Model Two & Model Two Lite - Operation Manual
39
Single Channel Level Testing
When set to the single channel level test, the Model Two displays bar graphs of the video and
audio carriers as well as numeric readouts of the carrier amplitudes and V/A difference. The
Model Two can also display a spectrum scan of the selected channel showing the amplitudes of
the video and audio carriers and undesired signals that may be present, such as intermodulation.
To access the Level screen, press
LEVEL
.
The Model Two displays the Level screen for the last channel it was on before being turned off.
TV Channels
When measuring a TV type channel with audio and video carriers (see
Edit User Plan
on
Page 33), the left column of the bar graph represents the video carrier while the right column
displays the audio carrier. The V/A
Δ
is displayed below the video and audio carriers.
To change the channel, use the
UP
and
DOWN
arrow keys or press
FCN,
enter the desired
channel number, and press
F1
(ENTER).
The Level screen displays a scale that you can adjust by pressing
F3
(DOWN) so that the
functions of softkeys
F1
and
F2
become SCALE and REF. Press
F1
(SCALE) to vary the
graduation of the scale according to a 1, 2, 5, and 10 dB per division scale.
Channel
Channel Label
Video Carrier
Audio Carrier
V/A
Δ
F1
F2
F3
Channel Type
User Plan
