Wavetek 3000 - OPTION 1 A RF LEVEL PROGRAMMING; Introduction to Option 1 A

INTRODUCTION
This factory-installedoptionrequires
a number of changes to the standard signal
generator, and provides remote
programming of the RF level, front-panel
RF level control, and reverse-power
protection
.
Remote programming is
accomplishedvia
the rear-panel connectorusing
8-4-2-1
BCD contact closures or TTL signals to
cover the range from 0 to 109
.9
dB in
0 .1
dB steps with +13 dBm as the 0 dB
reference point .
Front-panel level control is continuously
adjustable from +13 dBm to
-97
dBm ('110
dB range) in 10 dB steps plus 10
dB
vernier .
Reverse-powerprotection is provided by
this option to prevent damage to the
instrument if DC (100 volts max) or RF
(50
W max) voltages are inadvertently
applied to the signal generator RF OUT
connector
.
OPTION 1A
RF LEVEL PROGRAMMING
NOTE
DC protection
is not included on
Model 3002 .
Option lA
removes the
standard step
Attenuator and
Meter Board
from the
signalgenerator,
and adds a Programmable
Step
Attenuator,M41A-lAttenuator
Driver
module, B005
Meter Board,and B004
Level
Program Board .
Due to the slight
"insertion loss"
and
change in flatness
caused by addition
of the
Programmable
Attenuator to the
signal
generator, it will
not be possible
to obtain
+13 dBm output
on all fre-
quencies ; therefore, the maximum
cali-
brated output is
+12 dBmwhen
Option lA
is installed .