Today's Message Index:
----------------------
0. 10:57 AM - Reminder (Matt Dralle)
1. 06:12 AM - Re: Stratux Build (rampil)
2. 08:36 AM - Re: Re: Stratux Build (Kelly McMullen)
3. 09:12 AM - Re: Re: Stratux Build (Dj Merrill)
4. 11:41 AM - Re: Re: Stratux Build (Bill Bradburry)
5. 01:29 PM - Re: Re: Stratux Build (Bill Maxwell)
6. 04:16 PM - Re: Re: Stratux Build (Kelly McMullen)
7. 05:41 PM - Re: Stratux Build (rampil)
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Message 1
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| Subject: | Re: Stratux Build |
Just a Nota Bene:
I have reviewed the Pilot Aware docs and discovered the following:
1) It is not open source. In fact it requires a license code from the author.
2) It uses the iOS hardware GPS. The GPS Chipset in an iPhone or
iPad is not a certificated TSO location source, nor does it even meet
TSO specs. Therefore it would not be legal to transmit data into the
NAS in the US even under the lenient requirements for experimental
aircraft.
3) It only does 1090 Extended squatter (for now). In the UK, ES is the
only game in town. In the US most GA traffic is 978 Hz TISb. So, in the US
PilotAware will show you mostly Transport Category stuff in the Flight Levels
but basically no traffic below FL180 (except near big airports).
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=449410#449410
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| Subject: | Re: Stratux Build |
A large proportion of high performance GA aircraft have or will get
1090ES because their aircraft can go above 18,000 and/or they already
had a Garmin 330 and upgrade to ES is their cheapest option.
Of flight schools in Phoenix that have ADS-B (all the big ones) one uses
978, the rest are all 1090ES.
On 11/15/2015 7:11 AM, rampil wrote:
>
> Just a Nota Bene:
>
> I have reviewed the Pilot Aware docs and discovered the following:
>
> 1) It is not open source. In fact it requires a license code from the author.
>
> 2) It uses the iOS hardware GPS. The GPS Chipset in an iPhone or
> iPad is not a certificated TSO location source, nor does it even meet
> TSO specs. Therefore it would not be legal to transmit data into the
> NAS in the US even under the lenient requirements for experimental
> aircraft.
>
> 3) It only does 1090 Extended squatter (for now). In the UK, ES is the
> only game in town. In the US most GA traffic is 978 Hz TISb. So, in the US
> PilotAware will show you mostly Transport Category stuff in the Flight Levels
> but basically no traffic below FL180 (except near big airports).
>
> --------
> Ira N224XS
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=449410#449410
>
>
Message 3
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| Subject: | Re: Stratux Build |
On 11/15/2015 9:11 AM, rampil wrote:
> 3) It only does 1090 Extended squatter (for now). In the UK, ES is the
> only game in town. In the US most GA traffic is 978 Hz TISb. So, in the US
> PilotAware will show you mostly Transport Category stuff in the Flight Levels
> but basically no traffic below FL180 (except near big airports).
It would be interesting to see actual numbers, but my guess is that at
present, most traffic in the US is on 1090 since most of the aircraft
that are currently equipped are commercial and business. There are also
a likely large number of GA aircraft using 1090 as well, since they will
want to do IFR at reasonably high altitudes.
As we get closer to 2020, we will likely see more GA traffic using 978,
but my gut is telling me that the largest number of traffic overall will
still be on 1090 for the reasons above. There really doesn't seem to be
an advantage to using 978 "Out" as far as I can see, but that does give
good reasons for equipping with a dual band "In" so you can see both.
-Dj
--
Dj Merrill - N1JOV - EAA Chapter 87
Sportsman 2+2 Builder #7118 N421DJ - http://deej.net/sportsman/
Glastar Flyer N866RH - http://deej.net/glastar/
Message 4
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| Subject: | Re: Stratux Build |
Are you saying that the FAA is not going to broadcast the "out" on both
freqs? That makes absolutely not sense to me.
You will be just as dead no matter what airplane you run into.
With the possible exception of Wonder Woman's plane... :>) Does she have
to install ADS-B as well??
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Dj
Merrill
Sent: Sunday, November 15, 2015 11:09 AM
Subject: Re: AeroElectric-List: Re: Stratux Build
On 11/15/2015 9:11 AM, rampil wrote:
> 3) It only does 1090 Extended squatter (for now). In the UK, ES is the
> only game in town. In the US most GA traffic is 978 Hz TISb. So, in the
US
> PilotAware will show you mostly Transport Category stuff in the Flight
Levels
> but basically no traffic below FL180 (except near big airports).
