Atec 35660A User Manual

SIGNAL ANALYZERS

Dual-Channel, Dynamic Signal Analyzer 244 pHz to 102.4

Model 35660A

kHz

•

Network and spectrum analysis

. 102.4

. 51.2

single channel measurements

kHz

dual channel measurements

kHz

. 401 line resolution

70

dB

dB

dynamic range

amplitude accuracy

1.0 degree channel match

f

.

•f0.5

•f0.4dBand

. Frequency accuracy of

t

30 ppm

HP 35660A Dual-channel Dynamic Signal Analyzer

The HP 35660A Dynamic Signal Analyzer is an FFT-based instru-

ment that provides spectrum and network measurements in electron-

mechanical test, acoustics, and other low frequency application

ics,
areas. The analyzer also offers built-in test and automation features,

traditionally available only with a computer. These features include
an internal programming language (HP 35680A Instrument BA­SIC), a built in disc drive, limit testing and data tables. With automa­tion built in, the HP 35660A can save you both time and money.

The HP 35660A performs spectrum analysis from 488

1

02.4

provides 401 lines of resolution in both one- and two-channel modes.
Complete alias protection and digital zoom ensure high resolution mea­surements with warranted accuracy. Measurements include linear spec-

trum, power spectrum, frequency response, gain/phase, group delay,

me history, and power spectral density. A built-in 3.5 inch disc drive,

ti
compatible with HP Series 200/300 workstations, stores traces, tables,

states, and application programs.

and network analysis from 244AIIz

kHz

to 51.2 kHz. The FFT

Allz

Electrical Spectrum Analysis

The HP 35660A is typically 10 to 100 times faster than swept spec-

trum analyzers for equivalent measurements, and provides higher res-

102.4

kHz

t

0.5 dB and

frequency

(?44

4H7.

olution

speed and resolution contribute to the quality of HP 35660A tests for
distortion, spur level, frequency drift, intermodulation, and other sig­nal parameters. Amplitude accuracy of

racy of

t

headsets, modems, telephone components, speakers, transducers, and

electrical motors.

throughout the

30 ppm guarantee precision in tests of such devices as

range). This

frequency

Electrical Network Analysis

With two input channels and a built-in source, the HP 35660A can
quickly measure the response of low-frequency filters and networks.
Source signals provided are random noise, periodic chirp, and fixed
sine. Periodic chirp is useful for testing non-linear responses such as
output clipping of amplifiers. Random noise is ideal to get a linear
approximation of a non-linear network. Fixed sine lets you test re-

sponse at a specific frequency.

accu-

The HP 35660A is also a good choice for low-frequency transmis­sion measurements in telecommunications and other areas. To ensure
highly accurate magnitude and phase measurements, the HP 35660A
offerst0.4 dB gain and

custom analysis of these measurements, the HP 35660A provides
waveform math, including conjugation, FFT, inverse FFT, square

root, and frequency domain integration and differentiation.

Machinery Vibration

to

The HP 35660A is an excellent fit for applications that require vi-

bration monitoring at full load. With the analyzer's built-in limit ta­bles, users can implement vibration and health monitoring of engines,

machine tools, and other equipment, without an external computer
and without programming. The analyzer's internal disc drive makes it

easy to record, store, and recall limits for production or maintenance
testing.

f

1.0 degree input channel phase match. For

Structural Analysis

The HP 35660A uses force and exponential windows to perform

frequency response testing of mechanical devices and structures.
Using HP Instrument BASIC, the analyzer can simplify data collec-

tion for your modal surveys. Fot complete modal analysis, you can

choose from several third party modal packages.

Acoustics

Another major application area for the HP 35660A is acoustics

and noise measurements. This includes testing for room and device

responses, noise identification and level, and underwater acoustic
tests such as sono-buoy and sonar transducer testing. Acoustic inten-

measurements are available with third party software.

sity

Limit and Data tables for fast, consistent results

Spectrum and network analyzers are frequently used to test signals

and device response against certain specifications. The HP 35660A

i

mproves this process by providing built-in limit testing. A limit line

defines acceptable minimum and maximum values at specific X-axis

points (in both time and frequency domains). Users can specify an
upper and lower limit for every point in the trace, as well as specifying

acceptable bands and slopes. During a test, the HP 35660A checks

the trace level against the limit lines, then displays PASS or FAIL on
the screen. Limit testing is especially powerful when used with HP
Instrument BASIC. For example, a program can quickly pull limit
linesofdisc and use them as a reference against a series of traces.

