TB 9-6625-2297-24
IDENTIFICATION AND DESCRIPTION
1. Test Instrument Identification.
This bulletin provides instructions for the
calibration of Power Meter, Agilent, Model 437B. The manufacturer's 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 2
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. 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.
Table 1. Calibration Description
Test instrument
parameters
Performance specifications
Zero set (digital set
0.5% FS (Most sensitive range. Decrease percentage factor of 10 for each higher
ability of zero)
range 1 count).
3 W to 100 mW
Instrument accuracy
Range:
single channel mode
Accuracy:1 0.5% or 0.2 dB (within same calibration range)
Reference frequency
Frequency: 50 MHz
Accuracy: 0.5 MHz
Power reference
Range:
1 mW
Accuracy: 1.2%
Frequency: 50 MHz
includes sensor linearity. When operating in ranges 4 or 5 add the corresponding sensor power
linearity percentage.
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Sets AN/GSM-286, AN/GSM-287 or AN/GSM-705. Alternate items may be used
by the calibrating activity. The items selected must be verified to perform satisfactorily
prior to use and must bear evidence of current calibration. The equipment must meet or
