Olympus EPOCH 600, Basic Operation Manual

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DMTA ‐ 10007 ‐ 01EN [U8778365], Rev. B, June 2010
36 Chapter 2
2.3 Gates
The EPOCH 600 features two standard, independent measurement gates: gate 1 and
gate 2. Gate 1 is displayed as a red, solid horizontal line. Gate 2 is displayed as a blue,
hollow horizontal line. These gates independently define digital measurements
regions for amplitude, time ‐ of ‐ flight measurements, and other specialized readings.
Each gate also features alarm and zoom functions.
2.3.1 Quickly Adjusting Basic Gate Parameters
The [GATES] direct ‐ access key allows instant access to gate start, width, and level
adjustments without requiring the user to enter any gate ‐ related menus. This is the
most common method for gate adjustments.
When the [GATES] key is pressed, the box above the first menu displays the gate 1
start position (see Figure 2 ‐ 10 on page 36). Once selected, the knob or arrows can
increase or decrease this value, in coarse or fine increments.
Figure 2 ‐ 10 The Gate 1 start position adjustment
Pressing the [GATES] key repeatedly will scroll through the start, width, and level
setting of every active gate. Pressing [ESCAPE] or [NEXT GROUP] returns the user
to the menu group used prior to gate adjustment, allowing efficient adjustment of the
gates with minimal interference for the operator.
For more comprehensive gate setup and adjustment, there are three menus that
manage gate settings: Gate1 , Gate2 , and Gate Setup .
2.3.2 Gate 1 and Gate 2
Both Gate 1 and Gate 2 menus allow access to specific gate positioning and alarm
functions. When either menu is selected, the following parameters become visible
above the [P <n> ] parameter keys.
Gate 1 start position adjustment