I had a converter with the prolific chipset and the driver created such
problems in my computer that I had to reload the OS in my Win7 laptop! I
found the Sabrent brand (They advertise FTDI chipset on the package) that
worked flawlessly (used two with a single driver installed to control K3
from a Win7 laptop) BUT the noise output with them was very high ... So now
shopping around for ones with shielded cables. Anyway ... for the moment ...
back to my HB Win2000 machine with real serial ports and NO issues. I am
looking at Don's suggestion with the Edgeport unit.
My 2 cents.
73, Mike WA5POK
--------------------------------------------------
From: "John Lemay" <j...@carltonhouse.eclipse.co.uk>
Sent: Wednesday, November 06, 2013 3:49 AM
To: <elecraft@mailman.qth.net>
Subject: Re: [Elecraft] Serial Connection for K2
I similarly spent ages hunting down noise from my PC and associated
cables.
There are USB leads available which have a transparent outer sheath, which
"show off" the silver plated screen. I thought this was just a gimmick,
but
it turns out they were quite effective. Remember you'll probably need
ferrites on both ends of the run with a minimum of one turn through each
ferrite. For many purposes, just clipping a choke on the cable is not
effective - depending on your frequency of interest and the level of
noise.
Good luck !
John G4ZTR
-----Original Message-----
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Tom Blahovici
Sent: 06 November 2013 06:28
To: d...@w3fpr.com; elecraft@mailman.qth.net
Subject: Re: [Elecraft] Serial Connection for K2
Hi,
I see ebay has some 8 port Edgeports for $50.
I'm looking to cut down on computer generate noise in my shack. Currently
I
have 6 or 7 usb to serial adapters. I reduced noise quite a bit as shown
on
the P3 using some ferrite cores but the whole mess is now quite a sore
sight. Not only that you need longer cables to wrap through those cores.
So here's a few questions: is it better to run one high quality USB cable
to
a device such as an edge port and then run serial cables from there or
have
many usb to serial converters and extensions?
Anyone have a source for properly shielded USB cables?
Thanks
On Nov 5, 2013, at 8:54 PM, Don Wilhelm <w3...@embarqmail.com> wrote:
Tom,
Use a USB to serial adapter with an FTDI chipset - the Prolific chipset
does not like to run at the slower rate required by the K2.
I have also had success with a Keyspan adapter.
If you want to go 'first class', use an Edgeport USB to serial
converter -
I have a 4 port model that works flawlessly. Note that this is usually
referred to as a 'converter' rather than an 'adapter' - it is often used
in
commercial environments and is quite robust - those termed 'adapter' are
usually intended for the consumer market, and the relative price indicates
that fact. When I bought mine, they were selling on Ebay for a very low
price, someone had a big pile of used ones that he was selling off.
73,
Don W3FPR
On 11/5/2013 8:08 PM, Tom Field wrote:
I just completed the KPA100 and KIO2 mods for my K2. I have a new Dell
desktop running Windows 8. I don't have a serial port on the machine.
What
is the recommended conversion from serial to USB?
Tom F.
KI6NRD
Elecraft K2 #7432
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