Date   

Re: MH2 Mic issue

Eric Swartz - WA6HHQ, Elecraft
 

Aha! That's what I get for doing email and group postings before
breakfast. :-)

I was out of town Fri-Sun and missed much of this discussion. I'm now
up to speed. Yes, I believe that Wayne and Lyle are going to deal with
the initial transient suppression in the DSP code. It wasn't severe on
the MH2, that's why I missed it.

73, Eric
----

--- In Elecraft_K3@..., David Pratt <david@...> wrote:

In a recent message, Eric Swartz - WA6HHQ <wa6hhq_lists@...>
wrote ...
There is absolutely no need to add a resistor to the mic. We provide a
K3 menu item to enable or disable bias to the mic connector. That's
how I use it on my K3 here. :-)
73, Eric WA6HHQ
Eric - I think you may have missed the point. The suggestion of the 150
ohm resistor in pin 2 was to limit the transients caused when the PTT
button is pressed. The problem is worse than the MH2 when using a
powered microphone such as the D104. With the D104 it takes several
seconds for the audio to build up to the full level.

73

David G4DMP


Re: [Elecraft_K3] Re: MH2 Mic issue

David Pratt
 

In a recent message, Eric Swartz - WA6HHQ <wa6hhq_lists@...> wrote ...
There is absolutely no need to add a resistor to the mic. We provide a
K3 menu item to enable or disable bias to the mic connector. That's
how I use it on my K3 here. :-)
73, Eric WA6HHQ
Eric - I think you may have missed the point. The suggestion of the 150 ohm resistor in pin 2 was to limit the transients caused when the PTT button is pressed. The problem is worse than the MH2 when using a powered microphone such as the D104. With the D104 it takes several seconds for the audio to build up to the full level.

73

David G4DMP


Re: MH2 Mic issue

Eric Swartz - WA6HHQ, Elecraft
 

Hi,

There is absolutely no need to add a resistor to the mic. We provide a
K3 menu item to enable or disable bias to the mic connector. That's
how I use it on my K3 here. :-)

73, Eric WA6HHQ

--- In Elecraft_K3@..., "David Ferrington, M0XDF"
<M0XDF@...> wrote:

I think the simple solution to the MH2 Mic issue, assuming it is an
issue,
will be to ship everybody a 150 ohm resistor and instructions on how to
solder it in!


Re: K3 Shipping Schedule Updated as of 1/16/08 [OT]

Eric Swartz - WA6HHQ, Elecraft
 

Hi Thom,

We designed the K3 to work perfectly with the MH2 and I'm not aware of
any problems so far. I use it here on my K3. Our field testers also
are using them with no problems

What is the problem you were referring to?

Regards,
Eric WA6HHQ

--- In Elecraft_K3@..., Thom LaCosta <lacosta@...> wrote


The issue of the K3 with MH2 Mic is sure to bring out the best of the
logic.......
73 k3hrn
Thom,EIEIO


Re: [Elecraft_K3] Re: MH2 Mic issue

Thom LaCosta <lacosta@...>
 

On Mon, 21 Jan 2008, David Ferrington, M0XDF wrote:

I think the simple solution to the MH2 Mic issue, assuming it is an issue,
will be to ship everybody a 150 ohm resistor and instructions on how to
solder it in!
Could be....but some folks can't do that...maybe send them a replacement mike.

73 k3hrn
Thom,EIEIO
Email, Internet, Electronic Information Officer

www.baltimorehon.com/ Home of the Baltimore Lexicon
www.tlchost.net/hosting/ Web Hosting as low as 3.49/month


Re: MH2 Mic issue

David Ferrington, M0XDF
 

I think the simple solution to the MH2 Mic issue, assuming it is an issue,
will be to ship everybody a 150 ohm resistor and instructions on how to
solder it in!

On 21/1/08 09:19, "Thom LaCosta" <lacosta@...> sent:

The issue of the K3 with MH2 Mic is sure to bring out the best of the
logic....will Elecraft ship Revision B boards to all the folks that built
their
K3s, and will they provide convenient depot-level service for those that
purchased factory assembled units?
--
We can't solve problems by using the same kind of thinking we used when we
created them. -Albert Einstein, physicist, Nobel laureate (1879-1955)


Re: [Elecraft_K3] Re: K3 Shipping Schedule Updated as of 1/16/08 [OT]

Thom LaCosta <lacosta@...>
 

On Mon, 21 Jan 2008, Simon Brown (HB9DRV) wrote:

Thom,

Fat chance - stake through the heart, leave at local crossroads at midnight
more likely.
To say nothing about dipping the unfaithful in honey and staking over an anthill.

