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A series only – Atec Agilent-E8251A User Manual

Page 9

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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

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