[Elecraft] Problems with erratic USB/serial connection

[Jim's Desktop]

Dennis,
What Doug said and the fact that the Chinese plagiarized the Prolific 
chip a while back but didn't get an exact copy, so Prolific fixed their 
drivers to recognize the fake chips and stop working.  That seems to 
have caused some people problems with even the legitimate ones like 
Elecraft sold originally.  I wound up getting a USB programmer for one 
of the TYT handi-talkies that had the fake Prolific chip in it.  Screwed 
up everything for a while.  Then I found out that the TYT used the same 
type of cable the Kenwood ones do and I went to a real RS-232 
programming cable cable from Kenwood that worked just fine.

That could be the problem you're running into.

Jim - W0EB

------ Original Message ------
From: "Doug Person via Elecraft" <elecraft at mailman.qth.net>
To: elecraft at mailman.qth.net
Sent: 5/27/2014 3:31:49 PM
Subject: Re: [Elecraft] Problems with erratic USB/serial connection

>Maybe the best move is to go with the latest FTDI serial -to-usb cable. 
>They have improved quite a bit over 6 years or more.
>73, Doug -- K0DXV
>
>On 5/27/2014 1:01 PM, Walter Underwood wrote:
>>Elecraft switched to FTDI chips in mid-2010, so the Prolific driver 
>>isn't used for more recent cables. This page has drivers for both 
>>chips.
>>
>>http://www.elecraft.com/K3/k3_software.htm#drvrs
>>
>>wunder
>>K6WRU
>>
>>On May 27, 2014, at 9:11 AM, "Dennis McAlpine" 
>><dbmcalpine at earthlink.net> wrote:
>>
>>>I have been using the KUSB USB/serial converter between my K3 and PC 
>>>for
>>>both DXLab and n1mm. Lately, I have been having trouble with erratic
>>>frequency readings, mainly on n1mm but sometimes on DXLab. On n1mm, 
>>>this
>>>seems to happen mainly when I change bands or after the radio has 
>>>been in
>>>standby without transmitting for a while. I also have to run the USB 
>>>at
>>>19200 rather than 38400. I updated the Prolific driver with no 
>>>effect.
>>>Anyone got a solution to this problem? Barring that, what are people 
>>>using
>>>for a USB/serial converter now days since I have used the old KUSB 
>>>for many
>>>years now? Thanks.
>>>
>>>73,
>>>
>>>Dennis, K2SX
>>>
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>>--
>>Walter Underwood
>>wunder at wunderwood.org
>>
>>
>>
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>
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