AV30


Jim Patillo
 

Good morning all,

I recently installed two Uavonix AV30’s in my plane and removed all the vacuum stuff. That all worked great and I really like not having vacuum. Each unit is a full blown AHARS.   Having said that, the DG unit cannot hold a heading worth a crap and precesses within 10-15 minutes to where it has to be reset with the compass. I’ve tried calibrating it but no joy for better performance. I can buy an external magnometer to solve this but would rather not. My question is, has anyone else seen this problem and how did you solve it. 


BTW, I hope to pass 2000 hours on my plane this year. It’s been a blast. Keep building only if it’s a little every day. There is actually an end believe it or not, and you will be greatly rewarded! 


Jim
N46JP - Q200


 

Hi Jim,
 
I installed a second one in my Thorp in Oct.  Got it a free cap and two multi tools at OSH...nice folks.  I agree that it was fun removing all the vacuum stuff.
What little I've flown it it seems to be working ok but I've only flown it very little just round home.  No x-cty's to verify that it'll stay on track.
The fall season here kinda put a hold on flying.
While on the line I'm putting new seat belts in the plane from Crow Safety Gear.  Much more cost effective and they have a very informative website and are good to visit with.  
This 1982 built plane had automotive type seat belts installed originally with the push button release.  Knowing that type release is not legal for aircraft I was puzzled to
find a sewed on label saying they were FAA TSO'd.  Would that have been true back then?
Thanks
 
Keith
 


---------- Original Message ----------
From: "Jim Patillo" <Logistics_engineering@...>
To: main@Q-List.groups.io
Subject: [Q-List] AV30
Date: Sat, 26 Nov 2022 08:28:08 -0800

Good morning all,

I recently installed two Uavonix AV30’s in my plane and removed all the vacuum stuff. That all worked great and I really like not having vacuum. Each unit is a full blown AHARS.   Having said that, the DG unit cannot hold a heading worth a crap and precesses within 10-15 minutes to where it has to be reset with the compass. I’ve tried calibrating it but no joy for better performance. I can buy an external magnometer to solve this but would rather not. My question is, has anyone else seen this problem and how did you solve it. 


BTW, I hope to pass 2000 hours on my plane this year. It’s been a blast. Keep building only if it’s a little every day. There is actually an end believe it or not, and you will be greatly rewarded! 


Jim
N46JP - Q200


Adam Radloff
 

Jim, forget it without the magnetometer. I own 2 also and have the same complaint, personally I think uAvionix should provide the magnetometer for free for the poor saps like us that bought them. It's false advertising in my opinion. If you research the web and review the AV-30 Facebook group there are many many complaints. 


On Sat, Nov 26, 2022, 11:28 AM Jim Patillo <Logistics_engineering@...> wrote:

Good morning all,

I recently installed two Uavonix AV30’s in my plane and removed all the vacuum stuff. That all worked great and I really like not having vacuum. Each unit is a full blown AHARS.   Having said that, the DG unit cannot hold a heading worth a crap and precesses within 10-15 minutes to where it has to be reset with the compass. I’ve tried calibrating it but no joy for better performance. I can buy an external magnometer to solve this but would rather not. My question is, has anyone else seen this problem and how did you solve it. 


BTW, I hope to pass 2000 hours on my plane this year. It’s been a blast. Keep building only if it’s a little every day. There is actually an end believe it or not, and you will be greatly rewarded! 


Jim
N46JP - Q200


Ben Wilson
 

Here’s what ACS says:

 

Q: Will this unit work on the AV30 for a DG?

No, this is only used for compatible MGL instruments. The AV-30 is a non-slaved DG, so it does not require a remote magnetometer.”

 

Hmmmm……

 

 

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Adam Radloff
Sent: Saturday, November 26, 2022 12:46 PM
To: main@q-list.groups.io
Subject: Re: [Q-List] AV30

 

Jim, forget it without the magnetometer. I own 2 also and have the same complaint, personally I think uAvionix should provide the magnetometer for free for the poor saps like us that bought them. It's false advertising in my opinion. If you research the web and review the AV-30 Facebook group there are many many complaints. 

 

On Sat, Nov 26, 2022, 11:28 AM Jim Patillo <Logistics_engineering@...> wrote:

Good morning all,

I recently installed two Uavonix AV30’s in my plane and removed all the vacuum stuff. That all worked great and I really like not having vacuum. Each unit is a full blown AHARS.   Having said that, the DG unit cannot hold a heading worth a crap and precesses within 10-15 minutes to where it has to be reset with the compass. I’ve tried calibrating it but no joy for better performance. I can buy an external magnometer to solve this but would rather not. My question is, has anyone else seen this problem and how did you solve it. 


