Rohde & Schwarz SME02 - Test Procedure; Display and Keyboard; Frequency Setting

Test Procedure SME
1038.6002.02 5.6 E-13
5.2 Test Procedure
The rated specifications of the generator are tested after the instrument has warmed up for at least 30
minutes and a total calibration has been carried out (c.f. Section 2.11.8, Calibration). This is the only
way to make sure that the guaranteed data are observed.
The values in the following sections are not guaranteed; only the technical data in the data sheet are
binding.
5.2.1 Display and Keyboard
Testing Display
À Switch on instrument.
The basic menu is displayed after several seconds.
À Rotate contrast control (left-hand potentiometer at the lower edge).
The contrast is varied from dark to bright.
À Rotate brightness control (right-hand potentiometer at the lower
edge)
The brightness of the background illumination is varied.
Keyboard
À Press keys and check response at the display.
5.2.2 Frequency Setting
Test equipment Frequency counter (Section 5.1, item 1)
Test principle The frequency setting is checked using a frequency counter whose
reference frequency is synchronized with the one of the SME.
Measurement
À Setting at the SME
- Test frequency unmodulated,
- Level 0 dBm
The values measured must be exact within the frame of the
counter resolution.
Test frequencies
recommended
see table 5-2
Table 5-2 shows the synthesis-dependent changeover limits. In order to fully test the function of the
instrument, we recommend measurements at these range limits.
Table 5-2a Changeover limits of the SME
Range from to
Doubler1 (SME03\06)
(SME03E)
1500.000 000 1 MHz
1500.000.000 2MHz
3000.000 000 0 MHz
2297.200 000 0 MHz
Doubler2 (SME06) 3000.000 000 1 MHz 6000.000 000 0 MHz
Synthesis octave 750.000 000 1 MHz 1500.000 000 0 MHz