TB 9-6625-2137-24
Calibrator
Test instrument indication (dBm)
output
Min
Max
0.273861 V
-00.20
+00.20
0.866025 V
+09.80
+10.20
1
2.738613 V
+19.80
+20.20
V2
2.73861
-39.80
-40.20
0.866025 V
-49.80
-50.20
0.273861 V
-59.80
-60.20
86.6025
mV
-69.80
-70.20
27.3861
mV
-79.80
-80.20
3
86.6025
mV
-89.25
-90.75
27.3861
mV
-99.25
-100.75
After obtaining TI indication press ENTRY [RDNG OFFSET] pushbuttons to store
1
+20 dBm value.
2 Install AC voltage divider. (Press TI AVE pushbutton if required to stabilize indications).
3Press MEASUREMENT ENTRY [OFFSET] pushbuttons to offset TI indication by +20 dBm.
ENTRY
[RDNG
OFFSET]
(6) Press
TI
pushbutton;
then
press
MEASUREMENT/ENTRY [OFFSET] pushbutton.
NOTE
The offset value should be approximately +9.03 dBm based on
the formula: Offset = 10 log (600 /75 ) where 600
is the
calibrator dBm reference and 75 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.
Test instrument indication
Calibrator
(dBm)
output
(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.
12