Agilent Technologies E4438C Wideband AM, Pulse modulation, Specifications for Analog Modulation

Models: E4438C

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Wideband AM

Specifications for Analog Modulation

Wideband AM

Rates [1 dB bandwidth] 1

 

 

ALC on

(400 Hz to 40 MHz)

 

ALC off

(DC to 40 MHz)

 

 

 

Wideband AM using external I input only

 

Sensitivity

0.5 V = 100%

 

Input impedance

50 , nominal

 

 

 

Pulse modulation

On/off ratio 1

 

 

4 GHz

> 80 dB

 

> 4 GHz

(> 64 dB)

 

 

 

 

Rise/fall times1

(150 ns)

 

Minimum width1

 

 

ALC on

(2 µs)

 

ALC off

(0.4 µs)

 

 

 

Pulse repetition frequency1

 

ALC on

(10 Hz to 250 kHz)

 

ALC off

(DC to 1.0 MHz)

Level accuracy 1, 2 [relative to CW at 4 dBm standard, 7.5 dBm Option UNB, 4.5 dBm Option 506]

(< ±1 dB)

Pulse modulation using external inputs

Input voltage

 

 

RF on

> +0.5 V, nominal

RF off

< +0.5 V, nominal

Input impedance

50 , nominal

 

 

 

Internal pulse generator

 

 

Square wave rate

0.1 Hz to 20 kHz

Pulse

 

 

Period

8

µs to 30 seconds

Width

4

µs to 30 seconds

Resolution

2

µs

 

 

 

1.Parentheses denote typical performance.

2.With ALC off, specifications apply after the execution of power search. With ALC on, specifications apply for pulse repetition rates 10 kHz and pulse widths 5 µs.

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Agilent Technologies E4438C manual Wideband AM, Pulse modulation, Specifications for Analog Modulation, On/off ratio