Re: [Elecraft] [KAT1] 1N34 Diode replacement

2008-10-22 Thread kratchkov
I don't know if we're talking about the same diode.

The broken diode is not in the bridge used to measure fwd/rfl power.

I'm talking about D3, connecting the output of the buffer op-amp U2A to the
RFDET/DATA pin on P2. I don't know what it's for (what is RFDET/DATA ? I don't
have the K1 schematics right here).

I suppose I'll use a low-drop schottky, like 1N5711,

thanks to everyone for the advice

73,

matthias HB9EGM

Tom Hammond wrote:
 Matthias:
 
 The 1N34 diode on my KAT has its glass broken.  With what kind of
 diode can I
 replace it?  What kind of characteristics does it need?
 
 In most instances a 1N5711 will be an acceptable replacement. But
 REPLACE BOTH
 diodes, not just the broken one. Important to have similar diodes on each
 side of the bridge.
 
 73,
 
 Tom Hammond   N0SS
 
 
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Re: [Elecraft] [KAT1] 1N34 Diode replacement

2008-10-22 Thread David Woolley (E.L)

kratchkov wrote:


The 1N34 diode on my KAT has its glass broken.  With what kind of diode can I
replace it?  What kind of characteristics does it need?


The best replacement is probably one ordered from Elecraft.  They should 
only charge letter post shipping for something like that.


However, it is a germanium point contact diode.  (Schottky signal diodes 
are almost as good, and I believe that is what is actually used in some 
of the more recent Elecraft designs.)


--
David Woolley
The Elecraft list is a forum for the discussion of topics related to 
Elecraft products and more general topics related ham radio

List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm
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RE: [Elecraft] K3 is really a computer radio

2008-10-22 Thread Barry Simpson
I have quintuple band stacking memories. I use the first ten memories
programmed in strict band order (you soon get used to which band is which
button) at 1kHz up from the band edge. I then have the four M1 to M4 buttons
programmed at four frequencies within each band, two CW and two SSB.

This gives me the ability to do very rapid band and frequency/mode within
band changes. Admittedly it takes two button pushes each time but I don't
really think that is much of an imposition.

73

Barry  VK2BJ


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Brett Howard
Sent: 21 October 2008 17:54
To: 'Charles Harpole'; 'Monty Shultes'; 'Rick Tavan N6XI';
elecraft@mailman.qth.net
Subject: RE: [Elecraft] K3 is really a computer radio

There are band stacking memories and you can use the first 10 memories as
quick access memories (and if you're smart) band buttons.  Its all there you
just have to learn to use it.

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Charles Harpole
Sent: Sunday, October 19, 2008 7:55 PM
To: Monty Shultes; Rick Tavan N6XI; elecraft@mailman.qth.net
Subject: RE: [Elecraft] K3 is really a computer radio


As a proud appliance operator, I want 

ease of use and punching in 1421400 plus

mode and split and then entering the B

split freq directly is

just too much to ask of little me.

Sure, u can use the rig from the 

existing front panel, but my point, 

sweat or no sweat, is that the thing

is hard to use that way.

Oh, for band stacking registers and

band buttons.


Charles Harpole


[EMAIL PROTECTED]









From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]; elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 is really a computer radio
Date: Sun, 19 Oct 2008 10:31:02 -0400
CC:





Charles must have been pretty tired at 1:17 AM EDT.  I believe he lives in
Texas.  Perhaps perspiration from a long neck trickled into his eyes and
made vision difficult, and he forgot about direct frequency entry.
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Re: RE: [Elecraft] K3 is really a computer radio

2008-10-22 Thread d.cutter
Barry

I'd be interested to know why you don't aim your starting point in the first 
memory bank onto one of the target frequencies that you put into the second 
bank.

David
G3UNA
 
 
 
 I have quintuple band stacking memories. I use the first ten memories
 programmed in strict band order (you soon get used to which band is which
 button) at 1kHz up from the band edge. I then have the four M1 to M4 buttons
 programmed at four frequencies within each band, two CW and two SSB.
 
 This gives me the ability to do very rapid band and frequency/mode within
 band changes. Admittedly it takes two button pushes each time but I don't
 really think that is much of an imposition.
 
 73
 
 Barry  VK2BJ
 

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Virus-checked using McAfee(R) Software and scanned for spam

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[Elecraft] K3 at KH6LC in Stew warm up

2008-10-22 Thread Robert Mccormack
Hi Curt,
Your signal was the strongest I heard during my 1.5 hours in the 'warm up' - 
paddle-sent CW was fine, but computer CQ sounded like it needed more weight.
I wonder which logging program you were using?

73,
Ken ZL1AIH
K3 #320 (plus #321 at ZM1A)
 


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[Elecraft] [K3] More PF keys - resend

2008-10-22 Thread David Ferrington, M0XDF
I sent this over a month ago and had no response at all as far as I  
know - I'm not expecting a response or direct reply from Wayne et'al -  
they have plenty to do, but I'm surprised others didn't shoot me down  
in flames or comment?



I've been meaning to send this for a while, but it’s a wish that  
should probably be some way down the list (I'd prefer Ultimatic keying  
first :-)


Unless I am mistaken, there are only 2 PF keys if you wish to use the  
M1-M4 for message play, which I plan on when I get the KDVR3, so I've  
avoided using them from day one (might have been a mistake). I'd like  
to have more programmable function buttons.


One way of doing this could be an option to make PF1 and PF2  
introductory buttons, where by you HOLD PFx followed by a TAP of a  
number key 0-9, that would give two banks of ten keys.


The only issue then is that you have to HOLD PFx. Now, I don't tend to  
use RIT or XIT much (maybe I should, maybe they are used more in CW  
which I've not got into yet), so my suggestion is that there is also  
an option to switch the TAP/HOLD function of PF1 and PF2, so TAP  
introduces memory functions and HOLD is RIT/XIT.


I'd be interested in this last possibility as an option, even if the  
banks of 10 programmable function keys could not be done.


To summarise I'm suggesting:

+ a CONFIG option to switch the PF keys from single key to group key,  
maybe CONFIG:PFX GRP=OFF (the default) and CONFIG:PFX GRP=ON


+ if CONFIG:PFX GRP=ON, the numeric keys contain 10 functions for each  
of PF1  PF2, introduced by a PF key, no need for a terminating key,  
you just get 10 memories per PF key


+ a CONFIG option to switch RIT/XIT and PF1/PF2 TAP/HOLD function,  
maybe CONFIG:PFX TAP=OFF (the default) and CONFIG:PFX TAP=ON.



