K3 FP Board

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K3 FP Board

Nick G3RWF
Just to record thanks to Elecraft for great service. Had a big problem with control from the front panel. Rather than prolong diagnosis and my attempts to cure the problem, Gary sent me a new front panel board which arrived here in UK in four working days. Now fitted, working and off to Uganda next Tuesday (5X1NH). Wonderful!
73 Nick G3RWF
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K3 AM feature request

drewko
Would it be possible to have a 1 KHz tuning step for AM? Unless I
missed something it seems the smallest AM coarse step is 5 KHz. 1 KHz
would be a lot better for tuning around the SWBC bands; 5 is just too
coarse. Thanks.

73,
Drew
AF2Z

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Re: K3 AM feature request

David Woolley (E.L)
[hidden email] wrote:
> Would it be possible to have a 1 KHz tuning step for AM? Unless I
> missed something it seems the smallest AM coarse step is 5 KHz. 1 KHz
> would be a lot better for tuning around the SWBC bands; 5 is just too
> coarse. Thanks.
>

Short wave broadcast stations are channelised with 5kHz channels; why
would 1kHz steps be useful?

--
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: K3 AM feature request

Alan Bloom
On Fri, 2008-06-20 at 13:42, David Woolley (E.L) wrote:
> [hidden email] wrote:
> > Would it be possible to have a 1 KHz tuning step for AM? Unless I
> > missed something it seems the smallest AM coarse step is 5 KHz. 1 KHz
> > would be a lot better for tuning around the SWBC bands; 5 is just too
> > coarse. Thanks.
> >
>
> Short wave broadcast stations are channelised with 5kHz channels; why
> would 1kHz steps be useful?

Outside of ITU Region 2 (the Americas) 9 kHz channel spacing is used on
the AM band.

Al N1AL


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Re: K3 AM feature request

Jim Wiley-2
In reply to this post by David Woolley (E.L)


Well, at least one reason is that some SW stations still insist on using
frequencies other than precisely on the 0 or 5 kHz marks.  Also, a
slower tuning rate makes it easier to "offset" the tuning to one side a
bit to help duck interference.  This is the "we don't need no stinkin'
rules" syndrome.  


SW listening and AM ham radio operation are the reasons that I insist on
having full AM capability in any HF ham
receiver/transmitter/transceiver  before I will purchase it.  Also, all
too many of them recently have, unfortunately, bought into the idea that
AM "must" have a faster tuning rate than other modes.  Not necessarily a
good idea, at least as far as I am concerned.  But then, perhaps I just
an OF.   Selectable tuning rates for _all_ modes, including  the very
slowest to the very fastest are the way to go.


- Jim, KL7CC


David Woolley (E.L) wrote:
> Short wave broadcast stations are channelised with 5kHz channels; why
> would 1kHz steps be useful?
>
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Re: K3 AM feature request

David Woolley (E.L)
In reply to this post by Alan Bloom
Alan Bloom wrote:

>
> Outside of ITU Region 2 (the Americas) 9 kHz channel spacing is used on
> the AM band.

Which is medium and long wave, not short wave. (I remember when the
200kHz standard frequency became 998kHz!)

--
David Woolley
Emails are not formal business letters, whatever businesses may want.
RFC1855 says there should be an address here, but, in a world of spam,
that is no longer good advice, as archive address hiding may not work.
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Re: K3 AM feature request

Ken Kopp-3
In reply to this post by David Woolley (E.L)
There are AM users in the SW spectrum that aren't
BC station on 5 kHz steps.

73! Ken Kopp - K0PP
     
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Re: K3 AM feature request

.k8dd.-2
In reply to this post by Jim Wiley-2
I agree with Jim ..... A fast tuning rate on AM is not necessarily good.
What is good is to be able to vary the rate to fit what the user likes .....
Like the FT-817 and IC-746.
And, Jim, being a live OF beats the heck out of the alternative!