The K3 saga has given me insight into Jesuit Logic, folk wisdom, obfuscation and a modern day example of the Cargo Cult in operation.

The issue of the K3 with MH2 Mic is sure to bring out the best of the logic....will Elecraft ship Revision B boards to all the folks that built their K3s, and will they provide convenient depot-level service for those that purchased factory assembled units?

The fun has just started!

73 k3hrn
Thom,EIEIO
Email, Internet, Electronic Information Officer

www.baltimorehon.com/ Home of the Baltimore Lexicon
www.tlchost.net/hosting/ Web Hosting as low as 3.49/month


Re: [Elecraft_K3] Re: K3 Shipping Schedule Updated as of 1/16/08 [OT]

Simon Brown &#92;(HB9DRV&#92;) <simon.brown@...>
 

Thom,

Fat chance - stake through the heart, leave at local crossroads at midnight more likely.

Simon Brown, HB9DRV

----- Original Message -----
From: "Thom LaCosta" <lacosta@...>

Oh ye of little faith. The true believers will doubtless pray for your soul.


Re: [Elecraft_K3] Re: K3 Test from Bavaria translation (draft) now on BCC website

Toby Deinhardt
 

Hallo Craig,

I don't know. We can put them on our wish list, but we won't have time
to do everything on the list.

We still have regular day jobs... hi

vy 73 de toby



Quoting hotelechovictorkilo <vk3he@...>:

Hi Toby

Will you be testing the transmitter for 2 tone IMD numbers, or
looking for any ALC overshoot problems?

Another test that would be interesting to see the data for is the
inband IMD numbers on receive for AGC slow, fast and off. Since the
ARRL does not do extended test reports anymore, it would be nice if
someone else did this test. From memory the TS870s had the best
inband IMD numbers on a receiver, and the Yaesu FT9000 had some
pretty high inband numbers at high signal levels.

If Elecraft has done a lot of work on the ALC design of the K3 as
they have indicated, it will be interesting to see what the outcome is.

Craig
VK3HE


--- In Elecraft_K3@..., Toby Deinhardt <dj7mgq@...> wrote:

Hi,

The draft translation of the "K3 Test from Bavaria" is now on the
Bavarian Contest Club website: <http://www.bavarian-contest-club.de>

English (Text only):
<http://www.bavarian-contest-club.de/reviews/32,699.html>

German (PDF with graphics and tables):
<http://www.bavarian-contest-club.de/projects/K3.pdf>


To see the graphs you need to download the German PDF.


vy 73 de toby




Yahoo! Groups Links





Re: [Elecraft_K3] Re: K3 Shipping Schedule Updated as of 1/16/08

Thom LaCosta <lacosta@...>
 

On Mon, 21 Jan 2008, John wrote:

With all the waiting going on, I'm a little disappointed in the
subreceiver situation. I pulled my order once because I got
impatient. I guess i will wait a little longer until this hiccup is
resolved.
Oh ye of little faith. The true believers will doubtless pray for your soul.

Thom,EIEIO
Email, Internet, Electronic Information Officer

www.baltimorehon.com/ Home of the Baltimore Lexicon
www.tlchost.net/hosting/ Web Hosting as low as 3.49/month


Re: K3 Shipping Schedule Updated as of 1/16/08

John <johnn1jm@...>
 

With all the waiting going on, I'm a little disappointed in the
subreceiver situation. I pulled my order once because I got
impatient. I guess i will wait a little longer until this hiccup is
resolved.

--- In Elecraft_K3@..., Corboy-Poteet <disorder@...>
wrote:

Here's a copy of what Wayne said today on the Elecraft reflector at
qth.net:


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

I wanted to give those who've ordered a K3 subreceiver a status
update.
First, thanks for your patience; I realize the subreceiver has been
significantly delayed. (This is also pushing out the DVR. Lyle,
KK7P
and I are collaborating on the PCBs and firmware for both units.)

When we release a product, it has to meet a number of criteria. Raw
performance by traditional measures is just one of these.
Fortunately
the subreceiver has met our expectations in this regard, with
dynamic
range virtually identical to that of the main.

But there are two other requirements that we must meet: excellent
mutual isolation between the main and receivers, and ease of
installation. Recently, we made the difficult decision that both
must
be improved.