BTW, I hope to pass 2000 hours on my plane this year. It’s been a blast. Keep building only if it’s a little every day. There is actually an end believe it or not, and you will be greatly rewarded! 


Jim
N46JP - Q200


Jim Patillo
 

Hi Ben and Keith,
Uavonix does sell a remote magnometer compatible with these units. They’ve added it as an option for $295.00 but you would think that after spending that much for AV30’s their internal magnetometers would work better. You can set them both in DG mode and go fly for 15 minutes and they vary from each other after each and are off course. I’ve tried calibrating them and talking to the factory but that hasn’t helped so far. Everything else works great. 

Jim
N46JP - Q200

From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Ben Wilson <4benwilson@...>
Sent: Saturday, November 26, 2022 4:35:31 PM
To: main@Q-List.groups.io <main@Q-List.groups.io>
Subject: Re: [Q-List] AV30
 

Here’s what ACS says:

 

Q: Will this unit work on the AV30 for a DG?

No, this is only used for compatible MGL instruments. The AV-30 is a non-slaved DG, so it does not require a remote magnetometer.”

 

Hmmmm……

 

 

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Adam Radloff
Sent: Saturday, November 26, 2022 12:46 PM
To: main@q-list.groups.io
Subject: Re: [Q-List] AV30

 

Jim, forget it without the magnetometer. I own 2 also and have the same complaint, personally I think uAvionix should provide the magnetometer for free for the poor saps like us that bought them. It's false advertising in my opinion. If you research the web and review the AV-30 Facebook group there are many many complaints. 

 

On Sat, Nov 26, 2022, 11:28 AM Jim Patillo <Logistics_engineering@...> wrote:

Good morning all,

I recently installed two Uavonix AV30’s in my plane and removed all the vacuum stuff. That all worked great and I really like not having vacuum. Each unit is a full blown AHARS.   Having said that, the DG unit cannot hold a heading worth a crap and precesses within 10-15 minutes to where it has to be reset with the compass. I’ve tried calibrating it but no joy for better performance. I can buy an external magnometer to solve this but would rather not. My question is, has anyone else seen this problem and how did you solve it. 


BTW, I hope to pass 2000 hours on my plane this year. It’s been a blast. Keep building only if it’s a little every day. There is actually an end believe it or not, and you will be greatly rewarded! 


Jim
N46JP - Q200


Paul Fisher
 

Interesting.  I just ordered one (Black Friday sale).  I really wanted the artificial horizon function, but I was hoping the DG would work as well.  I guess I'll find out!  Although it may have to wait until it warms up a little - working in a cold hangar is no fun!!

Congratulations on 2000 hours Jim!

Paul 

On Sat, Nov 26, 2022, 20:56 Jim Patillo <Logistics_engineering@...> wrote:
Hi Ben and Keith,
Uavonix does sell a remote magnometer compatible with these units. They’ve added it as an option for $295.00 but you would think that after spending that much for AV30’s their internal magnetometers would work better. You can set them both in DG mode and go fly for 15 minutes and they vary from each other after each and are off course. I’ve tried calibrating them and talking to the factory but that hasn’t helped so far. Everything else works great. 

Jim
N46JP - Q200

From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Ben Wilson <4benwilson@...>
Sent: Saturday, November 26, 2022 4:35:31 PM
To: main@Q-List.groups.io <main@Q-List.groups.io>
Subject: Re: [Q-List] AV30
 

Here’s what ACS says:

 

Q: Will this unit work on the AV30 for a DG?

No, this is only used for compatible MGL instruments. The AV-30 is a non-slaved DG, so it does not require a remote magnetometer.”

 

Hmmmm……

 

 

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Adam Radloff
Sent: Saturday, November 26, 2022 12:46 PM
To: main@q-list.groups.io
Subject: Re: [Q-List] AV30

 

Jim, forget it without the magnetometer. I own 2 also and have the same complaint, personally I think uAvionix should provide the magnetometer for free for the poor saps like us that bought them. It's false advertising in my opinion. If you research the web and review the AV-30 Facebook group there are many many complaints. 

