HP 8756A Operation Manual

Errata

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8756A

OPERATION

MANUAL

SCALAR

This

manual

Scalar

2317A.

For
refer to
in Section I.

Network

additional

INSTRUMENTS

NETWORK

applies directly to

SERIAL

Analyzer

information

NUMBERS

having

ANALYZER

HP

serial

about

COVERED

Model

number

serial

BY

8756A

prefix

numbers,

MANUAL

©

Copyright

1400

FOUNTAIN

MANUAL

PART NO.

08756-90013

HEWLETT-PACKARD

GROVE PARKWAY,

COMPANY

SANTA

ROSA,

CA

95404

Ff/;'1

a:~

1983

U.S.A.

Printed:

AUGUST

1983

HEWLETT

PACKARD

INTRODUCTION

This
Service
It
preparation
both
with

The
make

(HP-IB)

individual

In
operate
understanding
operator

is

Following
Note(s)
specific
Network

the
operation

Operation

Manual

contains

manual

the

8756A.

convenience

it

well

test

Manual

as

a

1escriotion

for

use,

and

automatic

and
suited
eauioment

needs.

OPERATING INFORMATION

the

8756A

of

errors,

not

already

the

and

hiahly

OPERATING INFORMATION,

Programming

apPlication

Analyzer

8756A.

A

Programminq

(using

a

reference

accuracy
for

in
this
and

and
an

external

is

suPplied

of

as

well

test

a

variety

applications,

you

either

section

should

skilled

Notes.

(Basic

8350B

Sweep

Note,

document

the

instrument,

as

information

applications,

of

the

of

will

the

find

local

will

be

the

in

the

An

OPerating

Network

Oscillator)

on

controller).

with

the
for

8756A

bench
which

the

or

remote

help

first

to

stop

operation
you

will

Measurements

the

other

8756A
the

on

Scalar

top

may

information

eliminate

Note

hand,

Operating

Instrument

specifi~ations,

using

and

the

shoul~

Network

and

automatic

be

tailored

needed

mode.

for

of

find

A

a

multitude

the

operator

the

8756A.

Operatinq

illustrates

of

Usina

locallv

8756A

apPlies

and

Operator.

and

8756A

be

kept

Analyzer

to

your

to

thorough

a
Scalar

operating

to

remote

in

of

who

Under
on
specific
8756A's

Programming

teaching

controller.

remote

illustrated.

It

is

a

condensed
characteristics.
the

Quick

HP-IB

Reference

operating

you

how

capabilities,

The

information

Notes,

to

remotelv

It

Quick

Reference

descriPtion

Once

you

Guide

the

is

Introductorv

meant

HP-IB,

of

are

familiar

will

provide

without

program

to

be

and

Guide

the

8756A's

explanations.

Operating

your

an

introduction

use

is

controller

with
a

summarv

Guide

instrument

of

the

controller

HP-IB

oPerating

proaramming

of

all

focuses

with

to

a

the

independent.

the

8756A,

of

the

INTRODUCTION

CONTENTS

GENERAL

INFORMATION

Introduction
Soecifications
Safety

Considerations
Instruments
Description
Options

. . . . . . . • . .

Accessories
Equipment

Equipment

Reauired
Available

Hewlett-Packard

8756

System

Covered

Supplied

Interface

•.

....

Interface

INSTALLATION

Introduction

Initial
Preparation
Storage

Inspection
and

• . .

for

Use

Shipment

OPERATION . • . . •

OPERATING INFORMATION

Introduction
Operating
Operating
Operator's
Error
Front
Soft
Rear
HP-IB
CRT
HP
HP
Front

Messages

Panel
Key
Panel

Ooeratinq

Graphics
8756!\.
8756A

Panel
Operator's
Soft

Kev

Characteristics

Instructions

Operating

Modified
Status

Menu Map . . . . . . • .

. . . .

Checks

. . . . .

Operating

Operating

Features

. • . . . . . . • . . . . . • .

ASCII

Byte

Kev

Codes

Check

by

Manual

• . .

.•.

but

not

snoplied

. . . . • . . . . . . .

Bus

(HP-IB)

. . • . . .

. . . . . . • • . . . • . . . . .

..•...

Features

•............

Features

Features

. . .

Character

DescriPtions

Set

..•

. . . . . . . . . . • . .

..•...

l-1
1-1
l-1
1-2
1-2
1-2

1-3

l-4

1-4

l-4

1-~

l-5

/.-1

2-1

2-l

2-l

2-8

3-i

3-1

3-l

3-l

3-2

3-2
3-2
3-3

3-14
3-24

3-26

3-44

3-45

3-4n

3-4~

3-4n

3-53

OPERATING
PROGRAMMING

NOTES

NOTES

Model8756A

Installation

SECTION II

INSTALLATION

2-1.

2-2.
tions
Analyzer
includes information
damage
ment, packaging, storage,

2-3.

2-4.

damage.
material is
contents
completeness
checked mechanically
tents
Figure
performance are given in
instrument
mance
V

INTRODUCTION

This

section provides installation instruc-

for

the

Model

and

its accessories.

8756A

about

claims,

INITIAL INSPECTION

Inspect

If

of

preparation

the

the

shipping

damaged

the

shipment

and

shipping

container

it

should

the

instrument

and

of

the

shipment

1-1.

Procedures for checking electrical

does

not

should

pass the electrical perfor-

tests, refer to the adjustments

of

this manual.

If

a circuit

Scalar

This

Network

section also

initial inspection,

for using the instru-

and

shipment

container

or

cushioning

be kept until the

have

been

checked for

has

electrically.

be

Section

The

as shown

IV.

in

Section

malfunction

been

If

is sus­pected, refer to troubleshooting information
Section VIII.
above electrical tests,
are

incomplete,
damage
Packard
damaged,
signs

of
Hewlett-Packard
materials for carrier's inspection.

will arrange for

waiting for claim

2-5.

PREPARATION FOR USE

If

the

instrument

or

if

or

if

or

defect, notify the nearest Hewlett-

office.

or

If

the

cushioning

the

does

the

shipment

there

is

shipping

material shows

not

pass the

contents

mechanical

container

stress, notify the carrier as well as the

office.

repair

Keep

or

replacement without

the

The

shipping

HP

office

settlement

for

con-

in

the

in

is

2-8.

2-9.
tion
Module
the line voltage

a.

b. Refer to Figure

Line

Voltage

Figure

card

and

on

the

Measure

panel
voltage

power line module, select the line

(100,

2-1

the ac line voltage.

and Fuse

illustrates the line voltage selec-

fuse location

rear

panel

and

fuse as follows:

2-1.

120,

220,

in

of

At

the

or

240 volts) closest to

the voltage you measured

Selection

the Power Line

the

87

56A

instrument

in

step

the available line voltage must be within

or

+5%

-10%
as shown in Table
use

an

autotransformer

Voltage

105

volts

126

231

and

2-1.

volts

volts

source

Table

Measured

ac

Line

90 to

108

to

198

to

216 to 252 volts

of

the line voltage selection

2-1.

If

it is not, you

between the power

the

87

56

A

Line Voltage/Fuse Selection

PC

Selector

Board

Position

100

120

220

240

HP

Part

2110-0002

2110-0002

2110-0043

2110-0043

a.

Fuse/

Number

2.0A

2.0A

1.5A

1.5A

Select

rear

Note

must

2-6

Power

2-7

The
Analyzer
220,

or
single-phase. Power
imately

Requirements

Mode

I 8756A

Seal

requires a power source

240 Vac, +5% to

-10%,

consumption

100

volt-amps.

a r

Network

of

100,

50

to 60 Hz,

is approx-

120,

c.

