Section 1 - Introduction (UHF Digital TV Transmitters)
E-Compact - Air Cooling - ATSC - High Power
Manual Rev. 0.0 - April 2016
1-17
1.4.5.5 Power Combiner
This module is a passive RF combiner N doors constructed with hybrid couplers, which is a
combination of N: 1
(*5)
from the output of the N power drawers, thus obtaining the final transmitter
power.
Figure 1-10 - Combiner
(UHF Hybrid Coupler - HC40C model -
used in the EC702HP transmitter)
1.4.5.6 Loads Bank
It is a drawer where loads of unbalance of the power combiner are packed, there are different
models according to the number of loads.
There are five models of load bank of drawers:
056402 - MOD GV 40041 DL0K5W EC702HP
056395 - MOD GV 40040 DL1K0W EC703HP
055356 - MOD GV 40027 DL1K9W EC704HP
059323 - MOD GV 40082 DL4K3W EC706HP
056402 - MOD GV 40081 DL5K1W EC708HP
(
*
5)
Note:
N represents the number of transmitter drawers.
Figure 1-11 -
Loads Drawer (Fans
accessible through front panel).
