[Elecraft] DSP Upgrade and Serial Number

2010-03-13 Thread Brett Howard
So where is the SN stored in the K3?  The people who received new upgraded
DSP boards in the mail; did you get the serial number of the guy who had
that board before you?  When I got the upgraded DSP board I sent my board in
and had it reworked so all my info was the same but the swaparoo makes me
wonder if you end up with a new serial too. I gotta admit as a CW op I hate
my SN (1116) but I still love my K3 so it balances out.

Not a big deal either way this goes. I'm just curious. Thank god I'm not a
cat!

~Brett (KC7OTG)
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Re: [Elecraft] DSP Upgrade and Serial Number

2010-03-13 Thread Philippe Trottet
MENU- CONFIG EXTD, TECH MD=ONturn the B knob until SER NUM.
or
Download the K3_EZ SOFTWARE
then go to K3 info, ur S/N will be showed
73's
Philippe A65BI



 Brett Howard br...@livecomputers.com 13-03-2010 12:31 
So where is the SN stored in the K3?  The people who received new upgraded
DSP boards in the mail; did you get the serial number of the guy who had
that board before you?  When I got the upgraded DSP board I sent my board in
and had it reworked so all my info was the same but the swaparoo makes me
wonder if you end up with a new serial too. I gotta admit as a CW op I hate
my SN (1116) but I still love my K3 so it balances out.

Not a big deal either way this goes. I'm just curious. Thank god I'm not a
cat!

~Brett (KC7OTG)
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Re: [Elecraft] DSP Upgrade and Serial Number

2010-03-13 Thread Jeff KB2M
I did the DSP board exchange and my serial number (without any input from
me) is still 1516. So it is stored somewhere else besides on the DSP board.
Probably right next to the  FP temp sensor...

73 Jeff kb2m


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brett Howard
Sent: Saturday, March 13, 2010 3:31 AM
To: elecraft
Subject: [Elecraft] DSP Upgrade and Serial Number

So where is the SN stored in the K3?  The people who received new upgraded
DSP boards in the mail; did you get the serial number of the guy who had
that board before you?  When I got the upgraded DSP board I sent my board in
and had it reworked so all my info was the same but the swaparoo makes me
wonder if you end up with a new serial too. I gotta admit as a CW op I hate
my SN (1116) but I still love my K3 so it balances out.

Not a big deal either way this goes. I'm just curious. Thank god I'm not a
cat!

~Brett (KC7OTG)
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[Elecraft] setting filter engage frequency

2010-03-13 Thread Gary Lee
Thanks all.  I was over thinking the problem.


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[Elecraft] The Myth of Lying to Your K3

2010-03-13 Thread Ed Muns
Setting the crystal filter engagement bandwidth is sometimes described as
lying to your K3 when the number is different than the number on the
filter.  While this phrasing is cute and descriptive, it can be very
misleading.  There is no lie, but in fact a very precise setting that
determines the DSP frequency at which the crystal filter engages.  If
anything, the user is lying to themselves.  Some facts:

1.  The bandwidth in the filter's marketing name is not the actual bandwidth
of the filter.  Some filters are significantly different than their name.
For example, the KFL3A-250  250 Hz, narrow 8-pole  filter is nominally
370Hz wide at the -6dB points.  The KFL3A-400  400 Hz, narrow 8-pole
filter is 435Hz.

2.  The actual IF bandwidth of the K3 is determined by the cascade effect of
the DSP and crystal filter bandwidths.  When those bandwidths are close to
one another, the actual IF bandwidth is significantly narrower.  So, if you
configure your K3 to engage the 250Hz filter (actually 370Hz) at 350Hz or
400Hz, the resultant bandwidth will be closer to 300Hz.

3.  If you engage a crystal filter at a DSP bandwidth much greater than its
actual bandwidth, then the K3 IF bandwidth will decrease immediately to the
crystal filter bandwidth and the passband shape will be governed by the
rounder shape of the crystal filter.  Some users do this because they
like the sound of the crystal filter passband shape compared to the
sharper DSP passband.  Keep in mind, though, that the bandwidth step at the
crystal filter engagement point is much larger than the normal DSP steps.
For example, if you have the 1.8kHz filter engage at 2.2kHz, you give up any
IF bandwidth between 2.3kHz and 1.8kHz.  The K3 WIDTH control shows the DSP
bandwidth at values between 2.3-1.8kHz, but the actual K3 IF bandwidth is
governed by the narrower 1.8kHz crystal filter and fixed at that bandwidth
for these intermediate DSP bandwidths.  Failure to recognize this fact is
lying to yourself.

4.  The crystal filter engagement point can alternatively be set at a DSP
bandwidth much less than the actual crystal filter.  In this case, the DSP
bandwidth steps are consistent and represent the true IF bandwidth of the K3
at any time.  The crystal filter is always wider than the DSP bandwidth and
therefore does not cause the IF bandwidth to be narrower due to cascading.
In this case, the K3 IF passband shape is governed by the sharper DSP shape
and the crystal filter is only providing roofing filter protection for the
DSP, which happens to be the primary function of the crystal filter.

Any value you choose for a crystal filter to engage is valid.  There is no
right or wrong.  There is no lie.  The engagement point you choose is a
simple fact.  The important thing is to fully understand the implication of
your choice so that you accomplish what you intend to accomplish.

Ed - W0YK
---
Ed Muns
Muns Vineyard - www.munsvineyard.com 
FaceBook - www.facebook.com/munsvineyard

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Re: [Elecraft] K3: rear microphone plug problem

2010-03-13 Thread Joe Subich, W4TV

The wiggle is often that the jacks are designed for 3.5mm plugs 
as opposed to 1/8 (3.2mm).  Almost all new manufacturing is done 
with 3.5mm jacks.

73, 

   ... Joe, W4TV 
 




 -Original Message-
 From: elecraft-boun...@mailman.qth.net 
 [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of S Sacco
 Sent: Friday, March 12, 2010 9:14 PM
 To: Jim McDonald
 Cc: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] K3: rear microphone plug problem
 
 
 I'll second Knut's comment.
 
 
 
 On Fri, Mar 12, 2010 at 5:27 PM, Jim McDonald j...@n7us.net wrote:
  To minimize wear on the jacks, I use a Radio Shack Stereo Audio 
  Source Selector 3-way switch which is plugged into the K3 speaker 
  jack.  It selects either the powered Sony computer speakers 
 or one of 
  two headphones, one of which is a Heil Proset Plus.
 
  Jim N7US
 
 
  -Original Message-
 
  Hi,
 
  I have also recently moved my Heil proset to the rear and so far I 
  have not had any problems. With that said, I don't have a very 
  comfortable feeling about the quality of the 1/8 sockets 
 on the K3. 
  There is a lot of wiggle and the plugs don't seem to seat 
 properly in 
  the sockets. I am not sure if there is such a thing as a 
 quality 1/8 
  phone socket, especially the stereo ones. I wish Elecraft (and Heil 
  for that matter) had avoided them.
 
