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'4.
during the rest of this test.
Connect the AC Calibrator to the $20 dH amplifier input.
Set the AC Calibrator to 20 Hz.
Record the voltage.
From Table 4-2 locate the horizontal voltage line closest to the recorded voltage reading. Use
this voltage line (see example).
EXAMPLE:
6 .
7.
(frequency under test) identify the allowable voltage range. Verify that the +20 dR amplifier output
is in this range.
Repeat Steps :1 t o 5 for each frequency column of Table 4-2 (20 Hz through 85 kHz).
(in mV)
6 5 0
72.9 to 57 9
73 4 to 58 3
6 5 4
65.8
73 8 to 58 6
6 6 2
74.3 to 59.0
6 6 6
74 7 to 59 4
6 7 0
75 2 to 59 7
6 7 4
75 6 to 60 1
6 7 8
7 6 1 t o 6 0 4
76 5 to 60 8
6 8 2
6 8 6
77 0 to 61 1
6 9 . 0
774 to 61.5
77 9 to 61 9
6 9 4
69.8
78 3 to 62 2
70.2
78 8 to 62 6
7 0 6
79 2 to 62 9
7 1 0
79 7 to 63 3
7 1 4
80 1 to 63 6
7 1 8
80 6 to 64 0
7 2 2
8 1 O t o 6 4 3
7 2 6
8 1 5 t o 6 4 7
7 3 0
81 9 to 65 1
7 3 4
82 4 to 65 4
7 3 8
82.8 to 65 8
83 3 to 66 1
74.2
7 4 6
83 7 to 66 5
PERFORMANCE TESTS
If the Voltmeter reading is 71.0 mV, locate the 71.0 mV line from the V,,,,t
column of Table 4-2. Locate the 20 Hz frequency column. The allowable
voltage reading, when the AC Calibrator is substituted by the 4935A
transmitter, is 79.7 mV to 63.S mV.
Table 4-2. Transmitter Flatness at -40 dBm
68 9 to 61.4 66 5 to 63 5
69 3 to 61.7 66 9 to 63 9
69
7
to
62.1
67
3
70.1
to
62
5
67.7
70 5 to 62 9 68 2 to 65 1
71
0
to
63
3
68
6
71.4
to
63.6
69
0
71
8
to
64.0
69
4
69
8
to
72.7
to
64.8
70.2
to
73
1
to
65.1
70.6
73.5
to
65
5
71
0
73.9
to
65.9
71
4
74.4
to
66.3
71.8
74.8
to
66.7
72
2
75
2
to
67.0
72.7
75 6 to 67 4 73 1 to 69 8
76
1
to
67
8
73.5
76
5
to
68
2
73.9
76 9 to 68 5 74 3 to 70 9
77
3
to
68
9
74.7
77
7
to
69
3
75.1
78.2
to
69.7
75.5
78.6
to
70
0
75.9
79.0
to
70.4
76
3
68 9 to 61 4
69 7 to 62 1
to
64
3
to
64
7
70 1 to 62 5
70 5 to 62.9
to
65.5
71 0 to 63 3
to
65.9
71 4 to 63 6
to
66
3
71 8 to 64.0
66
6
67
0
72 7 to 64 8
to
67
4
73 1 to 65.1
to
67
8
73 5 to 65.5
to
68.2
73 9 to 65.9
to
68.6
74 4 to 66 3
to
69
0
74 8 to 66 7
to
69
4
75 2 to 67 0
75.6 to 67 4
to
70.2
76 1 to 67.8
to
70.6
76 5 to 68.2
76 9 to 68 5
to
71
3
77 3 to 68 9
to
71
7
77 7 to 69 3
to
72.1
78 2 to 69.7
to
72.5
78 6 to 70.0
to
72
9
Performance Tests
68.9 t o 6 1 4
69.3 to 61.7
69.7 to 62.1
70.1 t o 62.5
7 0 5 to 6 2 9
7 1 0 to 63.3
7 1 4 to 63.6
7 1 8 to 64.0
72.2 to 64.4
72.7 to 6 4 8
73.1 to 65 1
73.5 to 65.5
73.9 to 65.9
74.4 to 66.3
74.8 to 6 6 7
75.2 to 6 7 . 0
75.6 to 67.4
76.1 to 6 7 8
76.5 to 68.2
7 6 9 to 68.5
77.3 to 68.9
77.7 to 69.3
78.2 t o 69.7
78.6 to 70.0
79.0 to 70.4
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Troubleshooting