It would be interesting to see actual numbers, but my guess is that at
present, most traffic in the US is on 1090 since most of the aircraft
that are currently equipped are commercial and business. There are also
a likely large number of GA aircraft using 1090 as well, since they will
want to do IFR at reasonably high altitudes.
As we get closer to 2020, we will likely see more GA traffic using 978,
but my gut is telling me that the largest number of traffic overall will
still be on 1090 for the reasons above. There really doesn't seem to be
an advantage to using 978 "Out" as far as I can see, but that does give
good reasons for equipping with a dual band "In" so you can see both.
-Dj
--
Dj Merrill - N1JOV - EAA Chapter 87
Sportsman 2+2 Builder #7118 N421DJ - http://deej.net/sportsman/
Glastar Flyer N866RH - http://deej.net/glastar/
Message 5
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| Subject: | Re: Stratux Build |
I think your Nota Bene somewhat undersells Pilot Aware, Ira. It is not
open-source but the beta licence is free and once it enters the market,
the projected annual licence fee is very, very cheap. It can use the iOS
GPS but it can equally use any other GPS. In fact, an external GPS is
now the developer's preference. I take your point that it might not suit
the US at the present time but the potential is there for most
locations, provided they solve the ISM transmitter issues and there is
widespread adoption so that lower level traffic use it and therefore can
be seen.
Bill.
On 16/11/2015 1:11 AM, rampil wrote:
>
> Just a Nota Bene:
>
> I have reviewed the Pilot Aware docs and discovered the following:
>
> 1) It is not open source. In fact it requires a license code from the author.
>
> 2) It uses the iOS hardware GPS. The GPS Chipset in an iPhone or
> iPad is not a certificated TSO location source, nor does it even meet
> TSO specs. Therefore it would not be legal to transmit data into the
> NAS in the US even under the lenient requirements for experimental
> aircraft.
>
> 3) It only does 1090 Extended squatter (for now). In the UK, ES is the
> only game in town. In the US most GA traffic is 978 Hz TISb. So, in the US
> PilotAware will show you mostly Transport Category stuff in the Flight Levels
> but basically no traffic below FL180 (except near big airports).
>
> --------
> Ira N224XS
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=449410#449410
>
>
Message 6
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| Subject: | Re: Stratux Build |
Your out signal contains what type of In receiver you have, and the
ground station sends you data on your freq. Mostly a moot point for the
ground stations...1090 does not have bandwith for more than TIS-A, so
you get no weather or TIS-B traffic unless you have 978 receiver. Way
more complex than it needed to be.
On 11/15/2015 12:40 PM, Bill Bradburry wrote:
>
> Are you saying that the FAA is not going to broadcast the "out" on both
> freqs? That makes absolutely not sense to me.
> You will be just as dead no matter what airplane you run into.
>
> With the possible exception of Wonder Woman's plane... :>) Does she have
> to install ADS-B as well??
>
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com
> [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Dj
> Merrill
> Sent: Sunday, November 15, 2015 11:09 AM
> To: aeroelectric-list@matronics.com
> Subject: Re: AeroElectric-List: Re: Stratux Build
>
>
> On 11/15/2015 9:11 AM, rampil wrote:
>> 3) It only does 1090 Extended squatter (for now). In the UK, ES is the
>> only game in town. In the US most GA traffic is 978 Hz TISb. So, in the
> US
>> PilotAware will show you mostly Transport Category stuff in the Flight
> Levels
>> but basically no traffic below FL180 (except near big airports).
>
> It would be interesting to see actual numbers, but my guess is that at
> present, most traffic in the US is on 1090 since most of the aircraft
> that are currently equipped are commercial and business. There are also
> a likely large number of GA aircraft using 1090 as well, since they will
> want to do IFR at reasonably high altitudes.
>
> As we get closer to 2020, we will likely see more GA traffic using 978,
> but my gut is telling me that the largest number of traffic overall will
> still be on 1090 for the reasons above. There really doesn't seem to be
> an advantage to using 978 "Out" as far as I can see, but that does give
> good reasons for equipping with a dual band "In" so you can see both.
>
> -Dj
>
Message 7
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| Subject: | Re: Stratux Build |
Hi Bill,
I noted the discrepancy about Open Source because the original poster Clive
described it as such.
I have not seen any hard data about the division between 1090 and 978.
However, I have been using a dual receiver Stratux for more than a month.
In my neck of the woods, the traffic I see is airline and corporate on 1090
and the traffic doing less than 300 kts is all 978. Time will tell.
1090 traffic received by an aircraft receiver is solely direct transmission from
other aircraft in range.
978 traffic is a combination of direct reception from other aircraft plus
ground-based retransmission of targets both 978 and 1090. (Not to
mention the FISb data)
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=449511#449511
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