Make
the fuse holder.
each line voltage
and

below the power line

rear

panel

sure the correct fuse is installed

The

required fuse rating for

is

indicated in Table

of

the 8756A

module

on

in

2-1
the

2-1

Installation

Model8756A

RECEPTACLE

PC

SELECTOR

FOR

115/120

OPERATING

FOR

BOARD

VAC

PRIMARY

SHOWN

POWER

VOLTAGE

LINE.

POWER

CORD

POSITIONED

APPEARS

\

IN

MODULE

Figure 2-1.

WINDOW.

Power

Line

Module

SELECTION

1.

SLIDE
AND

REMOVE

2.

PULL
POSITION
NEAREST

WILL

BOARD

3.

PUSH
RIGHT-HAND

4.

CHECK
RECT
LINE
FERENT

BELOW

5.

INSERT

OF

OPERATING

OPEN

POWER

PULL

FUSE-PULL

FUSE.

OUT

VOLTAGE-SELECTOR
PC

BOARD

ACTUAL

APPEAR

IN

LINE

MODULE

INTO

LEVER
POSITION.
TO

MAKE

AND

FUSE

VOLTAGES
MODULE.

BACK

FUSE-PULL

FUSE

RATING

VOLTAGE.

POWER

CORRECT

MODULE

LEVER

SO

LINE

ITS

SLOT.

SURE

TYPE

RATINGS

FUSE

VOLTAGE

COVER

TO

PC

THAT

VOLTAGE

VOLTAGE

WINDOW.

INTO

ITS

IT

IS

FOR

INPUT

ARE

INDICATED

IN

FUSEHOLDER.

DOOR

LEFT

BOARD.

LEVEL

PUSH

NORMAL

OF

COR-

AC

FOR

DIF-

TO

To

prevent

ment,

make

damage

the

correct

to

the

line
and fuse selection before connect­ing

line

power

to

the

instrument.

NOTE

The

8756A

tory

installed fuses

operator

contains internal fac-

which

serviceable

or

able.

2-10.

2-11.
standards,
three-wire
approptiate
the
styles
plied
bers for

POWER CABLE

In

accordance

this

instrument

power

power

instrument

of

plugs available

with

HP

instruments.

the

plugs

with

international
is

cable.

When

line outlet. this

cabinet

Table

on

The

are

part

equipped

connected

power

numbers

instru-

voltage

are

not

replace-

safety

with a

cable

grounds

2-2 shows

cables sup-

HP

Part

Num-

for

to

an

the

the

complete
plug
the

power

shipped

country

Before
ment,

with

of

switching

be
specified
instrument
three-wire
grounds
This

power
inserted in a
with a protective
This

protective

be

negated
sion cord
protective
Grounding
conductor
protection.

cables.

The

the

instrument

type

of

destination.

WARNING

sure

power

is

power

the

instrument

cable is used.
provided

on

that

cord

I

this

only

cord should only be

socket

outlet

earth

action should

by

the

use

of

an exten-

(power

conductor
one
outlet

cable)

conductor

is

not

without

(ground).

sufficient

power

depends

instru-

the
The

with

which

cabinet.

provided

contact.

not

of a two-

cable/

upon

a

a

2-2

Mode18756A

Table

2-2.

AC

Power Cables Available

Installation

Type

250V

1

Plug

~

250V

Sl20-1369

s 120-069()

u

250V

@

125V

t91

SI20-16R9
Xl20-lf>92

RI20-134S
R 120-139S

s 120-1 7 54

S 120-137S
Sl20-1521
Xl20-1676

Cable

HP

Part

Number

Rl20-1351
Sl20-1703

3

co

2

0
6

()

4

7

2

5
5
7

I

6

2

Plug

Straight

90°

Straight

90°

Straight

90°

Straight
90°
Straight
Straight
90°
Straight

Description

BSI363A

NZSSI9R/ASCII2

CEE7-VJJ

NEMA5-15P

NEMA5-15P
NEMA5-15

NEMA5-15P

2

P

Length

(inches)

90
90

79
S7

79
79

so
xo

36
RO

so

36

Cable

Cable

Color

Mint
Mint

Gray
Gray

Mint
Mint

Black
Black

Black
Jade
Jade
Jade

Gray
Gray

Gray
Gray

Gray
Gray
Gray

For

Use

United

Zealand

and

(unpolarized

lOOV

Kingdom.

Nigeria.

Arabia.

nations)

States.

or

Cyprus.
Zimbabwe.

Australia.

New

East

Saudi

Republic
India
many

United
Canada.
(
Mexico.
Taiwan

in

Country

Singapore

West

Europe.

Egypt.

of

So.

Africa.

Japan

200V).

Philippines.

in

250V

~

E

250V

@

220V

EJ

250V

I

I·=

Ltrth

~

P.trt

nllmhcr

incllldin!,!

'

ThL'

Chcc

he·

k

'llpplicd

s 120-2104

S I 20-06lJX

Xl20-1957

s 120-29:'i6

X 120-1

Cirollnd:

,Jwv.n

plut!

[)igi

t ( C

v.ilh

X60

I.=

Line:

lin

pill!,!

l))

i"

a coded digit that

the

liP

P.trt

3

()

:\I=

i'

indll\tr\

:--.:umhcr

Straight

24507.

Straight

Straight

900

Straight

(System

1\:clltral

idcntilicr

rcrrc-..cnh

v.hcn

SEVIOII

Type

12

NEMA6-15P

DHCK

CEE22-VI
Cabinet

for

pill!,!

the

<)rdcring

107

lise)

"PLL'i

.ttl\

195l)

on!\

ufthc

Nurnhcr

fiL·

con1

hi

puv.cr

'hown

nation

.t"ctnhlic,

7l)

79
79

for

of n urn

cahlc

her-.,

Ji,tcd

(iray

Gray
Gray

i'

H P

u~cd

.thmc.

Switzerland

United

Denmark

Part

Nllrnhcr

in

the H P Part N

to

expedite

States.

lin

complete

un1

'peeL!\

her.

Canada

It

~hou

deli\

cahlc

ld

cry.

2-3

Installation

2-12.

tor

is

offset

the

grounding

pin

of

pin.

the

The

8756A from a two-contact

grounding

feature

may

be

three-prong to two-prong

tors only,

necting

HP

the

Part

green

Number

wire

ground.

three-prong
When
outlet,

the

connec-

operating

protective

preserved by using a

adapter

of

(USA connec-

1251-0048)

the

adapter

and

con-

Model8756A

the

to

2-13.

2-14.
control with
bus
The
and
on
may

HP-IB Address Selection

When

refers to

8756A is preset

the 8756A is used

the

HP-

IB, the controller

the

8756A by

in

firmware to address

is differentiated from

the

bus

by this address.

be

modified

by a front

an

any

The

under

HP-IB

other

HP-IB

panel

remote
on

the

"address".

16,

instrument

address

SHIFT

function.

2-15. Twenty-nine different address codes are

29).

The

available (I to

8756A is
the factory preset to address
8756A instruments,
read

by the processor from firmware
tial power
remain
resetting

[LOCAL] function.

on

in effect until the address is

through

read directly from

[SHIFn

is

then
address
played,
to

terminate
show

[LOCAL].

displayed

must

enter

the

new

be

the

the entry.

not affected by
by a

PRESET

the

only. This

the

The

the

The

on

the

changed

new

address

The

HP-

IB address.

turning

command.

HP-IB

front

HP-IB

front

current

from

the

HP-IB

CRT.

display

LINE

shipped

16.

In

all

standard

address will be

upon

address will

changed

panel

address

panel

[SHIFn

may

by pressing

HP-IB address

If

the

that

which

and

press

should

This

address is

switch off,

from

ini-

by
be

HP-IB

is

dis-

[ENn

now

2-16. HP-IB address labels are available by

ordering

(See

reference to the HP-IB address

HP

Figure

Part

2-2).