  AB2TC - KNut
 
 
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Re: [Elecraft] K3 - Connecting a paddle using a jack plug adaptor

2010-03-13 Thread Bob
Is that a Radio Shack Adapter # 274-363? Or your local equivalent.  If 
so it connects
1/8 MONO to 1/4 Stereo and is shorting things internally.

Try another adapter, or wire your own.

73,
Bob
K2TK

On 3/13/2010 2:10 AM, Marinus Rosenbrand wrote:
 Hello everyone,

 K3/10 004049 is alive, but still needs to complete the entire calibration
 process (getting a USB to DB9 serial cable later today).

 Just a quick question regarding the Paddle connection. The paddle I use
 (looks like this:
 http://www.bctonline.com/~skelly/shack_pictures/k7em_shack_2003_053_large.jpg-
 Link is NOT my shack) works fine with on a K2, K1, KX1. The Jack plugs
 on
 either side of the cable are 3.5mm (small). On the K3, the paddle connector
 is 6mm (I believe). I use a 3.5mm to 6mm adaptor, which looks like this
 http://www.zingsmusic.com/images/large/AP12.jpg.

 When pressing the left 'wing' I get a series of dots and dashes. The right
 wing remains mute. K3 is transmitting fine. Should I just make a direct
 cable, omitting the use of an adaptor? And if so, should I use mono or
 stereo plugs? The owners manual is a bit terse on the subject.

 Thank you and best 73
 __


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[Elecraft] FS:Elecraft Special Edition Hex Key

2010-03-13 Thread Robert Charlotte Higgins
Like new condition. Serial number E057

$160 shipped in US

Off list at k...@arrl.net

73 Bob K4LW
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[Elecraft] SEMI QSK TIMING Delay

2010-03-13 Thread Marty Green
How do you set the timing delay when in the SEMI QSK mode?
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Re: [Elecraft] USB to serial angst

2010-03-13 Thread eric manning
All in favour of a USB port on the K3?

Then we could forget about un-necessary, expensive , flaky  and 
crash-prone USB to serial adapters.
THe serial port  with its RS-232 interface is obsolete. It dates back to 
the 70's if not earlier and was superseded  by USB.

eric

VA7DZ

S/N 3640

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Re: [Elecraft] USB to serial angst

2010-03-13 Thread Lew Phelps K6LMP
Folks, I asked Elecraft about this before I bought my rig in January; they said 
it's on the list but not as easy to do as one might think.  I figured they 
could just drop an FTDI chipset into the rig in place of the RS232 jack, but it 
seems that it's not all that simple.

Patience is a virtue.

Lew K6LMP


On Mar 13, 2010, at 11:08 AM, eric manning wrote:

 All in favour of a USB port on the K3?
 
 Then we could forget about un-necessary, expensive , flaky  and 
 crash-prone USB to serial adapters.
 THe serial port  with its RS-232 interface is obsolete. It dates back to 
 the 70's if not earlier and was superseded  by USB.
 
 eric
 
 VA7DZ
 
 S/N 3640
 
 -- 
 This message has been scanned for viruses and
 dangerous content by MailScanner, and is
 believed to be clean.
 
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Re: [Elecraft] USB to serial angst

2010-03-13 Thread Ken Nicely
No no no

Just add Ethernet.




On Mar 13, 2010, at 2:08 PM, eric manning eric.mann...@engr.uvic.ca  
wrote:

 All in favour of a USB port on the K3?

 Then we could forget about un-necessary, expensive , flaky  and
 crash-prone USB to serial adapters.
 THe serial port  with its RS-232 interface is obsolete. It dates  
 back to
 the 70's if not earlier and was superseded  by USB.

 eric

 VA7DZ

 S/N 3640

 -- 
 This message has been scanned for viruses and
 dangerous content by MailScanner, and is
 believed to be clean.

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Re: [Elecraft] USB to serial angst

2010-03-13 Thread Joe Planisky
Great idea as long as Elecraft provide and maintain drivers that work  
with

Win2K
WinXP,
Vista/32 bit
Vista/64 bit
Win7/32 bit
Win7/64 bit
Mac OS X 10.5 PPC,
Mac OS X 10.5 Intel,
Mac OS X 10.6,
and the various versions of Linux (32 and 64 bit).

I'm all for it.

73
--
Joe KB8AP

On Mar 13, 2010, at 11:08 AM, eric manning wrote:

 All in favour of a USB port on the K3?

 ...
 eric

 VA7DZ

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[Elecraft] K2 errata

2010-03-13 Thread W2bpi1
Rcvd my kit today. The center page to the errata was missing.  Glad I could 
download it from the Elecraft site. Now to heat up the solder  station!  72 
Geo/W2BPI
 
 
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[Elecraft] OT: FS Microwave Associates Dummy Loads

2010-03-13 Thread Jim Sheldon
I have for sale 2 Microwave Associates dummy loads (originally used as 
terminators in microwave circulator/intermod filters).

Item 1 is a MA Model 44004, 100 watt, 50 ohm terminator/dummy load with very 
low SWR up through the UHF band has a type N female connection -- $55 shipped 
anywhere in the US via USPS Priority Mail.

Item 2 is a MA Model 44001 20 watt intermittent, 5 watt continuous dummy load 
that is machined as a type N male connector.  $10 shipped anywhere in the US by 
priority mail.

Any interest, please email me off list - I accept USPS money orders or Pay Pal 
(add 3.9%).

Jim, W0EB
w...@cox.net
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Re: [Elecraft] USB to serial angst

2010-03-13 Thread Jim Dunstan
At 11:08 AM 3/13/2010 -0800, you wrote:
All in favour of a USB port on the K3?

For what purpose?  If a USB port is provided for the sole purpose of 
sending control data then there is little if any advantage over the RS232 
port  aside from the fact your computer may not include one.  If the 
radio is provided with a USB port then it should use the full potential and 
include the provision of in/out AF streaming as well.  It is possible to 
use the USB port to both send and receive control data for CAT operation 
and stream in/out AF.  After all if we're talking about 'flaky' devices ... 
the sound card provided by most computers is at the top of the list.

If they (radio manufacturer) were to implement such a USB port then 
plugging it in would show up as a sound card in the computer.  However, the 
majority of radios don't do this ... and implementing a USB port on this 
half  basis in no improvement.


Then we could forget about un-necessary, expensive , flaky  and
crash-prone USB to serial adapters.
THe serial port  with its RS-232 interface is obsolete. It dates back to
the 70's if not earlier and was superseded  by USB.

eric
By the way I have never paid more than about $20.00 for any RS232 card or 
external adapter ... and never had a problem installing or using any of 
them  let alone crashing.  The whole PC basically dates to the 70's. 
and it seems a miracle they can do what they do.

