Atec Tektronix-WFM90D-WFM91D - Manual (Page 2)

Handheld Waveform Monitors
WFM90D • WFM91D
As a waveform monitor, the WFM90D/
WFM91D provides all the features expected
on a basic, single-channel monitor: external
reference; 1H, 2H and 2F sweeps; X1, X5 and
variable vertical gain; flat and luminance filters.
The external reference input allows users to
perform the system timing adjustments critical
to sophisticated field productions. In addition
to these basic features, an alarm mode, where
the waveform’s color changes above 100 IRE
(WFM90D) or 700 mV (WFM91D), provides
quick feedback when video levels exceed
accepted standards.
The WFM90D/91D also reports presence/
absence of EDH packet, FF/AP CRC Errored
Seconds and Cable Length Margin Flag.
All display controls are selected through
simple, on-screen menus.
Whether adjusting a camera’s black/white
balance or adjusting chroma levels and hues
on a time base corrector, the WFM90D/
WFM91D Composite Vector Mode provides
the needed display controls. Variable, X1
and X5 gain settings and a 360 degree phase
shifter are selectable via on-screen menus,
as is 75% or 100% bars for the WFM90D.
The Analog Audio Mode’s voltage vs. time
display is useful for setting or checking levels
and for detecting certain types of distortions.
The audio display, driven via a single XLR
connector and a headphone jack, permits
listening to the displayed audio.
WFM90D/WFM91D monitors can be powered
with a NiMH battery pack or an AC adapter,
which also charges the NiMH battery pack.
A 12 volt cigarette lighter adapter may also
be used as a power source.
A rugged case with a shoulder strap makes
transporting WFM90D/WFM91D monitors
easy. Several options are available for the
WFM90D/WFM91D monitor, including a
viewing hood for operating in bright light and
a desk stand that simplifies benchtop use.
Waveform Monitors • www.tektronix.com/video_audio 2
Photo reprinted courtesy of Video System Magazine, Aug. ‘94.