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  #21  
Old 07-01-2012, 04:25 AM
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humptybump humptybump is offline
 
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Quote:
Originally Posted by DAGO View Post
There are two models that may apply:

Micro-Trak RTG-FA, GPS/Antenna combo (Its only costs a $1 less to purchase the GPS without the antenna)
or
Micro-Trak RTG-FA, High Altitude combo

I assume the first model is what you have installed.

Thanks,
Yes. The high altitude package was designed for balloon weather launches.
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  #22  
Old 07-18-2012, 04:10 PM
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Got my M-T RTG-FA programmed and operational today. Since it won’t get installed in the -8 until September, I programmed it for auto use. When we start our “RV” cross country to South Carolina next month in our Saturn Relay (ugh), we’ll run the tracker for an exciting “ground” following adventure…this is a very "un-Vlad" utilization of APRS technology.

My thanks to Byon, Allen, Sam, and Glen, for all their helpful posts!

Regards,
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Last edited by TomVal : 07-18-2012 at 05:54 PM.
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  #23  
Old 04-16-2013, 08:21 PM
moll780 moll780 is offline
 
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Location: Austin TX
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What antenna's are good specifically for aircraft?
I have an RV9 and I'm thinking of ordering the RTG kit from byonics.

http://www.byonics.com/mt-rtg


Quote:
Originally Posted by DAGO View Post
Got my M-T RTG-FA programmed and operational today. Since it won’t get installed in the -8 until September, I programmed it for auto use. When we start our “RV” cross country to South Carolina next month in our Saturn Relay (ugh), we’ll run the tracker for an exciting “ground” following adventure…this is a very "un-Vlad" utilization of APRS technology.

My thanks to Byon, Allen, Sam, and Glen, for all their helpful posts!

Regards,
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  #24  
Old 04-16-2013, 09:34 PM
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DakotaHawk DakotaHawk is offline
 
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Quote:
Originally Posted by moll780 View Post
What antenna's are good specifically for aircraft?
I have an RV9 and I'm thinking of ordering the RTG kit from byonics.

http://www.byonics.com/mt-rtg


I used the Phantom Elite 144 MHZ antenna and get amazing results on my APRS tracks.

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  #25  
Old 04-17-2013, 04:23 AM
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I (and others) who added APRS to a flying airplane ended up mounting the Byonics RTG in a wingtip. A J-pole is easy to install inside the wingtip.

Pete Howell (his kids make great antennas) has some pictures of an older Byonics install but it still applies to the RTG.
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  #26  
Old 04-18-2013, 09:09 PM
moll780 moll780 is offline
 
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ordered byonics RTG and the ETRA1440 antenna...
now, just how to mount the antenna!

I'm thinking i need one of these for all my vehicles.. and maybe one for my house. So I can track wherever it goes while Im at work. Im sure its heading downtown hanging out at pool halls and arcades dropping quarters into pacman and space invaders machines. harlot!
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  #27  
Old 04-23-2013, 07:53 AM
VHS VHS is offline
 
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Default NMO Mount antenna

The antenna utilizes an NMO style mount ( which won't be included in your antenna purchase) and this requires a 3/4 inch hole for mounting.

Allen
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  #28  
Old 04-23-2013, 08:13 AM
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Allen, would it be possible as a feature request to send user-configurable telemetry with the RTG via one of the serial ports on the PIC?
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  #29  
Old 04-24-2013, 07:55 AM
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Default Telemetry

Bob,

The RTG only has one serial port, but does have built-in support for internal telemetry for power supply, and temperature. There is an auxiliary input for a 0-5 Volt analog telemetry feed. If your goal is to send your EFIS data, there is no way to do both tracking and external digital telemetry with the RTG. However, there is a version of the PIC firmware called the "TinyPack" which will take serial input and format it as Ax.25 data, APRS packets for transmission. It can't do both tracking and act as a one-way modem simultaneously. The TT4 does have two serial inputs, so one can be dedicated to the GPS, and the second used to send data in KISS mode ( Whatever data you send it at the programmed baud rate gets transmitted as packets) We have been working on a TT4-based version with an integrated receiver for quite some time, and we have a couple of solutions in the works; Right now, these include a TT4-based MT-AIO transceiver ( working very well, just waiting for a code refinements to switch the GPS that is single channel on 144.390, and a version of the RTG that is a frequency agile TT4 based transceiver. This project has significant code development still to go, but the RF side seems to work joyously.

Best regards,

Allen
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  #30  
Old 06-17-2013, 02:36 PM
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Default Which APRS Antenna to use on the -12?

Quote:
Originally Posted by DakotaHawk View Post


I used the Phantom Elite 144 MHZ antenna and get amazing results on my APRS tracks.

Thinking about running APRS on the -12. DakotaHawk highlights a possible good antenna choice but I am reluctant to drill any more holes in the fuselage than necessary.

Also, I wonder if you just use the small APRS vertical antenna (with the magnetic base) that came with the M-T RTG tracker placed on top of the fuel tank would work? The top of the fuel tank may not be the best location for antenna reception but it would be worth the try. Has anyone tried this?
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