TNAG-2109-FCO40-3008-Outer-Space-Act-1986-extension-to-Hong-Kong-1990 — Page 130

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8.4

to record iii) Ability

and receive recorder will be demonstrated.

Command

time

from the tape

the The commanding software functions will provide for

as well as screening of critical and forbidden commands transmission, verification, and execution of commands in will be thoroughly demonstrated during

various subsystem

modes

and factory tests

on-site

acceptance

tests.

The will be conducted during the site

8.5

and executed through the

following

acceptance tests:

i)

Selected

computer-generated

and

manually

synchronous and

commands non-synchronous

entered will be

transmitted, verified

following path:

Realtime Computer

Frame Sync

Synchronous Command Gen.

T&C Simulator

Telemetry Receiver

PSK Demodulator Bit Sync

Command transmission and execution are visually confirmed by the displays on the T&C Stimulator and/or the Realtime Computer terminal.

ii)

Command uplink system through the HPA will be tested computer-generated continuous command tone at the spacecraft frequency (DISH or OMNI). The loading, transmission, and execution of commands will be observed at the front panel of the Synchronous Command Generator. The presence of the modulated command frequency at the output of the IPA will be observed. The FM Modulator in the uplink path will be checked for correct modulation index while the command tone is being generated.

Telemetry

8.5.1 PCM Data

The telemetry processing software functions which provide for decommutation, conversion, and display of telemetry data from a given encoder will be thoroughly demonstrated during subsystem Factory and on-site acceptance tests. following test will be conducted during the Site Acceptance Tests:

8.5.2 FM Data

received.

The

Frequency modulated (FM) data from the T&C Simulator will The Receiver lock indicator and the sun pulse and Master Index Pulse lights on the FM Detector will

be

25

: