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Anything else >> General and other topics >> AUPC ( Automatic Uplink Power Control )
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Message started by Acharya on Jun 10th, 2013 at 11:50pm

Title: AUPC ( Automatic Uplink Power Control )
Post by Acharya on Jun 10th, 2013 at 11:50pm
Dear Mr Eric,

Can i have some technical notes about AUPC.

Regards,
RA

Title: Re: AUPC ( Automatic Uplink Power Control )
Post by Eric Johnston on Jun 11th, 2013 at 6:12pm
I've written some explanation here:
https://www.satsig.net/link-budgets/uplink-power-control.htm

If anyone has more to add, please do so.

Best regards, Eric.

Title: Re: AUPC ( Automatic Uplink Power Control )
Post by USN - Retired on Jun 11th, 2013 at 6:23pm
This info is dated, but the system I used back in the 80s used Alfa Flunk at the RX terminal to control the uplink power at the TX station. Alfa Flunk is measured at the 70 MHz level, and acts as a pseudo BER. A non-satellite feedback circuit from the RX terminal to the TX terminal carried the uplink power commands. Most of the time the feedback circuit was full duplex, which permitted each terminal to automatically control the others uplink. To be clear, this adjusted power of each individual up converter - not the terminal composite signal

//greg//

Title: Re: AUPC ( Automatic Uplink Power Control )
Post by Acharya on Jun 26th, 2013 at 2:01am
Dear Mr Eric,

Thanks for the AUPC note.

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