73
Jim, VE3CI



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Re: [Elecraft] USB to serial angst

2010-03-13 Thread Brett Howard
All one needs is a TI PCM2902 and a FTDI USB to RS232 chip and a little
support analogy bits and poof you can have all that.  Heck I'd even bet
it could be put onto a board small enough you could fit it inside your
K3 and you'd also have full support for all of the OSes you wish!

~Brett

On Sat, 2010-03-13 at 11:39 -0800, Joe Planisky wrote:
 Great idea as long as Elecraft provide and maintain drivers that work  
 with
 
 Win2K
 WinXP,
 Vista/32 bit
 Vista/64 bit
 Win7/32 bit
 Win7/64 bit
 Mac OS X 10.5 PPC,
 Mac OS X 10.5 Intel,
 Mac OS X 10.6,
 and the various versions of Linux (32 and 64 bit).
 
 I'm all for it.
 
 73
 --
 Joe KB8AP
 
 On Mar 13, 2010, at 11:08 AM, eric manning wrote:
 
  All in favour of a USB port on the K3?
 
  ...
  eric
 
  VA7DZ
 
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Re: [Elecraft] USB to serial angst

2010-03-13 Thread Brett Howard
Actually its exactly that simple...

I'm not sure that people would consider that an improvement as the only
thing it does is move the USB to RS232 adapter into the radio rather
than an external adapter but I think if everyone was using FTDI adapters
there would be a lot fewer complaints about the adapters.

~Brett

On Sat, 2010-03-13 at 11:26 -0800, Lew Phelps K6LMP wrote:
 Folks, I asked Elecraft about this before I bought my rig in January; they 
 said it's on the list but not as easy to do as one might think.  I figured 
 they could just drop an FTDI chipset into the rig in place of the RS232 jack, 
 but it seems that it's not all that simple.
 
 Patience is a virtue.
 
 Lew K6LMP
 
 
 On Mar 13, 2010, at 11:08 AM, eric manning wrote:
 
  All in favour of a USB port on the K3?
  
  Then we could forget about un-necessary, expensive , flaky  and 
  crash-prone USB to serial adapters.
  THe serial port  with its RS-232 interface is obsolete. It dates back to 
  the 70's if not earlier and was superseded  by USB.
  
  eric
  
  VA7DZ
  
  S/N 3640
  
  -- 
  This message has been scanned for viruses and
  dangerous content by MailScanner, and is
  believed to be clean.
  
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Re: [Elecraft] USB to serial angst

2010-03-13 Thread WILLIS COOKE
The need to avoid the Prolific chip set may be fleeting and the problem may 
even be sorted out by now.  The Prolific adapter worked just fine unless you 
were trying to use one of the loggers compiled in Visual Basic for Rig 
Control.  I have seen some reports that a new Prolific driver released in 
December has solved the problem.
 Willis 'Cookie' Cooke 
K5EWJ 





From: Brett Howard br...@livecomputers.com
To: Lew Phelps K6LMP k6...@me.com
Cc: Elecraft elecraft@mailman.qth.net
Sent: Sat, March 13, 2010 3:42:51 PM
Subject: Re: [Elecraft] USB to serial angst

Actually its exactly that simple...

I'm not sure that people would consider that an improvement as the only
thing it does is move the USB to RS232 adapter into the radio rather
than an external adapter but I think if everyone was using FTDI adapters
there would be a lot fewer complaints about the adapters.

~Brett

On Sat, 2010-03-13 at 11:26 -0800, Lew Phelps K6LMP wrote:
 Folks, I asked Elecraft about this before I bought my rig in January; they 
 said it's on the list but not as easy to do as one might think.  I figured 
 they could just drop an FTDI chipset into the rig in place of the RS232 jack, 
 but it seems that it's not all that simple.
 
 Patience is a virtue.
 
 Lew K6LMP
 
 
 On Mar 13, 2010, at 11:08 AM, eric manning wrote:
 
  All in favour of a USB port on the K3?
  
  Then we could forget about un-necessary, expensive , flaky  and 
  crash-prone USB to serial adapters.
  THe serial port  with its RS-232 interface is obsolete. It dates back to 
  the 70's if not earlier and was superseded  by USB.
  
  eric
  
  VA7DZ
  
  S/N 3640
  
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Re: [Elecraft] USB to serial angst - linux?

2010-03-13 Thread Mike Markowski
On a related topic, can anyone recommend a multiport (4 or more)
usb-serial that works without issue on linux?

The kernel documentation for usb-serial is in the kernel tree at
Documentation/usb/usb-serial.txt with recommendations, but it's always
nice to hear first hand success stories.

Thanks!
Mike ab3ap

On 03/13/10 16:57, WILLIS COOKE wrote:
 The need to avoid the Prolific chip set may be fleeting and the
 problem may even be sorted out by now.  The Prolific adapter worked
 just fine unless you were trying to use one of the loggers compiled
 in Visual Basic for Rig Control.  I have seen some reports that a new
 Prolific driver released in December has solved the problem. Willis
 'Cookie' Cooke K5EWJ
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Re: [Elecraft] K3 - Connecting a paddle using a jack plug adaptor

2010-03-13 Thread Marinus Rosenbrand
Hello Dave, Bob,

Thanks for the instructions. Connecting a 6mm plug did indeed work like a
charm. Much better now!

Take care,
Marinus PA3FZS

On Sat, Mar 13, 2010 at 8:10 AM, Marinus Rosenbrand pa3...@gmail.comwrote:

 Hello everyone,

 K3/10 004049 is alive, but still needs to complete the entire calibration
 process (getting a USB to DB9 serial cable later today).

 Just a quick question regarding the Paddle connection. The paddle I use
 (looks like this:
 http://www.bctonline.com/~skelly/shack_pictures/k7em_shack_2003_053_large.jpghttp://www.bctonline.com/%7Eskelly/shack_pictures/k7em_shack_2003_053_large.jpg-
  Link is NOT my shack) works fine with on a K2, K1, KX1. The Jack plugs on
 either side of the cable are 3.5mm (small). On the K3, the paddle connector
 is 6mm (I believe). I use a 3.5mm to 6mm adaptor, which looks like this
 http://www.zingsmusic.com/images/large/AP12.jpg.

 When pressing the left 'wing' I get a series of dots and dashes. The right
 wing remains mute. K3 is transmitting fine. Should I just make a direct
 cable, omitting the use of an adaptor? And if so, should I use mono or
 stereo plugs? The owners manual is a bit terse on the subject.

