[Elecraft] K3 f/w updates and Keyspan USB to serial port adapter

[Dick Dievendorff]

John, I just loaded my K3's firmware successfully with a Keyspan USA-19H USB
Serial Adapter.  I used a Sony Vaio VGN-FZ150E laptop with Windows Vista.  I
first installed device drivers from the Keyspan web site.

However the Keyspan USA-19H I have here has a 3' cable, and the fasteners on
the DB-9 connector are "nuts", so it won't mate with the back of the K3,
which also has nuts.  You'll need a M-F serial cable with screw connectors
on each end. 

This fastener gender issue is pretty common with USB adapters; the only one
I've seen that mates correctly (has screws on the DB-9 end) is the KUSB sold
by Elecraft.  There may be others, I just haven't seen them.  For me a 6'
serial extension cord is not an issue at all, so it doesn't matter that much
to me.  Your preferences may vary...

73 de Dick, K6KR


-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Dick Dievendorff
Sent: Tuesday, December 11, 2007 2:04 PM
To: 'John Reiser'; elecraft at mailman.qth.net
Subject: RE: [Elecraft] K3 f/w updates and Keyspan USB to serial port
adapter

I can't make promises, but it has a very good chance of working well.
Keyspan has a pretty good reputation.  I have one here that I'm going to
test with a couple of computers.

My experience has been that all USB adapters will work with some computers,
and no USB adapters will work with all computers.  My experience with serial
ports is that they tend to be much more robust.  

I'm continuing to make improvements in USB to Serial Adapter error recovery
which help with some marginal cases. 

I'll send another note after I've done my testing with a Sony Vaio laptop I
have here as well as my desktop system. 

Dick, K6KR


-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of John Reiser
Sent: Tuesday, December 11, 2007 1:32 PM
To: elecraft at mailman.qth.net
Subject: [Elecraft] K3 f/w updates and Keyspan USB to serial port adapter

Hello,

Can anyone tell me definitively whether or not my Keyspan USB-to-serial-port
adapter will be suitable for downloading the K3 firmware updates?

Thanks and 73,

John, W2GW

(2nd run K3 - May 29th) 
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