ACCEPTANCE TESTING
6-8
Carrier frequency accuracy
Specification
Frequency range:
10 kHz to 1.35 GHz (2050T)
10 kHz to 2.7 GHz (2051T)
10 kHz to 5.4 GHz (2052T)
Accuracy:
Determined by the frequency standard accuracy
Resolution:
0.1 Hz
Test equipment
Description Minimum
specification Example
Frequency counter
10 kHz to 5.4 GHz
ETP 535B or
Aeroflex 2440
Test procedures
C0217
RF OUTPUT
50
Ω
Load
UUT
➤
2440
Counter
A INPUT
!
!
Fig. 6-3 Carrier frequency accuracy test set-up
(1) Connect the test equipment as shown in Fig. 6-3.
(2) Set the UUT to
[RF Level]
0 dBm
[Carrier Freq.]
10 kHz.
(3) Referring to Table 6-4, check that the carrier frequencies can be selected correctly and are
within specification. It will be necessary to disconnect the 50
Ω
load and reconnect the UUT
RF OUTPUT to the B input and C input where indicated.
Table 6-4 Carrier frequencies
Carrier frequencies (Hz)
(2050T/1T/2T)
(2052T)
A Input
B Input
805,306,368.0 2,700,001,000.0
952,945,868.8
5,400,000,000.0
10,000.0 168,749,999.9 959,656,755.2
4,226,750.0 337,499,999.9 1,134,139,801.6
8,443,500.0 572,662,306.1 1,140,850,688.0
12,660,250.0
1,145,324,612.2
16,887,000.0
C Input
1,348,888,166.4
21,093,749.9
21,039,750.0
674,999,999.9
(2051T/2T)
42,187,499.9 677,799,526.4 1,350,001,000.0
84,374,999.9 798,595,481.6 2,700,000,000.0