Operating instructions

ACCEPTANCE TESTING
5-24 46882-311D
(14) Refer to Results table 5-39 on page 5-43. Select the Oscilloscope on the UUT. Set a
timebase of 500
µ
s/div and a vertical scale of 10%/div.
(15) Set the RF signal generator to provide 60% AM, adjusting this level until the demodulated
signal on the display occupies the full six divisions. Check that the modulation indicated on
the external Modulation meter is 60%
±
10%.
(16) Remove the splitter and Modulation meter and connect the RF signal generator directly to the
UUT BNC input.
(17) Refer to Results table 5-40 on page 5-43. Set the RF signal generator to provide a signal of
100 MHz at 6 dBm with 30% depth at 1 kHz modulation rate.
(18) On the UUT, switch the oscilloscope off by selecting bar chart then select distortion
measurement ON.
(19) Check that the distortion reading on the UUT indicates less than 2%
RF frequency meter
Specification
Frequency range: 100 kHz to 1.05 GHz
Resolution: 1 Hz or 10 Hz selectable
Accuracy As frequency standard ± resolution
Sensitivity autotuned 5 mW (N-type), 0.05 mW (antenna port)
Sensitivity manual tuned −34 dBm (N-type), −60 dBm (antenna port)
Test equipment
Description Minimum specification Example
RF signal
generator
100 kHz to 1.05 GHz IFR 2965 or
IFR 2041
RF power meter ±0.1 dB from 10 MHz to 1 GHz IFR 6960/A/B +
6920 sensor
C2593
ANTENNA
INPUT
EXTERNAL
STANDARD
OUTPUT
UUT
Signal generator
Fig. 5-17 RF frequency meter