HP 35680A Instrument BASIC

To simplify automation and test analysis, the HP 35660A includes
a powerful new feature: a subset of HP Series 200/300 BASIC run­ning inside the analyzer. HP 35680A Instrument BASIC adds deci­sion-making, branching, I/O including control of other instruments,
and custom user interfaces. IIP Instrument BASIC is fully syntax­compatible with HP BASIC, so current IIP workstation owners can

easily merge the HP 35660A and HP Instrument BASIC into their
test systems.

Data tables are another key feature of the HP 35660A. A data
table eliminates the need to move markers along a trace to read multi­ple values. This is particularly useful for such applications as noise
level

monitoring at multiple frequencies. Enter up to 400 X-axis loca-

tions in a data table, and the HP 35660A fills in the table with a Y­axis value for each X entry. You can display, print, or store a complet-

ed table. For repeated measurements, you can create a unique table

for each test and quickly recall each table from disc.

In addition to data tables and limit testing, the analyzer includes

extensive markers to highlight harmonics and sidebands and to search

for

minimum, maximum, and target values.

HP-113

System Control

When used with HP Instrument BASIC, the HP 35660A can serve
as a test system controller. A system might include peripherals such
as hard discs, printers and plotters, as well as other instruments such
as switch matrices, voltmeters and signal generators. You can auto­mate smaller systems without the cost of an external computer, while
conserving rack or bench space.

A Language for Programmers and Non-Programmers

With over 150 BASIC commands, HP Instrument BASIC is a
powerful tool for programmers. But it also includes a feature that
makes it easy for non-programmers to automate analyzer functions.
Keystroke recording automatically creates a program as the user
makes measurements from the front panel. An entire test sequence
can be recorded and saved with no programming required.

HP Instrument BASIC programs can be developed on an HP 9000
Series 200/300 BASIC workstation and then transferred to the ana­lyzer via a 3.5 inch floppy disc (files must be saved in LIE format).
Programs developed on the HP 35660A will also run on a worksta­tion. If desired, the analyzer portion of a computer-aided test (CAT)
can be created with keystroke recording, then merged with the main
program written on an external computer. The HP 35660A is also
fully IIP-IB programmable from an external computer, using any

language you choose.

Custom solutions with the HP 35660A

Applications that involve long and repetitive testing can benefit sig-

nificantly from custom solutions available with the HP 35660A. For
example, in a production environment, HP Instrument BASIC pro­grams can automatically recall test setups and prompt a technician

for date, time, and other important information. Limit testing can
quickly indicate the presence of spurs or undesired harmonics. Opera­tor interaction is further reduced with routines that automatically
catalog results to a printer/plotter or to disc.

The HP 35681A Analysis Pack provides examples of how to cus­tomize the HP 35660A for specific applications. The Analysis Pack is
a set of network and spectrum application programsthat

power of the HP 35660A analyzer.

Written in IIP Instrument BASIC, the Analysis Pack provides sev-

eral ready-to-use application tests, including distortion testing, filter

parameter testing, and modulation and peak analysis. The Analysis

Pack shows how easy it is to customize tests and provides a set of
tested, documented routines you can re-use in your own custom appli­cations.

enhance the

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SIGNAL ANALYZERS

Dual-channel, Dynamic Signal Analyzer

HP 35660A

HP 35660A Specifications

Frequency

Measurement Range: Channel l: 488
channel mode. Channel 1 and 2: 244
mode.

Accuracy:~0.003%
Resolution: Span/400, both channels, single or dual channel opera-

tion.
Spans:

# of spans available
min span
max span

me record length

ti

Window Functions: Flat Top, Hann, Uniform, Force, Exponential
Window Shape Parameters:

Uniform
Hann

Flat Top

'relative to analyzer's 401 calculated frequency points

Typical Realtime Bandwidth: (random noise source off)

Averaging Off
Fast Averaging

Amplitude

I

nput Range: The calibrated input range is +27 dBV (31.7 Vpk) to

-51 dBV (3.99

Dynamic Range: All distortion (intermodulation and harmonic)
spurious and alias products < -70
range.

Noise: (-51 dBV range,

1

60 Hz to 1.28

1.28

Common Mode Rejection: (Frequency <= I

-51 to -11 dBV Ranges

(3.99

-9 to +9 dBV Ranges
(502 mVpk to 3.99 Vpk)
+I 1 to +27 dBV Ranges
(5.02 Vpk to 31.7 Vpk)

Crosstalk: < -130

-70

greater. (Receiving channel input termination = 50
Absolute Amplitude Accuracy:

(488 MHz to 102.4

Phase

Single Channel Phase Accuracy:
488 piIzto 10.24

(relative to external trigger, 16 vector averages, DC coupled, ampli­tude

Frequency Response

Gain Accuracy:
Phase Accuracy: 488

(

DC coupled, 16 RMS averages, 488

Ch2

I

nputs

Connection: Grounded or Floating
I

nput Impedance: 1 Mil

Noise
Equiv. BW-3dB

(

kHz

to 102.4

mVpk

to 399

dB

relative to the receiving channel range, whichever is

-50

-

dB

Range, full scale periodic chirp input, Uniform window)

of frequency reading

Channel

Single

20 (x2 sequence)

