HP 8360 User Manual

Page 177

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decreases by 10

For every

increases by 10

So the

dynamic range of positive to negative power levels is dependent on
the synthesizer power level setting.

The input impedance for this input connector is factory set at

but can be switched to 2

Refer to “Adjustments” in

the Calibration manual. See “Specifications” for the electrical
requirements of the AM input. Damage levels for this input are

or

AUX OUTPUT

provides a reference signal from 2 to 26.5

at a

typical minimum power level of -10

Nominal input impedance

is 50

EXT ALC

allows the synthesizer to be externally leveled. This input

is used for power meter leveling or negative crystal detector leveling.
Input impedance in crystal or meter leveling modes is nominally 1
MR. See “Specifications” for the signal requirements. Nominal input

impedance is 100

FM INPUT

accepts a -8 to

signal when on the 1 MHz/V

sensitivity, or a -1 to

signal when on the 10 MHz/V sensitivity.

Any signal greater than these limits will cause distortion. The
deviation changes linearly as the FM input changes from 0 to its
upper or lower voltage limit. The input impedance for this input
connector is factory set at

but can be switched to 60052. Refer

to “Adjustments” in the Calibration manual. Damage level for this
input is

or

PULSE INPUT

is TTL compatible. A TTL high input

causes a maximum selected RF power output, while a TTL low input
causes minimum RF output

RF on/off ratio). Nominal

input impedance is 50

When using internal pulse generator, a

TTL-level pulse sync signal preceding the RF pulse by nominally
70 ns is produced at this connector. The electrical requirements of
the PULSE INPUT are detailed in “Specifications”. The damage

levels for this input are

or

PULSE

SYNC

OUT

(Option 002 only) Outputs a 50 ns wide TTL

pulse synchronized to the leading edge of the internally-generated
pulse.

PULSE VIDEO OUT

(Option 002 only). Outputs the pulse

modulation waveform that is supplied to the modulator. This can be
either the internally- or externally-generated pulse modulation.

SWEEP OUTPUT

provides a voltage range of 0 to

V. When

the synthesizer is sweeping, the SWEEP OUTPUT is OV at the
beginning of the sweep and

at the end of the sweep regardless

of the sweep width. In CW mode, the SWEEP OUTPUT ranges
from 0 V at the synthesizer minimum frequency to

V at the

specified maximum frequency, with a proportional voltage for
frequencies between the specified minimum and maximum. When the
synthesizer is in manual sweep operation the sweep output voltage is
a percentage of the span. Minimum load impedance is 3

HP 8360
User’s Handbook

Operating and Programming Reference

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