 

On Sat, Nov 26, 2022, 11:28 AM Jim Patillo <Logistics_engineering@...> wrote:

Good morning all,

I recently installed two Uavonix AV30’s in my plane and removed all the vacuum stuff. That all worked great and I really like not having vacuum. Each unit is a full blown AHARS.   Having said that, the DG unit cannot hold a heading worth a crap and precesses within 10-15 minutes to where it has to be reset with the compass. I’ve tried calibrating it but no joy for better performance. I can buy an external magnometer to solve this but would rather not. My question is, has anyone else seen this problem and how did you solve it. 


BTW, I hope to pass 2000 hours on my plane this year. It’s been a blast. Keep building only if it’s a little every day. There is actually an end believe it or not, and you will be greatly rewarded! 


Jim
N46JP - Q200


Rick Hole
 

The problem with internal magnetometers in a panel instrument is proximity to steel or wiring carrying any significant current.  External magnetometers can be placed where there are no stray magnetic fields.
I have installed bunches.  Occasionally an internal magnetometer can be calibrated. If you are very, very lucky.

Rick Hole


On Sat, Nov 26, 2022, 8:56 PM Jim Patillo <Logistics_engineering@...> wrote:
Hi Ben and Keith,
Uavonix does sell a remote magnometer compatible with these units. They’ve added it as an option for $295.00 but you would think that after spending that much for AV30’s their internal magnetometers would work better. You can set them both in DG mode and go fly for 15 minutes and they vary from each other after each and are off course. I’ve tried calibrating them and talking to the factory but that hasn’t helped so far. Everything else works great. 

Jim
N46JP - Q200

From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Ben Wilson <4benwilson@...>
Sent: Saturday, November 26, 2022 4:35:31 PM
To: main@Q-List.groups.io <main@Q-List.groups.io>
Subject: Re: [Q-List] AV30
 

Here’s what ACS says:

 

Q: Will this unit work on the AV30 for a DG?

No, this is only used for compatible MGL instruments. The AV-30 is a non-slaved DG, so it does not require a remote magnetometer.”

 

Hmmmm……

 

 

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Adam Radloff
Sent: Saturday, November 26, 2022 12:46 PM
To: main@q-list.groups.io
Subject: Re: [Q-List] AV30

 

Jim, forget it without the magnetometer. I own 2 also and have the same complaint, personally I think uAvionix should provide the magnetometer for free for the poor saps like us that bought them. It's false advertising in my opinion. If you research the web and review the AV-30 Facebook group there are many many complaints. 

 

On Sat, Nov 26, 2022, 11:28 AM Jim Patillo <Logistics_engineering@...> wrote:

Good morning all,

I recently installed two Uavonix AV30’s in my plane and removed all the vacuum stuff. That all worked great and I really like not having vacuum. Each unit is a full blown AHARS.   Having said that, the DG unit cannot hold a heading worth a crap and precesses within 10-15 minutes to where it has to be reset with the compass. I’ve tried calibrating it but no joy for better performance. I can buy an external magnometer to solve this but would rather not. My question is, has anyone else seen this problem and how did you solve it. 


BTW, I hope to pass 2000 hours on my plane this year. It’s been a blast. Keep building only if it’s a little every day. There is actually an end believe it or not, and you will be greatly rewarded! 


Jim
N46JP - Q200


Kevin Boddicker
 

I too have one AV30 installed. Talked with the rep at OSH. She said if it precesses more than a few degrees in 15 minutes, a remote is needed.
The reason cited was magnetic interference in the panel. I bought it for the DG! Had a bad DG vacuum driven, and my compass goes crazy 
when I excite the alternator. The crazy part is that I will see 10 to 20 degree swing during flight. When I get on the ground and am taxiing to the hanger,
it will be very close to the setting I used before TO. (the times I have checked)
In my case I believe that in flight I am using the GPS and looking at track. Not magnetic. We automatically correct for wind correction and variation.
Even though variation is 1° or so in this area, so I would consider it non existent. With light and variable winds aloft it seems to do better.

Just my theory. I don’t have a bunch of hours on the unit. So you will need to make your own conclusions.


Kevin Boddicker
TriQ 200 N7868B   593 hrs
Luana, IA.

Less hours than Jim P!!! Congrats Jim.



On Nov 26, 2022, at 9:40 PM, Paul Fisher <rv7a.n18pf@...> wrote:

Interesting.  I just ordered one (Black Friday sale).  I really wanted the artificial horizon function, but I was hoping the DG would work as well.  I guess I'll find out!  Although it may have to wait until it warms up a little - working in a cold hangar is no fun!!

Congratulations on 2000 hours Jim!