Isolation between the receivers is critical to usability. For
example,
if you're listening to an extremely strong signal on one receiver,
none of it should leak into the other's I.F. After extensive
testing,
we concluded that we were close, but needed more isolation.

Regarding installation: Someone with no experience should be able to
install or remove the subreceiver without much difficulty. The
present
installation process is just a bit too complex once all other
modules
and their associated cables are in place; the left side, chassis
stiffener, and several cables have to be removed. This has a
secondary
effect, which is to make it very time-consuming to change crystal
filters on either receiver. We felt that we should improve this now,
before all fabrications were cast in stone.

Both isolation and installation can be improved with changes to our
original KRX3 PCB layout. I'm working on this now. Once the PC board
and shield designs are complete, we'll quickly build first articles
and run them through all of the tests again.

I'm confident that these improvements will allow the subreceiver to
live up to your expectations as well as ours. We'll post further
updates as we make progress.

(I know, I know -- "Stop rambling and get back to work!")

73, Wayne N6KR


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


Mike W5FTD




They also show the sub receiver and the voice recorder delayed
with no date at all


-------------- Original message from "Frank LaFranco"
<flafranco@...>: --------------
The K3 shipping schedule has been updated as of 1/16/08 on the
Elecraft web site.

Guessing I'll get my May 5th (no deposit) radio around mid
February.

73,
Frank - W6NEK
Day 257 and counting...


Re: K3 Test from Bavaria translation (draft) now on BCC website

w7tea
 

Toby, thank you very much--both to you and to the contest club--for testing the K3 and
posting your results.

73, Gary W7TEA

--- In Elecraft_K3@..., Toby Deinhardt <dj7mgq@...> wrote:

Hi,

The draft translation of the "K3 Test from Bavaria" is now on the
Bavarian Contest Club website: <http://www.bavarian-contest-club.de>

English (Text only):
<http://www.bavarian-contest-club.de/reviews/32,699.html>

German (PDF with graphics and tables):
<http://www.bavarian-contest-club.de/projects/K3.pdf>


To see the graphs you need to download the German PDF.


vy 73 de toby


K3 Test from Bavaria translation (draft) now on BCC website

Toby Deinhardt
 

Hi,

The draft translation of the "K3 Test from Bavaria" is now on the
Bavarian Contest Club website: <http://www.bavarian-contest-club.de>

English (Text only):
<http://www.bavarian-contest-club.de/reviews/32,699.html>

German (PDF with graphics and tables):
<http://www.bavarian-contest-club.de/projects/K3.pdf>


To see the graphs you need to download the German PDF.


vy 73 de toby


Re: [Elecraft_K3] K3 Shipping Schedule Updated as of 1/16/08

Mike Christiansen
 

Thanks Mike, I agree with the appraoch they are taking even though it is a litle disapointing

Mike, N4GW

-------------- Original message from Corboy-Poteet : --------------

Here's a copy of what Wayne said today on the Elecraft reflector at
qth.net:

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

I wanted to give those who've ordered a K3 subreceiver a status update.
First, thanks for your patience; I realize the subreceiver has been
significantly delayed. (This is also pushing out the DVR. Lyle, KK7P
and I are collaborating on the PCBs and firmware for both units.)

When we release a product, it has to meet a number of criteria. Raw
performance by traditional measures is just one of these. Fortunately
the subreceiver has met our expectations in this regard, with dynamic
range virtually identical to that of the main.

But there are two other requirements that we must meet: excellent
mutual isolation between the main and receivers, and ease of
installation. Recently, we made the difficult decision that both must
be improved.

Isolation between th e receivers is critical to usability. For example,
if you're listening to an extremely strong signal on one receiver,
none of it should leak into the other's I.F. After extensive testing,
we concluded that we were close, but needed more isolation.

Regarding installation: Someone with no experience should be able to
install or remove the subreceiver without much difficulty. The present
installation process is just a bit too complex once all other modules
and their associated cables are in place; the left side, chassis
stiffener, and several cables have to be removed. This has a secondary
effect, which is to make it very time-consuming to change crystal
filters on either receiver. We felt that we should improve this now,
before all fabrications were cast in stone.

Both isolation and installation can be improved with changes to our
original KRX3 PCB layout. I'm working on this now. Once the PC board
and shield designs are complete, we' ll quickly build first articles
and run them through all of the tests again.

I'm confident that these improvements will allow the subreceiver to
live up to your expectations as well as ours. We'll post further
updates as we make progress.

