[Ground-station] Brazilian RF pirates on old Military GEO comms sats.

[Michelle Thompson]

This is one of the biggest reasons our designs are regenerative repeaters
with authentication and (optional) authorization.

Background info is in the repo, but the essential mechanism is what LotW
uses combined with white and black lists. Requires a database in the
payload and enough horsepower to afford the overhead.

Fortunately, it’s well trod ground. It would be even better with a working
authentication/authorization demo, but we just got a good channelizer
working. We are much closer to a working end to end demo than we were just
a few weeks ago.

*Enabling legacy traffic through the aggregator is a special case. The
aggregated traffic is tagged, but the individual traffic channels (FM hts,
p25, d-star) would not necessarily be individually authenticated.

-mdt

On Mon, Aug 19, 2019 at 07:02 John Klingelhoeffer via Ground-Station
<ground-station at lists.openresearch.institute> wrote:

> Unless we configure an appropriate authentication system, I am afraid we
> will suffer a similar fate.  So much for open transponders.
>
> On Sun, Aug 18, 2019 at 1:07 PM KC9SGV via Ground-Station
> <ground-station at lists.openresearch.institute> wrote:
>
>> I agree and understand that.
>> So let us concentrate on getting our very own, very legal ham GEO sat up
>> for Region 2 ASAP.
>> Hopefully these old 1970's technology military comms sats are not
>> completely abandoned by the various Western militaries.
>> For fun, revisit the movie "Space Cowboys" with Clint Eastwood now on
>> Netflix.
>> Somewhat related.
>>
>> Bernard,
>> KC9SGV
>>
>>
>> Sent from my iPad
>>
>> On Aug 18, 2019, at 12:16 PM, Timestep <help at time-step.com> wrote:
>>
>> It's easy world wide communication.  However the USA Government will
>> track you down...........
>>
>> Regards
>>
>> Dave  G 4IUG
>>
>> --
-Michelle W5NYV

"Potestatem obscuri lateris nescis."
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