TB 9-6625-2259-24
Example 2:
Lowest power meter indication is 2.9 dBm and associated frequency is 50 MHz.
Highest power meter indication is 3.5 dBm and associated frequency is 1.0 GHz.
10 dB attenuator (fixed) actual attenuation value at 50 MHz is 9.88 dB.
10 dB attenuator (fixed) actual attenuation value at 1.0 GHz is 10.02 dB.
(36) Algebraically add 10 dB attenuator (fixed) actual attenuation values to
associated power meter indications. Lowest and highest power values will be between
+12.7 and +13.3 dBm.
Example 3:
NOTE
Treat 10 dB attenuator (fixed) attenuation as a positive value.
3.10 dBm
(lowest power meter indication at 50 MHz)
9.88 dB
(actual 10 dB attenuator (fixed) - attenuation value at 50 MHz)
12.98 dBm
(lowest power value)
3.5 dBm
(highest power meter indication at 1.0 G Hz)
10.02 dB
(actual 10 dB attenuator (fixed) attenuation value at 1.0 GHz)
13.52 dBm
(highest power value)
(37) Subtract 10 dB attenuator (fixed) actual value at 2 GHz ((23) above) from 10.0
dBm. Record difference.
Example 4:
NOTE
Treat 10 dB attenuator (fixed) actual attenuation as a positive value.
10.0 dBm
(10 dB attenuator (fixed) value at 2 GHz)
10.02 dB
-0.02 dBm
power value
(39) Press F1 M3 key and set F1 M3 display to 2.000 GHz by pressing 2 with DATA
ENTRY key and then by pressing GHz/dBm/SEC DATA ENTRY key.
(40) Press F2 M6 key and set F2 M6 display to 18.000 GHz by pressing 18 with
DATA ENTRY key and then by pressing GHz/dBm/SEC DATA ENTRY key.
(41) Press LEVEL key and set LEVEL display to +10 dBm by pressing 10 with
DATA ENTRY keys and then by pressing GHz/dBm/SEC DATA ENTRY key.
(42) Adjust TRIGGER MANUAL SWEEP control for a multimeter indication equal
to value recorded in 7 h (11) above.
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