Atec Agilent-E8251A - Manual (Page 9)

9
LF out
Output Internal1 or internal2. Also provides monitoring of
internal1 or internal2 when used for AM, FM,
or FM.
Amplitude 0 to 3 Vpeak, nominal into 50 Ω
Output impedance 50 W, nominal
Swept sine mode:
(frequency, phase continuous)
Operating modes Triggered or continuous sweeps
Frequency range 1 Hz to 1 MHz
Sweep rate 0.5 Hz to 100 k sweeps/s, equivalent to
sweep times 10 us to 2 s
Resolution 0.5 Hz (0.5 sweep/s)
Pulse modulation
≥ 500 MHz to ≤ 3.2 GHz 16 > 3.2 GHz
Power range
Internally leveled 0 to +10 dBm 0 to +10 dBm
With option 1E1 –110 to +10 dBm –110 to +10 dBm
On/off ratio 80 dB typical 80 dB
Rise/fall times (T
r
, T
f
) 100 ns typical 10 ns (6 ns typical)
Pulse width
Internally leveled ≥ 2 µs typical ≥ 1µs
ALC Off ≥ 0.5 µs typical ≥ 20 ns typical
Repetition freq
Internally leveled 10 Hz to 250 kHz typical 10 Hz to 500 kHz typical
ALC Off dc to 1 MHz typical dc to 10 MHz typical
Level accuracy (relative to CW)
Internally leveled ±0.5 dB ±0.4 dB (±0.15 typical)
ALC Off with power search 17 ±0.5 dB typical ≤ 20 GHz ±0.8 dB typical
≤ 40 GHz ±1.2 dB typical
Width compression ±50 ns typical ±5 ns typical
Video feedthrough 18 < 200 mV typical < 2 mV typical
Pulse delay
(ext input to RF output)
300 ns nominal 70 ns nominal
Pulse overshoot (V
or
) < 10% typical
Input level +1 Vpeak = RF On
Input impedance 50 Ω, nominal
16 For improved performance ≤ 3.2 GHz, special Option
HE6 is available. Contact your local Agilent Online
representative.
17 Power search is a calibration routine that improves
level accuracy in ALC-off mode. Unpulsed RF power
will be present typically up to 5 ms when executing
power search.
18 With attenuator in 0 dB position. Video feed-through
decreases with attenuator setting.
A Series only