Paul 

On Sat, Nov 26, 2022, 20:56 Jim Patillo <Logistics_engineering@...> wrote:
Hi Ben and Keith,
Uavonix does sell a remote magnometer compatible with these units. They’ve added it as an option for $295.00 but you would think that after spending that much for AV30’s their internal magnetometers would work better. You can set them both in DG mode and go fly for 15 minutes and they vary from each other after each and are off course. I’ve tried calibrating them and talking to the factory but that hasn’t helped so far. Everything else works great. 

Jim
N46JP - Q200

From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Ben Wilson <4benwilson@...>
Sent: Saturday, November 26, 2022 4:35:31 PM
To: main@Q-List.groups.io <main@Q-List.groups.io>
Subject: Re: [Q-List] AV30
 

Here’s what ACS says:

 

Q: Will this unit work on the AV30 for a DG?

No, this is only used for compatible MGL instruments. The AV-30 is a non-slaved DG, so it does not require a remote magnetometer.”

 

Hmmmm……

 
 

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Adam Radloff
Sent: Saturday, November 26, 2022 12:46 PM
To: main@q-list.groups.io
Subject: Re: [Q-List] AV30

 

Jim, forget it without the magnetometer. I own 2 also and have the same complaint, personally I think uAvionix should provide the magnetometer for free for the poor saps like us that bought them. It's false advertising in my opinion. If you research the web and review the AV-30 Facebook group there are many many complaints. 

 

On Sat, Nov 26, 2022, 11:28 AM Jim Patillo <Logistics_engineering@...> wrote:

Good morning all,

I recently installed two Uavonix AV30’s in my plane and removed all the vacuum stuff. That all worked great and I really like not having vacuum. Each unit is a full blown AHARS.   Having said that, the DG unit cannot hold a heading worth a crap and precesses within 10-15 minutes to where it has to be reset with the compass. I’ve tried calibrating it but no joy for better performance. I can buy an external magnometer to solve this but would rather not. My question is, has anyone else seen this problem and how did you solve it. 


BTW, I hope to pass 2000 hours on my plane this year. It’s been a blast. Keep building only if it’s a little every day. There is actually an end believe it or not, and you will be greatly rewarded! 


Jim
N46JP - Q200






Jim Patillo
 

Hey Rick and Kevin, you know they should be giving us the damn things (remote mag) for free. Have you tried working on Uavonix for something to be done about this. I’m about to. 

I have two AV30’s and they don’t agree after 15 minutes (when both are set to show DG’s) and forget maintaining the heading. I’ve talked to Uavonix before about calibration and did exactly as they instructed with the figure 8’s etc. but no bueno. The displays and other features are great but the DG feature isn’t reliable as is. I don’t get how they can sell them as a DG with smiles on their faces. As a side, I love the rest of the jam-packed features these little units provide. They have bright and clear screens that work well in direct sun light. Great for clear or tinted canopies. 

Jim
N46JP Q200


From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Kevin Boddicker <trumanst@...>
Sent: Sunday, November 27, 2022 12:17:15 PM
To: main@q-list.groups.io <main@Q-List.groups.io>
Subject: Re: [Q-List] AV30
 
I too have one AV30 installed. Talked with the rep at OSH. She said if it precesses more than a few degrees in 15 minutes, a remote is needed.
The reason cited was magnetic interference in the panel. I bought it for the DG! Had a bad DG vacuum driven, and my compass goes crazy 
when I excite the alternator. The crazy part is that I will see 10 to 20 degree swing during flight. When I get on the ground and am taxiing to the hanger,
it will be very close to the setting I used before TO. (the times I have checked)
In my case I believe that in flight I am using the GPS and looking at track. Not magnetic. We automatically correct for wind correction and variation.
Even though variation is 1° or so in this area, so I would consider it non existent. With light and variable winds aloft it seems to do better.

Just my theory. I don’t have a bunch of hours on the unit. So you will need to make your own conclusions.


Kevin Boddicker
TriQ 200 N7868B   593 hrs
Luana, IA.

Less hours than Jim P!!! Congrats Jim.



On Nov 26, 2022, at 9:40 PM, Paul Fisher <rv7a.n18pf@...> wrote:

Interesting.  I just ordered one (Black Friday sale).  I really wanted the artificial horizon function, but I was hoping the DG would work as well.  I guess I'll find out!  Although it may have to wait until it warms up a little - working in a cold hangar is no fun!!

Congratulations on 2000 hours Jim!