(I know, I know -- "Stop rambling and get back to work!")

73, Wayne N6KR

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

Mike W5FTD

> They also show the sub receiver and the voice recorder delayed with no date at all

>
> -------------- Original message from "Frank LaFranco"
> <flafranco@socal.rr.com>: --------------

> The K3 shipping schedule has been updated as of 1/16/08 on the Elecraft web site.
>
> Guessing I'll get my May 5th (no deposit) radio around mid February.
>
> 73,
> Frank - W6NEK
> Day 257 and counting.. .


Re: [Elecraft_K3] K3 Shipping Schedule Updated as of 1/16/08

Corboy-Poteet <disorder@...>
 

Here's a copy of what Wayne said today on the Elecraft reflector at
qth.net:


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

I wanted to give those who've ordered a K3 subreceiver a status update.
First, thanks for your patience; I realize the subreceiver has been
significantly delayed. (This is also pushing out the DVR. Lyle, KK7P
and I are collaborating on the PCBs and firmware for both units.)

When we release a product, it has to meet a number of criteria. Raw
performance by traditional measures is just one of these. Fortunately
the subreceiver has met our expectations in this regard, with dynamic
range virtually identical to that of the main.

But there are two other requirements that we must meet: excellent
mutual isolation between the main and receivers, and ease of
installation. Recently, we made the difficult decision that both must
be improved.

Isolation between the receivers is critical to usability. For example,
if you're listening to an extremely strong signal on one receiver,
none of it should leak into the other's I.F. After extensive testing,
we concluded that we were close, but needed more isolation.

Regarding installation: Someone with no experience should be able to
install or remove the subreceiver without much difficulty. The present
installation process is just a bit too complex once all other modules
and their associated cables are in place; the left side, chassis
stiffener, and several cables have to be removed. This has a secondary
effect, which is to make it very time-consuming to change crystal
filters on either receiver. We felt that we should improve this now,
before all fabrications were cast in stone.

Both isolation and installation can be improved with changes to our
original KRX3 PCB layout. I'm working on this now. Once the PC board
and shield designs are complete, we'll quickly build first articles
and run them through all of the tests again.

I'm confident that these improvements will allow the subreceiver to
live up to your expectations as well as ours. We'll post further
updates as we make progress.

(I know, I know -- "Stop rambling and get back to work!")

73, Wayne N6KR


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


Mike W5FTD

They also show the sub receiver and the voice recorder delayed with no date at all

-------------- Original message from "Frank LaFranco"
<flafranco@...>: --------------
The K3 shipping schedule has been updated as of 1/16/08 on the Elecraft web site.

Guessing I'll get my May 5th (no deposit) radio around mid February.

73,
Frank - W6NEK
Day 257 and counting...


Re: [Elecraft_K3] K3 Shipping Schedule Updated as of 1/16/08

Mike Christiansen
 

They also show the sub receiver and the voice recorder delayed with no date at all


 

-------------- Original message from "Frank LaFranco" : --------------

The K3 shipping schedule has been updated as of 1/16/08 on the Elecraft web site.
 
Guessing I'll get my May 5th (no deposit) radio around mid February.
 
73,
Frank - W6NEK
Day 257 and counting...


Re: [Elecraft_K3] K3 Shipping Schedule Updated as of 1/16/08

Mike Christiansen
 

Wow, I ordered mine mid-December.  Who knows how long it will be, but I figure it will be worth the wait

 

Mike, N4GW

-------------- Original message from "Frank LaFranco" : --------------

The K3 shipping schedule has been updated as of 1/16/08 on the Elecraft web site.
 
Guessing I'll get my May 5th (no deposit) radio around mid February.
 
73,
Frank - W6NEK
Day 257 and counting...


K3 Shipping Schedule Updated as of 1/16/08

Frank LaFranco <flafranco@...>
 

The K3 shipping schedule has been updated as of 1/16/08 on the Elecraft web site.
 
Guessing I'll get my May 5th (no deposit) radio around mid February.
 
73,
Frank - W6NEK
Day 257 and counting...


K3 - Windows Blue Screen with USB to Serial Adapters during firmware load. New Device Drivers required.

Dick Dievendorff <dieven@...>
 

Elecraft has received a number of reports of very slow firmware load, sometimes accompanied by a Windows “blue screen”, when using some USB to Serial Adapters when loading the DSP with the most recent versions of the K3 Utility.

