OPTION 010 DME Modulator
Annex-E-5
Fall time range 1.50 µs to 5.75 µs
Pulse pair spacing range 9.00 µs to 45.00 µs
Repetition rate range 10 pp/s to 6000 pp/s (100 ms to 166.65 µs)
Resolution (all above ranges) 0.05 µs
Selection method Keyboard or [⇑] and [⇓] keys at currently
selected step size
MODULATOR
Frequency range 960 MHz to 1215 MHz
Level range +10dBm to -110dBm in 0.1 dB steps
Level accuracy Standard mode ± 0.5 dB (± 1.5 dB)
ON - OFF ratio > 80 dB
Pulse pair level accuracy ± 0.5 dB
DME OPERATION
Introduction
This section explains how to use Option 010 when fitted to a 2030 Signal Generator.
Familiarity with the normal operation of the instrument is assumed.
Note...
When connecting the VIDEO and/or PULSE INPUT connectors to external equipment, a
double screened coaxial cable should be used in order for the instrument to conform to EMC
requirements.
Front panel
The front panel of the instrument fitted with Option 010 differs from the basic instrument
as follows:
REVERSE POWER
50W MAX
PULSE INPUT
50
W
50
W
EXT MOD 1
INPUT
EXT MOD 2
INPUT
W
100 k
W
100 k
0
-
MOD
ON-OFF
LF
ON-OFF
UTIL
MEM LF SWEEP
SIG GEN
x10
10
¸
SUPPLY
LF
OUTPUT
RF OUTPUT
enter
ms
%
rad
Hz
dB
3
é
é
7
8
GHz
V
4
5 6
MHz
mV
1 2
kHz
V
m
C5713
CARR
ON-OFF
KNOB
UP-ON
9
10kHz-2.7GHz signal generator 2031
20
O
I
Fig. E-4 2031 front panel with Option 010
(20) PULSE INPUT
50 Ω BNC socket accepts a pulsed signal to trigger the pulse
generator or to directly control the pulse modulator (Option
002):TTL.
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