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Model Two & Model Two Lite - Operation Manual
59
Press the
F3
key to change the function of softkeys
F1
and
F2
to Auto and
Δ
Mkr. To set the
reference level and the scale automatically, press
F1
(AUTO).
A
Δ
MARKER function can be used to check the distance (in MHz) and amplitude difference
between any 2 points in the displayed transmission spectrum. First, use the
UP
and
DOWN
arrow
keys
to move the marker to a reference position, then press
F2
(
Δ
MKR). The
UP
and
DOWN
arrow keys now move the second marker from the reference position, and the
Δ
Frequency and
Δ
Level are displayed.
Press
F2
(MARK) to return to the normal single-marker Transmission display.
The new Zero Reference Scan remains in the Model Two so you can measure the relative change
at a later time. To perform another Transmission Test at any time, confirm that Transmission is set
to ON and press
SPECT
. The Model Two performs a Spectrum Scan and compares it to the
reference data.
If Transmission has been turned off for absolute Spectrum Measurements, you can turn it on and
press
F2
(NO) when asked to replace the Zero Reference data.
The Model Two then prompts you to select
F1
to start a relative Spectrum Measurement with the
old Zero Reference data.