Also, one reason why I want more programmable keys is for B-A, one  
solution would be to allow us to  configure XFIL to be be B-A  
instead. I haven't used XFIL since I first tried it, so being able to  
say CONFIG:XFIL=nor or CONFIG:XFIL=BA or ALT might be an option.


Yes, it's easy to suggest these things after the fact - maybe I just  
need to learn to use the MENU more. Ah, the other option is to allow  
us to promote CONFIG option to the MAIN MENU, rather like short menus/ 
my menu options?


73 de M0XDF, K3 #174
--
It came to me that reform should begin at home, and since that day I  
have

not had time to remake the world. -Will Durant, historian (1885-1981)

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RE: RE: [Elecraft] K3 is really a computer radio

2008-10-22 Thread Barry Simpson
Hi David

That's just the way I decided to set it up. I have 025 programmed in to M2.

73

Barry  VK2BJ

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
Sent: 22 October 2008 09:31
To: Barry Simpson; 'Brett Howard'; 'Charles Harpole'; 'Monty Shultes'; 'Rick
Tavan N6XI'; elecraft@mailman.qth.net
Subject: Re: RE: [Elecraft] K3 is really a computer radio

Barry

I'd be interested to know why you don't aim your starting point in the first
memory bank onto one of the target frequencies that you put into the second
bank.

David
G3UNA


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Re: [Elecraft] K3 at KH6LC in Stew Warmup

2008-10-22 Thread Bill W4ZV


Curt Knight wrote:
 
 
Considering recent posts, maybe you would be interested to hear about
 the setup we used at KH6LC during the Stew Warmup.  I brought my K3 SN
 469, which has 2.7, 1.8, and 0.4 filters in the main and matched 2.7
 and 0.4 in the sub. Now I know that I should have sprung for the other
 1.8 filter and saved myself the labor of installing it later. 
 
 Snip
 
The roofing filter mismatch between 400 Hz and 1800 Hz bandwidth was
 sometimes noticeable, but it wasn't a big thing.  One mod I would like
 to see would be an option to have the subreceiver bandwidth and shift
 track the main as it's an aggravation to have to double click the AB
 when you want that.  Of course, you would like the option of having
 them separate, too.
 
 ???  What firmware were you using.  Everything in the Sub's DSP should
 track the Main when in Diversity mode.  Your comment about filters is also
 confusing.  If you had DSP set to 400 or below, both roofing filters
 should have been 400 Hz.  If just above 400 Hz DSP, you would have had
 1.8k in the Main and 2.7k in the Sub.  If you didn't like the offset
 effect, you could have disabled the 1.8k in the main so that both 2.7k
 filters would have been enabled above 400 Hz DSP BW.
 
This K3 was the subject of a post last week (Bad CW Note) and I can
 report that this problem seemed to us to not be present last weekend,
 but those of you who heard us may tell a different story and if so I
 would be happy to hear from you directly.  In between the post and the
 weekend, I had partly disassembled the case to look into putting a
 strap directly from the antenna tuner RF ground to the rear panel
 connectors, but I decided I didn't have the time to finish so I just
 replaced the panels, and maybe that improved the ground.  On the other
 hand, we did get bad reports on the CW keying.  One report said that
 it sounded like the keying was soft.  Another report said
 distinctive, but not fatally obnoxious.  It appears now that this is
 a problem mainly with the computer keying from the rear panel jack,
 and not the CW generated from the internal keyer, and that it may be
 connected to the TX DLY setting that I had at its maximum value to
 accommodate my old TL922 linear.  I have backed the setting off to 15
 and the CW weight looks more consistent on my scope now.  At KH6LC
 there is a modern linear and the nominal value should be enough.  We
 are still looking into this and also the buzz on the note and the
 story may change.
 

You may want to check that the RX ANT port in the KXV3 has had the RX
Isolation Mod installed.  If not, you may have been getting RF feedback into
the K3 via the RX ANT input.

http://www.elecraft.com/K3/k3_app_notes.htm

73,  Bill  W4ZV

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[Elecraft] Re: PF KEYS

2008-10-22 Thread David Ferrington, M0XDF
Oh, and you can use HOLD M1-M4 too, so there are actually 10 PF keys,  
provided you don't want to use M1-M4 for anything else. That includes  
Bank 2.

so if you want to use M1-M4 for a message, you can't use it as a PF key.

Not sure how DVR memories will co-exist with CW memories - I hope by  
mode, but until it ships, I won't know.


And although that may be far to complicated for some, it's not for me.  
And I did say it should be an option controlled by Config, so those  
that don't like the idea, don't have to use it.

Sorry to belabour the point.
73 de M0XDF, K3 #174
--
Always remember, half the people in the world are above average  
intelligence!


On 22 Oct 2008, at 14:27, Ron Durie wrote:

The PF keys and all four M1 – M4 keys are available as PF keys.   
This gives you 6 total.  That is a good number.


Keep it simple.  What you are suggesting is much too complicated for  
the user as well as the designers.


The M1- M4 keys are still available as CW memories; DVR memories;  
and Band Stacking memories.


It is really a neat memory system once you get the hang of it.  HI.

73's   RonDurie
[EMAIL PROTECTED]
www.duries.com/DurieElectronics.htm



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Re: [Elecraft] K3 at KH6LC in Stew Warmup

2008-10-22 Thread Bill W4ZV



Bill W4ZV wrote:
 
 ???  What firmware were you using.  Everything in the Sub's DSP should
 track the Main when in Diversity mode.  Your comment about filters is also
 confusing.  If you had DSP set to 400 or below, both roofing filters
 should have been 400 Hz.  If just above 400 Hz DSP, you would have had
 1.8k in the Main and 2.7k in the Sub.  If you didn't like the offset
 effect, you could have disabled the 1.8k in the main so that both 2.7k
 filters would have been enabled above 400 Hz DSP BW.
 