 Thank you and best 73

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Re: [Elecraft] USB to serial angst

2010-03-13 Thread Don Wilhelm
One can have the simple solution right now.  Just get a USB to serial 
adapter that has jackscrews on its serail end and permanently mount it 
on the back of the K3 - cable over to a USB port on the computer and one 
has that simple solution.  Support for the proper device drivers is the 
responsibility of the adapter manufacturer.

The better and more complex solution is to build a complete USB 
interface inside the K3.  When you connect it to a computer, it is 
recognized as an Elecraft K3 (not as a com port as the adapter would do) 
- then you load the driver(s) for your K3.

Here are a few problems starting with the applications that many hams 
use.  Those applications would have to be re-written to support the USB 
K3, so it will be a while before your favorite logger, etc. adds that 
product specific support as a USB device.
Elecraft would have to spend a lot of time and resources creating the 
drivers for every conceivable OS that is in use (or limit the number of 
OS versions that will work with the K3).  And then when a particular OS 
makes changes, spend a lot of time and effort doing regression testing 
to be certain it still works.  When a new OS comes out, Elecraft would 
have to have new K3 drivers which support that new OS version (on the 
day that the OS is available) - for now and forevermore - the 
alternative is to declare the K3 as obsolete with respect to a computer 
connection.  Keeping the drivers current is the responsibility of the 
device manufacturer unless the OS developer chooses to take over that 
device control and integrate support for it in the OS.  I just can't see 
that happening for the K3 at Microsoft, Apple, Sun Microsystems, etc.

The RS-232 standard provides a lot of protection from that kind of chaos 
for those devices that use a serial port.  There are a lot of devices 
that use the serial port, and will continue to do so for a good long 
time, serial port communications is *not* obsolete.  All a device has to 
do is decide if it is a DTE or a DCE in its design - usually the 
computer end is DCE.

So I say sorry to those who want to use a laptop computer with only 
USB ports as the main hamshack computer.  Why not dedicate a good 
desktop computer to the ham station.  Modern off-lease desktop computers 
are available for as little as $150 loaded with WinXP Pro, many with 2 
serial ports installed, and monitors are available for $99.  So for a 
$250 investment, you can have all your ham applications on a dedicated 
computer.  Add a router if you do not have a home network already and 
you can run that hamstation computer (and the K3 connected to it) from 
your laptop used anywhere in the world that you can obtain an internet 
connection.  Computers have become commodity items.

For my part, keep the serial interface, it will live long after USB is 
gone - there are too many commercial devices that use it for support to 
go away anytime soon.

73,
Don W3FPR

Brett Howard wrote:
 Actually its exactly that simple...

 I'm not sure that people would consider that an improvement as the only
 thing it does is move the USB to RS232 adapter into the radio rather
 than an external adapter but I think if everyone was using FTDI adapters
 there would be a lot fewer complaints about the adapters.

 ~Brett

 On Sat, 2010-03-13 at 11:26 -0800, Lew Phelps K6LMP wrote:
   
 Folks, I asked Elecraft about this before I bought my rig in January; they 
 said it's on the list but not as easy to do as one might think.  I figured 
 they could just drop an FTDI chipset into the rig in place of the RS232 
 jack, but it seems that it's not all that simple.

 Patience is a virtue.
 
   
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Re: [Elecraft] USB to serial angst

2010-03-13 Thread eric manning
I was thinking it might fit onto the next mod of the I/O board...

Brett Howard wrote:
 All one needs is a TI PCM2902 and a FTDI USB to RS232 chip and a little
 support analogy bits and poof you can have all that.  Heck I'd even bet
 it could be put onto a board small enough you could fit it inside your
 K3 and you'd also have full support for all of the OSes you wish!

 ~Brett

 On Sat, 2010-03-13 at 11:39 -0800, Joe Planisky wrote:
   
 Great idea as long as Elecraft provide and maintain drivers that work  
 with

 Win2K
 WinXP,
 Vista/32 bit
 Vista/64 bit
 Win7/32 bit
 Win7/64 bit
 Mac OS X 10.5 PPC,
 Mac OS X 10.5 Intel,
 Mac OS X 10.6,
 and the various versions of Linux (32 and 64 bit).

 I'm all for it.

 73
 --
 Joe KB8AP

 On Mar 13, 2010, at 11:08 AM, eric manning wrote:

 
 All in favour of a USB port on the K3?

 ...
 eric

 VA7DZ
   
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Re: [Elecraft] USB to serial angst

2010-03-13 Thread Phil Kane
On 3/13/2010 1:57 PM, WILLIS COOKE wrote:

 I have seen some reports that a new Prolific driver released in
 December has solved the problem.

  If that is true, where does one find said driver?  I have not
  yet hooked up my K2 to MixW under Windows XP for frequency
  logging and would appreciate any tips on how to do that.  My
  interface is a RigBlaster Plus fed from an existing Prolific
  USB-to-serial multiport adapter.

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

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Re: [Elecraft] USB to serial angst

2010-03-13 Thread Dick Dievendorff
The most recent Prolific driver is available from the Prolific web site.
There's a link to that site in K3 Utility Help, on the TroubleShooting USB
to Serial Adapters page.  This page is also indexed with device drivers

I'm using that December driver during normal K3 Utility development.  You
want the PL-2303 driver for the Elecraft KUSB.

http://www.prolific.com.tw/eng/downloads.asp?ID=31



73 de Dick, K6KR


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Kane
Sent: Saturday, March 13, 2010 3:09 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] USB to serial angst

On 3/13/2010 1:57 PM, WILLIS COOKE wrote:

 I have seen some reports that a new Prolific driver released in
 December has solved the problem.

  If that is true, where does one find said driver?  I have not
  yet hooked up my K2 to MixW under Windows XP for frequency
  logging and would appreciate any tips on how to do that.  My
  interface is a RigBlaster Plus fed from an existing Prolific
  USB-to-serial multiport adapter.

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

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[Elecraft] K2 New Builder

2010-03-13 Thread eric manning
Arrange a nice, comfortable and WELL-LIT workplace.
Get one of those illuminated magnifiers on a boom and all of the 
recommended tools.
Don't do too much at one sitting.
Do NOT keep track of your time. Efficiency is the enemy of craftsmanship.
Think of building as an experience to be savoured, not a race.

eric
VA7DZ

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[Elecraft] Thanks for serial port comp info

2010-03-13 Thread DBellW6AQ
 
Thank you Don and Bob.  My poor old Toshiba notebook crapped out so I  
ordered an IBM small desktop with 2 serial ports and 8 usb ports dual core and  
all the goodies for under $300 from Tiger.  
 
Appreciate the info.
 
73, Dave
 
In a message dated 3/12/2010 8:36:07 P.M. Pacific Standard Time,  
k...@att.net writes:

You can  skip the middleman and go right to the  source:

http://www.ibm.com/products/specialoffers/us/en/icue.html

I've  bought a couple and the ones I received were like new.  Keep 
watching  the site as
inventory changes rapidly.  Sometimes there are even % off  sales.

