go with the KDSP2.

Both have the Real Time Clock included.

73,
Don W3FPR

On 9/6/2015 11:45 PM, Dauer, Edward wrote:

Still exploring options for a backup rig for the K3.   (The KX3 stays at the 
other QTH.)   Began looking into the K2.  The build sounds interesting.  One 
choice that has to be made is between the KDSP2 DSP filter and the KAF2 audio 
filter and clock.  Apparently it has to be one or the other - not both.  Any 
advice about that choice?  Anyone who chose one now wish they had done the 
other?  In case it matters I plan to operate CW only, and would probably go for 
the internal KPA100 and the external KAT100.  Thanks for whatever counsel might 
be offered . . .



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[Elecraft] K2 Options

[Dauer, Edward]

Re the filter options for a new K2 -

Thanks to all who replied, both on-list and off.  Very helpful, as always.

The order goes in today.

Ted, KN1CBR
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Re: [Elecraft] K2 Options

[Phil Kane]

On 9/6/2015 8:45 PM, Dauer, Edward wrote:

> In case it matters I plan to operate CW only, and would probably go
> for the internal KPA100 and the external KAT100.  Thanks for whatever
> counsel might be offered . . .

That's the set-up that I have and have been pleased with it (the rig
never leaves the house).  Too bad the antenna setup here is nowhere near
what the rig deserves.

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

>From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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Re: [Elecraft] K2 Options

[Jim Lowman]

The K2 is still handy for Field Day.
Until recently, our QRP group was almost 100% K2s.

A KX3 has since made an appearance, and one fellow brings his K3.

Maybe it would be better to say that the K2 design is almost 20 years old.

73 de Jim - AD6CW

On 9/6/2015 9:36 PM, Phil Wheeler wrote:

Jim,

I tend to agree, though the K2 is still a very credible rig. The K3 
replaced mine as my main station radio in early 2014.  Used K3 or even 
the TS-590S would be a good choice.


"it was designed before the turn of the century!" makes it sound like 
Marconi used it :-)


73, Phil W7OX



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Re: [Elecraft] K2 Options

[Phil Wheeler]

Jim,

I tend to agree, though the K2 is still a very 
credible rig. The K3 replaced mine as my main 
station radio in early 2014.  Used K3 or even the 
TS-590S would be a good choice.


"it was designed before the turn of the century!" 
makes it sound like Marconi used it :-)


73, Phil W7OX

On 9/6/15 9:27 PM, Jim Brown wrote:

On Sun,9/6/2015 8:45 PM, Dauer, Edward wrote:
Began looking into the K2.  The build sounds 
interesting.


I would do this ONLY if you really want to do 
the build. Otherwise, go with one of the many 
used K3s coming on the market, or if the cost is 
too much, with a TS590S.


The K2 is pretty big step down from a K3 or KX3 
-- it was designed before the turn of the 
century! By 2007 when the K3 hit the street, 
Wayne had learned a lot and had a lot of far 
more powerful components to work with.


73, Jim K9YC


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Re: [Elecraft] K2 Options

[Vic Rosenthal 4X6GP/K2VCO]

I had both but ended up keeping the audio filter. I think it's a matter 
of personal taste, so if you have the opportunity to try a K2 with those 
options, it's worthwhile.


73,
Vic, 4X6GP/K2VCO
Rehovot, Israel
http://www.qsl.net/k2vco/

On 7 Sep 2015 06:45, Dauer, Edward wrote:


Still exploring options for a backup rig for the K3.   (The KX3 stays
at the other QTH.)   Began looking into the K2.  The build sounds
interesting.  One choice that has to be made is between the KDSP2 DSP
filter and the KAF2 audio filter and clock.  Apparently it has to be
one or the other - not both.  Any advice about that choice?  Anyone
who chose one now wish they had done the other?  In case it matters I
plan to operate CW only, and would probably go for the internal
KPA100 and the external KAT100.  Thanks for whatever counsel might be
offered . . .

Ted, KN1CBR

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Re: [Elecraft] K2 Options

[lmarion]

I have built every K2 option there is. Definitely the KDSP2 is the way to 
go.  If you are going CW only, the QRO options are not needed, unless you 
are severely antenna restricted.



Leroy AB7CE 
K2 serial number 40


-Original Message- 
From: Dauer, Edward

Sent: Sunday, September 06, 2015 9:45 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K2 Options


Still exploring options for a backup rig for the K3.   (The KX3 stays at the 
other QTH.)   Began looking into the K2.  The build sounds interesting.  One 
choice that has to be made is between the KDSP2 DSP filter and the KAF2 
audio filter and clock.  Apparently it has to be one or the other - not 
both.  Any advice about that choice?  Anyone who chose one now wish they had 
done the other?  In case it matters I plan to operate CW only, and would 
probably go for the internal KPA100 and the external KAT100.  Thanks for 
whatever counsel might be offered . . .


Ted, KN1CBR
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Re: [Elecraft] K2 Options

[Jim Brown]

On Sun,9/6/2015 8:45 PM, Dauer, Edward wrote:

Began looking into the K2.  The build sounds interesting.


