TB 9-6625-2071-35
IDENTIFICATION AND DESCRIPTION
This bulletin provides instructions for the
calibration of Digital Electronic Counter, AN/USM-459 (TS-3662/U) and Universal Counter,
Hewlett-Packard, Models 5328A( ) and 5328AF096. TM 11-6625-2941-14&P and the
manufacturers' manuals were used as the prime data sources in compiling these
instructions. The equipment being calibrated will be referred to as the TI (test instrument)
throughout this bulletin.
a. Model Variations
(1) Model 5328A may have the following options:
010
Oven Controlled Crystal Oscillator
011
IEEE-488 Interface
021
High Performance DVM
030
Channel C Frequency Measurement to 512 MHz
041
Programmable A and B Inputs
H60
Rear A and B Inputs
(2) Models 5328AF096, 5328A/H99, and 5328AMOD are equivalent to model 5328A
w/options 010, 011, 030, and 041.
(3) Models 5328AF096, 5328A/H99, and 5328AMOD are alike for calibration
purposes.
b. Time and Technique. The time required for this calibration is approximately 2
hours, using the dc and low frequency technique.
prescribed by TB 750-25.
b. Adjustments to be reported are designated (R) at the end of the sentence in which
they appear. When adjustments are in tables, the (R) follows the designated adjustment.
Report only those adjustments made and designated with (R).
pertain to this calibration are listed in table 1.
Test instrument parameters
Performance specifications
Time base stability:
Frequency: 10 MHz
Aging rate (after 24 hr warm-up): <5 X 10-10/24 hours
Option 010, AN/USM-459, and 5328AF096
Line voltage stability (for 10% variation): <5 X 10-9
