Interesting. Still, as I suspected, it's not possible
with what's on
the "outside". I wonder what exactly they did to make
On Wed, Jun 5, 2013 at 9:42 PM, John Rehwinkel <jrehwin@...>
>> Hi John, do you have the app note? I would be
interested since I use
>> raster mode in measurements. I have been
wondering whether there's a
>> way to do this at all. I guess maybe with a dual
>> but not sure how.
> Okay, my memory wasn't quite accurate, there isn't a
specific app note, but apparently Field Offices could
obtain information on retrace blanking when raster
scanning using a sweep plug-in in a vertical compartment.
> From the 7603 manual (under "Raster Display"):
> For this type of display, the trace is deflected both
vertically and horizontally by sawtooth signals. This is
accomplished in the 7603 by installing a 7B-series
time-base unit in one of the vertical plug-in
> Another method of displaying information on the
raster is to use the EXT Z AXIS input to provide intensity
modulation of the display. This type of raster display
could be used to provide a television-type display.
Complete information on operation using the Z-axis feature
is given under Intensity Modulation.
> To provide a stable raster display, both time-base
units must be correctly triggered. Internal triggering is
not provided for the time-base units when they are in the
vertical compartments; external triggering must be used.
Also, blanking is not provided from the time-base units
when they are installed in a vertical compartment. To
blank out the retrace portion from the time-base unit in
the vertical compartment, special connections must be made
from this time-base unit to the blanking network of the
> If this mode of operation is desirable, contact your
local TEKTRONIX Field Office or representative for
specific information on obtaining blanking with the
specific time-base unit being used in the vertical
> - John
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