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7.2.9

The control of output level shall be cabinet.

Output VSWR

on

the amplifier

No damage to the HPA Subsystem shall occur when operating into a short circuit.

Provision shall be made to inhibit the RF output during to avoid damaging the combining waveguide switching

network.

Safety Personnel

7.2.10

RF leakage

components

cabinet HPA X-Ray

or

associated waveguide

shall radiation

not exceed

from and recommended safety levels.

Safety interlocks shall be provided to prevent exposure of personnel to hazardous voltages and to discharge high voltage capacitors when cabinet enclosures are opened.

7.2.11 Monitor Ports

7.2.12

7.2.13

7.2.

7.3

14

Monitor ports at the up-converter output, IPA output, and HPA output shall be used for measuring the power levels,

transmit

appropriate.

or

spectrum

as

The HPA

power output shall be remotely displayed to the Earth Station operator. All test monitor couplers should be equipped with connectors capable of withstanding rugged service.

RF Switching Network

The RF

as

all equipment RF Switching Network is defined necessary to combine and switch the HPA subsystem outputs into the antenna feed

The switching transmit port. network shall be capable of command, ranging and wide band communication transmission.

Switching Time

The maximum transfer time from the moment of motor power any control to the waveguide switches from application to function to the completion of switching shall be less than 100 ms including bounce.

Insertion Loss

The losses in the Combiner shall be kept to consistent with the EIRP requirements.

Downlink Subsystem

a minimum

The Contractor shall provide a downlink subsystem on the SCF antenna to allow reception of telemetry from the satellite, and two additional monitor ports.

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