TB 9-6625-1959-35
IDENTIFICATION AND DESCRIPTION
1. Test Instrument
Identification.
This bulletin provides instructions for the
manual was used as the prime data source in compiling these instructions. The equipment
being calibrated will be referred to as the TI (test instrument) throughout this bulletin.
a. Model Variations. None.
b. Time and Technique. The time required for this calibration is approximately 4
hours, using the dc and low frequency technique.
2. Forms,
Records, and
Reports
a.
Forms, records, and
reports required for calibration personnel at all
levels are
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).
3. Calibration
Description. TI
parameters and
performance specifications which
pertain to this calibration are listed in table 1.
Common name
Minimum use specifications
Frequency
Range: 250 kHz to 250 MHz, +50 kHz reference frequency
Amplitude
Range: 5 mV to 5.5 V p-p over 3 decade ranges and
terminated into a 50Ω load
Accuracy: (at 50 kHz reference frequency)
X1 range:
3% of indicated amplitude
X.1 range:
4% of indicated amplitude
X.01 range: 5% of indicated amplitude
suppression relative to fundamental)
At least 35 dB down
Second harmonic
At least 40 dB down
Flatness
Range: 250 kHz to 250 MHz (50 kHz reference)
Accuracy: 250 kHz to 100 MHz, 1.5%
100 to 250 MHz, 3.0%