Number
These

7120-6853 (each).

labels

allow

of

each system

easy

component.

2-17.

2-18. All
of
each
tion, the
and
the
the externally
refer to Section

Mating

Connectors

of

the externally

the 8756A are listed in

8756A

the

mating

connector

part

part

number

connector.

number

of

mounted

VI.

Replacable

is

an

of a mating

an

For

connectors themselves.

mounted
Table

connectors

2-3.

Opposite

industry identifica-

connector.

alternate source for

HP

part

numbers

Parts.

of

or

Figure

2-19.

Interface Connectors and Cables

2-20.

HP Interface Bus and

The
tor is located
A10J2 allows the 8756A to

controller via
instruments.
and

signals

is given

2-21.

located

The

on

allows the 8756A to

or

8340A swept microwave sources,

7470A

or
controls the 8756 System Interface,

be

must

connector
2-22. All

or

the 8756 System Interface Bus are intercon-

nected by

available HP-IB Cables
is

given
instruments may be
HP

Interface Bus
To achieve design
per

voltage levels
be maintained.
if

the

accumulated

instruments

cannot

lines

2-2.

HP-IB Address Label

HP

Interface Bus Interface

on

the

rear

panel

in

Figure

An

on

HP-IB, with

illustration

the

HP

2-3.

or

of

Interface Bus

8756 System Interface

the rear

panel

be

connected

of

9872C digital plotters.

no

other

controllers

(see Figure 2-3).

instruments

HP-

IB Interface Cables. A list

on

the

and

in

Figure

2-4.

connected

or

the 8756 System Interface.

performance

and

timing relationships

If

the system cable is too long

cable

is

too long, the

be driven properly

8756

System

Connec-

of

the 8756A.

be

connected

without

pin

configuration

additional

to a

connector

Connector

the 8756A. A10Jl

to the 8350B

and/

or

The

8756A itself

and

there

attached

HP

Interface Bus

to this

of

their

part

numbers

As

many

in

parallel

on

the bus, pro-

as
on

must

length

data

and

between

and

control

the system

is

the

the

15

the

or

may fail to perform. Therefore. the following

must

restrictions
a.

With two instruments in a system, the cable
length must

be observed:

not

exceed 4 metres (12 feet).

2-4

Model8756A

Installation

GROUNDED

TERMINATION

OTHER

TWISTED

NEAR

WIRE

PAIR

OF
OF

P/0

TWISTED

P/0

TWISTED
P/0
P/0

P/0
P/0

8756

SIGNAL

TWISTED
TWISTED
TWISTED
TWISTED

SYSTEM INTERFACE CONNECTOR

and HP INTERFACE BUS CONNECTOR

(as viewed from rear

GROUND

PAIR

WITH

PAIR

WITH

PAIR

WITH 9 '-..._

PAIR

WITH

PAIR

WITH

PAIR

WITH 6 --

~::~;~~

LD106

~

11

\\

10

~

-

8

~

7 -

~

L

REN

/-:/16

I I

24

23

"'\

""'

22

21

20

19
18

17

:~

of

instrument)

-

7

6

--

:

~

~

~

~

A1

OJ1

A1

OJ2

(CONNECTED
EARTH

GROUND)
SHIELD
LATN
L

SRQ

LIFC

L

NDAC

LNRFD

LDAV
LEOI
LDI04

LOI03

TO

HP-IB

Logic

True

(low)

NOTE:

Mnemonics

Interface;

LATN

LDAV

L
LEOI
LIFC
LNDAC
LNRFD
LREN
LSRQ

Levels:

State

s0.8

on

L ADI05= H P

Mnemonic

DIOl

through

Vdc;

the

wiring

Interface

Fal~e

(high)

list

Bus)

8

for

A1

State

OJ1

L

DI05

?.+2.4

Vdc.

and

A 1

OJ2

are

MNEMONICS

\

coded

Band A to

LOW=
LOW=
LOW=
LOW=
LOW=
LOW=
LOW=
LOW

= Remote

LOW

= Service Request control line

differentiate

TABLE

Description

Attention control line

Data

Valid control line

Data

Input/Output

End

Or

Identify control line
Interface
Data
Not

Clear

Not

Accepted control line

Ready

For

Enable

~~:~:

between

the

two.

lines

control line

Data

control line

control line

(L

BDI05=8756

System

Figure

2-3.

8756A System Inteiface Connector and HP-IB Connector Signal/Pin Configuration

2-5

Installation Model 8756A

Table

2-3.

Model8756A Mating Connectors

8756A

JlA

Panel)

12

J3R

Name

B

Panel)

Panel)

Connector

(Front

(Front

(Front

* AlOJl 8756 System Interface

(Rear

Panel)

* Al012

HP

Interface Bus

(Rear

Panel)

Al

013

Pos Z

(Rear

Panel)

Al014 Sweep In

(Rear

Panel)

Blank

Connector

Industry

Audio

Audio 5-Pin

Audio 5-Pin

24-Pin Micro

24-

Identification

5-Pin

Pin

Micro

BNC

BNC

Connector

Connector

Connector

Ribbon

Ribbon

HP

Part

1251-1865

1251-1865

1251-1865

1251-0293

1251-0293

1250-0256

1250-0256

Mating

Number

Connector

Alternate

Switch craft

12

Switch craft

12

Switchcraft

12

Am

57-30240

Am

57-30240

Specialty

25-Pll8-l

Specialty

25-Pll8-l

Source

CLSM

CLSM

CL5M

phenol

phenol

Connector

Connector

Al

015

Stop Sweep

(Rear

Panel)

14

Modulator

(Rear

Panel)

15

Modulator

(Rear

Panel)

16

Modulator

(Rear

Panel)

17

Display

(Rear

18

Display

(Rear

19

Display

(Rear

*Refer to Figure

are given in Figure

Output

Panel)

Output

Panel)

Output

Panel)

2-4

Drive 1

Drive 2

Drive 3

X

Y

Z

for HP-IB Interface
2-3.

8756 System Interface

Cable

BNC

BNC

BNC

BNC

BNC

BNC

BNC

information.

Connector

HP-

IB Interface

AIOJl signals

1250-0256

1250-0256

1250-0256

1250-0256

1250-0256

1250-0256

1250-0256

connector

and

pin

Specialty

Connector

25-Pll8-l

Specialty

Connector

25-Pll8-l

Specialty

Connector

25-Pll8-l

Specialty

Connector

25-Pll8-l

Specialty

Connector

25-Pll8-l

Specialty

Specialty

AI

012

signals

configuration are given in Figure

and

Connector

25-

Pll8-l

Connector

25-

Pll8-l

pin configuration

2-3.

2-6

Model8756A

Figure 2-4. HP-IB Interface Cables Available

b.

When
nected
instrument

more

than

two

instruments

on

the bus, the cable length to

must

not

exceed 2 metres

feet).

c.

The

total cable length between all units

must

not

exceed

2-24.
2-25.

operated

2-26.

operated
5%
the 8756A

Operating
Temperature.

in temperatures from

Humidity.

in

to

80%

relative at +25°C to +40°C. However,

should

environments

extremes which cause

20

metres

Environment

The

instrument

The

instrument

with

be

protected from

condensation

(65

feet).

ooc

to +55°C.

humidity

temperature

instrument

2-27.

operated
imately

2-28.

should
the
The
bench
mounting
cabinet
the 8756A pulls
though
exhaust

Altitude.

at altitudes

The

instrument

up

to 4572 metres ( approx-

15,000 feet).

