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Table 3. Frequency Accuracy.
Table 4. Output Level Continued.

Calibration Procedure For Radio Test Set, Models 2947 And 2947A And Model 2947 Page Navigation
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TB 9-6625-152-24
9. Output Level
a. Performance Check
(1) Connect measuring receiver sensor module to TI N-type output.
(2) Set TI as listed in (a) through (g) below:
(a) Press RF IN/OUT SELECT to select N-type output.
(b) Press Rx TEST key then [RF Gen].
(c) Press FREQ and set to 10.1 MHz.
(d) Press LEVEL and set to -21 dBm.
(e) Press Rx TEST, [Mod Gen], [Gen1/Gen2] until MOD1 FREQ is
highlighted, then press ON OFF key to off.
(f) Press Rx TEST, [Mod Gen], [Gen1/Gen2] until MOD2 FREQ is
highlighted, then press ON OFF key to off.
(g) Press Rx TEST, [RF Gen] then press ON OFF key to on.
(3) Configure measuring receiver for tuned RF level measurement. If measuring
receiver indication is not within limits specified in first row of table 4, perform b below.
(4) Repeat technique of (2) (a) through (d) and (3) above for TI remaining
frequencies and output levels in table 4. If measuring receiver indications are not within
limits specified in table 4, perform b below.
Table 4. Output Level.
Test instrument
Measuring receiver
Output
Indication limits
Frequency (MHz)
Level (dBm)
Min
Max
10.1
-21
-23
-19
10.1
-25
-27
-23
10.1
-30
-32
-28
10.1
-40
-42
-38
10.1
-50
-52
-48
10.1
-60
-62
-58
10.1
-70
-72
-68
10.1
-80
-82
-78
10.1
-90
-92
-88
10.1
-100
-102
-98
10.1
-110
-112
-108
10.1
-120
-122
-118
10.1
-125
-127
-123
500
-21
-23
-19
500
-25
-27
-23
500
-30
-32
-28
500
-40
-42
-38
500
-50
-52
-48
500
-60
-62
-58
500
-70
-72
-68
500
-80
-82
-78
500
-90
-92
-88
500
-100
-102
-98
9


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