HP 8510 User Manual

Either the internal logic, the TTL Trigger Input, or the HP-IB Group Execute Trigger from
an external controller can initiate a measurement cycle. When control of the pulse rep etition
perio d and duty cycle is required, the HP 8510 can use the trigger input to synchronize with
the internal or an external pulse mo dulator. The HP 8510 Stop Sweep output can be used as
a gating signal to tell when the analyzer is ready for the next measurement. The measurement
is made with 100 nanosecond resolution and about 200 picosecond uncertainty with resp ect to
the internally- or externally-generated measurement trigger.
Test Set Signal Flow
Figure 2-2 shows a detailed diagram of the HP 85110-series test set signal separation, signal
routing, and frequency conversion. This is a fundamentally mixed test set, providing four 20
MHz outputs to the network analyzer. Placement of a 0 to 90 db (10 dB/step) attenuator
before each mixer provides control of the signal levels into the mixers while allowing op eration
at high PORT 1 and PORT 2 signal levels necessary in many pulsed-RF applications.
The test set has rear panel access links to allow integration of additional test and signal
conditioning equipment in the low-loss main signal paths to the test p orts. If your device
exhibits more than ab out 20 dB of gain, or higher port signal levels are required, refer to the
High
P
o
w
er
Measuremen
ts
chapter.
Hewlett-P
ac
k
ard
harmonic
mixing
test
sets
are
designed to
work
with the
normal 10
kHz
IF
and
detectors.
These
include
the HP
8514, 8515,
and
8516
coaxial
test
sets;
and
the
HP
85104
millimeter
w
a
v
eguide
test
set.
This
HP
85110
fundamen
tal
mixing
test
set
is
designed
to
w
ork
with
the
wideband
IF
and
detectors.
There
are
applications
in
whic
h
the
HP
85110
can
b
e
used
with
normal
IF
and
detectors.
The
HP
85104
millimeter
test sets
can
b
e
congured
to
op
erate
with
the wideband
IF
and
p
erform
the
pulse
measuremen
t
functions
describ
ed
here.
All
HP
coaxial
test
sets
can b
e
equipp
ed
to
include
Option
001,
IF
Switc
hing
for
Multiple
Test
Sets,
so
a
system
can
b
e
equipp
ed
for
a
wide
range
of
applications
b
y
including
up
to
four
coaxial
test
sets
and
a
millimeter-w
a
v
e
test
set.
System
Description
2-3

HP 8510 Specifications

General

Dynamic Range	>100 dB
Number of Channels	2
Display	CRT
Resolution Bandwidth (RBW)	1 Hz to 3 MHz
Device Type	Network Analyzer
Interface	GPIB