Cooling.

be

cabinet

at

least

and

Clearances

10

em

(4

7.6

em

(3

for

ventilation

inches)

at

inches) at the sides.

clearances provided by the plastic feet in

stacking

are

surfaces.

the sides.

and

adequate

The

fan

air

into the

Insure

the filler strips

for the top

mounted

and

on

instrument

that

the

air

venting holes are not obstructed within

the limits given above.

are con-

may

may

within

may

the

rear

in

bottom

the

rear

and

intake

each

(6

be

be

from

the

be

of

rack

of

out

and

Installation

HP-18

Cable

Part

Numbers

HP

10833A

HP

10833B

HP

10833C

HP

10833D

2-29.

2-30.
Front
cessary

for
ment
Figure
ordered as

2-31.

2-32.
Rack
necessary
tions for
an

Front

When

rack

correct

installation figures in

of

the
screw
specified
damage

located behind
ing holes in

Handles

installing

mount

screws,

manual, are used. Use

which

length

to

Instruments
Handle

Kit

hardware

mounting

two front

Installation

2-5.

Additional

HP

Part

Rack

Mounting

Instruments

Mount

Kit.

hardware

preparing

equipment

rack

kits, insure

is

internal

the

with

This kit supplies the nec-

and

instructions are also given in

Number

with

the

with 482.6

Lengths

1m

(3.3 ft.)

2m

(6.6 ft.)

4 m (13.2ft.)

0.5 m (1.6 ft.)

(Option

front

specified

longer

may

the

insrument.

Option

907)

handles and

that

in

this

section

than

result

components

screw

mount-

907

contain

the
the

of

the

a

in

installation instructions

handles

Option

on

the instru-

907

Kits may be

5061-0090.

(Option

Option

This

and

kit

installation

instrument

908)

908

suppplies

to

mm

(19 in.) sup-

contain

instruc-

mount

the

on

port spacing. Installation instructions are also

2-6.

given in Figure
may be

ordered

Additional

as

HP

Part

Option

Number

908 Kits

5061-0078.

a

a

2-7

Installation

Model8756A

2-33.

(Option

2-34.

Rack
bination
908

hardware
paring

rack with 482.6

with the

instructions

Additional

HP

2-35.
2-36.

2-37.
shipped

Rack

909)

Instruments

Mount

of

the

Kit.

This
and

the

instrument

addition

Option

Part

Number

STORAGE

Environment

The

instrument

in

environments

Mounting

with

Kit with

Option

kit

with

Option
Front
907

Kit

supplies

Front Handles

909

contain

Handles. a com-

and

the

Option

the

necessary

installation instructions for pre-

to

mm ( 19

are

mount

in.)

of

front handles.

also

given

on

equipment

support

Installation

in

Figure

spacing,

909 Kits may be ordered as

5061-0084.

AND

SHIPMENT

may
within

be

the following

stored

2-7.

or

limits:

Temperature

Humidity...

. . . . . .

5%

to

-40oC

95%

to +75oC

relative at

0°

to +40°C

2-38.

Altitude..

(Approximately

The

. . . . . .

instrument

Up

to 15240 metres

50,000 feet)

should

be

protected from
temperature extremes which may cause conden­sation in the instrument.

2-39.

Packaging

offices. A complete

diagram
kaging materials used for the 8756A is
Figure

a

Hewlett­indicating
address,
(located
container
In
by

2-41.

general instructions

2-9.

If

the

instrument

Packard

the type

model

on

FRAGILE

any

correspondence, refer to the

model

number

Other

for servicing,

number,

rear

panel

and

Packaging.

of

to assure careful handling.

should

kaging with commercially available

and

listing

shown

is being

returned

attach

service required,

and

full serial

serial plate).

number

Mark

instrument

full serial number.

The

following

be

used

for repac-

packaging

of

pac-

a tag

return

the

in
to

materials:
a.

Wrap
plastic.
Office
indicating
return

the

instrument

If

shipping

or

Service

the

address.

in heavy

to a Hewlett-

Center,

type

of

model

paper

Packard

attach

a

service required,

number,

and

full

or

tag

serial number.

b.

Use a strong

c.

Use
around
vide a firm
ment
control

d.

Seal

e.

Mark

enough

inside

the

the

shipping

all sides

cushion

the

panel

with cardboard.

shipping

shipping

container.

shock-absorbing

of

the

instrument

and

to prevent move-

container.

container

container

securely.

FRAGILE

material

tp pro-

Protect

the

to

assure careful handling.

2-40.

Original Packaging.

Containers
materials identical to those used in factory pac­kaging are available

through

Hewlett-

2-8

and

Packard

f

In

any

ment

by

number.

correspondence, refer to the instru-

model

number

and

full serial

Model8756A

Installation

1.

REMOVE

2.

ATIACH

3.

PRESS

Item

2

3

4

Qty.

2

6

2

SIDE

TRIM

FRONT

HANDLE

FRONT

HANDLE

HP

Part

5060-9900
2510-0195
5020-8897

STRIPS

TRIM 4 IN

OPTION

No.

Figure

INSTALLATION

1.

ASSEMBLY 2 WITH

PLACE.

907

(HP

Part

No.

c

D

0

6

8

2-5.

Option 907 Front Handles Kit

INSTRUCTIONS

FOUR

8-32 x 3/8

5061-0090)

CONTENTS

Front
#8-32
Front

SCREWS 3 PER

Description

Handle

x 3/8 Screw

Handle

Assembly

Trim

SIDE.

2-9

Installation

Model8756A

1.

REMOVE

2.

ATIACH

3.

REMOVE

OPTION

Item

2

3

Qty.

2

6

HP

Part

No.

5020-8863
2510-0193

Figure

2-10

INSTALLATION

SIDE

TRIM

RACK

MOUNT

FEET

AND

908

(HP

c

D

8

7

2-6.

INSTRUCTIONS

STRIPS

TILT

1.

FLANGE 2 WITH

STANDS 4 BEFORE

Part

No.

5061-0078)

Option 908

Rack

8-32 x 3/8

RACK

CONTENTS

Rack
#8-32

Mount

SCREWS
MOUNTING.

Description

Mount

Flange

x 3/8 Screw

Kit

3.

Model8756A

Installation

1.

Item

2

3

4

REMOVE

2.

ATIACH
SCREWS 4 PER

3.

REMOVE

Qty.

2

2

6

SIDE

TRIM

RACK

MOUNT

SIDE.

FEET

AND

HP

Part

5020-8875
5060-9900
2510-0194

Figure

INSTALLATION

STRIPS

TILT

OPTION

No.

1.

FLANGE 2 AND

STANDS 5 BEFORE

909

c

D

2

0

8

2-7.

Option 909

(HP

FRONT

Part

INSTRUCTIONS

HANDLE

RACK

No.

5061-0084)

ASSEMBLY 3 WITH

MOUNTING.

CONTENTS

Rack
Front
#8-32

Rack

Mount Kit with Handles

Description

Mount

Handle

Flange

Assembly

x 5/8 Screw

FOUR

8-32 x 5/8

2-11

Installation

Model8756A

R

1.

EMOVE

RACK

2-12

INSTALLATI

MOUNT

F

LANGE 3 AND/OR

ON

INSTRUCTIONS

nstru Preparation

oifl

FRONT

HAND

mentforSh"

LE

ASSEMBLY.

zpment

1

2.

Model8756A

Installation

Ref.

Desig.

1

2 08756-80009 2
3

4 9211-4499 7

5 9222-0069 2

HP

087

087

Figure

Part

56-800

56-80010 5

2-9.

Number

11

Packaging for Shipment Using Factory Packaging Materials

CD

6

Rear

Spaces­Carton -Inner
Side Rail
Carton -Outer
Poly

Bag-

To

Description

Corrugated

Cover

Instrument

(Not

Shown)

2-13/2-14

GENERAL

SAFETY CONSIDERATIONS

This product

markings

accordance with international standards.

