Installation Manual Part 6

FCC ill: CDG-ARTU EXHIBIT C
MAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM
Pr'-' F2 to View Status Display
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+ VlA I8rr Tutorial :mSlA20l :
: SY8f{)tom, us Value alUch lower than ~kings on Loop-Around Teat Box. :
: a) Are the ON/OFF and Attenuator awitches in the correct po8ition? :
: Is the battery voltage greater than 6 volts? :
: b) .ove ~e Loop-Around Test Cable connection plac_t on the Ant~a. :
: c) Replace cables or C-2000 RP components one at a time to isolate the :
: faulted unit. :
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: ~t_, RSS value difference bet_en the TXRX and RX is gre.ter than 10 dB. :
: If values of the US readings bet_en the TSC (TXRX) and the Pilot (RX) :
: receivers is greater than 10 dB replace the ARTU. :
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Figure 9.1.7B. ARTU Receive Signal Strength Measurement MMTI Troubleshoot Screen.
9-10 RevB