Atec Anritsu-MA2445A - Manual (Page 5)

5
ML2430A Series ML2480A Series ML2490A Series Comments
ML2437A ML2438A ML2487A ML2488A ML2495A ML2496A
Averaging
Auto (Moving), Manual (Moving, Repeat) Type
1 to 512 Range
Low, Medium and High settings apply
post average low pass filter to improve
visibility at high display resolution
N/A Low-level Averaging
Triggering
Internal, External (TTL or RF Blanking),
GPIB, Manual, Continuous
Internal, External (TTL), GPIB,
Continuous, External Bus
Continuous (not in Random
Repetitive Sampling mode) Internal,
External TTL (Rising or falling Edge),
GPIB or external Bus
Source
Manual
Single power value set to cover entire measurement dynamic range of sensor
Auto
Automatically sets trigger level for signal over measurement dynamic range
Trigger modes
N/A
Variable-auto set and manual
20 MHz, 2 MHz, 200 kHz, 20 kHz
Nominal Internal Trigger
Bandwidth
Sets the trigger arming, unless the trigger
source is set to EXTTTL
When ARMING is set to Blanking ON, only
samples taken when the rear panel Digital
Input BNC is active will be averaged in the
measurement
Continuous Sampling Modes:
Single
Automatic
Frame for QAM and multi-pulse
Repetitive Sampling Modes:
Automatic
Frame for QAM and multi-pulse
Continuous Sampling Modes:
Single
Automatic
Frame for QAM and multi-pulse
Arming Sources
N/A 0 to 64 x trigger capture time range or 120s whichever is the greater
Frame Arming
Time range
–15 to 20 dBm (all diode sensors,
selectable to –25 dBm)
–15 to 20 dBm
–28 dBm to +10 dBm with MA2472D
CW mode
–18 dBm to +14 dBm with MA2491A
–30 dBm to +10 dBm with MA2472D
Pulse/Modulated mode
Internal Trigger dynamic
range
1 dB
Internal Trigger level
Accuracy (typical)
0.1 dB
Internal Trigger
settable resolution
N/A
±16 ns or display resolution
whichever is the larger
(Trigger Capture time 3.2 µs to 7s)
±2 ns or display resolution,
whichever is the larger
(Trigger Capture time 50 ns to 3.2 µs)
±16 ns or display resolution
whichever is the larger
(Trigger Capture time 3.2 µs to 7s)
Trigger time resolution
Uncertainty
0.0 to 999 ms
0.0 to 999 ms
Dependent on trigger capture time
Pulse modulated mode
Pretrigger (-ve): 95% of the
Trigger Capture range
Post Trigger: Set by 256K buffer
and sample rate
CW mode
Post Trigger Only: 0-999 ms depending
on Trigger Capture period setting
Trigger delay range
TTL rising or falling edge (BNC input) External Trigger range
N/A 90% of trigger capture range Pre-trigger range
0.5% of display period or 100 ns 0.5% of display period or 16 ns
200 display points
1 ns or 0.5% of trigger capture time,
whichever is the larger
400 display points
1 ns or 0.25% of trigger capture time
(400 points), whichever is the larger
Trigger delay settable
resolution
Power Meter Specifications continued