SAFETY SYMBOLS

WARNING

._

____

and

related documentation must be reviewed for familiarization with safety

and

instructions before operation. This

Instruction
when it
Table

Indicates

Indicates earth (ground) terminal.

1

The

WARNING

_.

practice,
personal injury.
indicated conditions are fully understood

manual

is

necessary for the user to refer to the instruction

of

Contents).

hazardous

or

the like, which,

symbol: the product will be marked with this symbol

sign denotes a hazard.

Do

product

voltages.

if

not correctly performed could result in

not

proceed beyond a

has been designed

It

calls attention to a procedure,

WARNING

and

met.

and

tested in

manual

sign until the

(refer to

The

CAUTION
procedure, practice,
to,

could result in damage to
not proceed beyond a
fully understood

SERVICING

Any

servicing. adjustment. maintenance. or repair

personnel.

Adjustments described in this
protective covers are removed. Energy available at
injury.

manual

sign denotes a hazard.

or

the like, which,

CAUTION

and

met.

I

WARNING

may

be performed with power supplied

or

destruction

I

of

this product

many

points may,

It

calls attention to

if

not

correctly performed
of

part

or

all

sign until the indicated conditions are

must

be performed only by qualified

if

contacted. result

an

operating

or

adhered

of

the product.

to

the product while

in

personal

Do

General

Information

Model8756A

8756A

SCALAR

NETWORK

ANALYZER

*POWER

FOR

PART

Figure 1-1.

POWER

CABLE/PLUG

NUMBER

CABLE*

SUPPLIED

INFORMATION.

Model8756A

1-0

DEPENDS

Scalar

ON

COUNTRY

Network

OF

DESTINATION.

Analyzer

HP-IB

and

INTERFACE

REFER

Accessories

CABLE

TO

SECTION

Supplied

II

Model8756A

SECTION I

GENERAL INFORMATION

1-1. INTRODUCTION

1-2.

This

Operating

tains

information
test, adjust,
Model
1-1
plied
tion, description, options, accessories, specifi­cations,

1-3.

which

a.

b.

c.

d.

e.

8756A

shows

This

This

provide

SECTION
includes a brief

ment, safety
supplemental
identification,
sories available,
test

SECTION

information
tion
nectors, storage

SECTION
three

operating

information
operation
Notes

IB
SECTION

contains

instrument
with

SECTION

information

and

and

Scalar

the

instrument

section covers

and

other

manual

information

I,

equipment.

for use,

subsections

which

use

of

the

information

published

align

the

and

Service

required

service

Network

basic

is divided

GENERAL

description

considerations,

characteristics,

options

and

II,

INSTALLATION,

for initial inspection,

rack

and

III,

OPERATION,

information,

(not-HP-IB),

information

provide

87

56A).

IV,

PERFORMANCE

performance

specifications.

V,

ADJUSTMENTS,

required

instrument

to install, operate,

the

and

instrument

information.

as follows:

a list

mounting,

shipment.

which

information

required

to

manual

Hewlett-

Analyzer.

accessories sup-

into

eight sections

INFORMATION,

of

specifications,

available,

of

recommended

contain

local

and

(Programming

is in

properly

after repair.

con-

Packard

Figure

identifica-

the

instru-

instrument

acces-

provides
prepara-

mating

consists

to verify

accordance

con-

general

operation

remote

on

HP-

TESTS,

that

contains

adjust

of

f

SECTION
contains
parts

and

g.

SECTION
CHANGES,
tion to
earlier

h.

SECTION
overall
troubleshooting
Each
covered
contains
diagram,
troubleshooting
proper

1-4.

Supplied
Information
copy

of

the

and

should

by

the

operator.

ing

Information
through
The

1-5.
is

a Microfiche

be

used
cies
to

60
microfiche
Manual
tinent

1-6.

1-7.
Table
mance
instrument

your

part

number

Also listed

to

order

of

the

manual.

photo-duplicates

Changes

Service Notes.

SPECIFICATIONS

Instrument

1-1.

standards

General

VI,

REPLACEABLE

information

assemblies.

VII,

MANUAL

contains

make

this

equipment

VIII, SERVICE,

instrument

assembly within the

on a separate

a circuit description,

component

maintenance

with this

Supplement.

first

three

be

kept with

Additional

Supplement

nearest

is listed

on

the title page

part

4x6-inch microfilm

Each

package

supplement

specifications

These

is

specifications

or

tested.

required

backdating
manual
configurations.

block

and

repair

Service Sheet

location diagram,

information

of

the

manual

The

Supplement

sections

the

instrument

copies

can

Hewlett-

on

the title page.

number.

of

also

limits

Table

This

microfiche

the

manual

includes

as well as all per-

against

1-2

Information

PARTS,

to

order

BACKDATING

informa-

compatible

provides

diagram

procedures.

instrument

schematic

to

aid

instrument.

is

an

Operating

of

this

of

the
be

Packard

of

this

number

transparen-

contains

pages.

the

are

listed

are

the perfor-

which

lists

supplemen-

all

with

an

with

which

and

in

the

is a

manual,

for use

Operat-

ordered

office.

manual

can

up

The

latest

in

the

is

1-1

General

Information

Model8756A

tal characteristics.
are

not

specifications

tics

included

Supplemental

as

additional

but

are

user.

1-8.

1-9.
tested in
standards.

related
familiarization
instructions. A
siderations

1-10.
MANUAL

1-11.

ment
serial
digits

SAFETY

This

CONSIDERATIONS

product

accordance

has

been

with

Before operation, this

documentation

with

must

safety

complete

precedes Section I

INSTRUMENTS

SERIAL

PREFIX

,.-'----,

SER

1234A

FACTORY}

INSTALLED

OPTIONS

Figure 1-2. Ty pica! Serial

Attached

is a serial

number

and

letter

OPT

r7,+~

~f.LJ

HEWLETT • PACKARD

to

the

number

is

in

two parts.

are

the serial

001

rear

listing

COVERED

MADE IN

plate

last five digits are the suffix.
same
only
The
and
tents
the
SERIAL

1-12.
printing
ber
unlisted
instrument
this
ment

Changes

for all identical instruments; it

when a change

suffix, however,

is

different for

of

this

manual

serial

number

NUMBERS

An

instrument

of

this

prefix

that

is

serial

is

each

apply

on

manual

not

listed

number

made

is

assigned sequentially

instrument.

prefix(es)

the

manufactured

may

on

prefix

is different from those described in

manual.

is

The

manual

accompanied

supplement.

for this newer instru-

by a

This

supplement

characteristics

typical characteris-

information

for the

manufactured

international

safety

product

be

reviewed for

markings

of

of

NUMBER

SUFFIX

r-""-.

12345

Number

panel

(Figure

number

The

Safety

this

USA

of

The

prefix

Con-

manual.

BY

Plate

the instru-

1-2).

first four

prefix; the

is

changes

to

the

instrument

The

con-

to

instruments

listed

with

under

title page.

after the

have a serial

the title page.

num-

This

indicates

yellow

Manual

contains

and
and

and

The

the

the

'change

the
1-13.

supplement
recting
manual
Hewlett-

information'

manual

In

addition

errors

as

Packard

to the

may

contain

in

current

recommends

that

newer

to

the

and

ically request the latest
plement.
identified with this

number,
title page.
ment

1-14.
number
or

in

your

1-15.

1-16.

Analyzer

is

capable
reflection
RF
cies.
over
and

or

sweep
through
manual
the

connection
the A
and

1-17.
controls

identical

The
step keys,

measurement
Soft Key menus.
allows storage

provides for a
the

The

supplement

manual's

both

of

which

Complimentary

are available from Hewlett-Packard.

