
2 1. Frequency Response Adjustments
A12TP2,TP3
LOCK INDICATOR
DISABLE
/
R84 GAIN
R48
Al
R51
R2
R69
R54
R72
82
Cl
C2
Dl
R75
R60
A6All
\R78
E2
Rl
IO
RQ VE
R12 VD
R15 VC
R18
VB
R2i
GA
R86
R23 GB
R25 GC
R27 GD
R87
R29 GE
R81
GF
R89
R31
LRl
R90
R34 LR2
R37 LR3
R76 LR4
R40 LB1
R41 LB2
R42 LB3
R70 LB4
03
02
Dl
L
B
D
E
ZERO
3 -9V
5.8GHz
\R66
2GHz
A6A12
\
R64
Figure 3-90. Location of Frequency Response Adjustments
3. In the RF Section, disconnect cable 84 (gray/yellow) from
A6A12Jl
and cable 82 (gray/red) from
A6A12J2.
Remove the
cover from the A6 RF Module, and then reconnect cable 84
(gray/yellow) to
A6A12Jl
and cable 82 (gray/red) to
A6A12J2.
See Figure 3-90 for the location of the
A6A12
YTX Driver
Assembly and the A6 RF Module.
Note
The spectrum analyzer must be ON continuously (not in STANDBY)
and set to the
(2--22-j
settings for at least 30 minutes prior
to performing the following adjustment procedure to allow the
temperature and tuning of the
A6A8
YTX and associated circuitry to
fully stabilize.
4. Set the RF Section LINE switch to ON, and allow the spectrum
analyzer to warm up for at least 30 minutes.
5. Connect the power sensor to the power meter POWER REF
output, and zero and calibrate the power meter. Connect the
power meter/power sensor to the RF Section front-panel CAL
OUTPUT connector using a Type N (f) to BNC (m) adapter, and
Adjustments 3-177
Commentaires sur ces manuels