Trilithic Three

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Model Three - Operation Manual

A Δ MARKER function can be used to check the distance (in MHz) and

amplitude difference between any two points in the displayed transmission

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

Transmission display.

Press the

key to change the function of the

key to AVG to

enable an average level reading instead of a Peak Detector reading in the

spectrum scan.

The new Zero Reference scan remains in the Model Three 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 the

SPECT

6 PQR

key. The Model Three performs a Spectrum scan and

compares it to the reference data.

Trilithic Three - Page 75