Operation Manual Part 3

Digital Liquid Cooled UHF
TV Equipment
Description / Test points / Location of units
9946 V1
45321648.01 104 A E
preliminary
113 / 131
Numéro / Number Doc. Rev. Lan
g
u.
16/06/2006
Pa
g
e
Information contained is this document is confidential, is THOMSON property and cannot be disclosed in whatever form without prior written authorization of THOMSON.
The ratio of total power to transmitted power (ignoring system losses) is a function of the form : n
2
/ (n-
m)
2
.
where «n» is the total of amplifiers and «m» is the number of faulty amplifiers.
Input 1
R.F. Signal
a
b
c
I
Input « n »
R.F. Signal
a
b
c
I
Input 2
R.F. Signal
a
b
c
I
Output
II
A
B
Combiner
3dB Coupler
3dB Coupler
98/331 (e)
Figure : FICS
3.14.4. Protection and surveillance devices
The RF coupling system does not need any particular internal protection or surveillance devices.