Table of Contents
Advertisement
Section 1-PG 501
OPERATING
I
INSTRUCTIONS
I
INSTRUMENT DESCRIPTION
t
The PG 501 Pulse Generator is designed to operate in a
TM 500 Series Power Module . The generator provides
simultaneous positive and negative 50 MHz output pulses
with 5 ns rise and fall times and independently variable
amplitudes from 0 .5 V to 5 V. Front panel controls provide
calibrated decade selection of pulse period from 20 ns to
20 ms and duration from 10 ns to 10 ms . Uncalibrated
pulse period from 20 ns to 0.2 s and duration from 10 ns to
0.1 s can be obtained with the variable controls .
PREPARATION FOR USE
Introduction
Turn-On Procedure
The PG 501 is calibrated and ready for use when
1 . Check that the PG 501 is fully inserted into the
received . It is designed to operate in any compartment of a
Power Module .
TM 500 Series Power Module only . Refer to the Power
'
Module Instruction Manual for line voltage requirements
2~ Pull the PWR switch on the Power Module to
and Power Module operation .
apply power to the PG 501 . Check that the POWER
indicator on the PG 501 front panel comes on .
'
I nstallation and Removal
1 . Install by aligning the upper and lower rails on the
PG 501 with the Power Module tracks and inserting until
the plug-in panel is flush with the Power Module panel .
In addition to the normal pulse output mode, a
locked-on mode is provided which holds the outputs at a
selected DC level. Also included is an output gated mode
which ties an external trigger input at the front panel to the
outputs. A trigger output that occurs approximately 10 ns
prior to the normal pulse output is available at the front
panel .
Turn the Power Module off before inserting the plug-
in; otherwise, damage may occur to the plug-in
circuitry.
2. Remove by pulling the release latch at the bottom of
3. Refer to the Front-Panel Controls, Connectors, and
the PG 501 front panel and sliding the plug-in straight out
Indicators description on the Controls and Adjustments
of the Power Module .
foldout page in Section 3.
OPERATING CONSIDERATIONS
Output ConneCtIOnS
Pulse characteristics can be preserved by observing the
The output of the PG 501 operates as a voltage
following precautions :
source behind 50
S2
and works into a 50
S2
load .
An unterminated or improperly terminated output will
1 . Use high quality
50 S2
coaxial cables and connectors .
cause excessive aberrations on the output pulse (see
Impedance Matching) . Loads less than 50 SZ will reduce the
pulse amplitude.
2. Make all connections tight and as short as possible .
REV . B, MAY, 1975
Advertisement
Table of Contents
