Agilent Technologies E4438C Portable Generator User Manual


 
14
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
On/off ratio
1
4 GHz > 80 dB
> 4 GHz (> 64 dB)
Rise/fall times
1
(150 ns)
Minimum width
1
ALC on (2 µs)
ALC off (0.4 µs)
Pulse repetition frequency
1
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
Specifications for Analog Modulation
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.
Wideband AM
Pulse modulation