ACCEPTANCE TESTING
7-32
External frequency standard input
Specification
Input levels:
Requires an input of 220 mV RMS to 1.8 V RMS into 1 k
Ω
Input frequencies:
1 MHz or 10 MHz
Test equipment
Description Minimum specification Example
Signal generator 220 mV to 1.8 V RMS, 1 MHz to 10 MHz Aeroflex 2041 or
2030
Test procedure
UUT
C2372
FREQ STD
IN-OUT
RF OUTPUT
Signal generator
Fig. 7-16 External standard test set-up.
(1) Connect the test equipment as shown in Fig. 7-16.
(2) On the UUT set:
[MENU]
Select Frequency/Sweep
Using the [NEXT] key, select Frequency Standard
Select 2 (to select Ext 1 MHz indirect)
(3) Set the signal generator to RF level 220 mV EMF, carrier frequency 1 MHz.
(4) Using Table 7-44, check that no external standard error messages are displayed on the UUT.
(5)
Set the signal generator to 1.8 V EMF and repeat (4).
(6) On the UUT select 3 (to select Ext 10 MHz indirect).
(7) Set the signal generator to carrier frequency 10 MHz and repeat (4).
(8) Set the signal generator to 220 mV and repeat (4).
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