Atec Noise-Com-PNG7109 Manuel d'utilisateur télécharger pdf

png7000 series

PRECISION

NOISE

GENERATORS

(AWGN)

General Specifications:

Output White Gaussian noise

Crest factor 18 dB minimum

Output noise power +3 dBm

Noise attenuator 0 to 63 dB in

range 0.25 dB steps

Noise attenuator ±0.2 dB or 0.5%

accuracy at 1 - 500 MHz

±0.2 dB or 1%

at 0.5 - 1.0 GHz

±0.3 dB or 2%

at 1 - 2 GHz

Signal path gain 0 ±1 dB

Group delay variation ±0.2 ns/40 MHz

Standard connectors BNC female

Dimensions 17 in. wide x 5.25 in.

high x 12.5 in. deep

Mounting Front panel handles

and fold-down feet

for bench mounting.

Brackets included for

19 in. rack mounting

Power 115 VAC, 60 Hz (230

VAC, 50 Hz optional)

Operating -10

C to +60

temperature

Specifications subject to change without notice.

The PNG7000 Series instruments generate

additive white Gaussian noise and provide a

summing input to perform signal-to-noise or

carrier-to-noise ratio testing capability. A key

feature of this instrument is its low distortion

signal path which sums the user-supplied signal

with the internal precision white noise source.

The signal path has a nominal insertion gain of

0 dB, with very

low amplitude

and phase

ripple. The noise

source provides

an exceptionally

high crest factor

of 18 dB for

accurate bit error

rate testing, even

with large carrier-to-noise (CNR) or bit energy-

to-noise density (E

) ratios. With option 7

(DC instead of AC coupled) signal path, the

PNG7000 can add noise directly to a digital TTL,

ECL, or similar signal that operates in a 50-ohm

system.

The standard PNG7000 is a broadband device.

For applications in which the frequency range is

limited, the unit can be configured with up to

five band-limited noise sources, each optimized

for flatness over the specified frequency band.

The PNG7000 Series is microprocessor-controlled

and continually provides information about

operation of the instrument on a 4 x 20 charac-

ter LCD display. The instruments allow control of

the noise level, noise on/off, signal on/off, and

noise source selection in three ways: at the front

panel keypad, remotely via IEEE-488 bus, or

automatically under program control.

The PNG7000 instruments can be integrated

into a test station under software control (Lab

Windows drivers are available from National

Instruments) and with the aid of a precision

power meter, carrier-to-noise ratios can be set.

www.noisecom.com

1 MHz TO 2 GHz

Rev Date 5/15/03

1 2

Résumé du contenu

Page 1 - 1 MHz TO 2 GHz

png7000 seriesPRECISIONNOISEGENERATORS(AWGN)General Specifications:Output White Gaussian noiseCrest factor 18 dB minimumOutput noise power +3 dBmNoise

Page 2 - To order call 201-261-8797

Once a CNR calibration has been performed, the ratio canbe changed using the internal precision attenuator to varythe noise power without degrading ac

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Atec Noise-Com-PNG7109 Manuel d'utilisateur

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