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Model Three - Operation Manual

A Δ Marker function can also be used to check the distance (in MHz)

and amplitude difference between any two points in the displayed

spectrum. First, use the

and keys to move the marker to a

reference position, then press the

(

MKR) key.

The

and keys now move the second marker from the

reference position, and the Δ Frequency and Δ Level are displayed.

Press the

(MARK) key to return to the normal single-marker

spectrum display.

Use the

(AUTO) key to automatically set a scale and reference

for the displayed spectrum graph. You may set the Scale and

Reference manually by pressing the

(DOWN) key and using the

and

keys for Scale and Reference as described for the

preceding Level display mode.

The spectrum display can also use an Average detector instead of

Peak detector by pressing the

(DOWN) key and using the

key to select AVG. This is most useful for digital channels to see a

quick scan of the average power for frequencies across the channel

bandwidth.

Trilithic Three - Page 51