Paul 

On Sat, Nov 26, 2022, 20:56 Jim Patillo <Logistics_engineering@...> wrote:
Hi Ben and Keith,
Uavonix does sell a remote magnometer compatible with these units. They’ve added it as an option for $295.00 but you would think that after spending that much for AV30’s their internal magnetometers would work better. You can set them both in DG mode and go fly for 15 minutes and they vary from each other after each and are off course. I’ve tried calibrating them and talking to the factory but that hasn’t helped so far. Everything else works great. 

Jim
N46JP - Q200

From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Ben Wilson <4benwilson@...>
Sent: Saturday, November 26, 2022 4:35:31 PM
To: main@Q-List.groups.io <main@Q-List.groups.io>
Subject: Re: [Q-List] AV30
 

Here’s what ACS says:

 

Q: Will this unit work on the AV30 for a DG?

No, this is only used for compatible MGL instruments. The AV-30 is a non-slaved DG, so it does not require a remote magnetometer.”

 

Hmmmm……

 
 

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Adam Radloff
Sent: Saturday, November 26, 2022 12:46 PM
To: main@q-list.groups.io
Subject: Re: [Q-List] AV30

 

Jim, forget it without the magnetometer. I own 2 also and have the same complaint, personally I think uAvionix should provide the magnetometer for free for the poor saps like us that bought them. It's false advertising in my opinion. If you research the web and review the AV-30 Facebook group there are many many complaints. 

 

On Sat, Nov 26, 2022, 11:28 AM Jim Patillo <Logistics_engineering@...> wrote:

Good morning all,

I recently installed two Uavonix AV30’s in my plane and removed all the vacuum stuff. That all worked great and I really like not having vacuum. Each unit is a full blown AHARS.   Having said that, the DG unit cannot hold a heading worth a crap and precesses within 10-15 minutes to where it has to be reset with the compass. I’ve tried calibrating it but no joy for better performance. I can buy an external magnometer to solve this but would rather not. My question is, has anyone else seen this problem and how did you solve it. 


BTW, I hope to pass 2000 hours on my plane this year. It’s been a blast. Keep building only if it’s a little every day. There is actually an end believe it or not, and you will be greatly rewarded! 


Jim
N46JP - Q200






Rick Hole
 

Living in Honduras (where GA is practically non-existent) I don’t have much opportunity to stay current.  I have not dealt with Uavonix but have installed and debugged other  manufacturer’s gear.  Their internal and external magnetometer offerings are not necessarily of the same quality.  The cheapest tech may work well enough for installations where the panel is sparse and no wiring or ferrous metals are within a foot or so of the unit.  My experience is that the external magnetometer is required almost every time. 

Placing the external one is an exercise in black magic.  My installs were Velocities and each project was unique.  Magn. placement in one plane often did not work in the next.  Garmin specs called for a level of isolation such that there was no possible location meeting all the specs.  I had to find the best compromise.

 

How these companies market their goods is based, wouldn’t you think, on what delivers the most profit.  Certainly selling gear that would appear to have a working magn. onboard when it is nearly always useless, well, I would not predict that feature would be helpful for profit in the long run.  Reputation catches up.

 

Having two units side in the panel means the two internals will have different levels of magnetic interference.  I would be surprised if both would calibrate successfully, and even then they could easily be off on some headings.

 

Why not program them to use GPS heading when available?  I am getting foggy on that detail.  One reason would be that GPS takes far longer to react to the heading change.  That could be a hazard in IMC.  I would think that keeping track of the GPS heading in some sort of accumulated error statistic could help verify the integrity of the internal magn. and advise “Warning: magn. data is full of crap!”

 

Comment: I would not rely much on technical support given by a company for a product they have not manufactured…

 

Question:  How is MGL doing these days?  Ten years ago they had gear that looked great.  Pilots who flew with them hated them as having lagging AHARS.  I did several panel upgrades for MGL units to be scrapped as unacceptable. 

Hopefully they have either overcome or faded into the sunset.

 

 

Rick Hole

 

From: main@Q-List.groups.io [mailto:main@Q-List.groups.io] On Behalf Of Jim Patillo
Sent: Sunday, November 27, 2022 7:34 PM
To: main@Q-List.groups.io
Subject: Re: [Q-List] AV30

 

Hey Rick and Kevin, you know they should be giving us the damn things (remote mag) for free. Have you tried working on Uavonix for something to be done about this. I’m about to. 

