First dot (was Re: [TenTec] Orion in action)

[Joe Giacobello]

Carl, thanks for your reply and the enlightenment.  I now understand 
what you were actually referring to.  Your description of the QSK delay 
makes sense because I can hear the Orion's T/R relay clicking in synch 
with my keying irrespective of the delay setting.  So they're only 
controlling the time that the audio's off while the T/R relay follows 
the keying.

I understand the function of the "Ext T/R delay" for the amplifier, but 
would it also control the delay of the relays in the Orion?  That might 
solve the limitations on the delay at slower CW speeds that I was 
referring to and also minimize wear and tear on the Orion's T/R relay?  
I'll check it.

73, Joe

Carl Moreschi wrote:

>No, the QSK delay has nothing to do with this.  All the QSK delay does it
>change the time the receiver audio comes back on after transmitting.  The
>amp relay delay time is controlled by "Ext T/R delay".  This is set from 0
>percent to 100 percent with 100 percent equaling one second.  This control
>sets the extra time the amp key line stays on after the key line goes off.
>It is used to keep the amp antenna relay from coming up and down for each CW
>element.
>
>The keying problem That I was refering to in the earlier post can only be
>comtrolled insode the Orion firmware.  It relates to how long the
>transmitter actually transmits compared to how the CW key line is on.  The
>transmitter keys 20 milliseconds (that 20/1000 seconds) after the CW key
>line comes on.  In order to make up for this loss of 20 milliseconds, the
>transmitter should continue to stay on for 20 milliseconds after the key
>line goes off but it doesn't.  It only stays on for another 12 milliseconds
>making all CW elements short by about 8 milliseconds.  I see this as a
>firmware bug that should be corrected.
>
>Carl Moreschi N4PY
>Franklinton, NC
>----- Original Message -----
>From: "Joe Giacobello" <k2xx at swva.net>
>To: <tentec at contesting.com>
>Sent: Thursday, March 25, 2004 3:17 PM
>Subject: Re: First dot (was Re: [TenTec] Orion in action)
>
>
>  
>
>>Carl and others, I am a new Orion owner and I have been trying to extend
>>the relay delay (or on time) by increasing the "QSK delay" setting.  I
>>am practically at a 100% and still the delay is quite short, especially
>>for speeds below 20 WPM.  When you refer to holding "the keying output
>>for about 12 seconds", are you talking about this setting?  I presume
>>that this setting is the only way to control the CW delay for non-QSK
>>operation?  If so, it is a serious limitation.
>>
>>73, Joe
>>
>>Carl Moreschi wrote:
>>
>>    
>>
>>>Yes, they are all shortened.  In the tentec keying scheme, all dits and
>>>      
>>>
>dahs
>  
>
>>>are the first one.  The Orion needs to keep the keying held down for
>>>      
>>>
>about 8
>  
>
>>>milliseconds longer when the key line is released.  The current scheme
>>>      
>>>
>keys
>  
>
>>>the radio about 20 milliseconds after the key line is grounded but only
>>>holds the keying output for about 12 milliseconds after the key line is
>>>released.  This should be able to be corrected in a future firmware
>>>      
>>>
>release.
>  
>
>>>Carl Moreschi N4PY
>>>Franklinton, NC
>>>----- Original Message -----
>>>From: "Carter Grabarczyk" <k8vt at ameritech.net>
>>>To: <tentec at contesting.com>
>>>Sent: Thursday, March 25, 2004 12:58 PM
>>>Subject: First dot (was Re: [TenTec] Orion in action)
>>>
>>>
>>>
>>>
>>>      
>>>
>>>>Tommy wrote:
>>>>
>>>>
>>>>
>>>>        
>>>>
>>>>>And yes, there is some clipping on the first couple of dot on the
>>>>>Orion.
>>>>>Tom - W4BQF
>>>>>
>>>>>
>>>>>          
>>>>>
>>>>Been reading about this topic for awhile. I also saw the keying picture
>>>>in QST with the first dot shortened.
>>>>
>>>>However, I'm confused. With QSK, isn't *every* dot the first dot? (thus
>>>>if one was shortened, you would think they would all be shortened).
>>>>
>>>>73/Carter/K8VT
>>>>
>>>>_______________________________________________
>>>>TenTec mailing list
>>>>TenTec at contesting.com
>>>>http://lists.contesting.com/mailman/listinfo/tentec
>>>>
>>>>
>>>>        
>>>>
>>>_______________________________________________
>>>TenTec mailing list
>>>TenTec at contesting.com
>>>http://lists.contesting.com/mailman/listinfo/tentec
>>>
>>>
>>>
>>>
>>>      
>>>
>>_______________________________________________
>>TenTec mailing list
>>TenTec at contesting.com
>>http://lists.contesting.com/mailman/listinfo/tentec
>>    
>>
>
>_______________________________________________
>TenTec mailing list
>TenTec at contesting.com
>http://lists.contesting.com/mailman/listinfo/tentec
>
>
>  
>