TB 9-6625-2059-35
a. Performance Check
(1) Connect frequency counter to 10 MHz REF OUT.
(2) Adjust REF CAL (front panel) until frequency counter indicates between
9,999,995 and 10,000,005 Hz. If indication cannot be obtained, perform b (1) and (2) below.
(3) Connect TRANS-RCVR output to frequency counter.
(4) Set FREQUENCY MHz switches to 111 111 1. Frequency counter will indicate
between 111,111,044 and 111,111,156 Hz.
(5) Repeat technique of (4) above for settings and indications listed in table 4.
Test instrument
Frequency counter indications
FREQUENCY MHz
(Hz)
switch settings
Min
Max
222 222 2
222,222,088
222,222,311
333 333 3
333,333,133
333,333,467
444 444 4
444,444,177
444,444,622
555 555 5
555,555,222
555,555,778
666 666 6
666,666,266
666,666,933
777 777 7
777,777,311
777,778,089
888 888 8
888,888,355
888,889,244
999 999 9
999,999,400
1,000,000,400
010 000 0
9,999,995
10,000,005
050 000 0
49,999,975
50,000,025
090 000 0
89,999,955
90,000,045
001 000 0
999,995
1,000,005
005 000 0
4,999,995
5,000,005
009 000 0
8,999,995
9,000,005
b. Adjustments
(1) Adjust REF CAL (front panel) to its mechanical center.
(2) Adjust TCXO (fig. 1) until frequency counter indicates 10,000,000 Hz.