CONNECTORS
When the swept signal generator is in log AM mo de, the input
accepts a wider range of input signal. For every
0
1 V input, the
RF output level decreases by 10 dB. For every +1 V, increases by
10 dB. So the dynamic range of positive to negative p ower levels is
dependent on the swept signal generator power level setting.
The input imp edance for this input connector is factory set at
50 , but can b e switched to 2 k. Refer to \Adjustments" in
the
Calibration
manual. See \Sp ecications" for the electrical
requirements of the AM input. Damage levels for this input are

+15 V or
0
15 V.
AUX OUTPUT
provides a reference signal from 2 to 26.5 GHz at a
typical minimum power level of
0
10 dBm. Nominal input imp edance
is 50 .
EXT ALC
allows the swept signal generator to b e externally leveled.
This input is used for p ower meter leveling or negative crystal
detector leveling.
Input imp edance in crystal or meter leveling mo des is nominally
1 M. See \Sp ecications" for the signal requiremen
ts. Nominal
input imp edance is 100 k.
FM INPUT
accepts a
0
8 to +8 V signal when on the 1 MHz/V
sensitivity,ora
0
1 to +1 V 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 imp edance for this input
connector is factory set at 50 , but can b e switc
hed to 600 . Refer
to \Adjustments" in the
Calibration
manual. Damage level for this
input is

15 V or
0
15 V.
PULSE INPUT
is TTL compatible. A TTL high input (
>
+2 V)
causes a maximum selected RF p ower output, while a TTL low input
causes minimum RF output (
>
80 dB RF on/o ratio). Nominal
input imp edance is 50 . When using internal pulse generator, a
TTL-level pulse sync signal preceding the RF pulse by nominally
70 ns is pro duced at this connector. The electrical requirements of
the PULSE INPUT are detailed in \Specications". The damage
levels for this input are

+5.5 V or
0
0.5 V.
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
mo dulation waveform that is supplied to the mo dulator. This can b e
either the internally- or externally-generated pulse mo dulation.
SWEEP OUTPUT
provides a voltage range of 0 to +10 V. When
the swept signal generator is sweeping, the SWEEP OUTPUT is
0 V at the b eginning of the sw
eep and +10 V at the end of the
sweep regardless of the sweep width. In CW mo de, the SWEEP
OUTPUT ranges from 0 V at the sw
ept signal generator minimum
Operating and Programming Reference C-5
To Next Page
Loading...
Need help?
General