Just to clarify, see the ### bracketed comments below:

**
MCU 2.31 / DSP 1.89, 8-28-08

New Features and Enhancements:
Snip
* DIVERSITY RECEIVE MODE: If you have the sub receiver (KRX3 option)
installed, 
you can take advantage of “diversity receive” by using two separate
receiving antennas.
This can improve signal copy during fading, and adds a spatial (L/R) effect
to signals.
###DIVERSITY MODE further enhances this capability by slaving the sub
receiver’s 
mode, filter settings, and VFO to the main receiver.### To enter diversity
mode, hold
SUB until you see “DIVRSTY” on VFO B (about 2 seconds). The kHz decimal
point
of the VFO A display will flash slowly as a reminder that diversity mode is
in effect.
Snip
**

Diversity mode copies Main DSP settings including WIDTH, SHIFT, RIT offsets,
etc. to the Sub.  Of course it cannot correct for different XFILs between
the Main and Sub, but you can disable any filters in Main that are not in
the Sub if desired.  In my case, I have 2.7k/1.8k/500/200 in Main and
2.7k/500 in Sub.  If I set WIDTH to 250 Hz, the 200 will be enabled in Main
but only the 500 will be enabled in Sub.  I have personally not noticed any
warble when using the 200/500 combination even though the filter offsets
differ by 130 Hz (-.91 for the 200 vs -.78 for both 500s).

73,  Bill

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Re: [Elecraft] K3 - KRX3

2008-10-22 Thread Björn Mohr

On 21 okt 2008, at 15.58, Bill W4ZV wrote:


Aha!  So it was you with that strange callsign Bjorn!  I've never  
heard an
SE0 before and my brain/ears were trying to make sense of it as I  
was

madly switching antennas to try to peak the signal.


Yes that was me. I was using 7S0X previously and it was very confusing  
on SSB and looong for CW. But yes, I understand exactly what you  
mean... The DSP behind your ears needs a firmware upgrade Bill! :)


I also have the 2.7k and 500 in both RXs for diversity, but  
additionally
have the 1.8k and 200 in my Main for serious contesting.  I've found  
that
even using the 200 in Main and 500 in Sub does not cause serious  
problems in
diversity, even though the filters have different offsets...but this  
might

not be the case for everyone.


I have a similar setup with the difference that my narrow SSB filter  
is 2.1kc. I don't notice any serious problems except that my SUB RX  
mutes when having different filers selected and narrowing down the  
passband excessively. To be pure I guess I have to turn off any filter  
not available in the sub RX when doing diversity RX. On the other  
hand, it should be possible to have the firmware pich only the filters  
available in the in both RX.


73 de Björn,
SM0MDG
SE0X

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[Elecraft] K3 SSB is it really better

2008-10-22 Thread rmthorne
I'm curious what others are finding with the K3 on SSB in contest conditions.  
I've had mine for a few months and the difference between my mkv and the K3 is 
like night and day on cw.  

I havn't had a chance to really test it out on SSB.  I'm getting ready to 
travel to K5NA's for CQWW and I wonder if its worth taking to replace a ProIII 
or MKV on 20 meters which will be the money band (unless 15m opens up).  

20m will be a mess and I'd like to think the K3 will help with crowded band 
conditions.

Thanks

Rich - N5ZC
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[Elecraft] K3 What mics are proplr using for SSB?

2008-10-22 Thread rOn
Looking to find what people are using for SSB mics.

Thanks

rOn

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[Elecraft] K3 SSB is it really better

2008-10-22 Thread rmthorne
I'm curious what others are finding with the K3 on SSB in contest conditions.  
I've had mine for a few months and the difference between my mkv and the K3 is 
like night and day on cw.  

I havn't had a chance to really test it out on SSB.  I'm getting ready to 
travel to K5NA's for CQWW and I wonder if its worth taking to replace a ProIII 
or MKV on 20 meters which will be the money band (unless 15m opens up).  

20m will be a mess and I'd like to think the K3 will help with crowded band 
conditions.

Thanks

Rich - N5ZC
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[Elecraft] K2-Transmit problems

2008-10-22 Thread Ron McCurdy
At first I had no transmit.  I found the problem in T2 where the winding
wire had not made a good connection.  Now, I have 17.4 watts power no matter
what I do.  The V-Power signal from U8 Pin 2 on the Control Board is 0.00 in
Tune.  Changing the Power setting has no effect on the Power readout.  I
started signal tracing the Transmitter and at D7 found 0.034 in Tune.
Before I had the correct 7.67.  So, is this where the problem is or is it
more serious???  Any help appreciated!

 

Ron, KE5QDA

K2 6585 in build

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Re: [Elecraft] K3 SSB is it really better

2008-10-22 Thread Barry N1EU



rmthorne wrote:
 
 I'm curious what others are finding with the K3 on SSB in contest
 conditions.  I've had mine for a few months and the difference between my
 mkv and the K3 is like night and day on cw.  
 
I think the K3 with 1.8Khz filter throttled down as narrow as
intelligibility allows will be the perfect ticket for 20M this weekend.

73,
Barry N1EU

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RE: [Elecraft] K3 What mics are proplr using for SSB?

2008-10-22 Thread Bruce McLaughlin
I use a Heil proset with very good results.

Bruce - W*FU

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of rOn
Sent: Wednesday, October 22, 2008 10:56 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 What mics are proplr using for SSB?

Looking to find what people are using for SSB mics.

Thanks

rOn

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Re: [Elecraft] K3 What mics are proplr using for SSB?

2008-10-22 Thread Julian, G4ILO



Ronald Pfeiffer wrote:
 
 Looking to find what people are using for SSB mics.
 
 Thanks
 
 
If you scan the archives I think you'll find the answer is everything from
Heil products to computer gaming headsets.

-
Julian, G4ILO. K2 #392  K3 #222.
http://www.g4ilo.com/ G4ILO's Shack   http://www.ham-directory.com/ Ham
Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 
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Re: [Elecraft] K3 mobile

2008-10-22 Thread KM5Q
There are at least two ferrite core transformers in the K3 that are  
supported only by their thin wires. I'm concerned that they may not  
survive a mobile environment. It would take only a dab of RTV  
(silicone adhesive sealant) to secure them, but I don't know if this  
has been discusses or approved.


Windy KM5Q
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Re: [Elecraft] K3 What mics are proplr using for SSB?

2008-10-22 Thread David Ferrington, M0XDF

Same here, the on sold for the K2/K3
--
I never did a day's work in my life; it was all fun. -Thomas Edison

On 22 Oct 2008, at 16:23, Bruce McLaughlin wrote:


I use a Heil proset with very good results.

Bruce - W*FU

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of rOn
Sent: Wednesday, October 22, 2008 10:56 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 What mics are proplr using for SSB?

Looking to find what people are using for SSB mics.


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Re: [Elecraft] K3 What mics are proplr using for SSB?