73,
Bob
K2TK

On 3/12/2010 10:52 PM, Don Wilhelm  wrote:
 Those looking for a computer with a real serial port may want  to
 consider the IBM (Leveno) off-lease computers that are often  offered by
 TigerDirect www.tigerdirect.com.  Many (even most)  come with 2 serial
 ports and are usually loaded with WinXP Pro.   There are likely other
 vendors of these off-lease machines, but I know  TigerDirect frequently
 has them available.  Search the website  for IBM off lease.  Most are in
 the 2 to 3 GHz range and usually  with a Pentium 4 CPU.  They are
 inexpensive enough that you may  want to consider one for a dedicated
 computer for the  hamshack.

 73,
 Don W3FPR

 Alan Bloom  wrote:
 

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Re: [Elecraft] The Myth of Lying to Your K3

2010-03-13 Thread Guy Olinger K2AV
With you all the way until you said this:

The crystal filter is always wider than the DSP bandwidth and
therefore does not cause the IF bandwidth to be narrower due to cascading.

To construe the sentence correctly requires the assumption that ONLY
the shape INSIDE the rated 3 dB or 6 dB passband matters. It is true
that this flat part of the curve is governed most by the
characteristics of the narrower curve. HOWEVER, everything cascades.
PARTICULARLY so on the skirts.

When one is trying to listen to a signal at S1 just up a ways from a
signal that is S9+30, it is the skirts that count the most. The losses
on the two filtering curves in dB at a given frequency are ADDING
together to create the 98+ dB needed to make the S1 signal comfortably
louder than the unwanted signal.  Note that merely down 78 db on the
skirts makes them EQUAL. Another 20 dB is needed for the comfortable
part.  Neither the DSP nor the roofer will accomplish this on their
own. It is the sum of the skirt losses.

There is a point where the skirts on a roofing filter are the
steepest. If the steepest part of the DSP curve is set to coincide,
this will result in the most sudden and abrupt filtering out of the
unwanted signal as one tunes across and will result in the least
interfered open bandwidth around a run frequency.

That is why I lie about the 8 pole 400 and 250 and call them 450 and
350. I WANT those super-sharp COMPOSITE skirts you get whenever the
steep parts coincide.

73, Guy.

On Sat, Mar 13, 2010 at 10:15 AM, Ed Muns w...@msn.com wrote:
 Setting the crystal filter engagement bandwidth is sometimes described as
 lying to your K3 when the number is different than the number on the
 filter.  While this phrasing is cute and descriptive, it can be very
 misleading.  There is no lie, but in fact a very precise setting that
 determines the DSP frequency at which the crystal filter engages.  If
 anything, the user is lying to themselves.  Some facts:

 1.  The bandwidth in the filter's marketing name is not the actual bandwidth
 of the filter.  Some filters are significantly different than their name.
 For example, the KFL3A-250  250 Hz, narrow 8-pole  filter is nominally
 370Hz wide at the -6dB points.  The KFL3A-400  400 Hz, narrow 8-pole
 filter is 435Hz.

 2.  The actual IF bandwidth of the K3 is determined by the cascade effect of
 the DSP and crystal filter bandwidths.  When those bandwidths are close to
 one another, the actual IF bandwidth is significantly narrower.  So, if you
 configure your K3 to engage the 250Hz filter (actually 370Hz) at 350Hz or
 400Hz, the resultant bandwidth will be closer to 300Hz.

 3.  If you engage a crystal filter at a DSP bandwidth much greater than its
 actual bandwidth, then the K3 IF bandwidth will decrease immediately to the
 crystal filter bandwidth and the passband shape will be governed by the
 rounder shape of the crystal filter.  Some users do this because they
 like the sound of the crystal filter passband shape compared to the
 sharper DSP passband.  Keep in mind, though, that the bandwidth step at the
 crystal filter engagement point is much larger than the normal DSP steps.
 For example, if you have the 1.8kHz filter engage at 2.2kHz, you give up any
 IF bandwidth between 2.3kHz and 1.8kHz.  The K3 WIDTH control shows the DSP
 bandwidth at values between 2.3-1.8kHz, but the actual K3 IF bandwidth is
 governed by the narrower 1.8kHz crystal filter and fixed at that bandwidth
 for these intermediate DSP bandwidths.  Failure to recognize this fact is
 lying to yourself.

 4.  The crystal filter engagement point can alternatively be set at a DSP
 bandwidth much less than the actual crystal filter.  In this case, the DSP
 bandwidth steps are consistent and represent the true IF bandwidth of the K3
 at any time.  The crystal filter is always wider than the DSP bandwidth and
 therefore does not cause the IF bandwidth to be narrower due to cascading.
 In this case, the K3 IF passband shape is governed by the sharper DSP shape
 and the crystal filter is only providing roofing filter protection for the
 DSP, which happens to be the primary function of the crystal filter.

 Any value you choose for a crystal filter to engage is valid.  There is no
 right or wrong.  There is no lie.  The engagement point you choose is a
 simple fact.  The important thing is to fully understand the implication of
 your choice so that you accomplish what you intend to accomplish.

 Ed - W0YK
 ---
 Ed Muns
 Muns Vineyard - www.munsvineyard.com
 FaceBook - www.facebook.com/munsvineyard

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Re: [Elecraft] USB to serial angst

2010-03-13 Thread Guy Olinger K2AV
The Prolific chip had real problems on Win 7 64 bit, but the BSOD and
other weirdness not seemingly related to the BSOD, have gone away with
the new drivers.

73, Guy.

On Sat, Mar 13, 2010 at 4:57 PM, WILLIS COOKE wrco...@yahoo.com wrote:
 The need to avoid the Prolific chip set may be fleeting and the problem may 
 even be sorted out by now.  The Prolific adapter worked just fine unless you 
 were trying to use one of the loggers compiled in Visual Basic for Rig 
 Control.  I have seen some reports that a new Prolific driver released in 
 December has solved the problem.
  Willis 'Cookie' Cooke
 K5EWJ




 
 From: Brett Howard br...@livecomputers.com
 To: Lew Phelps K6LMP k6...@me.com
 Cc: Elecraft elecraft@mailman.qth.net
 Sent: Sat, March 13, 2010 3:42:51 PM
 Subject: Re: [Elecraft] USB to serial angst

 Actually its exactly that simple...

 I'm not sure that people would consider that an improvement as the only
 thing it does is move the USB to RS232 adapter into the radio rather
 than an external adapter but I think if everyone was using FTDI adapters
 there would be a lot fewer complaints about the adapters.

 ~Brett

 On Sat, 2010-03-13 at 11:26 -0800, Lew Phelps K6LMP wrote:
 Folks, I asked Elecraft about this before I bought my rig in January; they 
 said it's on the list but not as easy to do as one might think.  I figured 
 they could just drop an FTDI chipset into the rig in place of the RS232 
 jack, but it seems that it's not all that simple.

