[Elecraft] fwd: Sending Computer Morse

Allen Brier N5XZ n5xz at earthlink.net
Thu Sep 27 13:16:21 EDT 2012


I have a strange problem with my USB keyer. It also seems to suffer from some sort of timing issue...it occasionally hesitates or "stutters" whithin characters and it is very annoying. I don't understand how that can be happening, any ideas?

Computer: Win 7
Software: LOGic 9
USB Inteface: RigExpert Plus

Allen N5XZ K3 #2324


-----Original Message-----
>
>Message: 1
>Date: Thu, 27 Sep 2012 08:30:37 -0700
>From: Vic K2VCO <k2vco.vic at gmail.com>
>Subject: Re: [Elecraft] Fwd:  sending computer morse?
>To: elecraft at mailman.qth.net
>Message-ID: <5064711D.3080800 at gmail.com>
>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>It depends a lot on what your computer is doing. For years I used DTR keying with N1MM and 
>a slow computer, and I couldn't understand why people claimed that there were problems 
>with this. But I never operate 'assisted' by Internet connections, clusters, etc. in 
>contests. So that may be the reason it worked as well as it did.
>
>Anyway I recently got a Winkey USB, and was surprised at how much better the 
>computer-generated CW sounded! Also, the Winkey offers PTT switching that is smoother and 
>faster than the semi-QSK in the K3.
>
>The one downside (for me) is that I absolutely /hate/ the stand-alone keyer function. I 
>just cannot send with it without making lots of errors, despite trying numerous settings 
>of the paddle sensing function.
>
>I am used to mode B iambic keying, and I set all my keyers for that mode. The best one for 
>me is the Idiom Press Logikey K3. It is better than the internal K3 keyer, which is better 
>than the Winkey. So I still use the Logikey for my hand sending.
>
>On 9/27/2012 6:48 AM, Don Wilhelm wrote:
>> Keying via DTR or RTS will work with the simple transistor circuit, but
>> it is subject to timing problems created by the operating system.  There
>> is no way for an application to directly control a port, so the
>> application has to pass the request to the operating system and then the
>> operating system will control the port when it deems appropriate.  That
>> may be OK at slow CW speeds, but the timing becomes more critical at
>> higher speeds.  Enter the WinKeyer to solve that problem.
>>
>> 73,
>> Don W3FPR
>>
>> On 9/26/2012 4:26 PM, Matt Maguire wrote:
>>> You can do it cheaper by building a simple transistor circuit that allows you computer to key the radio via the computer's RS232 serial port. Not quite as good as a Winkeyer, but gets you on air very quickly so you can have a play.
>>>
>>> 73, Matt VK2ACL
>
>
>-- 
>Vic, K2VCO
>Fresno CA
>http://www.qsl.net/k2vco/
>



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