TB 9-6625-2296-24
(2) Connect frequency counter C input to TI T/R IN/OUT.
(3) Press key sequence listed in (a) through (h) below:
(a) MODE RF GEN ......................
RF Gen Display
(b) SETUP .....................................
Gen Menu
(c) DATA ENTRY 5 ......................
RF Gen Setup
(d) DATA ENTRY 2 ......................
RF Gen Level
(e) DATA ENTRY 0 ENTER .......
0 dBm
(f) DATA ENTRY 1 ......................
RF Gen Freq
(g) DATA ENTRY 9 0 0 M ...........
900 MHz
(h) Ret (F5) ....................................
Return
NOTE
When performing the following softcal adjustment the fine
adjustment range maybe exceeded. If this occurs the VXCO
will need to be manually adjusted. If adjustment range is <0 or
>4095, set Select Attn field to 2048 then remove the screw on
top of the 10 Mhz Frequency Standard (which is located
towards the top/back of the TI next to the Power Supply) and
adjust the coarse frequency adjustment to 900 Mhz. The
softcal adjustment may now be performed.
Also, before
performing the preceding adjustment, the TI should be
temperature stable for at least 2 hours.
(4) Press key sequence listed in (a) through (h) below:
(a) SETUP .....................................
Gen Menu
(b) AUX (F6) ..................................
Auxiliary Functions Menu
(c) DATA ENTRY ENTER ..........
Access Calibration Menu
(d) FIELD SELECT .....................
Select 12. VCXO Calibration
(e) DATA SCROLL arrow............
to move cursor to least significant digit
(f) DATA SCROLL arrow............
to adjust for 900 MHz on frequency counter
(g) DATA ENTRY ENTER ..........
to enter new frequency calibration factor
(h) Ret (F5) ....................................
Return
(5) Press MODE RF GEN key (RF GEN Display), when prompted for backup data
press SHIFT and Y keys (Backup Cal Data ? y/n).
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