For

information

prefix

the

nearest

DESCRIPTION

The

that

Manual

Hewlett-

Model

is

not

Changes

Packard

8756A

is a microprocessor

of

making

and

transmission

(radio

the

can

frequency)

The

8756A

Hewlett-Packard

control a plotter

is

completely

oscillator

the

8756 System Interface. A

measurement

of

detector(s)

B,

orR

detector

the

use

of a compatible

The

CHANNEL

the

operation

Entry

channels,
area

or

keypad.
data,

allows

and

data

channel

The

and

recall

PRESET

status

of

the

instrument

operation.

1-18.

SET] is pressed,

forms
proper
functions.
test, they are

Upon

an

initial

internal

operation.

If

errors

indicated

power

the

8756A

hardware

and

or

failures

explains

how

to

instrument.

change

manual.

Manual

appear

information,

information

To

accurate

that

Changes

for this

print

date

on

the

copies

of

concerning

listed

on

the

supplement,

for cor-

keep

as possible,

you period-

manual

and

manual's

the supple-

a

title page

contact

office.

scalar

Scalar

based

(magnitude

Network

receiver.

measurements

and

microwave frequen-

programmable

Interface Bus (HP-IB),

(HP

(HP

7470A

8350B

or

or

9872C)

8340A)

complete

with

the

inputs

8756A

and/or

on

the

requires

bridge(s) to

front panel,

source.

area

on

the

front

of

two

independent,

three

The

detector inputs.

entry

using

Display

the

shows

information,

Instrument

of

the

of

the

8756A

on,

State

instrument

and

under

or

remote

after [PRE-

automatically

initializes

on

the

check

occur

CRT

to verify

certain

during

Display.

adapt

the

this

sup-

is

part

serial

It

only)

at

panel

but

knob,

the

and

area

state,

shows

per-

this

1-2

Model8756A

General

Information

1-19.

1-20.
select

POWER] (A. B, R), [DISPLAY]

Memory,

[SCALE] (20,

sion),
the

PLAY--.MEM],

(which
Reference
CRT

1-21.

1-22.
entered

(knob,

1-23.

1-24.
CRT
above
Scale
Cursor
channel
graticule. Soft Keys
keys to
functions

of
(Averaging
(Short/Open

[PLOT]

7470A
ON/OFF,
(Modulation

1-25.

Five Key Channel Operation

Five

front

[MEAS

or

and

[REF]

[SHIFT] key

scales

Level so

panel

RATIO]

keys for

(NR

Measurement
10,

5,

2,

I,

.5,

(LEVEL

enables

[MKR--.REF],

the

data

that

B/R

minus

.2,

or

POSition).

[CHAN

and

the

Display).

Data Entry

Data

Data

Display.

the

per

for

the

using

step keys,

Digital Display

value.

activated

the

one

or

for

both

The

graticule,

Division,

The

is

immediate

of

keypad).

Channel

annotates

Reference

Reference

shown

various

the

Entry

channels

on

may

be

right

of

functions

Annotation

the

Position
the

enabled

the

include: [CURSOR]

the

cursor

(outputs

or

Instrument State and SAVE/RECALL

for

both

channels),

Factor,

Averaging

calibration

the

current

ON/OFF),

and

display

9872C Plotter), [DISPLAY]

Hold,

Menu

ON/OFF,

OFF),

Service).

each

channel

NB),

[MEAS

(Measurement,

Memory),

or

.1

dB

per

Use

OFF], [DIS-

and

[AUTO]

changes

data

fits

on

may

area

functions

is

shown

on

Measurement,

Level value,

for

left

side

using

display.

(reads

[AVERAGE]

Detector

the

Offset),

to

an

These

[CAL]

(Labels

and

[MORE]

divi-

the

the

be

the

area,

and

each

of

the
the

value

HP

of

drift-free
is

square-wave
vides
reflection.
detected
to

an

shaping,

1-29.
kHz
the
rear
drive

(8340A)

drive
source

1-30.
1-31.

1-32.
contains
necessary

operation.

the

source

or

and

8756A

the

The

modulation

modulation

three

Modulator

panel

the

of

an

of
external

the

external

without

OPTIONS
Option

Option

a

hardware

modulated

for

transmission

the

modulation

detector

data

the

RF

internal

907,

907

pair

the 8756A. Refer to
and

Service

this kit

1-33.

1-34.
contains a pair
hardware
rack

with 482.6
ing. Refer to
Service
this

kit

1-35.

Kit

dles

Manual

and

instructions

Option

Option

to

Manual

and

instructions

Option

908,

908

of

mount

mm ( 19

Section

909,

An

RF

or

microwave

at

27.8 kHz.

the

8756A.

Absolute

signals

envelope

input. After filtering

is digitized

drive

is

available
Drives

8756A.

AM

or

microwave

modulator

and

needed

BNC

They

or

from

may

PULSE

as

modulation

Front Handles Kit

(HP

Part

Number

of

front
for
Section

for a

Rack

(HP

flanges

the

II

for a

handles

mounting

II

of

detailed

for

installation.

Mount

Part

Number

and

8756A

in

inches)

of

this

detailed

horizontal

Operating

for installation.

Rack

Mount/Front

signal

and

power.
are
is

carried

displayed.

for

the

any

one

outputs

be

on

used

INPUT

source,

required

or
for a

capability.

5061-0090)

and

the

handles

this

Operating

description

Kit

5061-0078)

the

necessary

an

equipment

spac-

description

Han-

pro-

then

and

27.8
of

the

to
to

the

to

of

and

of

1-26.
tion
Diodes).
pressing
a
to a
used

The

is

identified

Local

[LOCAL]. [PRESET] is

hardware

predefined

to

save/recall

Instrument

by 4 LED's

operation

self-test

and

state. [SAVE]

State for

may

restores

up

to

states.

1-27.

1-28.
que
technique

AC

Modulation

The

8756A uses

in

conjunction

has

the

advantage

with

the

its

AC

detector

remote

(Light

be

used

the

and

[RECALL]

nine

detection

of

providing

opera-

Emitting

restored

to

perform

instrument

front

panel

techni-

inputs.

This

nearly

by

are

1-24.

Option
contains
one

Option

in

tions

II

of

this
detailed
for

installation.

1-36.

Service

1-37.
one
an

The

Operating

Operating

909

one

Option

908

preceding

Operating

description

Option

Manual

standard

and

Information

(HP

Part

907

Front

Rack

Mount

paragraphs).

and

Service

of

this

910,

Extra

instrument
Service

Number

5061-0084)

Handles

Kit (see descrip-

Refer to

Manual

kit

and

instructions

Operating

is

supplied

Manual

(including

supplement).

Kit

and

Section

for a

and

with

Each

1-3

General

Information

Model8756A

Option
and
obtain
Manuals
part
cover

1-38.

1-39.
work
The

country
manual

1-40.
SUPPLIED

1-41.
modulation
use
three detectors
required
the

910 provides

Service

Manual

one

additiona 1 Operating

after initial

number.

of

ACCESSORIES SUPPLIED

Figure

this

listed

manual.

1-1

Analyzer

power cable

of

destination. Refer to Section II

for

HP

EQUIPMENT

shipment,

on

shows the 8756A

HP-

IB

supplied

Part

Number

A swept microwave source with

capability,

of

an

to

8756A

external

make

Refer to

modulator)

and/

or

microwave

EQUIPMENT

for specific examples.

EQUIPMENT
1-42.

1-43.

may
detects
RF

11664AIB

Up

be

the

signal.
diode to achieve
quency
to
11664B

1-44.

tional Bridges

1-45.

18

G Hz.