I would do this ONLY if you really want to do the build. Otherwise, go 
with one of the many used K3s coming on the market, or if the cost is 
too much, with a TS590S.


The K2 is pretty big step down from a K3 or KX3 -- it was designed 
before the turn of the century! By 2007 when the K3 hit the street, 
Wayne had learned a lot and had a lot of far more powerful components to 
work with.


73, Jim K9YC
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Re: [Elecraft] K2 Options

[Phil Wheeler]

I had both and use the DSP; a bit tricky to adjust 
though, but there is a user's guide to it 
somewhere (on the Elecraft website, I think). Once 
adjusted well the DSP is excellent.


Phil W7OX

On 9/6/15 8:45 PM, Dauer, Edward wrote:

Still exploring options for a backup rig for the K3.   (The KX3 stays at the 
other QTH.)   Began looking into the K2.  The build sounds interesting.  One 
choice that has to be made is between the KDSP2 DSP filter and the KAF2 audio 
filter and clock.  Apparently it has to be one or the other - not both.  Any 
advice about that choice?  Anyone who chose one now wish they had done the 
other?  In case it matters I plan to operate CW only, and would probably go for 
the internal KPA100 and the external KAT100.  Thanks for whatever counsel might 
be offered . . .

Ted, KN1CBR


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Re: [Elecraft] K2 Options

[Chuck Teague via Elecraft]

I've got to agree with Jim.  I have both the K2 and K3.  I enjoyed building
my K2 as much as anything I've done in ham radio, and I still find ways to
get in there and mess with it. It is a fine radio, BUT--the K3 is better in
every respect IMHO.  There are great bargains in used K3's coming on the
market almost daily.

However, if you decide on the K2, I would go for the DSP over the KAF.  It
is more versatile, but does have a different sound.

Chuck Teague
NN7U 



-
Chuck Teague
NN7U
--
View this message in context: 
http://elecraft.365791.n2.nabble.com/K2-Options-tp7607168p7607176.html
Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] K2 Options

[Dauer, Edward]

Still exploring options for a backup rig for the K3.   (The KX3 stays at the 
other QTH.)   Began looking into the K2.  The build sounds interesting.  One 
choice that has to be made is between the KDSP2 DSP filter and the KAF2 audio 
filter and clock.  Apparently it has to be one or the other - not both.  Any 
advice about that choice?  Anyone who chose one now wish they had done the 
other?  In case it matters I plan to operate CW only, and would probably go for 
the internal KPA100 and the external KAT100.  Thanks for whatever counsel might 
be offered . . .

Ted, KN1CBR
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[Elecraft] K2 options wanted.

[Phil Yates]

Hi.

Does anyone in the UK have the battery option for a K2 going spare, just
the bracket prefered.
and a KAT2 module, prefer built and tested. Good price paid.

Just taken delivery of a secondhand K2, most impressed. already had some 1W
contacts around EU.

Phil
G7BZD
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[Elecraft] K2 Options By Pass Kit

[John Kenney]

Thanks to all for the replies. I have located a kit and it will soon be 
on the way to me.  73, John
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[Elecraft] K2 options KDSP2 KAF2

[Scott McDowell]

Hi
I just received the KAF2  and the KDSP2 options for my K2 from the xyl as 
birthday presents (73rd).
I notice that both options have the real time clock. My question is what 
does the KAF2 option do
that the KDSP2 option doesn't do? Or, is there any reason to have both 
installed ?

Thanks
Scott N5SM

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Re: [Elecraft] K2 options KDSP2 KAF2

[John R. Lonigro]

Scott:
I suggest you return or sell the KAF2.  You can install EITHER the KAF2 
OR the KDSP2, but not both.  They both go in the same spot.  I don't 
have the KDSP2, so I can't compare the two, but I believe most people 
agree it is superior to the KAF2, although the KAF2 works pretty well if 
you are operating mainly CW.

73's,
John AA0VE

Scott McDowell wrote:

Hi
I just received the KAF2  and the KDSP2 options for my K2 from the xyl 
as birthday presents (73rd).
I notice that both options have the real time clock. My question is 
what does the KAF2 option do
that the KDSP2 option doesn't do? Or, is there any reason to have both 
installed ?

Thanks
Scott N5SM


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Re: [Elecraft] K2 options KDSP2 KAF2

[Don Wilhelm]

Scott,

Unless you do quite a bit of physical modification to the K2, you cannot 
use both of them - they both fit into the same physical space.


The KDSP2 has filtering with more selections than the KAF2, and adds 
noise reduction, and other neat functions unavailable for an analog 
filter such as the KAF2.


I prefer the KAF2 for CW because it is somehow easier on my ears than 
the KDSP2 - hard to explain, that is a very subjective assessment.  But 
for SSB, the KDSP2 wins hands down - the KAF2 only provides a low-pass 
filter for SSB while the KDSP2 has several quite usable functions as 
well as filtering in SSB.


