Lower Priced ADS-B Out Solution

A start in the right direction for those who feel they must have this:
http://www.aopa.org/News-and-Video/A...WT.mc_sect=tec
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Dan Marotta

On Friday, March 20, 2015 at 10:46:07 AM UTC-4, Dan Marotta wrote:
A start in the right direction for those who feel they must have
this:* http://www.aopa.org/News-and-Video/A...WT.mc_sect=tec


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Dan Marotta

UAT. Cue the usual argument. In short: skip this junk.

The other day I saw an article that indicated an approved GPS
source was being offered for $800. This is what you want to plug
into your existing Mode S transponder to get ADS-B out.
Unfortunately I can't find the article. I'm pretty sure it
was on eBrief, but there isn't a way to search their archives.
You can browse them one at a time but I'm not seeing the article now.

Matt

Thanks, but no thanks. I will continue to not install expensive and non
required equipment in my glider. I only posted that for the techno-hogs
that need such stuff. :-P

On 3/20/2015 10:55 AM, wrote:
On Friday, March 20, 2015 at 10:46:07 AM UTC-4, Dan Marotta wrote:
A start in the right direction for those who feel they must have
this: http://www.aopa.org/News-and-Video/A...WT.mc_sect=tec


--

Dan Marotta
UAT. Cue the usual argument. In short: skip this junk.

The other day I saw an article that indicated an approved GPS
source was being offered for $800. This is what you want to plug
into your existing Mode S transponder to get ADS-B out.
Unfortunately I can't find the article. I'm pretty sure it
was on eBrief, but there isn't a way to search their archives.
You can browse them one at a time but I'm not seeing the article now.

Matt

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Dan Marotta

But we need it for the Pawnee! We are inside the 30nm vail.
You will too if you tow above 10,000 MSL.

BillT

Absolutely correct, Bill, but I tell all the glider pilots that I won't
tow them above 10K MSL since the tug doesn't have a transponder.
Besides, who needs to tow to 3,800' AGL? We don't have the problem that
you have with Las Vegas...

BTW, is there gonna be another ground launch weekend next month? We're
itching to try out our new RV (which we haven't taken delivery of as yet).

Dan

On 3/20/2015 5:33 PM, Bill T wrote:
But we need it for the Pawnee! We are inside the 30nm vail.
You will too if you tow above 10,000 MSL.

BillT

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Dan Marotta

Dan we have the BLM reservation for the 17-18-19 of April. The Pawnee is in Parowan getting the wings recoverd. We are hoping it will be back in time to get us to the lake bed. Hard to move the 2-33 or Grob down there without it. I'll let you know.

It looks like Tonopah will the the 21st to 27th of June.
BillT

UAT out meets the requirement. Granted FLARM won't see UAT, but we only have one FLARM unit right now in the area.
TCAS gets an alert from my mode C, and the big boys with ADSB In will get the ADSB rebroadcast data from the ground station.

BillT

On Friday, March 20, 2015 at 4:37:18 PM UTC-7, Bill T wrote:
UAT out meets the requirement. Granted FLARM won't see UAT, but we only have one FLARM unit right now in the area.
TCAS gets an alert from my mode C, and the big boys with ADSB In will get the ADSB rebroadcast data from the ground station.

BillT

Check the installation costs, including ADS-B antenna diversity requirements, plus maintenance for two separate transmitters (Mode C plus ADS-B UAT). Buying a single Mode S/1090ES Out may be a better option in the end.

Thanks Andy, will do. We have an ancient KT Mode C, we'll need to add approved GPS receiver, 1090ES and compatible altitude encoder, plus an ADS-B out box to tie together.

BillT

On Saturday, March 21, 2015 at 5:53:06 AM UTC-7, Bill T wrote:
Thanks Andy, will do. We have an ancient KT Mode C, we'll need to add approved GPS receiver, 1090ES and compatible altitude encoder, plus an ADS-B out box to tie together.

BillT

Hi Bill,

It wasn't totally clear from your post, but to clarify...Modern Mode S transponders should transmit 1090ES Out with the addition for a properly configured GPS. The 'ES' stands for 'Extended Squitter' with appends the GPS information to the Mode S broadcast. Since it operates on the same frequency as Mode C, you should be able to upgrade transponders without changing antenna installation. It seems likely that if you wait, there will be available on the market an integrated Mode S/1090ES Out box with built in GPS, in which case all you'd be able to reuse the Mode C antenna, antenna cable run and power and simply find a spot for the GPS antenna. I'm not sure about the altitude encoder - I think generally access to a static line is the only necessity.

Keeping the old Mode C and adding ADS-B UAT Out entails not only the GPS, but running additional power and (probably) a circuit breaker, one or maybe two additional ADS-B antennas and coax runs, double the inspection and maintenance and in all likelihood more debugging for interoperability. To the extent that the UAT Out has some sort of control head you'll need find a place to mount that too. Lastly you'll have to face the inevitability of being stuck with two systems forever (even after your Mode C finally gives up the ghost). Since Mode S and UAT operate on different frequencies they cannot be combined and will always require separate antennae. If you make the investment in UAT, switching back over to 1090ES Out once your Mode C dies entails also throwing out the relatively newer UAT gear, pulling the antennae, etc. Would be a bit messy and expensive.

Andy, 9B