[amsat-bb] AO-7 broadband noise in passband.

Joe nss at mwt.net
Thu Jun 1 12:34:52 UTC 2017

Which mode are you seeing the humps?

The Original Rolling Ball Clock
Idle Tyme
On 5/31/2017 11:02 PM, Bill Bordy, NJ1H wrote:
> I have been observing AO-7 quite a bit lately and I have noticed three 
> broadband humps in my panadapter display. I also see these in W5RKN 
> panadapter captures at:
> https://drive.google.com/file/d/0B-Jez46MB5RaMzV0RlhmWHNWcjg/view?usp=sharing 
> This confirms these are being transmitted from AO-7. They disappear 
> immediately after the mode switch in his captures. I also observed 
> this today at 31 MAY 2017 about 19:03 UTC during a mode switch.
> Does anyone have an explanation of why these occur? The obvious might 
> be some sort of signals on the uplink. Has anyone identified if these 
> signals occur throughout the world or just in specific areas. If you 
> look at these, a large part of AO-7's power output is being used to 
> transmit the broadband humps.
> 73,
> Bill
> NJ1H
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