TB 9-6625-2137-35
NOTE
The offset value should be approximately +9.03 dBm based on
the formula: Offset = 10 log (600 Ω/75 Ω) where 600 Ω is the
calibrator dBm reference and 75 Ω is the TI dBm reference.
(7) With calibrator frequency at 20 kHz, set dBm output as listed in table 5. TI will
indicate within the specified limits.
Calibrator
Test instrument indication
output
(dBm)
(dBm)
Min
Max
-1.0
-00.80
-01.20
-2.0
-01.80
-02.20
-3.0
-02.80
-03.20
-4.0
-03.80
-04.20
-5.0
-04.80
-05.20
-6.0
-05.80
-06.20
-7.0
-06.80
-07.20
-8.0
-07.80
-08.20
-9.0
-08.80
-09.20
-10
-09.80
-10.20
-20
-19.80
-20.20
-30
-29.80
-30.20
(8) Press TI MEASUREMENT/ENTRY [OFFSET] pushbutton (to off); then press
ENTRY [FREQ] [1] and [kHz] pushbuttons.
(9) Set calibrator for a .273861 V, 1.0 kHz output. TI will indicate 00.00 (0.4)
dBm.
(10) Set calibrator frequency to 200 Hz and set TI for a carrier frequency of 200 Hz
by pressing ENTRY [FREQ] [2] [0] [0] and [Hz] pushbuttons. TI will indicate 00.00
(0.4) dBm.
(11) Repeat technique of (10) above for 10 and 15 kHz. TI will indicate 00.00 (0.4)
dBm.
NOTE
In the following checks the TI bandwidth may be changed to
either 400 Hz or 3100 Hz. However, if 20 Hz bandwidth is
desired, TI carrier frequency can be fine tuned by utilizing TI
COUNTER and FREQUENCY TUNE functions.
(12) Repeat technique of (10) above for 25, 100, and 500 kHz, and 1.0 MHz. TI will
indicate 00.00 (0.2) dBm.
(13) Disconnect calibrator OUTPUT from TI.
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