linking K3 with PC with blue tooth

[Johnny Siu]

Hello Group,

We now have either RS232 or USB converter to link K3 with the computer.  Is
there a way to link K3 with the computer by blue tooth? 


 cheers,


Johnny VR2XMC


     
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[Jim Cox]

You can purchase many rs232 to Bluetooth adapters.   Do a search on the net
for rs232 to Bluetooth.

Jim K4JAF


----- Original Message -----
From: "Johnny Siu" <[hidden email]>
To: "Elecraft" <[hidden email]>
Sent: Monday, December 13, 2010 7:27 AM
Subject: [Elecraft] linking K3 with PC with blue tooth


Hello Group,

We now have either RS232 or USB converter to link K3 with the computer. Is
there a way to link K3 with the computer by blue tooth?


cheers,


Johnny VR2XMC



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[Johnny Siu]

Thanks, Jim.  I got it now from web search.  With blue tooth connection, RFI
from PC to K3 will be eliminated.
 cheers,


Johnny VR2XMC



----- 郵件原件 ----
寄件人﹕ Jim Cox <[hidden email]>
收件人﹕ Johnny Siu <[hidden email]>; ElecraftQRXQRXQRX List
<[hidden email]>
傳送日期﹕ 2010/12/13 (一) 9:47:47 PM
主題： Re: [Elecraft] linking K3 with PC with blue tooth

You can purchase many rs232 to Bluetooth adapters.  Do a search on the net for
rs232 to Bluetooth.

Jim K4JAF


----- Original Message ----- From: "Johnny Siu" <[hidden email]>
To: "Elecraft" <[hidden email]>
Sent: Monday, December 13, 2010 7:27 AM
Subject: [Elecraft] linking K3 with PC with blue tooth


Hello Group,

We now have either RS232 or USB converter to link K3 with the computer. Is
there a way to link K3 with the computer by blue tooth?


cheers,


Johnny VR2XMC


     
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[Pete Smith N4ZR]

Unless, of course, your transmitted RF causes problems for the Bluetooth
adapter.

73, Pete N4ZR

The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com,
spots at telnet.reversebeacon.net, port 7000



On 12/13/2010 8:56 AM, Johnny Siu wrote:

> Thanks, Jim.  I got it now from web search.  With blue tooth connection, RFI
> from PC to K3 will be eliminated.
>   cheers,
>
>
> Johnny VR2XMC
>
>
>
> ----- 郵件原件 ----
> 寄件人﹕ Jim Cox<[hidden email]>
> 收件人﹕ Johnny Siu<[hidden email]>; ElecraftQRXQRXQRX List
> <[hidden email]>
> 傳送日期﹕ 2010/12/13 (一) 9:47:47 PM
> 主題： Re: [Elecraft] linking K3 with PC with blue tooth
>
> You can purchase many rs232 to Bluetooth adapters.  Do a search on the net for
> rs232 to Bluetooth.
>
> Jim K4JAF
>
>
> ----- Original Message ----- From: "Johnny Siu"<[hidden email]>
> To: "Elecraft"<[hidden email]>
> Sent: Monday, December 13, 2010 7:27 AM
> Subject: [Elecraft] linking K3 with PC with blue tooth
>
>
> Hello Group,
>
> We now have either RS232 or USB converter to link K3 with the computer. Is
> there a way to link K3 with the computer by blue tooth?
>
>
> cheers,
>
>
> Johnny VR2XMC
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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[John Ragle]

My education needed: why would (in principle) using a Bluetooth
connection to a K3 remove "PC interference?" All the clocks and
clock-generated sharp-edged waveforms will still be present...

I don't want to re-start the manifold discussions of PC interference,
just to have this one item clarified...

Thanks to the list...

John Ragle -- W1ZI
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[Guy, K2AV]

It would remove the interference possibly conduited on the USB RS232
cable.  It would remove the interference sometimes originating from
the USB RS232 cable itself.  It would remove the constantly meandering
drivers being changed to accommodate yet another marginal application
to the "universal" soup.

Blue tooth MIGHT have the serious advantage of the crowd passing it
by, leaving it alone to be STABLE, after the fashion of RS232, whose
drivers are stable because nobody is developing to them any more,
hence no need for change.

Beyond that?  Probably not much.  Then there is the downside of
possible issues with a given Bluetooth device, the undiscovered
country, so to speak.  An unknown enemy always seems more friendly
than the known one you love to hate.

73, Guy.

On Mon, Dec 13, 2010 at 9:41 AM, John Ragle <[hidden email]> wrote:

> My education needed: why would (in principle) using a Bluetooth
> connection to a K3 remove "PC interference?" All the clocks and
> clock-generated sharp-edged waveforms will still be present...
>
> I don't want to re-start the manifold discussions of PC interference,
> just to have this one item clarified...
>
> Thanks to the list...
>
> John Ragle -- W1ZI
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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[Jim Brown-10]

On 12/13/2010 6:41 AM, John Ragle wrote:
> My education needed: why would (in principle) using a Bluetooth
> connection to a K3 remove "PC interference?" All the clocks and
> clock-generated sharp-edged waveforms will still be present...
>

RFI often happens by more than one mechanism.