 Patience is a virtue.

 Lew K6LMP


 On Mar 13, 2010, at 11:08 AM, eric manning wrote:

  All in favour of a USB port on the K3?
 
  Then we could forget about un-necessary, expensive , flaky  and
  crash-prone USB to serial adapters.
  THe serial port  with its RS-232 interface is obsolete. It dates back to
  the 70's if not earlier and was superseded  by USB.
 
  eric
 
  VA7DZ
 
  S/N 3640
 
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[Elecraft] K3: ACC Pin10?

2010-03-13 Thread DM4iM
What does this Pin exactly do? Pull to Ground or deliver a voltage?
I need to key a Transverter (non-Elecraft).

Martin

-- 

73, DM4iM
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Re: [Elecraft] USB to serial angst

2010-03-13 Thread Joe Subich, W4TV

Plus Windows 3.1, 85, 98, SE and ME ... as well as MSDOS for those 
still using CT for DOS. 

73, 

   ... Joe, W4TV 
 


 -Original Message-
 From: elecraft-boun...@mailman.qth.net 
 [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Joe Planisky
 Sent: Saturday, March 13, 2010 2:40 PM
 To: eric manning
 Cc: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] USB to serial angst
 
 
 Great idea as long as Elecraft provide and maintain drivers 
 that work  
 with
 
 Win2K
 WinXP,
 Vista/32 bit
 Vista/64 bit
 Win7/32 bit
 Win7/64 bit
 Mac OS X 10.5 PPC,
 Mac OS X 10.5 Intel,
 Mac OS X 10.6,
 and the various versions of Linux (32 and 64 bit).
 
 I'm all for it.
 
 73
 --
 Joe KB8AP
 
 On Mar 13, 2010, at 11:08 AM, eric manning wrote:
 
  All in favour of a USB port on the K3?
 
  ...
  eric
 
  VA7DZ
 
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Re: [Elecraft] USB to serial angst

2010-03-13 Thread Joe Subich, W4TV


That is completely uninformed and demonstrates a dangerous lack 
of knowledge about the way USB operates. 

Placing a USB port in the K3 would simply move the USB UART 
currently found in the USB to serial converter onto the KIO3 
board.  If Elecraft were to use the prolific chipset currently 
in the KUSB, they would also be stuck with the Prolific drivers  
that are notoriously problematic with VB 6 software and would 
render the K3 unusable with several popular software packages. 

USB *** HAS NO ADVANTAGE *** over standard RS-232 ports and it 
*** NEVER WILL ***.  Going to USB requires a substantial added 
investment by the manufacturer and a major ongoing support 
cost.  

In addition to the software support cost, USB is a multiplexed 
(shared) system level bus.  Because of the system architecture 
data rates on the bus are much higher than the serial equivalent 
through put.  That makes USB much more susceptible to both 
radiated and conducted noise problems.  Computer motherboards 
(and laptop/netbooks) that fail to properly ground the USB 
shield to the board's ground plane are almost guaranteed to 
become wideband noise generators (something that is very rare 
with the 8250 compatible UART). 

73, 

   ... Joe, W4TV 


 -Original Message-
 From: elecraft-boun...@mailman.qth.net 
 [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of eric manning
 Sent: Saturday, March 13, 2010 2:08 PM
 To: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] USB to serial angst
 
 
 All in favour of a USB port on the K3?
 
 Then we could forget about un-necessary, expensive , flaky  and 
 crash-prone USB to serial adapters.
 THe serial port  with its RS-232 interface is obsolete. It 
 dates back to 
 the 70's if not earlier and was superseded  by USB.
 
 eric
 
 VA7DZ
 
 S/N 3640
 
 -- 
 This message has been scanned for viruses and
 dangerous content by MailScanner, and is
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Re: [Elecraft] USB to serial angst

2010-03-13 Thread Joe Subich, W4TV


 All one needs is a TI PCM2902 and a FTDI USB to RS232 chip 
 and a little support analogy bits and poof you can have all 
 that.

Plus a USB hub ... it's not as easy as one would imagine and 
would add significantly ( $250 given normal parts to retail 
ratios) to the cost of the transceiver. 

73, 

   ... Joe, W4TV 
 


 -Original Message-
 From: elecraft-boun...@mailman.qth.net 
 [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brett Howard
 Sent: Saturday, March 13, 2010 4:41 PM
 To: Joe Planisky
 Cc: elecraft@mailman.qth.net; eric manning
 Subject: Re: [Elecraft] USB to serial angst
 
 
 All one needs is a TI PCM2902 and a FTDI USB to RS232 chip 
 and a little support analogy bits and poof you can have all 
 that.  Heck I'd even bet it could be put onto a board small 
 enough you could fit it inside your K3 and you'd also have 
 full support for all of the OSes you wish!
 
 ~Brett
 
 On Sat, 2010-03-13 at 11:39 -0800, Joe Planisky wrote:
  Great idea as long as Elecraft provide and maintain drivers 
 that work
  with
  
  Win2K
  WinXP,
  Vista/32 bit
  Vista/64 bit
  Win7/32 bit
  Win7/64 bit
  Mac OS X 10.5 PPC,
  Mac OS X 10.5 Intel,
  Mac OS X 10.6,
  and the various versions of Linux (32 and 64 bit).
  
  I'm all for it.
  
  73
  --
  Joe KB8AP
  
  On Mar 13, 2010, at 11:08 AM, eric manning wrote:
  
   All in favour of a USB port on the K3?
  
   ...
   eric
  
   VA7DZ
  
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Re: [Elecraft] K2 New Builder

2010-03-13 Thread Alan D. Wilcox
You might also want to consider a vent fan to exhaust solder fumes from 
the area.


I built a home-brew solution with an old muffin fan. You can see the
photos at
http://wilcoxengineering.com/projects/amateur-projects/29-vent-fumes

The commercial versions are nicer, but this does do the job, at least
for me.

Enjoy the kit building!

Alan

Alan D. Wilcox, W3DVX
570-321-1516
http://WilcoxEngineering.com
Williamsport, PA 17701


eric manning wrote:

Arrange a nice, comfortable and WELL-LIT workplace.
Get one of those illuminated magnifiers on a boom and all of the 
recommended tools.

Don't do too much at one sitting.
Do NOT keep track of your time. Efficiency is the enemy of craftsmanship.
Think of building as an experience to be savoured, not a race.

eric
VA7DZ

  


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Re: [Elecraft] USB to serial angst

2010-03-13 Thread R. Kevin Stover
Well said.

There's no good reason for desktop Ham Radio computers to NOT have 
serial ports.
The four port PCI serial card I bought for my new home brew  machine 
cost $20.
It works with all my operating systems, three at last count, and I don't 
have to do any sort of configuration. Shut the computer off, install the 
board, reboot.