The

range
Detector

85020AIB

Directional

8755C
bridge,

Scalar

one

AVAILABLE

Detectors

to three

used with

envelope

Each

Model

the
of

detector uses a

-50

of

the 11664A

The

extended

is

10

MHz

or

85020A/B

Bridges designed for

Network

zero-bias Schottky
measures the return loss
measurements
splitter
B).

4.3
The
GHz
The

(HP

The

85020A

GHz.

85020B

with a

85021NB

range, with

may

be

11667A)

has

a frequency

with a

nominal

has

a frequency range

nominal

provides

the

85021A (APC-7 test

and

additional

(and

suppliment).

order

the title page

Operating

and

by

and

Service

manual

Scalar

cable

and

power cable.

depends

upon

of

information.

REQUIRED BUT

NOT

27.8

(internal

or

and

through

from

one

directional bridges are

measurements

AVAILABLE

11664NB

8756A.

the 27.8

dBm

sensitivity.
Detector

frequency

to

26.5

85021

and

85021A/B/C

Analyzers.

of

the

test device.

made

by

detector

impedance

impedance

an

extended

kHz
biased

AlBIC

adding

range

The

modulated

is

range

GHz.

the

8756A

Within

diode

(HP

of

of

0.01

of

75

frequency

port

Detectors
11664NB

Schottky

The

10

MHz

of

Direc-

each

detector

Ratio

a power

11664N

of

0.0 I to

50

ohms.

to 2.4

ohms.

connec-

To

rear

Net-

the

this

kHz

the

to

with

fre-

the

are

and

tor)

and

the

85021 C (Precision

connector)

covering

85021 B (APC-3.5 test

0.01

to

26.5

GHz.

impedance

1-46.

1-47.
RF

signal
capability
kHz

rate.
signals from
kHz

from

Operation

information

regarding

1-48.

1-49.

to

18

device

With

Detector, two

of

insertion

to

the
manual
and

measurements

is 50 ohms.

11665B

The

11665B

source

of

modulating

The

11665B

15

the

portion

on

the

use

11

666A

Reflection

GHz

the

using

addition

may

the

simultaneous

and

Section III

for

further

Modulator

Modulator

MHz

8756A. Refer to the Section III

of

test setup

of

Reflectometer Bridge

measurements
be

11666A Reflectometer Bridge.

return

0.01
port

85021A/B/C

used

the

Modulator

to

this

the

11665B

made

of

an

loss

Operation

information

regarding

Type

to

18

GHz.

connector) covering

is

required

does

RF

not

output

modulates

18

GHz

with

manual

and

measurements

Modulator.

from 40

with

one

external

ratio

measurements

may

be

made. Refer

portion

on

the

11666A Reflectometer Bridge.

1-50.

1-51.

mended
transmission
This
output
source leveling
tions.
over a frequency
wideband

minimum

1-52.

1-53.
five low pass filters with
quencies: 11688A

11684A. 6.8
11686A

recommended
generated
cise

11667

The

A Power Splitter

11667A

when

Power

making

measurements

Splitter

low

with

loss

two-resistor type splitter provides excellent

SWR

at

the

The

0.25 dB
measurements

of

uncertainty.

11678A

The

11678A Low Pass

13.0

GHz.

by

broadband

auxiliary

or

ratio

tracking

range

Low

Pass

2.8

GHz:

GHz:

11685A, 9.56

The

to reduce

the

RF

source

measurements.

arm

when

measurement

between

of

de to
to

18

be

Filter Kit

Filter

the

following

11689A 4.4

use

of

low

undesirable

when

output
GHz

made

Kit

pass

making

N test

and

port

the

nominal

if

the

have

at

the

a 27.8

test

the

27.8

for

further

MHz

coupling

11664NB

of

this

test setup

use

of

the

is recom-

wideband

the

8756A

used

for

applica-

arms

allows

with a

contains

cutoff

fre-

GHz:

GHz:and

filters

harmonics

pre-

is

1-4

Model8756A

General

Information

1-54.

1-55.

11668A

The

11668A
recommended
active devices
Use

of

the

11668A

the

11665B

drive

feedthrough

possible

vents

1-56.

1-57.
Cable
Cable
tor

or
Scalar
operation
mance

1-58.

1-59.

use

of
After
specific

Modulator,

11679AIB

The

11679A 7.6 m (25 foot)

and

the
fit directly
11666A

Network

is

degradation.

11664C

The

11664C

standard

initial

diode
interchangeable
Frequency
upper
extending

1-60.

1-61.
the

8620C,
families
sources

the

8340A,

stop/marker

range

end

the

Sweep

The

8340A

may

for

the

the

by

and

frequencies

display: Save

sweeper
the
Enable
Sweep two
and
Sweep).

8340A

the
Drive
Drive
panel
ulator
Sweep

ULATION

simultaneously

sweeper

modulation:

different

display

The

Synthesized

RF

output

output.

is

connected

EXT

AM

Drive

Oscillator

INPUT.

High

Pass

High

Pass

when

which

making
have

High

Pass

reduces

from

8m

amplifier

11679B

saturation.

Extension Cables

61

m (200 foot)

between

Reflectometer

Analyzer.

thus

permitted

Detector

Detector

diode

detector

detector

the

operating

Oscillators

detectors with

with

the

of

the

11664C is

diode

calibration

used,

range

Synthesized

8350A/B

be

used

as swept

8756A.

8756A

With

is

able

and

and

recall

front-panel

with

simultaneously

Set

the

frequency

both

simultaneously

8620C Sweep

Sweep
signal with
With

to

input.

is

connected

front

the

the

With

the

8620C

Sweep

panel

The

Filter

Filter

accessory

measurements

gain

below

Filter,

V to I m V

placed

the

modulator

50

and

Extension
Extension

the

11664NB

Bridge

and

Remote

without

Adaptor

Adaptor

allows

the

with

the

11664C is

11664NB

detectors.

limited

detector

of

the

used,

8756A.

Sweep Oscillator,

Sweep

either

Oscillator

or

CW

the

8350B

to:Interrogate

annotate

the

states

the

8756A:

with

the

proper

sweep time:

or

power

(Alternate

Oscillator

Oscillator

8756A

Modulator

the

Modulator

modulate

Oscillator

the

to

8340A,

the

the

Synthesized

PULSE

8350A/B

on

MHz.

after

pre-

Detec-

8756A

detector

perfor-

the

8756A.

the

on

the

thus

signal

or

start/

CRT

of

the

Preset

8756A:

ranges

and

the

rear

Mod-

MOD-

Sweep

is

Oscillator

the

RF

source

1-62.

l-63.
duced
7470A

Plotters

Hard

by

or
segmented
and

annotation:

trace:

1-64.

1-65.
ber

8756A.

•

Plot

Service Accessories

A Service Accessory Kit

08756-60020) is

The

One

(HP

provided
Amplifier

•

One
extender
This
shooting
Two
test

points
troubleshooting
pulser,

•

One
1400-0734)

(HP

as

an

when

•

One

(HP

for

ease
blies.
extractors.

1-66.

1-67.
8756A
may
critical

RECOMMENDED

Equipment

is

be

substituted

specification

is

capable

at

copy

the

8756A

9872C

into:

of

27.8 kHz.

plots

when

digital

Graticule

Channel

all.

available

accessory

15-pin

Part

Number
for

kit

printed

use

in

Assemblies

special

board

+5V

(HP

is

the

test

are

purpose

Part
provided

A3

points

provided

devices (logic

current

16-pin I.C.
Part

aid

tracer).

Test

and

one

Number

for

probing

troubleshooting.

