Ceyear 4051 Series, Руководство пользователя

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5 Menu
5.2. Description of menu
373
● Menu description: to set gate delay time. And control the length of time from the time when the gate
signal is TRUE until the gate is turned on.
●
Key path: 【 Sweep 】 , [Gate ▶ ], [Gate Setup ▶ ], [Gate Delay] on the front panel.
●
Status saved: saved in the instrument status.
●
Factory preset: 1ms.
● Setting range: 0s-40s.
● Remote Command:
[:sense]:sweep:egate:delay <time>
[:sense]:sweep:egate:delay?
● Examples:
:SWE:EGAT:DEL 1ms
:SWE:EGAT:DEL?
[Gate
length
]
● Menu description: to set the gate length. And control the length of time that the gate is on after it opens.
● Key path:
【
Sweep
】
, [Gate
▶
], [Gate Setup
▶
], [Gate Length] on the front panel.
● Status saved: saved in the instrument status.
● Factory preset: 5ms.
● Setting range: 100us-5s
● Remote Command:
[:sense]:sweep:egate:length <time>
[:sense]:sweep:egate:length?
●
Examples:
:SWE:EGAT:length 5ms
:SWE:EGAT:length?
[Gate Method ▶ ]
Pop up soft More for selecting gate methods, including [LO], [Video], [FFT] items. Not all types of gating are
available for all measurements.
[LO]
●
Menu description: to set the gate method as LO.
LO is a smart way for gating. It only sweeps LO when Gate is ON and passes through signal. The Gate signal
controls when the sweep generator scans and when it passes through or shields signal. This enables that the
signal/spectrum analyzer only sweeps when Gate is ON, that means, the Gate LO only sweeps LO and passes
through signal when Gate is ON.
When set to Gate ON, the LO sweeps whenever the specified gate parameters are satisfied. This form of
gating is more sophisticated, and results in faster measurements. With Gated LO, the analyzer only sweeps
while the specified gate parameters are satisfied. This means that a sweep could take place over several gate
events. It would start when the gate signal goes TRUE and stop when it goes FALSE, then continue when it