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[TenTec] Orion External T/R Switching

To: <tentec@contesting.com>
Subject: [TenTec] Orion External T/R Switching
From: w5yr@att.net (George, W5YR)
Date: Tue Apr 29 20:02:03 2003
Jim, a triggered sweep scope and a dummy load?

73/72, George   
Amateur Radio W5YR -  the Yellow Rose of Texas
Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
"In the 57th year and it just keeps getting better!"


----- Original Message ----- 
From: "Jim Reid" <jimr.reid@verizon.net>
To: <tentec@contesting.com>
Sent: Tuesday, April 29, 2003 6:52 PM
Subject: [TenTec] Orion External T/R Switching

> While waiting for hardware.......
> Am passing time reading the .pdf version of the Orion
> manual downloaded from the TT web site.
> I have a Henry linear, so is not a QSK amp such as TT
> sells.  I would like to know two bits of info:
> 1.  After CW key down,  and the "get ready" signal is presumably 
> sent via the External T/R line from the Orion to the amp immediately,
> how many milliseconds pass BEFORE RF exits the Orion
> coax terminal??
> 2.  The Orion manual then describes how to adjust the T/R
> hold time after key up.  But does so in terms of percent;
> factory default seems to be 20%......  of what??
> So many milliseconds,  or a percentage of a dit time,  or ???
> Anyone know answers to these questions,  sure don't want
> to be hot switching my linear inadvertently!  That is having the
> relays over there making/breaking while RF is  flowing!
> I had been using an Ameritron QSK-5 switch with my Omni VI+,
> before selling it, and after,  with my Pegasus.  But the Ameritron 
> gadget just had too many problems keeping it going,  so have 
> removed it and lost both QSK ability and my protection from hot 
> switching.
> So,  really would appreciate answers,  if anyone has them.
> 73,  Jim  KH7M
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