USB has NO advantage over RS-232 at the data speeds we're talking about 
and it brings a laundry list of potential problems that RS-232 just 
doesn't have.

The reported obsolescence of RS-232 is highly exaggerated and 
premature. For the most part caused by folks who use compromise 
computers designed for portable use.

On 3/13/2010 7:10 PM, Joe Subich, W4TV wrote:

 That is completely uninformed and demonstrates a dangerous lack
 of knowledge about the way USB operates.

 Placing a USB port in the K3 would simply move the USB UART
 currently found in the USB to serial converter onto the KIO3
 board.  If Elecraft were to use the prolific chipset currently
 in the KUSB, they would also be stuck with the Prolific drivers
 that are notoriously problematic with VB 6 software and would
 render the K3 unusable with several popular software packages.

 USB *** HAS NO ADVANTAGE *** over standard RS-232 ports and it
 *** NEVER WILL ***.  Going to USB requires a substantial added
 investment by the manufacturer and a major ongoing support
 cost.

 In addition to the software support cost, USB is a multiplexed
 (shared) system level bus.  Because of the system architecture
 data rates on the bus are much higher than the serial equivalent
 through put.  That makes USB much more susceptible to both
 radiated and conducted noise problems.  Computer motherboards
 (and laptop/netbooks) that fail to properly ground the USB
 shield to the board's ground plane are almost guaranteed to
 become wideband noise generators (something that is very rare
 with the 8250 compatible UART).

 73,

 ... Joe, W4TV



 -Original Message-
 From: elecraft-boun...@mailman.qth.net
 [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of eric manning
 Sent: Saturday, March 13, 2010 2:08 PM
 To: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] USB to serial angst


 All in favour of a USB port on the K3?

 Then we could forget about un-necessary, expensive , flaky  and
 crash-prone USB to serial adapters.
 THe serial port  with its RS-232 interface is obsolete. It
 dates back to
 the 70's if not earlier and was superseded  by USB.

 eric

 VA7DZ

 S/N 3640


-- 
R. Kevin Stover

ACØH

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[Elecraft] SSB Net for Sunday March 14th

2010-03-13 Thread Augie Hansen
Given that the EQP event will be finishing just as the usually scheduled 
Elecraft SSB is to begin, there may be little interest. However, I'll 
kick the power up from 5w to about 500w and give it a try as fill-in NCS 
while Phil is away.

Frequency: 14.314MHz (+/- a few kHz if necessary)
Start time: 1800Z (don't forget to account for the Daylight Time adjust 
if it applies to your area)

I'm in Denver, CO and have an LPDA and a low slung delta loop. There's a 
significant ring of silence around me so some help from either or both 
coasts for relays will be appreciated.

Gus Hansen
KB0YH



__ Information from ESET Smart Security, version of virus signature 
database 4942 (20100313) __

The message was checked by ESET Smart Security.

http://www.eset.com


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Re: [Elecraft] USB to serial angst

2010-03-13 Thread Alan D. Wilcox
RS-232 port wins for simplicity and for easy troubleshooting. Elecraft 
made the right decision.
When things don't seem to work right, being able to see the controls and 
data with a simple LED tester makes for quick problem solving.


Alan

Alan D. Wilcox, W3DVX
570-321-1516
http://WilcoxEngineering.com
Williamsport, PA 17701 




WILLIS COOKE wrote:

The need to avoid the Prolific chip set may be fleeting and the problem may 
even be sorted out by now.  The Prolific adapter worked just fine unless you 
were trying to use one of the loggers compiled in Visual Basic for Rig Control. 
 I have seen some reports that a new Prolific driver released in December has 
solved the problem.
 Willis 'Cookie' Cooke 
K5EWJ 






From: Brett Howard br...@livecomputers.com
To: Lew Phelps K6LMP k6...@me.com
Cc: Elecraft elecraft@mailman.qth.net
Sent: Sat, March 13, 2010 3:42:51 PM
Subject: Re: [Elecraft] USB to serial angst

Actually its exactly that simple...

I'm not sure that people would consider that an improvement as the only
thing it does is move the USB to RS232 adapter into the radio rather
than an external adapter but I think if everyone was using FTDI adapters
there would be a lot fewer complaints about the adapters.

~Brett

On Sat, 2010-03-13 at 11:26 -0800, Lew Phelps K6LMP wrote:
  

Folks, I asked Elecraft about this before I bought my rig in January; they said it's 
on the list but not as easy to do as one might think.  I figured they could 
just drop an FTDI chipset into the rig in place of the RS232 jack, but it seems that it's 
not all that simple.

Patience is a virtue.

Lew K6LMP


On Mar 13, 2010, at 11:08 AM, eric manning wrote:



All in favour of a USB port on the K3?

Then we could forget about un-necessary, expensive , flaky  and 
crash-prone USB to serial adapters.
THe serial port  with its RS-232 interface is obsolete. It dates back to 
the 70's if not earlier and was superseded  by USB.


eric

VA7DZ

S/N 3640

--
  
  
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Re: [Elecraft] The Myth of Lying to Your K3

2010-03-13 Thread NZ0T

Umm, do you guys ever just have fun operating?
Just wondering
-- 
View this message in context: 
http://n2.nabble.com/The-Myth-of-Lying-to-Your-K3-tp4727680p4730015.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] K2 New Builder

2010-03-13 Thread W2bpi1
Thanks to all who responded. Rcvd it today. Solder hot and  having fun. 
Must be addicted to solder fumes!!  72 Geo/W2BPI
 
 

 
In a message dated 3/13/2010 18:23:14 Eastern Standard Time,  
eric.mann...@engr.uvic.ca writes:

Arrange  a nice, comfortable and WELL-LIT workplace.
Get one of those illuminated  magnifiers on a boom and all of the 
recommended tools.
Don't do too  much at one sitting.
Do NOT keep track of your time. Efficiency is the  enemy of craftsmanship.
Think of building as an experience to be savoured,  not a race.

eric
VA7DZ

-- 
This message has been scanned  for viruses and
dangerous content by MailScanner, and is
believed to be  clean.

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Re: [Elecraft] K2 New Builder

2010-03-13 Thread Alan D. Wilcox
You might also want to consider a vent fan to exhaust solder fumes from 
the area.


I built a home-brew solution with an old muffin fan. You can see the 
photos at

http://wilcoxengineering.com/projects/amateur-projects/29-vent-fumes

The commercial versions are nicer, but this does do the job, at least 
for me.


Enjoy the kit building!

Alan

Alan D. Wilcox, W3DVX
570-321-1516
http://WilcoxEngineering.com
Williamsport, PA 17701 



eric manning wrote:

Arrange a nice, comfortable and WELL-LIT workplace.
Get one of those illuminated magnifiers on a boom and all of the 
recommended tools.