 

I have two AV30’s and they don’t agree after 15 minutes (when both are set to show DG’s) and forget maintaining the heading. I’ve talked to Uavonix before about calibration and did exactly as they instructed with the figure 8’s etc. but no bueno. The displays and other features are great but the DG feature isn’t reliable as is. I don’t get how they can sell them as a DG with smiles on their faces. As a side, I love the rest of the jam-packed features these little units provide. They have bright and clear screens that work well in direct sun light. Great for clear or tinted canopies. 

 

Jim

N46JP Q200

 



Bruce Crain
 

Do you think it would help to put ferrite beads on coax and wiring coming out of different instruments?
Maybe bring all of your wiring back to a big grounding block?
Seemed to help mine long ago.  Pushing the mic button would affect my auto pilot.  It’s been a long time since I did both of those things and today it is still solid even when hitting the mic button.  RF?  RMI?
Bruce


On Nov 27, 2022, at 3:33 PM, Jim Patillo <Logistics_engineering@...> wrote:


Hey Rick and Kevin, you know they should be giving us the damn things (remote mag) for free. Have you tried working on Uavonix for something to be done about this. I’m about to. 

I have two AV30’s and they don’t agree after 15 minutes (when both are set to show DG’s) and forget maintaining the heading. I’ve talked to Uavonix before about calibration and did exactly as they instructed with the figure 8’s etc. but no bueno. The displays and other features are great but the DG feature isn’t reliable as is. I don’t get how they can sell them as a DG with smiles on their faces. As a side, I love the rest of the jam-packed features these little units provide. They have bright and clear screens that work well in direct sun light. Great for clear or tinted canopies. 

Jim
N46JP Q200


From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Kevin Boddicker <trumanst@...>
Sent: Sunday, November 27, 2022 12:17:15 PM
To: main@q-list.groups.io <main@Q-List.groups.io>
Subject: Re: [Q-List] AV30
 
I too have one AV30 installed. Talked with the rep at OSH. She said if it precesses more than a few degrees in 15 minutes, a remote is needed.
The reason cited was magnetic interference in the panel. I bought it for the DG! Had a bad DG vacuum driven, and my compass goes crazy 
when I excite the alternator. The crazy part is that I will see 10 to 20 degree swing during flight. When I get on the ground and am taxiing to the hanger,
it will be very close to the setting I used before TO. (the times I have checked)
In my case I believe that in flight I am using the GPS and looking at track. Not magnetic. We automatically correct for wind correction and variation.
Even though variation is 1° or so in this area, so I would consider it non existent. With light and variable winds aloft it seems to do better.

Just my theory. I don’t have a bunch of hours on the unit. So you will need to make your own conclusions.


Kevin Boddicker
TriQ 200 N7868B   593 hrs
Luana, IA.

Less hours than Jim P!!! Congrats Jim.



On Nov 26, 2022, at 9:40 PM, Paul Fisher <rv7a.n18pf@...> wrote:

Interesting.  I just ordered one (Black Friday sale).  I really wanted the artificial horizon function, but I was hoping the DG would work as well.  I guess I'll find out!  Although it may have to wait until it warms up a little - working in a cold hangar is no fun!!

Congratulations on 2000 hours Jim!

Paul 

On Sat, Nov 26, 2022, 20:56 Jim Patillo <Logistics_engineering@...> wrote:
Hi Ben and Keith,
Uavonix does sell a remote magnometer compatible with these units. They’ve added it as an option for $295.00 but you would think that after spending that much for AV30’s their internal magnetometers would work better. You can set them both in DG mode and go fly for 15 minutes and they vary from each other after each and are off course. I’ve tried calibrating them and talking to the factory but that hasn’t helped so far. Everything else works great. 

Jim
N46JP - Q200

From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Ben Wilson <4benwilson@...>
Sent: Saturday, November 26, 2022 4:35:31 PM
To: main@Q-List.groups.io <main@Q-List.groups.io>
Subject: Re: [Q-List] AV30
 

Here’s what ACS says:

 

Q: Will this unit work on the AV30 for a DG?

No, this is only used for compatible MGL instruments. The AV-30 is a non-slaved DG, so it does not require a remote magnetometer.”

 

Hmmmm……

 
 

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Adam Radloff
Sent: Saturday, November 26, 2022 12:46 PM
To: main@q-list.groups.io
Subject: Re: [Q-List] AV30

 

Jim, forget it without the magnetometer. I own 2 also and have the same complaint, personally I think uAvionix should provide the magnetometer for free for the poor saps like us that bought them. It's false advertising in my opinion. If you research the web and review the AV-30 Facebook group there are many many complaints. 

