Bob Henderson wrote:
The plug 52 problem arose because a segment of established Omni users
expressed a strong preference for sidetone volume to be independent of RX AF
gain setting. Ten Tec responded to user pressure by introducing an analogue
switch (U7b) into the VI+ IF/AF board which achieved this end.
Unfortunately, at the same time it made the sidetone horribly clicky.
I don't recall the sidetone itself being clicky but I did notice that
when the S-meter was reading a signal level of S3 or higher there was a
higher propsensity for a click on the 2nd or 3rd dit (or dah) when
returning from sending a letter - it sounds similar to the AGC going
from 0 to meet whatever level necessary, and it would not act fast
enough. However, with #52 pulled (I actually just slid the plug over to
seat onto the connector with no wire attached to it) the performance is
great!
73 Jason N1SU
I
hated the clicks but a sidetone that increased with AF gain was fine with
me, so I figured out the plug 52 option and pulled the plug the day after I
got back from Dayton with my shiny new VI+ some years back.
FWIW
Bob, 5B4AGN
----- Original Message -----
From: "Steve N4LQ" <n4lq@iglou.com>
To: <tentec@contesting.com>
Sent: Saturday, August 21, 2004 10:30 PM
Subject: Re: [TenTec] Omni VI+ firmware rev.
Plug 52 is the well know cure for clicky QSK in your headphones. It's on
the
logic board and control board. Just unplug it. QSK will greatly improve.
No
one understands why it's there in the first place. Also, unplugging it
will
allow your AF gain to control the sidetone as it should.
Steve N4LQ
----- Original Message -----
From: "Jason Buchanan" <jsb@digistar.com>
To: <tentec@contesting.com>
Sent: Saturday, August 21, 2004 6:21 PM
Subject: Re: [TenTec] Omni VI+ firmware rev.
Paul Christensen wrote:
Note: All the above is with firmware ver. 1.03. I have no idea what
1.02
does but apparently it does key faster.
QSK with V1.02 is pretty damn fast as long as plug 52 is removed on the
IF/AF circuit board.
What's plug #52?
73 Jason N1SU
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