Agilent Technologies E4404B - Page 75

Chapter 5 75
Options and Accessories
Options
AYX Fast Digitized Time Domain
Sweeps
Option AYX allows fast digitized sweep times as fast as 20 sec
in spans of 0 Hz. Refer to the
Sweep key description in your
User’s guide for information about possible sweep times. It also
provides the following additional inputs and outputs:
SWP OUT - sweep ramp output, provides a voltage ramp
proportional to the sweep of the analyzer (0 V to 10 V).
HI SWP OUT (TTL) - provides the HI SWP TTL signal as an
output (TTL high during a sweep, TTL low during a retrace).
It indicates when the analyzer is sweeping
HI SWP IN (TTL) - allows external sweep control. It can be
grounded to stop and reset the sweep.
AUX VIDEO OUT - provides detected video output (before
the analog-to-digital conversion) proportional to vertical
deflection of the trace.
AUX IF OUT - provides a 50 , 21.4 MHz IF output that is
the down-converted signal of the RF input of the analyzer.
For A.07.00 firmware revisions and later, either this option or
Option B7D (Digital Signal Processing and Fast ADC) is
required to perform the PowerStat Complementary Cumulative
Distribution Function (PowerStat CCDF) for all radio standards.
It is also required to perform the ACP measurement when the
NADC radio standard is selected.
1D5 High Stability Frequency
Reference
Option 1D5 improves the frequency reference accuracy. The
analyzer’s synthesizer is phase locked to an oven controlled
crystal oscillator (OCXO), instead of the standard VCXO. When
present with narrow resolution bandwidth (Option 1DR) it
provides 1 Hz and 10 Hz resolution bandwidths.
A4J IF, Sweep and Video Ports Option A4J provides the analyzer with additional inputs and
outputs. They are as follows: SWP OUT, HI SWP OUT (TTL),
HI SWP IN (TTL), AUX VIDEO OUT, and AUX IF OUT.
SWP OUT - sweep ramp output, provides a voltage ramp
proportional to the sweep of the analyzer (0 V to 10 V).
HI SWP OUT (TTL) - provides the HI SWP TTL signal as an
output (TTL high during a sweep, TTL low during a retrace). It
indicates when the analyzer is sweeping.
HI SWP IN (TTL) - allows external sweep control. It can be
grounded to stop sweeping.
AUX VIDEO OUT - provides detected video output (before the
analog-to-digital conversion) proportional to vertical deflection
of the trace.
AUX IF OUT - provides a 50 , 21.4 MHz IF output that is the
down-converted signal of the RF input of the analyzer.
Option
Number
Name Description