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APT FUNCTIONAL SUBSYSTEMS

Receivers

20, 27 GHzReceiver

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DACS

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Radiometers

20, 27 GHzRadiometer

Antenna 1

RF

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RF Enclosure

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a) LO drive (20, 27) RG58 w/SMA-male.

b) 70 MHz IF (20, 27) Microflex 150 w/SMA-male.

c) RF power cable, 3 conductor twisted w/4 pin molex.

d) RF control cable w/DB25 male connector.

e) RF control cable w/DB9 male connector.

f) RF temperature control cable assy (two cables)

w/DB-15 profile hybrid connector.

conduiLdrw06/01/93

Figure 3.1-2. Conduit/Cable assembly between RF and Receiver Enclosures.

Chapter 3 Page 5 1.0

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ACTS PROPAGATION TERMINAL

A2

ANTENNA

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ACTS

Feed Horn(no antenna)

APT APTPrototype Digital

IF Hardware Receiver

HostComputer

Microwave absorber was placed over thebeacon transmitter payload to reduce thebeacon signal strengths to levels compatiblewith the APT system

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