 |
|||
|
|
|||
| ||||||||||
|
|  MIL-T-48621A (AR)
3.2.1 Subassemblies. The Noise Tester consists of seventeen
major subassemblies which, when assembled into the Panel Assembly
and Chassis, constitute the complete unit. Each subassembly is a
replaceable part, and easily installed once the Noise Tester has
been removed from its case. Troubleshooting and Self Test
operations will isolate a fault to this subassembly level,
` permitting substitution/repair to be made at the Direct Support
level of maintenance. The noise tester shall meet the requirements
of the following drawings prior to find acceptance:
Functional
Drawing Number
Group Code
chassis Assembly
11822734
lAIAl
RF Modulator/MIA
ll822701
RF Detector/MIA
11822702
lAlA2
Low Noise Amplifier
11822704
1A1A3
1A1A4
Post Amp & RMS Detector
11822705
lAlA5
LP Filter - 2 MHz
11822706
lAlA6
HP Fi1ter - 750 KHz
11822708
lAlA7
HP Filter - 2500 Hz
11822709
lAlA8
HP Filter - 600 Hz
l1822711
1A1A9
11822713
LP Filter - 750 KHz
lAIAlO
LP Filter - 2500 Hz
11822738
lAIAll
Video Amplifier
11822714
lA1A12
DC Filter/Regulators
11822712
lA1Al3
DC Input Filter
11822737
Self Test Circuit
lA1Al4
11822710
IA1A15
Terminal Board
11822707
lAlA16
Reference Oscillator
11822703
1A1Al7
Oper/Test Switch Assy
11822716
The Interconnection Diagram, Drawing 11822740, shows the final
configuration of the above subassemblies, as they function in the
complete noise tester.
3.2.1.1 Chassis assembly (1A1). The front panel of the.Noise
Tester shall consist of an etched 1/8 inch thick anodized and
painted aluminum plate, with appropriate mounting holes for the
Meter, the Cavity, the MODE Switch, the OPER/TEST Switch, all input
and output connectors, ON/OFF Switch, and Fuze.
Handles are mounted
to the panel front, on either side. All installation and dimensions
and specifications shall conform to Drawing 11822733.
3.2.1.2 RF modulator/MIA (lAlAl). The RF Modulator/MIA is a
microwave integrated assembly consisting of an array of isolators,
couplers, samplers, and attenuators, Interconnected with strip-type
transmission line, which supply the reference level necessary for
unit calibration. All dimensions and specifications shall conform
to Drawing 11822701.
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals