Automatic UpLink Power Control System
UpLink Power Controller (principle of operation)
‘Rain Fade’ affects both transmitted signal and Beacon
signal by a similar amount.
Product Focus;Automatic UpLink Power Control (AUPC)
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UpLink Power Controller (principle of operation)
L-Band signal
Processing(Level Detection, Comparator &
Limiter)
UpLink Chain (from Modulator)
Beacon Signal Detection
LNB SHF signal BUC
L-Band signal (or IF 70/140MHz if UpConverter fitted).
Bypass option fixed
attenuator
UPC7001 UpLink Channel Compensation
Shows DC & 10MHz pass to BUC option.
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UpLink Power Controller (internal attenuation)
• Easy to use, cost effective solution to rain fade compensation.• Internal or external Beacon Receiver.• Fail safe by-pass option.• DC & 10MHz ‘pass’ option.
Beacon Receiver Signal (L-Band/ SHF)
Processing(Level Detection, Comparator &
Limiter) UpLink Chains
Beacon Signal Detection
UpLink Power Controller (external attenuation)
Beacon Receiver Signal (L-Band/ SHF)
Beacon Signal Detection
UpLink Chains
CAN-bus Connection
• Directly interfaces to Peak equipment in the UpLink chains via CANbus to provide a simple, cost effective solution to rain fade variations, without the need for additional RF cabling.• Full RS232/485 remote control .• Ethernet options supporting SNMP ,Embedded Web-server etc.
Processing(Level Detection, Comparator &
Limiter)5
UpLink Power Controller (physical attributes)
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Up to 4 ‘fixed’ Channels in 1RU, plusmodular 10-Channel expansion system in 2RU.
UpLink Power Controller (anti-scintillation)
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Traditional rain-fade rates of
change in minutes
Scintillation rates of change
in <1s
Relative rate of change in dB
-10
10
Earth Station RF Equipment from Peak Communications Ltd.www.peakcom.co.uk