Log

Amplifier

Part

Number

in

removing

which

do

not

required

listed in

Table

if
listed

internally

are

automatically

used

with

plotter.

lines

Plots

only:

1 trace:

(HP

for

servicing

includes:

circuit

5060-0049).

hoard

This

troubleshooting

(A7,

AS,

A9).

printed

Number

through

and

for

Clip

20-pin

1400-0979)

circuit
08756-60015).

to

aid

A6

two digital

powering

(HP

Part

I.C.

are

Integrated

Assembly

03950-4001).

Log

Amplifier

have

board-mounted

TEST

1-3.

it meets

in

EQUIPMENT

to

maintain

Other

or

exceeds

the

table.

modulating

pro-

an

HP

may

be

Labeling

Channel

Part

Num-

the

extender

board

the

Log

board

in

trouble-

Assemblies.

ground

digital

probe,

logic

Number

Test

Clip

provided

Circuits

Extractor

Provided

Assem-

the

equipment

the

2

is

1-5

General

Information

Model8756A

1-68.
BUS.

1-69.
remote

HEWLETT-PACKARD INTERFACE

( HP-IB)

The

8756A

programming
Hewlett-Packard
provides a remote

trol

of

the

instrument
internal
operator.
tem

etc.)

receives
Several
ting data.

tests) available to the

Remote

controller

that

sends

data

output

commands

from

modes

Through

is

factory

equipped

interface

using

Interface Bus (HP-IB).

operator

with

the

same

(except the line switch

manual

control

(desktop

a subset

the

is

maintained

computer.

or

8756A

are

available

of

computer,

instructions

using

the HP-lB.
for output-

HP-GL

with a

the

This

con-

and

(local)

by a sys-

to

and

(Hewlett-

Packard
may

be

Graphics

plotted

on
Hewlett-Packard's
Standard
tion
entitled

Packard

488-1978. A

of

the

HP-

"Condensed

Interface

IB is

59401-90030).

1-70.

1-71.

face.
to
patable

8756

The

This

control

digital plotter

System Interface

8756A also

is a

port

and

extract

Language).

the

8756A CRT.

implementation

complete

general

provided
Description
Bus"

used

(HP

has

an

8756 System Inter-

exclusively by

information

and/or

sweep oscillator.

user

graphics

The

HP-IB

of

the

descrip-

in the

to

Part

the

Hewlett-

Number

manual

the

from a com-

is

IEEE

8756A

1-6

Model 8756A

Table

1-1.

Model8756A Specifications

SCALAR

SPECIFICATIONS

8756A

NETWORK

and

General Requirements

ANALYZER

General

Information

Dynamic

inputs

Dynamic

channel
Measurement

±5°C,

Range:

(A,

Accuracy:

B,

+

and

measurement

taken

at a

CW

frequency.

10

dBm

R).

Dynamic

using

over

±(0.1 dB +0.01 dB/dB) from
±(0.2

dBm

+0.02 dB/dB) from

dBm.

ERROR

0.5

10

to

+I

T

TT

dB

-50

dBm

accuracy

ll664NB

0 to

-50

+10

0

in all three

of

Detector.

dBm

to

-40

-40

101-

a single

at 25°C

dB.

to

-50

20

Modulator

outputs
HP
turned
the
the

301-

Drive:

on

rear

ll665B

on

and

"OFF"

ll665B

state,

fully

Frequency
Symmetry

L...

40

I

Pill

,..

3

panel, each

Modulator.

off

via the front

the

modulator

on

(minimum

27.8

kHz

50%

±2%.

50

separate

capable

Modulation

panel

insertion loss).

±100Hz.

I

REFERENCE
POWER

LEVEL=

+10

dBm

I

I

I I

POWER

modulator

of

driving

drive

may

or

HP-

drive signal

drive

one

be

lB.

turns

In

Sweep

vided
Input

Voltage:

by the Sweep

on

the

back

Voltage level:

Blanked
Unblanked
Marker

Active

Marker

Horizontal

Oscillator

panel

of

0 to +

10V.

Voltage

the

Levels

+5V

OV

-4V

-8V

Dynamic

GENERAL

sweep voltage pro-

through

HP

the

8756A

Sweep

typical

typical

typical
typical

Accuracy

REQUIREMENTS

Modulation

modulation.

Frequency
2:30 dB

45%

to

Marker

marker

and

signals
Oscillator
back

panel

Sweep

Time:

Requirements:

27.8 kHz.

on/off

55%

ratio.

symmetry.

Blanking

are

through

of

the

the

HP

Minimum

Square-wave

Requirements:

provided

Blanking

by

Pas Z Blank

8756A

sweep time 2:150 ms.

amplitude

the

input

and

Sweep

on

the

1-7

General

Information Model 8756A

Table

NOTE:

Values

Scale

Resolution:

per

division.

measurement

Reference

increments
or

-90.00

Resolution:

Vertical: 0.006 dB for display.

0.01

dB for

Horizontal:

Graticule:

division

I

in

this

table

0.1, 0.2. 0.5, I,

Independently

channel.

Offset:

from

Offset level

-70.00

to +20.00

to +90.00 dB (ratio).

"Display

401

8 vertical,

Cursor".

points.

10

horizontal

approximately

1-2.

are

not

2,

controlled

adjustable

0.9 em.

Supplemental Characteristics for 8756A

SUPPLEMENTAL

specifications

5, I 0.

or

for

in

0.01

dBm

(absolute)

DISPLAY

divisions.

HP-18

CHARACTERISTICS

but

are

typical

20

dB

each

Measurements:

nels
inputs.

dB

CHARACTERISTICS

Averaging:

128.

or

Normalization:

to 0.006
division
points.

CHARACTERISTICS

characteristics

Two

selectable

for: A

Averaging

256

may

be

Traces

dB

resolution,

or

offset

The

included

independent

B, R NR

Factors

selected

are

horizontal

for

user

information.

display

B/R

of

2,

4,

for

each

channel.

stored

and

independent

resolution

chan-

or

NB

8,

16,

32, 64,

normalized

of

scale/
is

401

Interface:

IEEE

Speed:

ASCI I
ASCII

Binary

User-accessible

cally

HP-

488-1978

format
format

format

750

two-inch

rate.

Writing

Transfer

either

reading)

taken

speed: typically

Formats:

ASCII

or

as

at

a single

measurement

Description:

used

exclusively by

The

IB

interface

standard.

trace: 800
point:

trace:

Graphics:

vectors with 60

Data

strings

(nominally 6 characters

16

hit

point

trace.

8756 System

operates

ms

10

ms

35

ms

Number

10

may

integers.

or

as

the

8756A to

typical.

typical.

typical.

of

p.,s

per

be

transferred

Readings

an

entire

Interface

according

vectors: typi-

Hz

refresh

vector.

per

may

be

401

point

SYSTEM

is a

port

control

and

to

as

INTERFACE

Programmable

Input

selection

Scale/

division

Reference
Normalization
Averaging
Open/short
Instrument
Save/recall
Trace

and

Autoscale

Plot

Modulation

Interrupts:

for

the

HP-

following

Front-Panel
Sweeper

Illegal

out

command

Instrument

extract
plotters

information

and

Functions:

(A

B, R NR

Level

calibration

preset

registers

calibration

memory

on/off

IB Service

Requests

conditions:

key

pressed

of

range

self-test

error

from

sweep oscillators.

B/R

NB)

are

compatable

generated

digital

Operating

Power:

Hz.

Temperature

100. 120.

Approximately

Range:

220.

or

240 +5%

100 volt-amps.

0°C to

1-R

+55°C.

-10%.

GENERAL

50 to 60

Dimensions:

188H X 425.5W X

!6.75 X 17.75 in).

Weight:

Net

15

Shipping.

kg (33 lb).

20 kg (44 lb).

451

mm

D (7.4 X