Don't do too much at one sitting.
Do NOT keep track of your time. Efficiency is the enemy of craftsmanship.
Think of building as an experience to be savoured, not a race.

eric
VA7DZ

  
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Re: [Elecraft] K3: ACC Pin10?

2010-03-13 Thread Don Wilhelm
Martin,

ACC Pin 10 is a low power (10 ma. max) copy of the KEYOUT connector on 
the rear panel.  It is open circuit until the K3 is keyed (or PTT or 
VOX), and then it goes to a closed circuit condition.
So yes, the K3 pulls this pin to ground during transmit, and it should 
work well for keying a transverter.

73,
Don W3FPR

DM4iM wrote:
 What does this Pin exactly do? Pull to Ground or deliver a voltage?
 I need to key a Transverter (non-Elecraft).

 Martin
   

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[Elecraft] K2 C44

2010-03-13 Thread W2bpi1
Ref control board caps. I have one cap left over 103. I see on  board a 
place marked C44. But instructions say nothing about this part? What's  the 
story?  Geo/W2BPI
 
 
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Re: [Elecraft] The Myth of Lying to Your K3

2010-03-13 Thread Duncan Carter
NZ0T wrote:
 Umm, do you guys ever just have fun operating?
 Just wondering
   
YES!
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Re: [Elecraft] K2 C44

2010-03-13 Thread Don Wilhelm
Geo,

You must have missed the note about C44 on page 22 of the manual - this 
capacitor is not used.

As far as your extra capacitor, did you do a full inventory before you 
started including checking the number of capacitors of each value 
against the parts list?  If you did that, you would have known for 
certain whether there was an extra (that sometimes happens - rare, but 
it happens).
If you did not do a full  inventory, I suggest you go to the parts list 
and check each location that has a .01 uF capacitor on the board.  If 
all those locations have a .01 uF capacitor installed, then you can rest 
assured that you have an extra one.  I know of no easier method.

73,
Don W3FPR

w2b...@aol.com wrote:
 Ref control board caps. I have one cap left over 103. I see on  board a 
 place marked C44. But instructions say nothing about this part? What's  the 
 story?  Geo/W2BPI
   

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[Elecraft] Elecraft CW Net Announcement

2010-03-13 Thread Kevin Rock
Good Evening,
   I almost forgot about this.  Oh for shame!  I got caught up in Thistle  
Shamrock and then Live Wire.  This radio thing is almost too exciting for 
words.  I do miss the radio shows I used to hear on KAAY out of Little Rock and 
Beaker Street Theatre from the same venue.  KAAY was a strong signal AM 
station.  When the rest of the stations turned down their power at nightfall 
they covered the Midwest with a booming signal.  The Green Hornet, The Shadow, 
The Lone Ranger, etc. used to keep me at the radio listening.  These days I 
listen to dits and dahs far more often but in those days I had my brother's 
Lafayette receiver.  I have had headphones stuck on my head since I was about 
five.  I think it has effected my hearing :)  
   Now on to more radio talk :)  Propagation has been good this week.  Even 
though the sun was blank for a day or two the effects of the recent sunspots 
have been lasting.  Today I worked a number of folks on EQP and plan to go back 
and work a few more when I get this out to the world.  It was fun to chat with 
those of you I knew and get to know a few others as I banged away.  My fingers 
had cracked so I had bandaids on my right thumb and forefinger which was 
causing them to stick to the paddles.  After flubbing more than my usual number 
of letters I got off the air and soaked my fingers in hydrogen peroxide.  This 
helped enough to allow me to send without finger coverings.  Much better code 
ensued.  I am sure the op on the other end was thankful!  I have changed the 
UTC time for future nets but as usual have maintained the local times.  I 
checked this so I think I have it correct.  I know I will be corrected if I 
am not.  If these times do not fit the propagation for eithe
 r band they are subject to change.  Don't touch that dial, we control the 
vertical ...

Please join us tomorrow evening.
 
1) Hail signs  (first letter or two of the suffix of your call)
2) NCS help  (as well as QSP/QNP relay help)
 
Sunday 2200z (Sunday 3 PM PST) 14050 kHz
Sunday 2300z (Sunday 4 PM PST)  7045 kHz
 
   Stay warm,
  Kevin.  KD5ONS
 
-
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[Elecraft] [OT] CW app

2010-03-13 Thread O. Johns
This is a CW-centric bunch of people, so maybe this is semi-topical.

A fairly large fraction of hams have either an iPhone or an iPod Touch.  I have 
the latter.

I've found a really good app for CW training.  Maybe some of you pros can pass 
it along to your less gifted friends.

It is Ham Morse by AA9PW.  It has a fairly hostile user interface until you 
figure out how to use it.  But, what it does is very useful.  Basically, there 
are little things that look like dials.  Once you stop trying to make them 
rotate, you realize that you just touch them to make them go to the next notch.

+  Speed adjustable from 5 to 50 wpm
+  Will send random five-letter groups, with the character-set user selectable.
+  Will send a fake QSO 
+  Will send the top 100 or top 500 most used words, in random order
+  Will send pseudo-call signs (3 to 6 character groups of numbers and letters)
+  Will send you the RSS feed from various newspapers, in Morse.

It is this last capability that is the kicker for me.  I can sit down to 
breakfast, and listen to the BBC RSS feed in Morse.  Below 15 WPM it uses 15 
WPM Farnsworth.  Tone is not adjustable.  Can be heard even without ear buds.  
Not great, but audible enough to learn Morse from.  Use earbuds to keep peace 
at the breakfast table.

You pros could actually use it as your primary news source.

Disclaimer:  I have no stake in this.  I don't know AA9PW, but do admire the 
cleverness of his app.  The app costs $4.99, which is high for apps, but worth 
it IMHO.

73,

Oliver
W6ODJ
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Re: [Elecraft] The Myth of Lying to Your K3

2010-03-13 Thread Ed Muns
K2AV noted:
 The crystal filter is always wider than the DSP bandwidth 
 and therefore does not cause the IF bandwidth to be narrower 
 due to cascading.
 
 To construe the sentence correctly requires the assumption 
 that ONLY the shape INSIDE the rated 3 dB or 6 dB passband 
 matters. It is true that this flat part of the curve is 
 governed most by the characteristics of the narrower curve. 
 HOWEVER, everything cascades.
 PARTICULARLY so on the skirts.

That's right.  I chose to simplify the point by not getting into the skirt
issues.  It's clear from the posts on this reflector that the basics of this
topic are not well understood, let alone the subtleties of the cascaded
skirts.

Ed - W0YK
---
Ed Muns
Muns Vineyard - www.munsvineyard.com 
FaceBook - www.facebook.com/munsvineyard 

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