2008-10-22 Thread dalspaugh
Heil Pro 5


73 Doug N3QW


 -- Original message --
From: rOn [EMAIL PROTECTED]
 Looking to find what people are using for SSB mics.
 
 Thanks
 
 rOn
 
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Re: [Elecraft] K3 - KRX3

2008-10-22 Thread alsopb

Well, taking apart a perfectly working radio is bound to be barrier to doing
this.

Had my concerns too.

Put it in today.  Seems to work AOK. 

One step in the manual that saved my butt was check for connectors that may
have pulled out during the subrx assembly install.   Indeed one did. 
Routing the tiny coax cables to install it was somewhat of a pain.

The experiences of others reported here helped to smooth out rough spots.

73 de Brian/K3KO






After reading all of the stories of problems with the KRX3, I've decided not
to install the one I received a couple of months ago. I originally planned
to wait and see how other installations played out especially after reading
that the front panel had to be removed and messed with in order to do the
KRX3 installation. That's the last thing I wanted to do. I took extreme care
with the front panel during the initial kit assembly a
-- 
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Re: [Elecraft] K3 What mics are proplr using for SSB?

2008-10-22 Thread mzilmer

Heil Gold Line. Narrow and Wide settings are both fbom. Narrow really cuts through the pileups.matt, W6NIAOct 22, 2008 10:11:40 AM, [EMAIL PROTECTED] wrote:Looking to find what people are using for SSB mics.ThanksrOn___Elecraft mailing listPost to: Elecraft@mailman.qth.netYou 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.htmElecraft web page: http://www.elecraft.com
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RE: [Elecraft] K3 SSB is it really better

2008-10-22 Thread Ed Muns
 I think the K3 with 1.8Khz filter throttled down as narrow as 
 intelligibility allows will be the perfect ticket for 20M 
 this weekend.

I agree.  My K3s are throttled down to 1.5 kHz.

73,
Ed - W0YK

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Re: Re: [Elecraft] K3 mobile

2008-10-22 Thread mzilmer

I have seen the use of dope, sealers and so on strongly discouraged by Elecraft.matt, W6NIAOct 22, 2008 10:30:51 AM, [EMAIL PROTECTED] wrote:There are at least two ferrite core transformers in the K3 that are  supported only by their thin wires. I'm concerned that they may not  survive a mobile environment. It would take only a dab of RTV  (silicone adhesive sealant) to secure them, but I don't know if this  has been discusses or approved.Windy KM5Q___Elecraft mailing listPost to: Elecraft@mailman.qth.netYou 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.htmElecraft web page: http://www.elecraft.com
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[Elecraft] K3 What mics are proplr using for SSB?

2008-10-22 Thread Dave G4AON
Ron, almost anything works well. I started off using a Kenwood MC-43S 
fist mic as used on the TS570 and similar transceivers, they are very 
low cost and reasonable quality. I now use a Sony home audio recording 
mic on a floor stand with a cheap foot switch. The microphone is perhaps 
not ideal as it is stereo, battery powered, electret and quite 
expensive, but I had it knocking around and it sounds good! I needed to 
use a 3.5mm stereo to 3.5mm mono adapter. The model is ECM-MS907. I am 
not suggesting anyone specifically goes out and buys one of these.


73 Dave, G4AON
K3/100 #80
=
Looking to find what people are using for SSB mics.

Thanks

rOn
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Re: [Elecraft] K3 SSB is it really better

2008-10-22 Thread David F. Reed

Rich,

I will be using my K3 rather than my usual 7800 this weekend, so I can 
give you a better report then, but that I am willing to do it speaks 
something to that; so far my experience has been good enough to warrant it.


What bands will you be working at Richard's?

73 de Dave, W5SV

[EMAIL PROTECTED] wrote:
I'm curious what others are finding with the K3 on SSB in contest conditions.  I've had mine for a few months and the difference between my mkv and the K3 is like night and day on cw.  

I havn't had a chance to really test it out on SSB.  I'm getting ready to travel to K5NA's for CQWW and I wonder if its worth taking to replace a ProIII or MKV on 20 meters which will be the money band (unless 15m opens up).  


20m will be a mess and I'd like to think the K3 will help with crowded band 
conditions.

Thanks

Rich - N5ZC
  

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Re: [Elecraft] K3 KatieGram

2008-10-22 Thread Eric Swartz - WA6HHQ, Elecraft
We sped up production. :-)

Eric
_..._
-Original Message-
From: Kevin Rowett [EMAIL PROTECTED]
Date: Tuesday, Oct 21, 2008 8:11 pm
Subject: Re: [Elecraft] K3 KatieGram

I don't have as good of a tail, but...

I ordered 81/4, received Katie gram Oct 21st.  I expected
middle of December.  Either Elecraft has sped up production,
or orders have fallen off...


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[Elecraft] from John K3JK

2008-10-22 Thread John Klokis
hi everyone, would like to ask the group about a problem.   I had no problem 
with my K2 connecting with my N4PY software before a KAT/100 update from 1.09 
to 1.10.   ever since the update and service to the radio, I can not connnect 
with my control software.  Even with ham radio delux, it locates the comport, 
but when trying to connect with frequency on radio, the program can not. Has 
anyone run into this problem before?  John K3JK___
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Re: [Elecraft] [KAT1] 1N34 Diode replacement

2008-10-22 Thread kratchkov
Great! I just found a OA95, so I replaced the diode.

Thanks for all the advice, wish you nice QSOs,

73

Matthias HB9EGM

Tim Heasman wrote:
 Hi Matthias,
 
 My little books has the following:
 aa118 aa134 aa144, oa85 oa91 oa95, or in618.
 It is 75V 5mA and germanium I think.
 
 73
 
 tim
 gm4lmh
 
 - Original Message - From: kratchkov [EMAIL PROTECTED]
 To: elecraft@mailman.qth.net
 Sent: Tuesday, October 21, 2008 5:49 PM
 Subject: [Elecraft] [KAT1] 1N34 Diode replacement
 
 
 Hello group,

 The 1N34 diode on my KAT has its glass broken.  With what kind of
 diode can I
 replace it?  What kind of characteristics does it need?

