TB 96625-2044-35
SECTION I
IDENTIFICATION AND DESCRIPTION
calibration personnel at all levels are prescribed by TB
1.
Test Instrument Identification. This bulletin
750-25-1.
DA Form 2416 must be annotated in
provides instructions for the calibration of Tracking
accordance with TB 750-25-1 for each calibration
Generator-Counter, Hewlett-Packard Model 8443A.
performed.
The manufacturer's manual was used as the prime data
b. Adjustments to be reported on DA Form 2416
source in compiling these instructions. The equipment
are designated (R) at the end of the sentence in which
being calibrated will be referred to as the TI (test
they appear. When adjustments are in tables, the (R)
instrument) throughout this bulletin.
follows the designated adjustment. Report only those
a. Model Variations. None.
adjustments made and designated with (R).
b. Time and Technique. The time required for this
3.
Calibration Description. TI parameters and
calibration is approximately 4 hours, using the dc and low
performance specifications which pertain to this
2.
DA Form 2416 (Calibration Data Card)
a. Forms, records, and reports required for
Table 1. Calibration Description
Test instrument parameters
Performance specifications
Time base
Stability: < 3 parts in 10-9 per day
Amplitude
Range: <-120 dBm to +10 dBm in 10 and
1 dB steps
Accuracy: +0.2 dB, 10 dB steps
+0.1 dB, 1 dB steps
Output flatness
+0.5 dB from 100 kHz to 110 MHz'
External input sensitivity
50 ohms from 10 kHz to 120 MHz
-10 dBm minimum, +25 dBm maximum
1
Procedure limitation: 1 to 110 MHz.
SECTION II
EQUIPMENT REQUIREMENTS
4.
Equipment Required.
Table 2 identifies the
a four-to-one ratio between the standard and TI.
specific equipment to be used in this calibration
procedure. This equipment is issued with Secondary
5.
Accessories Required. The accessories listed
Transfer Calibration Standards Set AN/GSM-287.
Alternate items may be used by the calibrating activity
when the equipment listed in table 2 is not available.
The items selected must be verified to perform
necessary, these items may be substituted by equivalent
satisfactorily prior to use and must bear evidence of
items, unless specifically prohibited.
current calibration. The equipment must meet or exceed
the
minimum
use
specifications
2