 

On Sat, Nov 26, 2022, 11:28 AM Jim Patillo <Logistics_engineering@...> wrote:

Good morning all,

I recently installed two Uavonix AV30’s in my plane and removed all the vacuum stuff. That all worked great and I really like not having vacuum. Each unit is a full blown AHARS.   Having said that, the DG unit cannot hold a heading worth a crap and precesses within 10-15 minutes to where it has to be reset with the compass. I’ve tried calibrating it but no joy for better performance. I can buy an external magnometer to solve this but would rather not. My question is, has anyone else seen this problem and how did you solve it. 


BTW, I hope to pass 2000 hours on my plane this year. It’s been a blast. Keep building only if it’s a little every day. There is actually an end believe it or not, and you will be greatly rewarded! 


Jim
N46JP - Q200






Kevin Boddicker
 

Jim,
Represent us as a group of angry owners. You have my permission to use my name. Sink your teeth in them!

Thanks,
Kevin

On Nov 27, 2022, at 7:33 PM, Jim Patillo <Logistics_engineering@...> wrote:

Hey Rick and Kevin, you know they should be giving us the damn things (remote mag) for free. Have you tried working on Uavonix for something to be done about this. I’m about to. 

I have two AV30’s and they don’t agree after 15 minutes (when both are set to show DG’s) and forget maintaining the heading. I’ve talked to Uavonix before about calibration and did exactly as they instructed with the figure 8’s etc. but no bueno. The displays and other features are great but the DG feature isn’t reliable as is. I don’t get how they can sell them as a DG with smiles on their faces. As a side, I love the rest of the jam-packed features these little units provide. They have bright and clear screens that work well in direct sun light. Great for clear or tinted canopies. 

Jim
N46JP Q200


From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Kevin Boddicker <trumanst@...>
Sent: Sunday, November 27, 2022 12:17:15 PM
To: main@q-list.groups.io <main@Q-List.groups.io>
Subject: Re: [Q-List] AV30
 
I too have one AV30 installed. Talked with the rep at OSH. She said if it precesses more than a few degrees in 15 minutes, a remote is needed.
The reason cited was magnetic interference in the panel. I bought it for the DG! Had a bad DG vacuum driven, and my compass goes crazy 
when I excite the alternator. The crazy part is that I will see 10 to 20 degree swing during flight. When I get on the ground and am taxiing to the hanger,
it will be very close to the setting I used before TO. (the times I have checked)
In my case I believe that in flight I am using the GPS and looking at track. Not magnetic. We automatically correct for wind correction and variation.
Even though variation is 1° or so in this area, so I would consider it non existent. With light and variable winds aloft it seems to do better.

Just my theory. I don’t have a bunch of hours on the unit. So you will need to make your own conclusions.


Kevin Boddicker
TriQ 200 N7868B   593 hrs
Luana, IA.

Less hours than Jim P!!! Congrats Jim.



On Nov 26, 2022, at 9:40 PM, Paul Fisher <rv7a.n18pf@...> wrote:

Interesting.  I just ordered one (Black Friday sale).  I really wanted the artificial horizon function, but I was hoping the DG would work as well.  I guess I'll find out!  Although it may have to wait until it warms up a little - working in a cold hangar is no fun!!

Congratulations on 2000 hours Jim!

Paul 

On Sat, Nov 26, 2022, 20:56 Jim Patillo <Logistics_engineering@...> wrote:
Hi Ben and Keith,
Uavonix does sell a remote magnometer compatible with these units. They’ve added it as an option for $295.00 but you would think that after spending that much for AV30’s their internal magnetometers would work better. You can set them both in DG mode and go fly for 15 minutes and they vary from each other after each and are off course. I’ve tried calibrating them and talking to the factory but that hasn’t helped so far. Everything else works great. 

Jim
N46JP - Q200

From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Ben Wilson <4benwilson@...>
Sent: Saturday, November 26, 2022 4:35:31 PM
To: main@Q-List.groups.io <main@Q-List.groups.io>
Subject: Re: [Q-List] AV30
 

Here’s what ACS says:

 

Q: Will this unit work on the AV30 for a DG?

No, this is only used for compatible MGL instruments. The AV-30 is a non-slaved DG, so it does not require a remote magnetometer.”

