TB 9-6625-2322-24
IDENTIFICATION AND DESCRIPTION
1. Test Instrument Identification.
This bulletin provides instructions for the
calibration of Signal Generator, Wiltron, Model 68347M. 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 5
hours, using the dc and low frequency and microwave techniques.
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.
Table 1. Calibration Description
Test instrument
parameters
Perform specifications
Range: 10 MHz to 18 GHz
Accuracy: < 5 parts in 10-10
Time Base Stability: < 5 parts in 10-10 per day
Harmonics
<-30 dBc
10 MHz to 50 MHz
<-40 dBc
> 50 MHz to 2 GHz
<-60 dBc
> 2 GHz to 18 GHz
Non-harmonic
<-40 dBc
10 MHz to 2 GHz
<-60 dBc
> 2 GHz to 18 GHz
RF output
Level: 11 dBm
Accuracy:
1 dB
2 dB for a 11 dB output level
Flatness: 10.0 MHz to 50.0 MHz
Accuracy:
0.8 dB for a 11 dB output level
50 MHz to 18 GHz
1 dB
1
Accuracy:
Attenuator: 0 to -122 dB
See footnotes at end of table.
