TB 9-6625-2330-24
d. Connect REF IN/OUT to time/frequency workstation J10 input.
e. Adjust REF ADJ (TI rear panel) for a minimum time/frequency workstation indication.
g. Disconnect time/frequency workstation from TI.
8. Line Stability
a. Performance Check
(1) Connect frequency counter input A to TI RF OUTPUT.
(2) Configure frequency counter controls to measure frequency with 50 Ω input.
(3) Press TI pushbuttons as listed in (a) through (e) below:
(a) FUNCTION-CARR FREQ.
(b) DATA ENTRY-100 MHz.
(c) FUNCTION-CARR LEVEL.
(d) DATA ENTRY-0 dBm.
(e) FUNCTION-RF ON to on (red light lit).
(4) Record frequency counter indication.
(5) Vary autotransformer to voltage level indicated in first row of table 3.
Frequency counter will indicate within 100 Hz of recorded value in (4) above.
(6) Repeat (5) above for remaining voltage levels listed in table 3.
Table 3. Line Stability.
Frequency counter
Autotransformer
voltage indications
indication at 100 MHz
100 Hz
125 V ac
120 V ac
110 V ac
105 V ac
(7) Adjust autotransformer to 115 V ac.
b. Adjustments. No adjustments can be made.