Chapter 2 33
Front and Rear Panel Features
Rear-Panel Features
6 GPIB and parallel interface (Option A4H) is an optional interface. GPIB supports
remote analyzer operation. A parallel port is included for printing only.
7 RS-232 and parallel interface (Option 1AX) is an optional interface. RS-232
supports remote analyzer operation. A parallel port is included for printing only.
NOTE Printing is only supported from the parallel port.
8 IF, Video, and Sweep Ports (Option A4J or Option AYX): (Refer to the
specifications guide for more information.)
SWP OUT provides a voltage ramp corresponding to the sweep of the analyzer
(0 V to 10 V).
HI SWP IN (TTL) can be grounded to stop and reset the sweep. Once the sweep
has been stopped, removing the ground will trigger the start of a new sweep.
HI SWP OUT (TTL) is high when the analyzer is sweeping.
AUX VIDEO OUT provides detected video output (before the analog-to-digital
conversion) proportional to vertical deflection of the trace. Output is from 0 V to
1 V. Amplitude-correction factors are not applied to this signal.
NOTE The video output signal may be blanked during retrace when automatic alignment
is on. This effect can be reduced with longer sweep times, or eliminated by turning
Auto Align off. For more information, refer to the Alignments key description in
the ESA User’s and Programmers Reference, Volume 1.
AUX IF OUT is a 50 , 21.4 MHz IF output that is the down-converted signal of
the RF input of the analyzer. Amplitude-correction factors are not applied to this
signal. This output is taken after the resolution bandwidth filters and step gains
and before the log amplifier.
NOTE Only one IF and Sweep Port option (Option A4J or Option AYX) can be installed
at a time.
9 FM Demod (Option BAA) demodulates, displays, and measures deviation on FM
signals. You can listen to audio signals on a built-in speaker or with an earphone.
Refer to “Det/Demod” and “FM Demodulation (Option BAA)” in the Options
chapter for more information.
Bluetooth
FM Demodulation (Option 106) demodulates, displays and measures
deviation on Bluetooth
signals. Refer to “Det/Demod” and “Bluetooth FM
e. The Frequency Extension Assembly comes standard with the Agilent E4404B, E4405B and
E4407B.
f. Bluetooth
is a trademark owned by its proprietor and used by Agilent Technologies under
license.
g. Option 106 is required to make measurements in Bluetooth™ Measurement Personality
(Option 228)
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