 73

 Matthias hb9egm
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Re: [Elecraft] K3 SSB is it really better

2008-10-22 Thread Andrew Faber

Rich,
 I've used the K3 in both SSB and CW contests from P49Y.  SSB works great, 
in part because it retains very good intelligibility when cranked down 
pretty narrow (i.e., below 2.0 kHz).  It seems to work better to use the Hi 
and Lo mode instead of Shift and Width.
 OTOH, for CW, the rx is really great because of the ability to disregard 
strong adjacent signals.  While that performance capability exists in SSB 
also, in a contest it isn't as dramatic an improvement over other receivers 
for the simple reason that in SSB, much of the interference you are trying 
to eliminate is really in the passband.  It's splatter and distortion 
products from adjacent signals, many of which may have their processors 
turned way up.  The K3 doesn't generate the digital byproducts as my Pro2 
does, and that is helpful, but there remains the real interference caused 
by the other signals.  So the net improvement from the great rx qualities 
doesn't turn out to be as useful in SSB as in CW.  In other words, the bands 
are still a mess in a major SSB contest, and the best rx in the world can't 
eliminate all the mess.

 73, andy, ae6y
- Original Message - 
From: [EMAIL PROTECTED]

To: elecraft@mailman.qth.net
Sent: Wednesday, October 22, 2008 7:42 AM
Subject: [Elecraft] K3 SSB is it really better


I'm curious what others are finding with the K3 on SSB in contest 
conditions.  I've had mine for a few months and the difference between my 
mkv and the K3 is like night and day on cw.


I havn't had a chance to really test it out on SSB.  I'm getting ready to 
travel to K5NA's for CQWW and I wonder if its worth taking to replace a 
ProIII or MKV on 20 meters which will be the money band (unless 15m opens 
up).


20m will be a mess and I'd like to think the K3 will help with crowded 
band conditions.


Thanks

Rich - N5ZC
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Re: [Elecraft] from John K3JK

2008-10-22 Thread David Wilburn
Have you confirmed that the port settings in Winders, the application, 
and the radio all match?


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




John Klokis wrote:
hi everyone, would like to ask the group about a problem.   I had no 
problem with my K2 connecting with my N4PY software before a KAT/100 
update from 1.09 to 1.10.   ever since the update and service to the 
radio, I can not connnect with my control software.  Even with ham radio 
delux, it locates the comport, but when trying to connect with frequency 
on radio, the program can not. Has anyone run into this problem before?  
John K3JK





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Re: [Elecraft] K3 SSB is it really better

2008-10-22 Thread David Wilburn
Thanks for the very clear explanation Andrew.  I had not been as 
impressed with my K3 in SSB with the 1.8 filter, as I had in CW.  But 
your points are well made and explain the issue well.  This has been 
my experience in SSB also.


David Wilburn
NM4M
http://www.nm4m.com
http://www.k4rc.net




Andrew Faber wrote:

Rich,
 I've used the K3 in both SSB and CW contests from P49Y.  SSB works 
great, in part because it retains very good intelligibility when cranked 
down pretty narrow (i.e., below 2.0 kHz).  It seems to work better to 
use the Hi and Lo mode instead of Shift and Width.
 OTOH, for CW, the rx is really great because of the ability to 
disregard strong adjacent signals.  While that performance capability 
exists in SSB also, in a contest it isn't as dramatic an improvement 
over other receivers for the simple reason that in SSB, much of the 
interference you are trying to eliminate is really in the passband.  
It's splatter and distortion products from adjacent signals, many of 
which may have their processors turned way up.  The K3 doesn't generate 
the digital byproducts as my Pro2 does, and that is helpful, but there 
remains the real interference caused by the other signals.  So the net 
improvement from the great rx qualities doesn't turn out to be as useful 
in SSB as in CW.  In other words, the bands are still a mess in a major 
SSB contest, and the best rx in the world can't eliminate all the mess.

 73, andy, ae6y
- Original Message - From: [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Wednesday, October 22, 2008 7:42 AM
Subject: [Elecraft] K3 SSB is it really better


I'm curious what others are finding with the K3 on SSB in contest 
conditions.  I've had mine for a few months and the difference between 
my mkv and the K3 is like night and day on cw.


I havn't had a chance to really test it out on SSB.  I'm getting ready 
to travel to K5NA's for CQWW and I wonder if its worth taking to 
replace a ProIII or MKV on 20 meters which will be the money band 
(unless 15m opens up).


20m will be a mess and I'd like to think the K3 will help with crowded 
band conditions.


Thanks

Rich - N5ZC
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[Elecraft] K3 #2003 arrives!

2008-10-22 Thread Randy Moore
Ordered August 2, Katiegram October 16, shipped October 20, arrived 
October 22 in Huntsville, AL!


They Aptos folks have broken the 2000 mark with K3's!

Now to the fun part!!

73,
Randy, KS4L
K2 #337
K3 #2003
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[Elecraft] K3: CWT and Volume wish list

2008-10-22 Thread Larry Naumann

I have a couple of minor things that I would like to see included if at all
possible.
  The first is the CWT feature. I wish it would stay on when I swap bands or
go to SSB then back to CW.
Being king of tone deaf this is a great feature for me but it always toggles
off.
   The second item has to do with my hearing also. Being an old fart, my
left ear is not as good as my right. It would be nice to be able to balance
the left and right channel to account for this. I am sure the AFX feature
would work better. I know I can add an outboard control to do this but I
like a clean setup without a bunch of extr wires and controls hanging
around.

   I also want to say how much I like running PSK with the paddles, I've had
a lot of fun with that feature.
Also getting ready to put in the KRX3 module, this ought to really add to
the radio.
Thanks for a great product.
Larry Naumann  N0SA
-- 
View this message in context: 
http://n2.nabble.com/K3%3A-CWT-and-Volume-wish-list-tp1365083p1365083.html
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Re: [Elecraft] K3 mobile

2008-10-22 Thread Bob




OK...  May I ask why?

I have seen it done in commercial products and I recently did it when I
was assembling
my SoftRock receivers because of my concerns with the #30 wire breaking.

The two reasons I might think of would be any detuning effect or fear
of the material used
attacking the wire insulation.  

Any wisdom on this subject out there?    I did not see or am not aware
of the Elecraft
advisory.

73,
Bob
K2TK


[EMAIL PROTECTED] wrote:

  
I have seen the use of dope, sealers and so on strongly discouraged by
Elecraft.
matt, W6NIA
  
  
Oct 22, 2008 10:30:51 AM, [EMAIL PROTECTED] wrote:
  There
are at least two ferrite core transformers in the K3 that are 
supported only by their thin wires. I'm concerned that they may not 
survive a mobile environment. It would take only a dab of RTV 
(silicone adhesive sealant) to secure them, but I don't know if this 
has been discusses or approved.