72  73    Hank    K8DD
----- Original Message -----
From: "Jim Wiley" <[hidden email]>
To: "David Woolley (E.L)" <[hidden email]>
Cc: <[hidden email]>
Sent: Friday, June 20, 2008 4:58 PM
Subject: Re: [Elecraft] K3 AM feature request


>
>
> Well, at least one reason is that some SW stations still insist on using
> frequencies other than precisely on the 0 or 5 kHz marks.  Also, a slower
> tuning rate makes it easier to "offset" the tuning to one side a bit to
> help duck interference.  This is the "we don't need no stinkin' rules"
> syndrome.
>
> SW listening and AM ham radio operation are the reasons that I insist on
> having full AM capability in any HF ham receiver/transmitter/transceiver
> before I will purchase it.  Also, all too many of them recently have,
> unfortunately, bought into the idea that AM "must" have a faster tuning
> rate than other modes.  Not necessarily a good idea, at least as far as I
> am concerned.  But then, perhaps I just an OF.   Selectable tuning rates
> for _all_ modes, including  the very slowest to the very fastest are the
> way to go.
>
> - Jim, KL7CC
>
>
> David Woolley (E.L) wrote:
>> Short wave broadcast stations are channelised with 5kHz channels; why
>> would 1kHz steps be useful?
>>
> _______________________________________________
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>

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Re: K3 AM feature request

Geoffrey Mackenzie-Kennedy
In reply to this post by Ken Kopp-3

Ken Kopp wrote:


> There are AM users in the SW spectrum that aren't BC station on 5 kHz
> steps.

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

Many SW BC stations in Regions 1,2 and 3 aren't either especially in the
'Tropical BC Bands', a large number in S.America.

73,
Geoff
GM4ESD

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Re: K3 AM feature request

drewko
In reply to this post by David Woolley (E.L)
On Fri, 20 Jun 2008 21:42:37 +0100, you wrote:

>[hidden email] wrote:
>> Would it be possible to have a 1 KHz tuning step for AM? Unless I
>> missed something it seems the smallest AM coarse step is 5 KHz. 1 KHz
>> would be a lot better for tuning around the SWBC bands; 5 is just too
>> coarse. Thanks.
>>
>
>Short wave broadcast stations are channelised with 5kHz channels; why
>would 1kHz steps be useful?

The 5 khz tuning steps are awfully touchy, even at the lowest VFO rate
(100 counts per turn). That's 500 Khz per only one turn of the knob--
practically a complete "band". That is just too coarse for comfortable
tuning.  A little nudge and you've flown by 10 or 15 Khz.

The tuning steps for AM don't make any practical sense. FINE gives you
1 and 10 Hz, COARSE takes a huge jump to 5 KHz. Shouldn't there be
something between 10 Hz and 5 KHz? Seems like 100 Hz and/or 1 Khz
should be in there somewhere.  (Unless I've missed something here...)

73,
Drew
AF2Z



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Re: K3 AM feature request

Don Wilhelm-4
Drew,

Use the fine/coarse controls in conjunction with the RATE button.  Tap
the RATE button until the 100 Hz digit place blinks and that allows you
to easily tune in 50 Hz steps which is 5 kHz per revolution with a 100
count setting.  That is certainly good enough for me.

It takes a lot of manual reading along with some experimenting with the
K3 to discover all its flexibility - so for those who have not yet done
so, 'Read The Fine Manual'.  Fortunately, the default setting result in
a quite workable radio, so it is usable after only skimming the manual,
if you want more, a bit of study is required.

73,
Don W3FPR

[hidden email] wrote:

> The tuning steps for AM don't make any practical sense. FINE gives you
> 1 and 10 Hz, COARSE takes a huge jump to 5 KHz. Shouldn't there be
> something between 10 Hz and 5 KHz? Seems like 100 Hz and/or 1 Khz
> should be in there somewhere.  (Unless I've missed something here...)
>
> 73,
> Drew
> AF2Z
>  
>

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Re: K3 AM feature request

drewko
Thanks, Don. That is a big improvement. I did suspect that I was
missing something (and yes, I'm guilty of not having studied the
manual enough).

I notice that while in COARSE, tapping RATE drops you back into FINE.
It might be nice if instead it switched to, say, 500 Hz steps. But the
50 Hz steps are quite comfortable for HF AM.

