2
Introduction
In the manufacturing industry,
time is priceless especially when
we are looking at a high volume
manufacturing. In such industries, fast
measurement speed is essential to
maximize the overall throughput. This
way, productivity can eventually be
increased.
Let us take a look at the following
example: A test engineer would like
to optimize the measurements’ speed
to increase the overall production
throughput, and a design and
validation engineer found a problem
in the prototype and needs to run
a few rounds of regression tests
to troubleshoot the root cause in
order to implement a permanent
fi x. By increasing the speed of
measurements, it can help both
engineers to shorten the design cycle
and accelerate the product time-to-
market.
With the new enhanced P-Series
power meters N1911/12A with
fi rmware version A.04.01, you can
now enjoy its time-saving feature
that allows you to speed up the
measurement or calibration using the
external triggering capability provided
for average power measurement. With
this new feature, you can perform
automatic power sweeps or frequency
sweeps with a signal source
synchronization through a hardware
trigger. This feature is only applicable
when used with any of the 8480
1
Series, E4410 Series, E9300 Series or
E9320 Series power sensors.
External Triggering in CW
Mode
An external trigger in Continuous
Wave (CW) mode is included in the
P-Series power meter, providing a
measurement automation between
the power meter and the RF source or
signal generator.
This feature allows the user to trigger
the power meter via an external TTL
signal for measurement capture with a
user-defi ned buffer size not exceeding
2048 measurement points.
In addition, users can choose
to enable the TTL trigger output
function and use it as a handshaking
mechanism with other instruments,
such as a signal generator. The
external trigger output will only
be asserted after a measurement
averaging and digital IR fi lter are
settled. Otherwise, it will be asserted
immediately after a measurement is
taken. To check on the measurement
progress, you may use the existing
STATus:OPERation:MEASuring
summary feature.
If the Operation Complete (*OPC)
function is enabled before performing
the buffering operation, the Operation
Complete bit (OPC) in the standard
Event Status Register (ESR) will be
set when the user-defi ned buffer is
completely fi lled. The ESR is then
polled programmatically through SCPI
for the buffer fi ll status. This upgrade
features a frequency sweep capability
similar to the Agilent E4400 Series
vector signal generator. The average
sensors that can be used with this
enhanced feature are 8480 Series,
E4410 Series, E9300 Series and E9320
Series (Average mode only)
power sensors.
Optimized for
Aerospace and defense: radar and pulse component tests
Wireless communication: base station component and MCPA tests
Wireless networking: design and manufacturing of network devices
Broadband communications include WiMAX base station and devices test
Figure 1. Hardware Connection for External Triggering in CW Mode
(Optional connection)
TRIG
IN
TRIG
IN
TRIG
OUT
TRIG
OUT
RF source
Power meter
Average power sensor
1. For 8480 Series power sensors, only power sweep is enabled.
(296 strony)
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