Most RFI  is radiated by conductors acting as antennas. Those conductors
can be INSIDE the box, AND OUTSIDE the box.  Also in general, the longer
the wire, the better it is as an antenna at HF. When you reduce the
number and length of wires connected to the box, or when you choke them
to kill RF current on those wires, you take them out the picture, and
are left with radiation from INSIDE the box due to its poor shielding
(and poor circuit board layout).  This radiated RF is picked up by the
ham antenna, so the distances that matter are the distance between the
noise source (computer) and that antenna.

For example -- many laptops will radiate trash, especially on some of
the higher HF bands via their power cable. If you remove the power cable
and run them on battery, the trash sometimes goes away (or gets weaker).

Nothing you can do with external cables will kill radiation from wiring
inside the box, so when you choke the cables, that radiation will still
be there (but weaker, because the antenna is shorter).

RF trash can also be CONDUCTED via Pin One Problems in both ham gear and
computers when they are interconnected.   Pin One Problems put RF onto
so-called "ground" contacts (for example, inside the computer at the
serial or USB port), and Pin One Problems couple RF from an improper
shield connection into the radio.   For this mechanism, no antenna
action is involved -- the RF is conducted on the cable shield because
the shield is not properly connected on both ends.

For a tutorial on the Pin One Problem, and how to deal with RFI, see

http://audiosystemsgroup.com/publish.htm   and

http://audiosystemsgroup.com/RFI-Ham.pdf

Another common coupling mechanism for RF trash is Pin One problems in TV
sets and other consumer electronics putting that trash onto the shields
of cables (like the CATV cable), where it is then radiated by the CATV
system.


73, Jim Brown K9YC


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[oe9fwv]

Johnny,

Johnny Siu schrieb am 13 Dec 2010 um 21:27:

> We now have either RS232 or USB converter to link K3 with the computer.  Is
> there a way to link K3 with the computer by blue tooth? 

I am using a Aircable device:
http://www.aircable.net/index.php

it is this product:
http://www.aircable.net/products/serial5.php

there are others on the market of course.
Another one I tried:
http://www.blueserial.de/

I use these devices for a wireless connection to my Ptc-2 controllers.
It eleminates the problem of RF into the serial cable.

73! de Werner OE9FWV



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[Johnny Siu]

Thanks Dr. Werner.

I will buy one of these adaptors and report back to this group later.

 73,


Johnny VR2XMC



----- 郵件原件 ----
寄件人﹕ Dr. Werner Furlan <[hidden email]>
收件人﹕ Johnny Siu <[hidden email]>
副本(CC) [hidden email]
傳送日期﹕ 2010/12/14 (二) 7:16:30 AM
主題： Re: [Elecraft] linking K3 with PC with blue tooth

Johnny,

Johnny Siu schrieb am 13 Dec 2010 um 21:27:

> We now have either RS232 or USB converter to link K3 with the computer.  Is
> there a way to link K3 with the computer by blue tooth? 

I am using a Aircable device:
http://www.aircable.net/index.php

it is this product:
http://www.aircable.net/products/serial5.php

there are others on the market of course.
Another one I tried:
http://www.blueserial.de/

I use these devices for a wireless connection to my Ptc-2 controllers.
It eleminates the problem of RF into the serial cable.

73! de Werner OE9FWV


     
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[GARY-2]

Yes. Search for IOGEAR GBS301.
Gary
N6LRV

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Johnny Siu
Sent: Monday, December 13, 2010 5:27 AM
To: Elecraft
Subject: [Elecraft] linking K3 with PC with blue tooth

Hello Group,

We now have either RS232 or USB converter to link K3 with the computer.  Is
there a way to link K3 with the computer by blue tooth? 


 cheers,


Johnny VR2XMC


     
______________________________________________________________
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[Gary Gregory]

Neat device, shame we couldn't do audio as well..:-(

Gary

On Tue, Dec 14, 2010 at 1:23 PM, Gary <[hidden email]> wrote:

> Yes. Search for IOGEAR GBS301.
> Gary
> N6LRV
>
> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Johnny Siu
> Sent: Monday, December 13, 2010 5:27 AM
> To: Elecraft
> Subject: [Elecraft] linking K3 with PC with blue tooth
>
> Hello Group,
>
> We now have either RS232 or USB converter to link K3 with the computer.  Is
> there a way to link K3 with the computer by blue tooth?
>
>
>  cheers,
>
>
> Johnny VR2XMC
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
> ______________________________________________________________
> Elecraft mailing list
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>
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>

--
Gary
VK4FD - Motorhome Mobile
http://www.qsl.net/vk4fd/
K3 #679, P3 #546
For everything else there's Mastercard!!!
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