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  #21  
Old 12-09-2020, 09:43 AM
Joe Joe is offline
 
Join Date: Oct 2005
Location: Independence, OR
Posts: 410
Default APRS forever

I was an early adopter of APRS tracking but now I use both APRS and ADS-B. I find coverage varies depending on location. In parts of Nevada the ARTCC can't even hear me on the radio, much less see my aircraft on radar or ADS-B while APRS provides pretty good coverage from a few mountaintop digipeaters. The situation is reversed in other areas, particularly at low altitudes but near FAA ADS-B basestations.

Here in the Willamette Valley of western Oregon, they're both solid right down to the ground (taxiing) at my airfield. The map image below is from yesterday's flight and is a combined feed with the ADS-B coming from an ADSBexchange (not FA).

Red position reports are from APRS, green from ADS-B. Circling my GF's place caused the mostly red cluster of position reports near the center <g>.
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Last edited by Joe : 12-09-2020 at 09:45 AM.
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  #22  
Old 12-09-2020, 10:04 AM
94kb 94kb is offline
 
Join Date: Jan 2005
Location: Waco, Texas
Posts: 138
Default APRS coverage

I agree coverage will vary depending on location and altitude. My tracks were mostly low level especially when I was flying 500 ft following the Brazos river.
Good coverage for Flight Aware UAT rcvr in my hangar and limited digipeters in the area.
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  #23  
Old 12-11-2020, 11:53 PM
RV7A Flyer's Avatar
RV7A Flyer RV7A Flyer is offline
 
Join Date: Jul 2013
Location: US
Posts: 2,369
Default

I have a Byonics APRS tracker that I put in the left wingtip right after I completed the build, but it never seemed to work well, even after some work on it by Byonics. Didn't really work well in the car, either, so when I pulled it out when getting the plane painted, I never put it back in. I'm tempted to futz with it some more, just to see if I can get it to work while driving, but I'm also tempted to try a different brand if anyone has an alternate suggestion for a particular tracker model.

Kind of fun to play with, and would be nice to have if I can get one that works well.
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  #24  
Old 12-12-2020, 12:35 AM
Bevan Bevan is offline
 
Join Date: Sep 2007
Location: BC
Posts: 1,698
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Are you using the antenna that it came with?

Quote:
Originally Posted by RV7A Flyer View Post
I have a Byonics APRS tracker that I put in the left wingtip right after I completed the build, but it never seemed to work well, even after some work on it by Byonics. Didn't really work well in the car, either, so when I pulled it out when getting the plane painted, I never put it back in. I'm tempted to futz with it some more, just to see if I can get it to work while driving, but I'm also tempted to try a different brand if anyone has an alternate suggestion for a particular tracker model.

Kind of fun to play with, and would be nice to have if I can get one that works well.
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  #25  
Old 12-12-2020, 05:49 AM
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rleffler rleffler is offline
 
Join Date: Jun 2006
Location: Delaware, OH (KDLZ)
Posts: 4,220
Default

Quote:
Originally Posted by RV7A Flyer View Post
I have a Byonics APRS tracker that I put in the left wingtip right after I completed the build, but it never seemed to work well, even after some work on it by Byonics. Didn't really work well in the car, either, so when I pulled it out when getting the plane painted, I never put it back in. I'm tempted to futz with it some more, just to see if I can get it to work while driving, but I'm also tempted to try a different brand if anyone has an alternate suggestion for a particular tracker model.

Kind of fun to play with, and would be nice to have if I can get one that works well.
My experience is that they’ll work perfectly or not at all.

What does work well mean?

I agree with Bevan. If packets are t getting to a receiver, then I would take a look at your antenna. I have a Delta Pop APRS antenna on the bottom of my RV-10 and haven’t had any issues. I did have one of the early gps units they sold sold that died after a couple years of service, it that was easy enough to fix.
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  #26  
Old 12-12-2020, 12:05 PM
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RV7A Flyer RV7A Flyer is offline
 
Join Date: Jul 2013
Location: US
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Quote:
Originally Posted by rleffler View Post
My experience is that they’ll work perfectly or not at all.

What does work well mean?

I agree with Bevan. If packets are t getting to a receiver, then I would take a look at your antenna. I have a Delta Pop APRS antenna on the bottom of my RV-10 and haven’t had any issues. I did have one of the early gps units they sold sold that died after a couple years of service, it that was easy enough to fix.
Using the J-pole antenna that Byonics recommended. By "not working well", I mean it would send out a packet on what looks like a pretty random basis...sometimes regularly for a few minutes, then not at all for 20-30 minutes of flight, then would start again, very hit and miss. And it's not like I'm in an area of sparse coverage for repeaters and such...I'm in the L.A. basin. A couple of other pilots here installed APRS and get excellent coverage all over CA, so coverage wasn't the problem. And it showed the same behavior in the car, with both the J-pole and another antenna.

I'm messing with it today in the car, just pulled it out to take a look at it and see what's up. Configuration looks good on the config app, so we'll see.

I would still be interested in any recommendations for other APRS trackers that anyone might have. I like toys .
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  #27  
Old 12-12-2020, 02:44 PM
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Sam Buchanan Sam Buchanan is offline
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Join Date: Dec 2004
Location: North Alabama
Posts: 4,370
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Your tracker may be configured to not send beacons if it isn't getting complete data from the GPS. You may have a GPS/configuration issue.
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  #28  
Old 12-12-2020, 04:27 PM
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RV7A Flyer RV7A Flyer is offline
 
Join Date: Jul 2013
Location: US
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Quote:
Originally Posted by Sam Buchanan View Post
Your tracker may be configured to not send beacons if it isn't getting complete data from the GPS. You may have a GPS/configuration issue.
It is getting GPS fixes...solid green light, and it's sending them, but again, sporadically from what I see on aprs.fi. It's configured to send every 2 minutes (I have dynamic tracking turned off at the moment). Anyway, I'll keep messing with it for a few days...heck, why not? Nothing better to do after teleworking all day
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  #29  
Old 12-12-2020, 09:49 PM
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gnuse gnuse is offline
 
Join Date: Jan 2005
Location: Georgia / 0GE5 / KSSI
Posts: 405
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I do and my iGate is still working. ADSB certainly doesn't supply the information that APRS does. Like Sam, I'm not sure what I would do if it quit but Byonics has been 100% supportive of keeping it working. My family and friends have links on their phones, so they can see what I am up to with details of position, speed, and altitude. It was also the driving force for me to finally earn my Ham license.
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Last edited by gnuse : 12-12-2020 at 09:51 PM.
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  #30  
Old 12-13-2020, 11:24 AM
guccidude1 guccidude1 is offline
 
Join Date: Mar 2008
Location: Reno NV
Posts: 546
Default Anyone still flying with APRS

I still have mine installed and broadcasting. Additionally, I have an I-Gate installed in my hangar. Brian Adams is the actual guy behind all the tech stuff I have, he installed most and keeps all operational. Dan from Reno
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