195.3

mHz
kHz

102.4

400/span

%O

of span)

0.25

0.375

0.955

mVpk).

kHz

kHz< -140

mVpk)

kHz,DC coupled)

kiIz

relative to full scale)

rt 0.4

1

0.24

Low to chassis in floating mode:

1

MS2
Low to chassis in grounded mode: 50
(

Typical)

of span)-3dB

(%

0.25

0.37

0.9

Single Channel

800 Hz

3.2

kHz

Range is adjustable in 2

Rs

= 50 ohms, 16 RMS Averages)

< -130

dB

relative to the transmitting signal, or

dB

uHz

to 10.24 kHz

kHz

to 51.2

~10%,

shunted by < 0.01

pHz

M}lz

to 51.2klIz, dual channel

BW

f

shunted by < 100

Shape FactorWindow
(-60dB

dB

relative to full scale input

dBV/sgrt
dBV/sgrt

>80dB(typical)

>60dB(typical)

>40dB(typical)

0.5dBf

f

4.0 degrees

•. 1 degree
kHzi
uHz

to 51.2

uF

to 102.4

Dual Channel
20 (x2 sequence)

97.6

51.2

400/span

716

9.1

2.6

Dual Channel

400 Hz

1.6

Hz (.316
Hz (.100

kHz)

0.03

1.8 degree

kHz,

mHz
kHz

BW'

BW)

kHz

dBincrements.

uV/sgrt
uV/sgrt

S2)

7ofinput range

kHz,

Chl range =

pF.

(Typical)

12

244,uHzto102 kHz

I

nput Coupling: AC or DC: coupling;

Common Mode Range: (floating mode)

single

Flatness

(dB)'

+0, -4.0
+0, -1.5
±0.005

Hz)
llz)

Trigger

I

nternal: Positive or negative slope

External: TTL, positive or negative slope

Source

Source types: Random, periodic chirp, fixed sine
Output Impedance: -- 5 S2
Max. Output Level:
Maximum current:

Maximum capacitive load: 1000
Sine:

Frequency range: 15.63 mHz to 102.4
Amplitude Accuracy:
Flatness: -. 1.0
Harmonic, subharmonic, and other spurious responses:
488ullz

10kHz
(Vpk=0. IV to 5V)
Residual DC offset:

Random:

Flatness:
(passband,
Vpk = .1 V to 5V, full span)

General

Power: 90 - 132 VAC, 48 to 440 Hz

Weight: 22 kg (47Ibs)

Dimensions:

HP-18

I

mplementation of IEEE Std 488.1 and 488.2

SHl

AHI

E

Compatible Peripherals

Disc Drives: HP SS/80 Protocol Disc Drives (These include the
9122C,D,S;

Plotters:
plotters

Printers:

Ordering Information

HP 35660A

Option 001 Add 2 Mbyte RAM
Option 002 Delete disc drive

Option

Option

Option

Option

HP 35680A
HP 35681A

Accessories Supplied
Operating and Programming Manuals, HP 35660A performance

tests

AC roll-off is < 3

Level:f1

to 10

to 102.4

--:

1

98 - 264 VAC, 48 to 66 Hz

280 VA maximum

24 kg (52Ibs)

T6 TEO L4 LEO SRI

Hewlett-Packard Graphics Language (HP-GL) digital

HP-113

908
910

915
W30

00% of input range

-

5 Vpk

t

20 mA

-

dB

(relative to 1kHz,

kHz:---:

- 60

kHz:<- 40

t

8.0mV,

5.0dB(typical)

relative

to minimum amplitude in the frequency domain,

net
shipping

222mm

(8.75") high

425.5mm
538mm

9133D,H,L;

Dynamic Signal Analyzer

Rack mount kit
Extra Operating Manual Set
and HP-IB Programming Reference

Service Manual and Kit

Extended repair service. See page 725.

Instrument BASIC

Analysis Pack

(16.75") wide

(21.19") deep

and I UP

printers, alpha and raster dumps.

dB

at 1 Hz.

f

4V peak

pF

4`'.

Vpk (at 1 kHz, Vpk = .l V to 5V)

dB

dB

RL1

kHz

Vpk= .I V to 5V)

relative to source level

relative to source level

-

Vpk

6.0%

PPO DC I DTI

9153A,C)

Cl,C2,C3,C12

Price

$12,500

$1500

$100

$85

$75
$150
$200
$500
$_'50