 

Many USB to Serial Adapters, including the Elecraft KUSB, contain a Prolific Technologies Chip Set, and some of the earlier Prolific device drivers (including the one on the CD shipped with the KUSB) suffer exceptions during error recovery situations.  The result is a Windows “Blue Screen”.

 

If you have this sort of USB to Serial adapter, the remedy for the class of errors we’ve seen is to install an updated Prolific USB to Serial Adapter device driver. 

 

To determine what driver you have installed now, on Windows 2000, 2003, XP and Vista:

 

1)      Plug the USB to Serial Adapter into a USB port on your computer.  It doesn’t need to be connected to the K3 for this test.

2)      Right click the “Computer” or “My Computer” and select “Manage”.

3)      In the left pane of “Computer Management”, select “Device Manager”.

4)      In the right pane tree view, click the + sign next to Ports (COM and LPT).

5)      Look for a COM port that says something like “Prolific USB-to-Serial Comm Port (COM4)”

6)      Double click that entry to open a Properties viewer, and select the “Driver” tab.

7)      The driver manufacturer (Prolific) and driver version should be visible on the Driver tab.

 

If you are using Windows Vista, the appropriate device driver is the one you get from Windows Update when you first plug in the USB to Serial Adapter.   I have version 2.0.2.1, and it works fine with the K3 Utility.

 

If you are using Windows XP, Windows 2000, or Windows 2003, the currently available device driver is version 2.0.2.8, and it’s available from the Prolific web site, http://www.prolific.com.tw/eng/downloads.asp?ID=31.  This driver may also work on Vista, but I haven’t done that as I’m getting working drivers from the Microsoft Update facility.

 

Prolific Driver version 2.0.2.4 also works fine with the K3 Utility.

 

If you’re using the driver that came on the CD with the KUSB, this is an update you really want to make.  We’ve had at least a half-dozen reports of this sort of failure, and all were corrected by installing the current device driver from the Prolific site.

 

The K3 Utility issues standard Windows 32 API serial port requests.  However sometimes in error recovery situations a pending asynchronous Read operation must be cancelled (we waited a while, and it didn’t complete in time), and cancelling pending I/O has on occasion been an area of difficulty for some device drivers.   It’s hard to test.  Prolific has it right now.

 

The link to the Prolific web site is in the Troubleshooting section of the K3 Utility Help, and Eric has recently added a link to the Prolific Technologies driver update web page on the Elecraft K3 Software page at http://www.elecraft.com/K3/k3_software.htm.

 

The chipset in the KUSB is a Prolific Technologies 2303, and the top link on the page is the appropriate driver. Version 2.0.2.8, the file is named

 

wd_pl2303_v20019v2028.zip

 

Dick, K6KR

 

 


Re: [Elecraft] K1: Potential new product

slow2run2002 <clester@...>
 

Joe,please add this Mod,put all connections on top add cw tuning
indicator and water proof lid on top, the DIA & CIA NEED this Mod TO
help them CALL HOME. TOM N5RWJ.--- In
Elecraft_K3@..., "Joe Subich, W4TV" <lists@...> wrote:


If a really low power DSP could be made for the K1 and/or KX1
- say, one that consumes 10 to 15 mA from a nominal 6V supply,
less from a higher voltage - which features would you be seeking?

Selectable bandpass filters? Auonotch? Denoiser?
From a theoretical point of view, denoiser and bandpass filters.
Autonotch is of limited value with CW and these are CW radios.

Which would you be wiling to give up?
The "give up" is probably absolute minimum power consumption.

From a practical point of view, giving up some degree of
flexibility - perhaps a limited number of bandpass filters
and a fixed (in set-up) center frequency - would probably
be acceptable. With DSP it might also be reasonable to give
up some degree of performance (ultimate rejection) in the
crystal filters as they would be similar in function to the
roofing filter in the K3.

73,

... Joe, W4TV




-----Original Message-----
From: elecraft-bounces@...
[mailto:elecraft-bounces@...] On Behalf Of Lyle Johnson
Sent: Friday, January 11, 2008 9:33 AM
To: Elecraft@...
Subject: Re: [Elecraft] K1: Potential new product


If a really low power DSP could be made for the K1 and/or KX1
- say, one
that consumes 10 to 15 mA from a nominal 6V supply, less from
a higher
voltage - which features would you be seeking?

Selectable bandpass filters? Auonotch? Denoiser?

Which would you be wiling to give up?

No, there is no project like this in the works, but I tend to
think
about DSP...

Thanks!

Lyle KK7P

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