Windy KM5Q
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[Elecraft] K3/10 Kit For Sale

2008-10-22 Thread Philip Leonard WVØT
This is a new in the box K3/10 kit (basic kit, no options).  Never 
unpacked.  SN is 1905.


Asking my invoice cost plus actual shipping cost to your location.  In 
other words, I'm not looking to make a profit.


Contact me off-list at [EMAIL PROTECTED]

73 de Philip
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Re: [Elecraft] K3: CWT and Volume wish list

2008-10-22 Thread W6NEK
I second Larry's request for the CWT feature to remain on when enabled. 
This is a great feature but it really bugs me that I have to keep turning 
the CWT function back on because I switched bands or modes.


Gotta love the K3.  Where else can you moan and groan about the way the rig 
functions and actually have the lead designers hear you!!!


Best 73,
Frank - W6NEK

- Original Message - 
From: Larry Naumann [EMAIL PROTECTED]

To: elecraft@mailman.qth.net
Sent: Wednesday, October 22, 2008 11:12 AM
Subject: [Elecraft] K3: CWT and Volume wish list




I have a couple of minor things that I would like to see included if at 
all

possible.
 The first is the CWT feature. I wish it would stay on when I swap bands 
or

go to SSB then back to CW.
Being king of tone deaf this is a great feature for me but it always 
toggles

off.
  The second item has to do with my hearing also. Being an old fart, my
left ear is not as good as my right. It would be nice to be able to 
balance

the left and right channel to account for this. I am sure the AFX feature
would work better. I know I can add an outboard control to do this but I
like a clean setup without a bunch of extr wires and controls hanging
around.

  I also want to say how much I like running PSK with the paddles, I've 
had

a lot of fun with that feature.
Also getting ready to put in the KRX3 module, this ought to really add to
the radio.
Thanks for a great product.
Larry Naumann  N0SA
--
View this message in context: 
http://n2.nabble.com/K3%3A-CWT-and-Volume-wish-list-tp1365083p1365083.html

Sent from the Elecraft mailing list archive at Nabble.com.

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[Elecraft] K3 #1999

2008-10-22 Thread Michael van Hauten
K3 #1999 arrived in Germany. Shipped October 20, arrived October 22
Where is K3 #2000 ?

73 de DC0ZO
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Re: [Elecraft] K3: CWT and Volume wish list

2008-10-22 Thread Timothy . Urban

If someone is keeping track I also am in favor of being able permanently 
enabling the CWT feature.

Thx

Tim
N5IIT




- Original Message -
From: W6NEK [EMAIL PROTECTED]
Sent: 10/22/2008 03:26 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3: CWT and Volume wish list

I second Larry's request for the CWT feature to remain on when enabled.
This is a great feature but it really bugs me that I have to keep turning
the CWT function back on because I switched bands or modes.

Gotta love the K3.  Where else can you moan and groan about the way the rig
functions and actually have the lead designers hear you!!!

Best 73,
Frank - W6NEK

- Original Message -
From: Larry Naumann [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Wednesday, October 22, 2008 11:12 AM
Subject: [Elecraft] K3: CWT and Volume wish list




I have a couple of minor things that I would like to see included if at
all
possible.
 The first is the CWT feature. I wish it would stay on when I swap bands
or
go to SSB then back to CW.
Being king of tone deaf this is a great feature for me but it always
toggles
off.
  The second item has to do with my hearing also. Being an old fart, my
left ear is not as good as my right. It would be nice to be able to
balance
the left and right channel to account for this. I am sure the AFX feature
would work better. I know I can add an outboard control to do this but I
like a clean setup without a bunch of extr wires and controls hanging
around.

  I also want to say how much I like running PSK with the paddles, I've
had
a lot of fun with that feature.
Also getting ready to put in the KRX3 module, this ought to really add to
the radio.
Thanks for a great product.
Larry Naumann  N0SA
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[Elecraft] Unstable SSB Power!

2008-10-22 Thread e72x

Hi all!

I just discovered  K3 Sn/1577 has the problem with SSB power drop down until
turn off and on radio back to the normal . Fist time it happens on 40m 
runinig  CW the power is 100W switch to SSB power drop to 60w after that I
back on CW and get again full 100w.After that I turn Off and On radio and
problem was solved. I am use latest regular firmware MCU 2.46 / DSP 1.92! It
must be visible on all K3 with this firmware! but I am not sure exactly when
this happened again and on which band!  

regards,
Gordan, E72X,   
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Re: [Elecraft] from John K3JK

2008-10-22 Thread Don Wilhelm

John,

Remove the KAT100 AUX I/O cable and see if you can connect.  If so, the 
problem is in the KAT100 or its cable to the K2.
There is likely something that you inadvertently touched (and changed) 
in the KAT100 during the firmware upgrade.  The N4PY software (and HRD) 
do not use any of the signals that are required for K2 to KAT100 
communication, but the conductors involved do come near one another in 
the cable that attaches to the K2, so you may find your problem there.


There is one quite simple thing to check first - the cable plugging 
between the KAT100 and the K2 - the housing with the 2 cables attached 
must connect to the K2 - if that connector is found on your KAT100, your 
K2 to computer communications will not work because there are no wires 
present for the two  RS-232 signals.


73,
Don W3FPR

John Klokis wrote:
hi everyone, would like to ask the group about a problem.   I had no 
problem with my K2 connecting with my N4PY software before a KAT/100 
update from 1.09 to 1.10.   ever since the update and service to the 
radio, I can not connnect with my control software.  Even with ham 
radio delux, it locates the comport, but when trying to connect with 
frequency on radio, the program can not. Has anyone run into this 
problem before?  John K3JK



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No virus found in this incoming message.
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[Elecraft] K2 audio pot

2008-10-22 Thread Scott McDowell
Hello
My K2 af gain pot has started acting up. I have noticed that if I press down
on the
knob the audio will increase in volume. I guess that means it is time to
change
it out. Right?
73
Scott N5SM
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Re: [Elecraft] K3 What mics are proplr using for SSB?

2008-10-22 Thread Maarten van Rossum
Heil Pro set Plus with HC4-DX and HC5 full range elements, but you can get
great audio reports with a $ 15,- headset/microphone.
What I like about the Pro Set Plus is that it covers your ears so QRM inside
the shack doesn't bother me that much.
That really helps during Multi/Multi SSB Contesting ;-)
 I also find it to be very ergonomic.