73,
Drew
AF2Z


On Sat, 21 Jun 2008 08:48:27 -0400, Don W3FPR wrote:

>Drew,
>
>Use the fine/coarse controls in conjunction with the RATE button.  Tap
>the RATE button until the 100 Hz digit place blinks and that allows you
>to easily tune in 50 Hz steps which is 5 kHz per revolution with a 100
>count setting.  That is certainly good enough for me.
>
>It takes a lot of manual reading along with some experimenting with the
>K3 to discover all its flexibility - so for those who have not yet done
>so, 'Read The Fine Manual'.  Fortunately, the default setting result in
>a quite workable radio, so it is usable after only skimming the manual,
>if you want more, a bit of study is required.
>
>73,
>Don W3FPR
>
>[hidden email] wrote:
>> The tuning steps for AM don't make any practical sense. FINE gives you
>> 1 and 10 Hz, COARSE takes a huge jump to 5 KHz. Shouldn't there be
>> something between 10 Hz and 5 KHz? Seems like 100 Hz and/or 1 Khz
>> should be in there somewhere.  (Unless I've missed something here...)
>>
>> 73,
>> Drew
>> AF2Z
>>  
>>
>
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K3 RX eq for CW

drewko
In reply to this post by Don Wilhelm-4
Just curious, has anyone found RX eq to be useful for CW? Just
wondering what settings people like, if not flat.

73,
Drew
AF2Z

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Re: K3 RX eq for CW

N4LQ-2
Drew:
I have my sidetone pitch set for 550 Hz. The RX EQ is adjusted so that the
400 HZ band (button 4) is at +2 and the others above that are all set
for -16. This eliminated a lot of QRN and other band noise plus gives a
slight peak near the IF center. Speaker choice will play a roll in this
decision. 73
Steve Ellington
[hidden email]
----- Original Message -----
From: <[hidden email]>
To: <[hidden email]>
Sent: Saturday, June 21, 2008 9:16 AM
Subject: [Elecraft] K3 RX eq for CW


> Just curious, has anyone found RX eq to be useful for CW? Just
> wondering what settings people like, if not flat.
>
> 73,
> Drew
> AF2Z
>
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Ethernet to serial adapters

Manuel Maseda
 
Hello,

Anyone have any experience with Ethernet to serial adapters?  Would it be
possible to connect one to the K3 serial port?

Manuel  W4SSB

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Re: Ethernet to serial adapters

Brian Lloyd-6

On Jun 21, 2008, at 7:03 AM, Manuel Maseda wrote:

>
> Hello,
>
> Anyone have any experience with Ethernet to serial adapters?  Would  
> it be
> possible to connect one to the K3 serial port?

Yes, but the problem you face is that there is no standard way to make  
that device look like a standard serial port to the OS running your  
logging or rig control software. Make sure that the ethernet-to-serial  
adaptor comes with an OS-specific driver that then looks like a  
standard serial port to any programs running on the computer. Many of  
these devices are intended to accept only a TELNET or SSH connection.

Some EtS device work as a virtual serial cable with one device  
attached to the serial port on your computer and another attached to  
the serial port on the controlled device (K3 in this case). That does  
allow you to control something over a long distance. This approach  
seems to work pretty well and I have used this when controlling  
devices that have a specific communications protocol.

I have experimented with bluetooth adaptors which are much better  
supported in the various OS's as serial devices. Even so I have  
experienced mixed results. I have found that, in all my test cases, I  
could not change the baud rate under program control and had to use  
manual settings. Likewise I couldn't get the control lines, i.e. RTS  
and DTR, to change under program control.

So you are going to have to try various devices to see if they will  
work. Don't expect perfection.

--

73 de Brian, WB6RQN
Brian Lloyd - brian HYPHEN wb6rqn AT lloyd DOT com



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Re: Ethernet to serial adapters

Bob Cunnings NW8L
In reply to this post by Manuel Maseda
At work I have used and recommend to customers the Extron adaptors,
such as this single-port model:

http://www.extron.com/product/printable.aspx?id=iplts1

It offers a TCP port through which the serial stream can be tunneled.
The built in webserver allows the thing to be configured using a web
browser. There's a whole family of them with differing numbers of
ports.

All well and good, but your control application (whatever it is) need
to be network aware, capable of acting as a TCP client etc.

I incorporated support for the Extron IP Link family directly into the
control panel software for our products, but have no idea whether or
not common PC based ham radio control programs support this kind of
connectivity - I don't use them, I get enough of all that at work.

