9
Band power marker (characteristics only)
Markers can be placed on any time, frequency, or demodulated trace for direct computation of band power, rms
square root (of power), C/N, and C/N
o
within the select-
ed portion of the data.
Peak/average statistics
Peak and peak-to-average statistics can be enabled on
main time, gate time, IQ measured time (Option 89410AAYA), IQ reference time (Option 89410A-AYA), and math
functions involving these trace types. Average power and
peak statistics are computed using all samples in the
active trace. Each successive trace adds additional samples to the calculations.
Displayed results average power
peak power
peak/average ratio
number of samples
Peak percent 90% – 99.99%.
Setting can be changed
at any time during or after
the measurement.
Signal characteristics
Peak power range +13 dB relative to average
power of the first-time record
Average power range ±3 dB relative to average
power of the first time record.
Display (characteristic only)
Trace formats One to four traces on one,
two, or four grids or a quad
display
Other displays On-line help text, view state
Number of colors User-definable palette
Display points/trace 401
User-definable trace titles and information
X-axis scaling Allows expanded views
of portions of the trace
information
Display blanking Data or full display
Graticule on/off
Center ±5 mm referenced to bezel
opening
Dimensions
Height 107 ±5 mm
Width 154 ±5 mm
Diagonal 187.2 mm (7.4 in)
Status indicators
Overload, half range, external trigger, source on/off,
trigger, pause, active trace, remote, talk, listen, SRQ.
External PC-style keyboard interface
Compatible with PC-style 101-key keyboard: male DIN5
to PSC type mini-DIN6 pin female adapter required for
some keyboards.
Interfaces (characteristics only)
Active probe power +15 Vdc, –13 Vdc; 150 mA
maximum, compatible with
Agilent active probes
Sync out Active low TTL level signal
synchronous with source
output of periodic chirps and
arbitrary blocks up to 8,192
samples.
External reference in/out
External reference input Locks to a 1, 2, 5, or 10 MHz
(±10 ppm) with a level
> 0 dBm
External reference output Output the same frequency
as the external reference
input at a level of > 0 dBm
into a 50 Ω load.
GPIB
Implementation of IEEE Std 488.1 and 488.2 SH1, AH1,
T6, TE0, L4, LE0, SR1, RL1, PP0, DC1, DT1, C1, C2, C3,
C12, E2
Benchmark characteristics (typical transfer rate of
401 frequency-point traces)
Scalar 25 traces/second
Vector 20 traces/second
RS-232 Serial port (9-pin) for
connection to printer
Centronics Parallel port for connection
to a printer
External monitor output
Format Analog plug-compatible
with 30.15 kHz multi-sync
monitors
Impedance 75 Ω
Level 0 to 0.7 V
Display rate 57.43 Hz
Horizontal refresh rate 30.15 kHz
Horizontal lines 400
General