[Elecraft] RS232 troubles

[Guy Olinger K2AV]

Dimly powered USB connectors are as common as nails in computer land.
It's a favorite cheap, cheap trick by the bulk manufacturers, where
even pennies multiplied by a million units is a lot of money.

I have had that kind of problem in just about every PC, laptop I ever
bought. Follow Harry's advice: Powered hub.

73, Guy.

On Wed, Feb 18, 2015 at 12:15 PM, Harry Yingst via Elecraft
<elecraft at mailman.qth.net> wrote:
> You may need to use a powered hub
> Many laptops do not put out enough of a level to work properly
>
>
>       From: Karel Karmasin <ok2fd at seznam.cz>
>  To: elecraft at mailman.qth.net
>  Sent: Wednesday, February 18, 2015 11:03 AM
>  Subject: [Elecraft] RS232 troubles
>
> Hi there,
>
> I have following problems with my RS232 K2 connection:
> On a desktop PC with WIN7 everything working OK, all COM ports including
> USB/COM adapter running without any issue. When I am reconnected same
> USB/COM adapter with the same cable (between K2 and adapter) to the USB
> port on laptop, no communication. Of course the driver in laptop is
> installed and from the utilities and hardware control looks all OK. USB
> ports on laptop are working (checked with USB flash). All parameters on
> the COM port are the same as on desktop PC. I am on the end of my
> knowledges now, any help?
>
> Karel, OK2FD
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