HP 5344S User Manual

Model8756A
1-54. 11668A High Pass Filter
1-55. The 11668A High Pass Filter accessory is
recommended when making measurements on
active devices which have gain below 50 MHz.
Use of the 11668A High Pass Filter, placed after
the 11665B Modulator, reduces the modulator
drive feedthrough from 8m V to I m V and pre-
vents
possible amplifier saturation.
1-56. 11679AIB Extension Cables
1-57. The 11679A 7.6 m (25 foot) Extension
Cable and the 11679B 61 m (200 foot) Extension
Cable fit directly between the 11664NB Detec-
tor or 11666A Reflectometer Bridge and 8756A
Scalar Network Analyzer. Remote detector
operation is thus permitted without perfor-
mance degradation.
1-58. 11664C Detector Adaptor
1-59. The 11664C Detector Adaptor allows the
use of standard diode detectors with the 8756A.
After initial detector calibration with the
specific diode detector used, the 11664C is
interchangeable with the 11664NB detectors.
Frequency range of the 11664C is limited on the
upper end by the diode detector used, thus
extending the operating range of the 8756A.
1-60. Sweep Oscillators
1-61. The 8340A Synthesized Sweep Oscillator,
the 8620C, and 8350A/B Sweep Oscillator
families may be used as swept or CW signal
sources for the 8756A. With either the 8350B or
the 8340A, the 8756A is able to:Interrogate start/
stop/marker frequencies and annotate the CRT
display: Save and recall front-panel states of the
sweeper simultaneously with the 8756A: Preset
the sweeper simultaneously with the 8756A:
Enable modulation: Set the proper sweep time:
Sweep two
different frequency or power ranges
and display both simultaneously (Alternate
Sweep). The 8620C Sweep Oscillator and the
8340A Synthesized Sweep Oscillator modulate
the RF output signal with the 8756A Modulator
Drive output. With the 8620C the Modulator
Drive is connected to the Sweep Oscillator rear
panel EXT AM input. With the 8340A, the Mod-
ulator Drive is connected to the Synthesized
Sweep Oscillator front panel PULSE MOD-
ULATION INPUT. The 8350A/B Sweep
General Information
Oscillator is capable of internally modulating
the RF source at 27.8 kHz.
1-62. Plotters
l-63. Hard copy plots are automatically pro-
duced by the 8756A when used with an HP
7470A or 9872C digital plotter. Plots may be
segmented into: Graticule lines only: Labeling
and annotation: Channel 1 trace: Channel 2
trace:
Plot all.
1-64. Service Accessories
1-65. A Service Accessory Kit (HP Part Num-
ber 08756-60020) is available for servicing the
8756A. The accessory kit includes:
• One 15-pin printed circuit hoard extender
(HP Part Number 5060-0049). This board is
provided for use in troubleshooting the Log
Amplifier Assemblies (A7, AS, A9).
• One special purpose printed circuit board
extender (HP Part Number 08756-60015).
This board is provided to aid in trouble-
shooting the A3 through A6 Assemblies.
Two +5V test points and two digital ground
test points are provided for powering digital
troubleshooting devices (logic probe, logic
pulser,
current tracer).
• One 16-pin I.C. Test Clip (HP Part Number
1400-0734) and one 20-pin I.C. Test Clip
(HP Part Number 1400-0979) are provided
as an aid for probing Integrated Circuits
when troubleshooting.
• One Log Amplifier Assembly Extractor
(HP Part Number 03950-4001). Provided
for ease in removing Log Amplifier Assem-
blies. which do not have board-mounted
extractors.
1-66. RECOMMENDED TEST EQUIPMENT
1-67. Equipment required to maintain the
8756A is listed in Table 1-3. Other equipment
may be substituted if it meets or exceeds the
critical specification listed in the table.
1-5

HP 5344S Specifications

General

Brand	HP
Model	5344S
Category	Measuring Instruments
Language	English