I have no nearby switching supplies. But I wonder if the power supply does
have something to do with it. I am using a transformer based Astron
AS-50A
regulated 50 amp supply, not the TT switcher. Checked with a scope, no
ripple. Wonder what others are using, is there a common thread?
-----Original Message-----
From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
On Behalf Of Bruce McLaughlin
Sent: Monday, March 09, 2009 3:04 PM
To: 'Ron Castro'; 'Discussion of Ten-Tec Equipment'
Subject: Re: [TenTec] NEW Orion II/2.041XL Bug? Red Scan With Vertical
LinePatterns
I get that one trace long red sweep on my Orion as well. It does not seem
to perform any useful function and I'm not sure why it is there.
Ordinarily
it last for only a brief period and then the normal like trace with the
red
peak traces returns.
However, the other day I inadvertently left on a switching power supply
which sits above the Orion's power supply and is normally used to power my
(excuse the expression) K-3. It is usually never left on but on that
particular occasion I forgot and did not turn it off. The display on the
Orion went sort of nuts. The Scope's background was red with regular,
vertical, black lines. The sweep was entirely red. It remained like that
until I switched off the other power supply and then everything returned
to
normal. I think the second power supply was generating RF hash which, I
presume, got into the 12 volt line for the Orion. I am sure this effect
is
confined to my particular system and I am not suggesting any wider
application but I did think it was rather peculiar. The sweep system
seems
rather sensitive to a number of outside influences.
Bruce-W8FU
-----Original Message-----
From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
On Behalf Of Ron Castro
Sent: Sunday, March 08, 2009 6:56 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] NEW Orion II/2.041XL Bug? Red Scan With vertical
line
patterns
Jim: That's exactly what I am seeing and what I believe has been
described
by others. The 'spectrum trace' red (which is a peak-hold trace) is all
you're supposed to see and is one of the improvements over the previous
versions.
Ron N6IE
www.N6IE.com
----- Original Message -----
From: "Jim M." <jmiller1706@cfl.rr.com>
To: "'Discussion of Ten-Tec Equipment'" <tentec@contesting.com>
Sent: Sunday, March 08, 2009 2:54 PM
Subject: Re: [TenTec] NEW Orion II/2.041XL Bug? Red Scan With Vertical
LinePatterns
The radio had been running on Rx for a few hours, 20 and 80 meters. The
80m
band was dead, mostly just local line noise.
I am now getting the normal white spectrum, but now behind it the entire
scan screen (up to the blue marker, is filled with red, first solid red,
then alternating red/black that starts at the top and walks downward,
then
solid red again. Occasionally the white spectrum trace will wipe itself
away from right to left. Is this what you folks are seeing, or is this
new?
By turning sweep off and on again it began working correctly.
Previously I had only seen this as a brief red spectrum trace (the white
trace disappears for a half second or so), and I thought this was what
you
were seeing. Just before this new phenomenon started, I was tuning and
happened to catch the spectrum in a "red only" trace...and it froze in
all
red color as long as I would turn the tuning knob.
I took some photos at: http://s685.photobucket.com/albums/vv219/N4BE/
Jim N4BE
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