Introduction to New Features
of the
HP
851OC
(Revisions
Revision
6.XX
6.30 and Greater)
HEWLETT
@ii
HP Part No. 08510-90276
Printed in USA August 1992
PACKARD
Edition 3
@Copyright Hewlett-Packard Co., 1400 Fountaingrove Pkwy., Santa Rosa, CA
U.S.A.
95403-1799
Contents
Introduction to this Document
Turn Power On
Initial Setup
Select Channel
Display Modes
Four Parameter Displays
Dual Channel Display
Coupled and Uncoupled Channels
Alternate Sweep
Measurement Markers
Ramp and Step Sweep Modes
Channel/Domain/Parameter/Format/Response Memory
Parameter-Dependent Trace Memory
Parameter-Dependent Trace Math
Date/Time Display
Hardcopy Measurement Results
Using an Internal or External Disc
Define Non-Standard Display Colors
Test Port Power Flatness
Frequency List
Change Cal Type
Cal Kit Definitions
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Introduction to this Document
This is a quick introduction to new features of the revision 6.30 or greater firmware, first
appearing in the HP 8510C. The presentation consists of keystroke sequences to execute the
feature with explanation of the result and its impact on the measurement process. A working
knowledge of the HP 8510 and basic familiarity with front panel operation is assumed, so only
new features are explained. Demonstration sequences assume that you are using an HP
(color display) executing firmware revision
C.06.30
or higher.
851OC
Turn Power On
There are now two line power switches. First turn on all other system instruments, then
switch the LINE rocker switch on the bottom box to ON, then press the latching pushbutton
LINE switch on the top box to ON. The self-test sequence will execute, the HP 8510 issues a
device preset to instruments on the HP 8510 System Bus, then HP 8510 internal user-defined
Instrument State 8 is recalled.
Since the previous user may have stored a personal favorite instrument state in register 8, the
network analyzer may “wake up” making any possible measurement. In order to start this
demonstration at a known state, let’s first do an initial set up.
1
Initial Setup
These steps simply set the HP 8510 to a known state in preparation for the following
demonstrations. Because the previous user may have changed the predefined color
assignments, press:
This sets the color assigned to each (DISPLAY) element to the factory-defined value.
Connect
(RECALL) @DE@
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Recalls factory-defined state.
all
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Now we are certain about the contents of Instrument State 8.
(USER
PRESET)
Green key on bottom box.
The function of this key changes in the 6.0 firmware. Pressing this key recalls instrument
State 8 but does not initialize system bus instruments. This sets the HP 8510 to a known
state without disturbing devices connected to the system bus. Since instrument state 8 is
defined by the user, it provides a convenient means to return the system to a state that you
prefer.
Functions the same as
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2
and probably accompli&es
(green key). This simple recall is faster than
the same purpose. You can save any Instrument
State at any time in any of the 8 Instrument State memories. All eight instrument states are
preserved in non-volatile memory,
The following steps guide a simple set of Response calibrations used later to show operating
features of the
HP 8510. As an alternative, perform a Pull 2-Port or TRL 2-Port calibration.
2
--,
Connect Short at Port 1
Connect Thru
(SZl]
fLOG MAGI
Start $1 calibration.
(or any appropriate cal kit)
Correction Turns On, C appears.
Start $1 calibration.
s12
0
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Connect Short at Port 2
s22
0
(or any appropriate
Correction
Start $2
Turn43
Cal.
cal
kit)
On, C appears.
(or any appropriate cal kit).
Correction Turns On, C appears.
Start $2
Cal.
[CAL]
(or any appropriate cal kit).
Correction Turns On, C appears.
3
Switch parameters
Now we have:
$1
cal set 1,
$1
cal set 2,
$2
cal set 3, and
$2
cal set 4.
CORRECTION ON label shows Cal Set.
Select Channel
The HP 8510 uses two identical, independent data acquisition and processing channels.
~CHANNEL i 1
Switch
Switch Parameter
Channel
Each channel can acquire, process, and display data for either one parameter, or four
parameters. Any parameter can be measured on either channel. If the channels are Coupled,
then the data processing and display program can share data between the channels; if the
channels are Uncoupled, then each channel acquires and processes data separately.
4
Display Modes
The HP
Overlay.
menu structure differs from the HP 8510B because the HP 8510B cannot produce the Four
Parameter display.
on the
851OC
provides two new DISPLAY modes, Four Parameter Split and Four Parameter
Each
Channel can now measure and display either one or four parameters. The
Switch Channel
Switch
Parameter
selects Single Parameter, in which the display shows the current parameter
selectedchannel.
Four Parameter Displays
The Four Parameter Overlay and Split Displays show all four basic parameters of the selected
channel.
(DISQLAY)
This selects the four parameter display on the current channel. In this split display, the
parameters are plotted in the same relative position as the PARAMETER keys.
Select Each Parameter
Note the Selected Parameter indicator which is an arrow-type annotation near the parameter
label. Press a Parameter key, then select and change its Format and Response settings.
(CAL)
Select Each Parameter
All four basic parameters are plotted in an overlay format. Press a Parameter key, then select
and change its Format
bd
Response settings.
CORRECTION ON label shows Cal Set.
5
Dual Channel Display
The Dual Channel Overlay and Split displays are unchanged except for the menu labels.
The Dual Channel Split and Dual Channel Overlay display modes show the selected
measurement of a single parameter on both channels. To change the display of a channel,
first select
that channel. When Coupled Channels is selected, the Stimulus characteristics (Sweep
Mode, Source Power, Number of Points, etc.) are always the same for both channels, but
almost all other functions (Parameter/Format/Response and Display and Domain) can be set
independently for each channel.
(-1)
(CHANNEL)
or
(-2)
then use the controls to set up the measurement for
(CAL)
Switch Channels
Switch Parameters
(CHANNEL 1 I
(s21)
(-2)
CORRECTION ON label shows Cal Set.
Notice Test Set forward/reverse indicators.
Channel 1 displays the Frequency Domain response; Channel 2 displays the Time Low Pass
Domain response. Either channel can independently display either the Frequency or the Time
Domain.
Coupled and Uncoupled Channels
When Coupled Channels is selected, turning on a
parameter on both channels. By selecting Uncoupled Channels you can, for instance, apply
a different
mode. This
2-Port cal set to each channel. Uncoupled Channels can be used in any display
allows
many of the Stimulus functions, including frequency range and cal set
assignments, to be set independently for each channel. Only certain of the Stimulus functions
are always coupled (Sweep Mode and Number of Points).
cal
set applies the correction to that
6
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