TM11-6625-2948-14+P
NOTE
MODULATION OPERATION
Undelayed or delayed sync out signals are
Perform steps a. through e. of paragraph 2-5 and proceed
available at the DELAYED SYNC OUT con-
as follows:
nector and/or the UNDELAYED SYNC
OUT connector of the modulator.
a. Set the FUNCTION switch of the modulator to EXT
INTERNAL FM OPERATION
lNT
(Internal to SG-1145/URM)
b. Set the SELECTOR switch of the modulator to INT.
Perform steps a. through e. of paragraph 2-5 and proceed
c. Set the MODULATION SELECTOR switch of the signal
as follows:
generator to EXT
a. Set the MODULATION SELECTOR switch of the signal
d . Adjust the RATE control of the modulator for the
generator to INT FM ~.
desired rate.
b. Adjust the INT FM DEV control to obtain the desired
sweep width.
INTERNAL PULSE MODULATION OPERATION
Perform steps a. through e. of paragraph 2-5 and proceed
as follows:
Perform steps a. through e. of paragraph 2-5 and proceed
as follows:
a. Set the FUNCTION switch of the modulator to lNT
a. Set the MODULATION SELECTOR switch of signal
b. Set the SELECTOR switch of the modulator to INT.
generator SG-1145/URM to EXT FM.
c. Set the MODULATION SELECTOR switch of the signal
b. Set the FUNCTION switch to FM and the SELECTOR
generator to EXT
switch to INT on modulator MD-1075/URM.
d. Adjust the RATE and PULSE WIDTH controls of the
c . Adjust the RATE control and multiplier switch X1,
modulator for the desired pulse rate and width.
X10, X100 on modulator MD-1075/URM for the desired
modulation rate.
d . Adjust the FM DEV AMPLITUDE control for the
desired deviation.
Perform steps a. through e. of paragraph 2-5 and proceed
as follows:
2-11. EXTERNAL FM OPERATION
a. Set the FUNCTION switch of the modulator to EXT
/
INT
a. Connect the external modulating signal to the EXT FM
connector.
b. Select the SELECTOR switch of the modulator to
EXT(+) or EXT(-) as determined by the externally applied
b. Perform steps a. through e. of paragraph 2-5.
pulse polarity.
c. Set MODULATION SELECTOR switch of the signal
c. Set the MODULATION SELECTOR switch of the signal
generator to EXT FM.
--
generator to EXT
d. Set FUNCTION switch of the modulator to OFF.
d. Connect the external modulating signal to the EXT
INPUT connector of the modulator.
e . Set the external FM source to desired characteristics.
