R.V.R. Elettronica HC3, Manual

Page: 15 / 64

HC3 - Technical and Maintenance Manual
R.V.R. Elettronica S.r.l. (Bo) Pag. 15
2.5 REMOTE CARD
This Card mounted on the right side of the equipment in rear position,
allows to switch off the Auxiliary Out A.C. Line in case of any faulty of the
equipment.
2.6 POWER SPLITTER
The Power Splitter circuit mounted on the rear part of the equipment on
the right side, is used to splitt exciter's driving power to three amplifiers.
The circuit is realized with strip plus coaxial cables and three specific
circuits can adjust (equalize) phases on the three outputs that are used to
drive the amplifiers.
Three resistive termination placed near to the output serves to absorb any
unbalanced powers in case of faulty or performance differences of some
amplifier to prevent excessive power driving on the well functioning (well
loaded) outputs.
2.7 POWER COMBINER
The Power Combiner circuit mounted on the rear part of the equipment on
the left side, is used to combine the output powers of the two amplifiers.
The circuit is realized with suspended-substrate strip lines plus 50Ohm coaxial
cables and guarantee equal phases on the three input power ways that are
combined to obtain the antenna output power.
Three resistive terminations placed on the main cooler serve to absorb any
unbalanced powers in case of faulty or performance differences of some
amplifier.
2.8 UNBALANCING POWER CARD
This card, mounted on the rear part of the Alarms card, is used to calculate
the voltage proportional to Unbalancing Power, coming from the unbalancing
measuring section placed on the Power Coupler, to send it to Alarms card and
then to the analog meter.