Today's Message Index:
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1. 05:52 AM - Re: Double Check Antenna Placement (Kelly McMullen)
2. 07:49 AM - Re: Double Check Antenna Placement (Dj Merrill)
Message 1
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| Subject: | Re: Double Check Antenna Placement |
You are right. I was wrong. TIS-B and ADS-R are available on 1090
frequency.
However, older boxes, like the Garmin 330ES only receive TIS-A. The
Garmin 335 does not receive any TIS. Apparently some of the newer boxes
will receive TIS-B on 1090. None of the 1090 boxes can receive FIS-B.
(weather) without a 978 receiver.
Some of the boxes like the L3 Lynx 9000 and Garmin 345 contain both the
out and a dual frequency In receiver to allow receiving all ADS-B
equipped traffic directly, aircraft to aircraft, but still need the
ground stations to see non-equipped aircraft.
To quote from Garmin: "Will the GTX 330 ES, GTX 33 ES or GTX 23 ES
transponders display traffic via the FAAs TIS-B ADS-B uplink? The ES
transponders currently have the capability to uplink the FAAs TIS-A
traffic (consult the question below regarding differences between TIS-A
and TIS-B traffic). There are currently no plans to update the
transponder to uplink from TIS-B."
Basically I'm not seeing many 1090ES transponders that include a TIS-B
or any other form of traffic receiver, except as an optional extra, and
it makes more sense to get a dual band receiver if you are concerned
about traffic when you are out of sight of a ground station. Dual band
is only showing up in the newest units.
Having a portable receiver that displays on a tablet is nice, but isn't
the same as having traffic and weather on the instrument panel.
Kelly
jim@PoogieBearRanch.com wrote:
> -->-List message posted by: <jim@poogiebearranch.com>
>
> I beg to differ... In addition to the TIS-B data (sourced from the ATC
> radar contacts), you're also getting the ADS-R rebroadcast of UAT
> traffic, and the direct air-to-air broadcast of all the 1090ES traffic.
>
>
> Here is some information that specifically explain how it works:
>
> FAA's ADS-B website:
> https://www.faa.gov/nextgen/equipadsb/ins_and_outs/
>
> iPad Pilot News:
> http://ipadpilotnews.com/2012/08/understanding-ads-b-traffic/
>
> ForeFlight article:
> https://support.foreflight.com/hc/en-us/articles/205482188-What-do-ADS-B-ADS-R-and-TIS-B-refer-to-when-displayed-with-a-traffic-target-
>
> Jim Parker
>
Message 2
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| Subject: | Re: Double Check Antenna Placement |
On 01/30/2017 08:51 AM, Kelly McMullen wrote:
> Having a portable receiver that displays on a tablet is nice, but isn't
> the same as having traffic and weather on the instrument panel.
There are portable receivers that will interface with an EFIS mounted in
the panel. GRT, for example, will interface with multiple portable
ADS-B receivers, including the Raspberry Pi based Stratux system, while
at the same time being able to display the ADS-B information on a tablet.
-Dj
--
Dj Merrill - N1JOV - EAA Chapter 87
Sportsman 2+2 Builder #7118 N421DJ - https://deej.net/sportsman/
Glastar Flyer N866RH - https://deej.net/glastar/
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