73, Maarten
PD2R

2008/10/22 [EMAIL PROTECTED]

 Heil Gold Line.  Narrow and Wide settings are both fbom.  Narrow really
 cuts through the pileups.
 matt, W6NIA


 Oct 22, 2008 10:11:40 AM, [EMAIL PROTECTED] wrote:

 Looking to find what people are using for SSB mics.

 Thanks

 rOn

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Re: [Elecraft] K3 mobile

2008-10-22 Thread Gary
  I put over 500,000 miles on a K2 in a rough mobile environment (18 wheeler)  
I have a K3 now, since January of this year, and spend about 90% of my time on 
the highways and 10% bouncing up and down mountains going in and out of 
Windmill sites. I have yet to have the K2 or K3 have ANY problems what so ever. 
The radio's Will take the abuse, without any user mods are fixes.
  73 Gary W4GNS

  I have seen it done in commercial products and I recently did it when I was 
assembling
  my SoftRock receivers because of my concerns with the #30 wire breaking.

  The two reasons I might think of would be any detuning effect or fear of the 
material used
  attacking the wire insulation.  

  Any wisdom on this subject out there?I did not see or am not aware of the 
Elecraft
  advisory.

  73,
  Bob
  K2TK


  [EMAIL PROTECTED] wrote:

I have seen the use of dope, sealers and so on strongly discouraged by 
Elecraft.
matt, W6NIA


Oct 22, 2008 10:30:51 AM, [EMAIL PROTECTED] wrote:

  There are at least two ferrite core transformers in the K3 that are 
  supported only by their thin wires. I'm concerned that they may not 
  survive a mobile environment. It would take only a dab of RTV 
  (silicone adhesive sealant) to secure them, but I don't know if this 
  has been discusses or approved.

  Windy KM5Q
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--


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Re: [Elecraft] K2 audio pot

2008-10-22 Thread Mike S

At 05:55 PM 10/22/2008, Scott McDowell wrote...
My K2 af gain pot has started acting up. I have noticed that if I 
press down on the knob the audio will increase in volume. I guess that 
means it is time to change it out. Right?


You can get them from Elecraft, or Mouser (p/n 317-2080-5K, Alpha PC 
Mount Black Shaft Potentiometers Audio 9mm 5K Right Angle PC Mount). 
The other pots (Keyer Speed, Power Out, I.F. Gain, RIT/XIT Offset) are 
linear taper, and are Mouser p/n 317-2090-5K. 


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[Elecraft] K3 Shipping Status Update

2008-10-22 Thread Eric Swartz - WA6HHQ, Elecraft

We've updated the K3 shipping status page.

Through Friday, Oct 31st, we will be shipping K3 orders received through 
Aug 31st, 2008.


Newly received K3 orders are now targeted for delivery 2.2 months after 
order date. (As of 10/21)


73, Eric   WA6HHQ



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[Elecraft] 6M Preamp

2008-10-22 Thread Greg-N4CC
The 6M preamp is now on the order page...just ordered 
mine...   :-)  73 de Greg-N4CC


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RE: [Elecraft] K3 What mics are proplr using for SSB?

2008-10-22 Thread Gene W2BXR

I tried 3 mics with my K3, Goldline G4 wide setting, RE20, and Audio-Technica
3035 which needs a phontom pwr supply.  All worked great and received
glowing audio reports. All were previously used with a Kenwood ts870 and no
wiring changes were made to the mic plug.  I use a hand held PTT switch.

TX eq settings were the same for all: 50 +3, 100 +7, 200 +3, 400 +4, 800-0,
1.2,2.4,3.2 +7.
 Mic Gain   Comp.
G4 15   7
RE20  11   22
3035   612

With ESSB turned on (3.5) reports were better yet.  I do not use ESSB very
often but very nice to have.  My voice I feel is crummy and not very
suitable for bradcasting.

Currently use the 3035, RE20 is with another rig, G4 is backup.

Your milage may vary :)

Gene



Bruce McLaughlin-2 wrote:
 
 I use a Heil proset with very good results.
 
 Bruce - W*FU
 
 -Original Message-
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED] On Behalf Of rOn
 Sent: Wednesday, October 22, 2008 10:56 AM
 To: elecraft@mailman.qth.net
 Subject: [Elecraft] K3 What mics are proplr using for SSB?
 
 Looking to find what people are using for SSB mics.
 
 Thanks
 
 rOn
 
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Re: [Elecraft] 6M Preamp

2008-10-22 Thread David Ferrington, M0XDF
sorry, found it - thanks for the heads up - ordered mine to ship with  
KDVR3 - hell, no 6M until next May anyway!

:-)
73 de M0XDF, K3 #174
--
Times are bad. Children no longer obey their parents, and everyone is
writing a book. -Marcus Tullius Cicero, statesman, orator and writer
(106-43 BC)

On 23 Oct 2008, at 01:22, Greg-N4CC wrote:

The 6M preamp is now on the order page...just ordered mine...   :-)   
73 de Greg-N4CC


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[Elecraft] KDVR3

2008-10-22 Thread Bob Tellefsen
I see from the E'craft web page that the 
KDVR3 is to start shipping 11/30/08.
Is it firm enough now that we can get some
description info on it?  I'd really like to know
what it is supposed to be able to do.  I had
cancelled my original order for it due to a
lack of detailed info.
Thanks and 73
Bob N6WG
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Re: [Elecraft] 6M Preamp

2008-10-22 Thread Augie Hansen

David Ferrington, M0XDF wrote:
sorry, found it - thanks for the heads up - ordered mine to ship with 
KDVR3 - hell, no 6M until next May anyway!


The 6m band often has great single and double hop E skip during late 
November and most of December here in the USA. My European 6m DX 
contacts were worked in mid December, but that was F2 propagation during 
the peak of the previous solar cycle (assuming that we're now into the 
new cycle).


Gus Hansen
KB0YH


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[Elecraft] K3 What mics are proplr using for SSB?

2008-10-22 Thread Fern Rivard
Gene:

Looking at your transmit audio equilizer settings. You would accomplish the 
very same effect if you dropped all of your settings by 3 db. In other words 
set as follows:
50 @ 0,  100 @ +4, 200 @ 0, 400 @+1, 800 @ -3, 1.2 @ +4, 2.4 @ +4, 3.2 @ +4.

