Section 9 Maintenance
9-26
(1) Calibration specification
Table 9-2-3-1 Specifications for reference oscillator
Item Specification
Frequency 10 MHz
Activation characteristics ≤±5×10
-8
(At 10minutes after power-On, references the 24 hours
after power-On)
Aging rate
≤±2×10
-8
/day
(References the 24 hours after power-On)
Temperature stability ≤±5×10
-8
(0 to 50°C, references 25°C)
(2) Setup
Connect the equipment as shown in Table 9-2-3-1. Setup the PC to enable
control of MT8820A via GPIB interface.
Frequency
standard device
MF2412B
Out
ut
Output from the signal generator
(1000 MHz )
MT8820A
PC
GP-IB
MT8820A Rear panel
Trimmer for calibration
Fig. 9-2-3-1 Setting up for reference oscillator calibration