73,
Don W3FPR

Scott McDowell wrote:

Hi
I just received the KAF2  and the KDSP2 options for my K2 from the xyl 
as birthday presents (73rd).
I notice that both options have the real time clock. My question is what 
does the KAF2 option do
that the KDSP2 option doesn't do? Or, is there any reason to have both 
installed ?

Thanks
Scott N5SM

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Re: [Elecraft] K2 options KDSP2 KAF2

[Bob Nielsen]

On May 26, 2007, at 9:40 AM, Scott McDowell wrote:


Hi
I just received the KAF2  and the KDSP2 options for my K2 from the  
xyl as birthday presents (73rd).
I notice that both options have the real time clock. My question is  
what does the KAF2 option do
that the KDSP2 option doesn't do? Or, is there any reason to have  
both installed ?

Thanks
Scott N5SM



The KAF2 and KDSP2 cannot both be installed in a K2.  They use the  
same connector and provide some of the same functions (clock and  
audio filtering).  However, the KDSP2 has beat cancellation and noise  
reduction plus there are more filter settings, which can be varied  
via the menu.


73, Bob N7XY


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Re: [Elecraft] K2 options KDSP2 KAF2

[Leigh L Klotz, Jr.]

Scott,
Even if you choose to install the DSP, the current draw of the KAF2 is 
lower, so you may want to keep it to swap in for those situations if you 
do much portable operating.  The KDSP2 can be turned off, but it starts 
up back on again when you turn your K2 off and on.

73,
Leigh/WA5ZNU
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RE: [Elecraft] K2 Options - when?

[Chris Kantarjiev]

I've just added KNB2, KSB2 and KAT2 to s/n 3641, a basic CW K2.

KNB2 requires access to the top and bottom of the RF board - easy,
just the top and bottom cover.

KSB2 requires the same access - some of the work is a little more
crowded (just like the KSB2 itself). It *also* requires that you
add some components to the front panel board (and, while you're in
there, ground the mic jack, too!).

KAT2 requires that you remove the heat sink, which means fiddling the
PA transistors. You might want to put the aux RF connector in now,
if you have it already.

None of it was at all difficult. 

73 de chris K6DBG
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RE: [Elecraft] K2 Options - when?

[thom2]

Ron makes a good point, although I wouldn't consider it to be intimidating, it 
is a pain to get the heat sink back on. The finals are held by screws which are 
difficult for fat fingers to keep in place (I finally realized that I should 
use a piece of electrical tape to hold them down).  Also, make sure you re-test 
the finals for shorts to ground.  I try to consolidate my trips under the heat 
sink as this is my least favorite part of going under the hood.

GL
Tom
WB2QDG
K2 1193


 
  
 
 
 The only disassembly anyone has grumbled about that I've seen is in removing
 the part of the bottom cover used for the final amplifier heat sink, since
 some hardware is attached to it. I have done it many times without any
 bother, but some folks find it intimidating. 
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[Elecraft] K2 Options - when?

[Fred (FL)]

Hi -

As I just finished K2 #5422 Control Board, and Front
Panel ( got good AOK resistance checks) - I'm
wondering
as I start on RF Board - just how much REWORK is it to
add NOISE BLANKER and SSB OPTION to my K2, after the
base K2 is completed?

Is it a major take-apart operation, to add these
options after the base K2 is up and running and all
buttoned up in its case, etc.?

I guess I'm fearing having to dissassemble circuit
boards, and take all stuff back apart - just to add
options.  I can't imagine having to take the RF PCB
back out - once its all in and running.

How hard will it be OR should I add the complexity of
NOISE BLANKER and SSB OPTION, now as I build the basic
K2?

Thanks,
Fred N3CSY
FL

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RE: [Elecraft] K2 Options - when?

[Ron D'Eau Claire]

Fred, N3CSY asked:

I'm wondering as I start on RF Board - just how much REWORK is it to add
NOISE BLANKER and SSB OPTION to my K2, after the base K2 is completed?

Is it a major take-apart operation, to add these options after the base K2
is up and running and all buttoned up in its case, etc.?

I guess I'm fearing having to disassemble circuit boards, and take all stuff
back apart - just to add options.  I can't imagine having to take the RF PCB
back out - once its all in and running.

How hard will it be OR should I add the complexity of NOISE BLANKER and SSB
OPTION, now as I build the basic K2?

--

Build the basic rig, make sure everything works FB, then add the options. 

NOTHING requires pulling the RF board out. The Elecraft enclosures let you
get at everything by just pulling individual enclosure panels. The most
complicated disassembly is in the front panel where the control and
front-panel boards are stacked, and it comes off as a unit. 

The SSB and Noise Blanker only require removing one part of the bottom
cover. Very easy.  

The only disassembly anyone has grumbled about that I've seen is in removing
the part of the bottom cover used for the final amplifier heat sink, since
some hardware is attached to it. I have done it many times without any
bother, but some folks find it intimidating. The only options that requires
you remove that part of the cover is to install the 160 meter option board
and, if I recall correctly, the K60XV interface that provides coverage of
the 60 meter frequencies available for Ham SSB and an optional low-level
interface for the XV50, XV144, XV222 or XV432 transverters. 

Ron AC7AC

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