Chapter 2 85
Adjustment Procedures
6. Sampling Oscillator Adjustment
2. Press PRESET on the HP 8560E/EC and set the controls as follows:
Center frequency .......................................................2126MHz
Span ........................ ...........................................................0Hz
3. Set the HP 3456A controls as follows:
Function ...................................................................DCVOLTS
Range .......... .........................................................10V,MANUAL
Sampling Oscillator Adjustment
1. Connect the negative DVM test lead to A15J200 pin 6. Connect the
positive DVM lead to A15J200 pin 13.
2. Adjust A15C210 VCO RANGE for a DVM reading of 5.05 V ±0.05 V.
Figure 2-9 TAM Connector Pin Locations
Sampler Match Adjustment
1. Connect the negative DVM test lead to A15J400 pin 6, and the
positive DVM test lead to A15J400 pin 1.
2. Press FREQUENCY and set the HP 8560E/EC center frequency to
2302.3 MHz. This sets the sampling oscillator to 291.667 MHz.
3. Adjust A15C100 SMPL MATCH to peak the voltage displayed on the
DVM.
4. Record the displayed voltage in Table 2-11 on page 86 as the
displayed voltage for the sampling oscillator frequency of 291.667
MHz.
5. Press
FREQUENCY on the HP 8560E/EC. Use the keypad to set the
spectrum analyzer center frequency to the frequencies listed in
Table 11 on page 86. At each listed frequency, record the displayed
voltage in the table.
To Next Page
Loading...
Need help?
General