Bob NW8L

On Sat, Jun 21, 2008 at 8:03 AM, Manuel Maseda <[hidden email]> wrote:

>
> Hello,
>
> Anyone have any experience with Ethernet to serial adapters?  Would it be
> possible to connect one to the K3 serial port?
>
> Manuel  W4SSB
>
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Re: Ethernet to serial adapters

Augie "Gus" Hansen
In reply to this post by Manuel Maseda
Manuel Maseda wrote:
> ...
> Anyone have any experience with Ethernet to serial adapters?  Would it be
> possible to connect one to the K3 serial port?
>  

Lantronix and other manufacturers make some very nice Ethernet-to-serial
modules. My experience developing firmware for a security system
controller has shown that the XPort (wired) and WiPort (wireless)
versions of the Lantronix modules are very reliable and easy to work
with. They are designed to be soldered onto a circuit board, are RoHS
compliant, and are available from Mouser. The XPort costs about $50-$60
and the WiPort about twice that amount.

The K3 RS-232 port limits the RX/TX speed to 38,400 bps, which is fast
enough for our purposes. These modules are highly configurable and have
built-in Web server support. They can be configured via the Web
interface or via telnet. Up to 256-bit AES encryption is supported on
some versions of these modules.

The modules need regulated 3.3v power and have CMOS/TTL level interface
line on the backside (serial) terminals. A level converter (e.g.,
MAX232) would be needed to interface with the K3's RS-232 port if the
module is attached externally, requiring a source of 5v power. (If
you're thinking of making a modification that is internal to the K3, the
module can interface directly to the PIC microcontroller at up to the
PIC-imposed limit of 115,200 bps, but that would require considerable
hardware hacking. Maybe Wayne can put this on the wish list for a K3A or
K4 product.)

Gus Hansen
KB0YH

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RE: Ethernet to serial adapters

Joe Subich, W4TV-3
In reply to this post by Bob Cunnings NW8L

Eltima's Serial to Ethernet Communications software library
http://www.eltima.com/products/serial-over-ethernet/ allows
mapping an Ethernet to serial adapter to a virtual port on a
local computer.   There may be similar products ... I have
not looked for them.

73,

   ... Joe, W4TV
 


> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Bob Cunnings
> Sent: Saturday, June 21, 2008 11:31 AM
> To: Manuel Maseda
> Cc: [hidden email]
> Subject: Re: [Elecraft] Ethernet to serial adapters
>
>
> At work I have used and recommend to customers the Extron
> adaptors, such as this single-port model:
>
> http://www.extron.com/product/printable.aspx?id=iplts1
>
> It offers a TCP port through which the serial stream can be
> tunneled. The built in webserver allows the thing to be
> configured using a web browser. There's a whole family of
> them with differing numbers of ports.
>
> All well and good, but your control application (whatever it
> is) need to be network aware, capable of acting as a TCP client etc.
>
> I incorporated support for the Extron IP Link family directly
> into the control panel software for our products, but have no
> idea whether or not common PC based ham radio control
> programs support this kind of connectivity - I don't use
> them, I get enough of all that at work.
>
> Bob NW8L
>
> On Sat, Jun 21, 2008 at 8:03 AM, Manuel Maseda
> <[hidden email]> wrote:
> >
> > Hello,
> >
> > Anyone have any experience with Ethernet to serial
> adapters?  Would it
> > be possible to connect one to the K3 serial port?
> >
> > Manuel  W4SSB
> >
> > _______________________________________________
> > Elecraft mailing list
> > Post to: [hidden email]
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> >
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RE: K3 RX eq for CW

Bud Semon N7CW
In reply to this post by N4LQ-2
Steve,

Thanks for this insight.  Can the RX EQ be saved per mode, that is, one for
SSB and one for CW?

Thanks and 73, Bud  N7CW

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of n4lq
Sent: Saturday, June 21, 2008 6:44 AM
To: [hidden email]; [hidden email]
Subject: Re: [Elecraft] K3 RX eq for CW

Drew:
I have my sidetone pitch set for 550 Hz. The RX EQ is adjusted so that the
400 HZ band (button 4) is at +2 and the others above that are all set
for -16. This eliminated a lot of QRN and other band noise plus gives a
slight peak near the IF center. Speaker choice will play a roll in this
decision. 73
Steve Ellington
[hidden email]
----- Original Message -----
From: <[hidden email]>
To: <[hidden email]>
Sent: Saturday, June 21, 2008 9:16 AM
Subject: [Elecraft] K3 RX eq for CW


> Just curious, has anyone found RX eq to be useful for CW? Just
> wondering what settings people like, if not flat.
>
> 73,
> Drew
> AF2Z
>
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