•
The unit should immediately display the video carrier signal strength of current channel.
•
Press the arrow keys to move to the next or previous channel.
•
Direct channels may be entered by pressing appropriate number keys, then pressing
.
•
Direct single frequencies may be entered by pressing MHz button, followed by the
appropriate number keys
•
To select a direct frequency, press
until the cursor highlights a value and use the
to change the value.
•
To test the digital channel, using the arrow keys, move to a digital channel and press
to show channel setting window.
•
Using the arrow keys, highlight
“TYPE”
and press
. Using arrow keys change the
type to
“Digital”
and show options of digital channel. Enter correct parameters and
press
. Or you can directly quit by pressing
, the settings will be saved
automatically.
•
The channel number will become “CHD” instead of “CHV”. The channel power will show
on the screen. Press
, the display enter QAM analysis menu and show the results
of “MER”, “BER” as well as the graphics of constellations after pressing
.
•
The instrument will now display the video carrier strength of the selected channel on the
display. It is this carrier signal that is critical. Typical cable company requires this signal
be within ±5dB of 0, at the demarcation point outside the structure, as well as all cable
outlets within.
•
Note that signal strength of considerably lower than 55dBuV/-5dBmV may still provide
satisfactory reception, depending upon the quality and size of the connected television
receiver.