Re: [Drip] ADSB(Internet mail)

["shuaiizhao(Shuai Zhao)" <[e-mail]>]

It is really hard to foresee the future.

Personally, I don’t think FAA  (in NA) will let the air-taxi going into an airport for taking or landing. But we never know. That is also the reason I think the Crowd source draft has much more weight than everyone else thinks. It might be a good alternative compared with ADS-B since those UA operations might not be as critical as GA.


Best,
Shuai Zhao


From: Robert Moskowitz <[e-mail]>
Date: Thursday, July 30, 2020 at 03:48
To: "shuaiizhao(Shuai Zhao)" <[e-mail]>
Cc: "[e-mail]" <[e-mail]>, "Stuart W. Card" <[e-mail]>
Subject: Re: [Drip] ADSB(Internet mail)

Shuai,

That was an 'or' question.  My bad.

I don't see urban delivery UA, even rural (I have seen the UPS demo) using ADSB.  I even question air-taxis, other than if they want to make runs to the airport, they will probably require it.

Local delivery UA are already so power starved, severely impacting their range (why UPS has them serviced from their trucks).
On 7/30/20 6:43 AM, shuaiizhao(Shuai Zhao) wrote:
Yes, as well as drones with military purpose,  that’s my understanding.
-SZ iPhone
Please forgive any typos



On Jul 30, 2020, at 03:23, Robert Moskowitz <[e-mail]><mailto:[e-mail]> wrote:
By "commercial drones" do you mean what a delivery service would use or a long-haul freight (Rhaegal) and air-taxis (UAM)?
On 7/30/20 5:49 AM, shuaiizhao(Shuai Zhao) wrote:
Just to echo Stu on the ADSB, AFAIK, ADSB will  not be feasible for most of the drones mostly due to SwaP, commercial drones might be exception.


Best,
Shuai Zhao


From: Tm-rid <[e-mail]><mailto:[e-mail]> on behalf of "Stuart W. Card" <[e-mail]><mailto:[e-mail]>
Date: Wednesday, July 29, 2020 at 19:46
To: "[e-mail]"<mailto:[e-mail]> <[e-mail]><mailto:[e-mail]>
Subject: [Drip] ADSB (was: Review of draft-drip-arch-02 w.r.t. RFC6973, RFC8280 and other)(Internet mail)

Sorry for the slow reply.

ADS-B is gradually being mandated for essentially all manned aircraft.

ADSB-In and ADSB-Out are mandated for airliners: -In gives their pilots
some Situational Awareness (SA) of other aircraft; -Out gives other
pilots SA of the airliners.

"ADSB-Out" is mandated even for small general aviation aircraft: it does
not directly benefit the pilots of those aircraft; but by providing SA
to others, it indirectly benefits all.

ADSB is _not_ going to be deployed on large numbers of small UAS as it
would overwhelm the limited bandwidth available at those lower radio
frequencies (which propagate long ranges). In fact, it is expected to be
explicitly prohibited in the US per the FAA NPRM; I suspect most of the
rest of the world will do likewise.

ADSB is also altogether insecure.

On 7/9/2020 3:02 AM, Alexandre Petrescu wrote:
...
They call it "ADS-B Receivers" (Automatic Dependent Surveillance -
Broadcast).

I wouuld like to ask if there is a packet dump available showing such
presence data form planes?  Maybe wireshark already supports it, maybe
it even dissects it...

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Robert Moskowitz
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--
Robert Moskowitz
Owner
HTT Consulting
C:      248-219-2059
F:      248-968-2824
E:      [e-mail]<mailto:[e-mail]>

There's no limit to what can be accomplished if it doesn't matter who gets the credit