Chapter 5 71
Options and Accessories
Options
High Stability Frequency Reference (Option 1D5)
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.
IF, Sweep and Video Ports (Option A4J)
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 Ω, 21.4 MHz IF output that is the down-converted signal of the RF input
of the analyzer.
Low Emission (Option 060)
Option 060 provides reduced radiated and conducted emissions to comply with EN55011 Class B
requirements. This option applies during ac operation only. Option 060 is standard for analyzers with a
serial number greater than US41060000.
Low Frequency Extension (Option UKB)
Option UKB extends the frequency range of the analyzer on the low end to 100 Hz when DC coupling is
selected. This option is available on EMC models E7402A, E7403A, E7404A, and E7405A.
Narrow Resolution Bandwidth (Option 1DR)
This option provides additional narrow resolution bandwidths of 10 Hz, 30 Hz, 100 Hz, and 300 Hz and
200 Hz EMI. These bandwidths improve the analyzer sensitivity and allow you to resolve closely spaced
signals, as well as allow you to make CISPR Band A measurements.
Operating and Carrying Cases (Option AYT/AYU)
Options AYT and AYU are protective soft operating and carrying cases. Option AYT is made of gray
rip-stop nylon and Option AYU is made of yellow rip-stop nylon. An outside pocket holds manuals or
other accessories. A reinforced adjustable padded shoulder strap provides ergonomic distribution
between your hand and shoulder. The front and rear panel soft covers adjust to be compatible with the
front panel protective hard cover (Option UK9) and snap on battery pack (Agilent E1779B). Side
ventilation allows for operation without removal, but the maximum operating temperature is reduced to
45° C.
Pre-amplifier (Option 1DS)
The pre-amplifier improves the analyzer’s sensitivity (lowers the noise floor) by approximately 16 dB.
Pre-amplifier frequency range: the Agilent E7401A (100 kHz to 1.5 GHz), for the Agilent E7402A,
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