I have been using a commercial dynamic hand mic with the UP/DOWN features which 
I do NOT have to use the transmit audio equilizer at all as the audio sounds 
best with all settings at zero. This tells me that this mic is a perfect match 
for my voice for the K3. I get very similar results when I used my Shure 444D 
dynamic mic where again I do NOT require the use of the transmit equilizer as 
it sounds best in all settings at zero. However, if I use the optional electret 
hand mic from Elecraft then I have to play with the transmit audio equilizer to 
make it sound better but it never sounds as good as either of my dynamic 
microphones.
Just my 2 cents worth from Fern   VE7GZ with K3 serial #412.




- Original Message - 
From: Gene W2BXR [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Wednesday, October 22, 2008 6:44 PM
Subject: RE: [Elecraft] K3 What mics are proplr using for SSB?



I tried 3 mics with my K3, Goldline G4 wide setting, RE20, and Audio-Technica
3035 which needs a phontom pwr supply.  All worked great and received
glowing audio reports. All were previously used with a Kenwood ts870 and no
wiring changes were made to the mic plug.  I use a hand held PTT switch.

TX eq settings were the same for all: 50 +3, 100 +7, 200 +3, 400 +4, 800-0,
1.2,2.4,3.2 +7.
 Mic Gain   Comp.
G4 15   7
RE20  11   22
3035   612

With ESSB turned on (3.5) reports were better yet.  I do not use ESSB very
often but very nice to have.  My voice I feel is crummy and not very
suitable for bradcasting.

Currently use the 3035, RE20 is with another rig, G4 is backup.

Your milage may vary :)

Gene



Bruce McLaughlin-2 wrote:
 
 I use a Heil proset with very good results.
 
 Bruce - W*FU
 
 -Original Message-
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED] On Behalf Of rOn
 Sent: Wednesday, October 22, 2008 10:56 AM
 To: elecraft@mailman.qth.net
 Subject: [Elecraft] K3 What mics are proplr using for SSB?
 
 Looking to find what people are using for SSB mics.
 
 Thanks
 
 rOn
 
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[Elecraft] K2 # 06602: RX alive on 40meters

2008-10-22 Thread Marinus, ZL2ML

Have just completed the Assembly II stage. Had only one hickup where I had
skipped some components but after those were added it all burst into life.

About 6 months ago I got my hands on a TenTec Omni 546-C (new in the box,
unused; 28 years in storage) in which all bypass capacitors and
electrolytics needed replacing. A total realignment was required too with
requirements of frequency counter, oscilloscope, dummy load, current meter
(18 A).

The K2 has proven to be a lot simpler and easier than that job. Alignment
has not given me grief (sofar, touch wood), only slowdown was a bit of a
learning curve on how to drive the menus. 

Very pleased with the kit, looked forward to get it on the air and put it to
the test.

Hopefully I'll find next week a few days to get a new antenna up (weather
permitting) and then I can move on to the Assembly III stage. 

73, Marinus

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[Elecraft] My K2 Station For Sale or trade.. SOLD

2008-10-22 Thread Kalkwarf Bob

Thanks to all who responded... SOLD

Hi All, Would trade for a troublesome K3 (if there is such a rig).  I  
would like to sell it all at once for $1500 or Best Offer.
I have the QRP lid with KAT2 installed for easy QRP/QRO swaps.  Meets  
or exceeds full specs.


K2 HF Transceiver Serial 4011
KSB2 K2 SSB Option
K160RX K2 160M / 2nd RX Antenna Option
KNB2 K2 Noise Blanker
KAF2 K2 Audio filter and Real Time Clock
KAT2 K2 20W Internal Auto Tuner
KIO2 K2 AUX I/O RS-232 Interface
ETS2 Standard Tilt Stand for the EC2
FDIMP Finger Dimple for K1/K2
MH2 Hand Mic. for K2/K3
KAT100-1 150W ATU for the K2 and K2/100
KPA100 K2/100 Internal Integration Kit

Kenwood HM-43S
Begali Signature Paddle
Diamond SX-100 swr/wattmeter
RF Concepts 100watt Dry Dummy load

Bob W7WO

[EMAIL PROTECTED]

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[Elecraft] SUB receiver

2008-10-22 Thread Dave Blaschke


I got my K3 yesterday and am learning. But I have not figured out how 
to hear sound from the SUB receiver. Yes, KRX3 is installed. How does 
one activate audio out of the SUB rcvr?


Dave, W5UN

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Re: [Elecraft] K3 mobile

2008-10-22 Thread David Cutter
Cheap RTVs such as used in bathroom sealant has a vinegar smell and will attack 
copper.  In a small confined space inside a radio that's not good.  In an open 
outdoor environment where the gas can escape it's not such a problem.  Dow 
Corning and others make RTVs with benign contents, but at a considerable 
increase in cost.  

Surface mount components have practically no exposed copper and pcb tracks are 
not exposed, so, I wonder whether the acetic acid attacks the tin coated 
contacts.

David
G3UNA
  - Original Message - 
  From: Bob 
  To: [EMAIL PROTECTED] 
  Cc: elecraft@mailman.qth.net 
  Sent: Wednesday, October 22, 2008 7:35 PM
  Subject: Re: [Elecraft] K3 mobile


  OK...  May I ask why?

  I have seen it done in commercial products and I recently did it when I was 
assembling
  my SoftRock receivers because of my concerns with the #30 wire breaking.

  The two reasons I might think of would be any detuning effect or fear of the 
material used
  attacking the wire insulation.  

  Any wisdom on this subject out there?I did not see or am not aware of the 
Elecraft
  advisory.

  73,
  Bob
  K2TK


  [EMAIL PROTECTED] wrote:

I have seen the use of dope, sealers and so on strongly discouraged by 
Elecraft.
matt, W6NIA


Oct 22, 2008 10:30:51 AM, [EMAIL PROTECTED] wrote:

  There are at least two ferrite core transformers in the K3 that are 
  supported only by their thin wires. I'm concerned that they may not 
  survive a mobile environment. It would take only a dab of RTV 
  (silicone adhesive sealant) to secure them, but I don't know if this 
  has been discusses or approved.

  Windy KM5Q
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Re: [Elecraft] SUB receiver

2008-10-22 Thread Iain MacDonnell - K6IAM



On 10/22/08 10:12 PM, Dave Blaschke wrote:


I got my K3 yesterday and am learning. But I have not figured out how to
hear sound from the SUB receiver. Yes, KRX3 is installed. How does one
activate audio out of the SUB rcvr?


Have you read page 37 of the owner's manual ??

~Iain

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