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Pulse modulation – Atec Agilent-N5183A User Manual

Page 12

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12

Pulse modulation

1

(Option UNU)

On/Off ratio

> 80 dB (typ)

2

Rise time

< 50 ns (typ)

Fall time

< 50 ns (typ)

Minimum width

ALC on

≥ 2 μs (typ)

ALC off

≥ 500 ns (typ)

Resolution

20 ns (nom)

Pulse repetition frequency

ALC on

DC to 500 kHz

ALC off

DC to 2 MHz

Level accuracy

< 1 dB (typ)

(relative to CW, ALC on or off)

Video feedthrough

< 350 mV (typ)

Pulse overshoot

< 15% (nom)

Pulse compression

15 ns (typ)

Pulse delay

RF delay (video to RF output)

10 ns (nom)

Video delay (ext input to video)

30 ns (nom)

External input

Input impedance

50 ohm (nom)

Level

+1 Vpeak = ON (nom)

Internal pulse generator

Modes

Free-run, square, triggered, adjustable doublet,

trigger doublet, gated, and external pulse

Square wave rate

0.1 Hz to 10 MHz, 0.1 Hz resolution (nom)

Pulse period

500 ns to 42 seconds (nom)

Pulse width

500 ns to pulse period – 10 ns (nom)

Resolution

10 ns (nom)

Adjustable trigger delay

– pulse period + 10 ns to pulse period to pulse

width –10 ns

Settable delay

Free run –3.99 to 3.97 μs

Triggered

0 to 40 s

Resolution

10 ns (nom)

(delay, width, period)
Pulse

doublets

1st pulse delay

0 to 42 s – pulse width – 10 ns

(relative to sync out)
1st pulse width

500 ns to 42 s – delay – 10 ns

2nd pulse delay

0 to 42 s – (delay1 + width

2

) – 10 ns

(relative to pulse 1)

2nd pulse width

20 ns to 42 s – (delay1 + delay

2

) – 10 ns

1.

Pulse specifications apply to frequencies > 500 MHz. Operable down to 10 MHz.

2. Applies to power levels > –5 dBm for Option 1E1.