 

Hmmmm……

 
 

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Adam Radloff
Sent: Saturday, November 26, 2022 12:46 PM
To: main@q-list.groups.io
Subject: Re: [Q-List] AV30

 

Jim, forget it without the magnetometer. I own 2 also and have the same complaint, personally I think uAvionix should provide the magnetometer for free for the poor saps like us that bought them. It's false advertising in my opinion. If you research the web and review the AV-30 Facebook group there are many many complaints. 

 

On Sat, Nov 26, 2022, 11:28 AM Jim Patillo <Logistics_engineering@...> wrote:

Good morning all,

I recently installed two Uavonix AV30’s in my plane and removed all the vacuum stuff. That all worked great and I really like not having vacuum. Each unit is a full blown AHARS.   Having said that, the DG unit cannot hold a heading worth a crap and precesses within 10-15 minutes to where it has to be reset with the compass. I’ve tried calibrating it but no joy for better performance. I can buy an external magnometer to solve this but would rather not. My question is, has anyone else seen this problem and how did you solve it. 


BTW, I hope to pass 2000 hours on my plane this year. It’s been a blast. Keep building only if it’s a little every day. There is actually an end believe it or not, and you will be greatly rewarded! 


Jim
N46JP - Q200







Adam Radloff
 

ATC gives you vectors in magnetic heading not GPS heading. So it renders the AV-30 DG undependable therefore useless. They advertise it as a DG and that's what I bought it for. I also had an issue with mine with a line showing up on the screen and I had to send it back to have the screen replaced. The honeymoon is over with uAvionix for me.


On Mon, Nov 28, 2022, 12:39 AM Rick Hole via groups.io <r.hole=ieee.org@groups.io> wrote:

Living in Honduras (where GA is practically non-existent) I don’t have much opportunity to stay current.  I have not dealt with Uavonix but have installed and debugged other  manufacturer’s gear.  Their internal and external magnetometer offerings are not necessarily of the same quality.  The cheapest tech may work well enough for installations where the panel is sparse and no wiring or ferrous metals are within a foot or so of the unit.  My experience is that the external magnetometer is required almost every time. 

Placing the external one is an exercise in black magic.  My installs were Velocities and each project was unique.  Magn. placement in one plane often did not work in the next.  Garmin specs called for a level of isolation such that there was no possible location meeting all the specs.  I had to find the best compromise.

 

How these companies market their goods is based, wouldn’t you think, on what delivers the most profit.  Certainly selling gear that would appear to have a working magn. onboard when it is nearly always useless, well, I would not predict that feature would be helpful for profit in the long run.  Reputation catches up.

 

Having two units side in the panel means the two internals will have different levels of magnetic interference.  I would be surprised if both would calibrate successfully, and even then they could easily be off on some headings.

 

Why not program them to use GPS heading when available?  I am getting foggy on that detail.  One reason would be that GPS takes far longer to react to the heading change.  That could be a hazard in IMC.  I would think that keeping track of the GPS heading in some sort of accumulated error statistic could help verify the integrity of the internal magn. and advise “Warning: magn. data is full of crap!”

 

Comment: I would not rely much on technical support given by a company for a product they have not manufactured…

 

Question:  How is MGL doing these days?  Ten years ago they had gear that looked great.  Pilots who flew with them hated them as having lagging AHARS.  I did several panel upgrades for MGL units to be scrapped as unacceptable. 

Hopefully they have either overcome or faded into the sunset.

 

 

Rick Hole

 

From: main@Q-List.groups.io [mailto:main@Q-List.groups.io] On Behalf Of Jim Patillo
Sent: Sunday, November 27, 2022 7:34 PM
To: main@Q-List.groups.io
Subject: Re: [Q-List] AV30

 

Hey Rick and Kevin, you know they should be giving us the damn things (remote mag) for free. Have you tried working on Uavonix for something to be done about this. I’m about to. 

 

I have two AV30’s and they don’t agree after 15 minutes (when both are set to show DG’s) and forget maintaining the heading. I’ve talked to Uavonix before about calibration and did exactly as they instructed with the figure 8’s etc. but no bueno. The displays and other features are great but the DG feature isn’t reliable as is. I don’t get how they can sell them as a DG with smiles on their faces. As a side, I love the rest of the jam-packed features these little units provide. They have bright and clear screens that work well in direct sun light. Great for clear or tinted canopies. 

 

Jim

N46JP Q200

 



hgflier
 

Jim, 
Isn't the precession problem inherent in any gyro-based compass/DG? 
... though I suspect some gyros have less precession than others. 
Isn't installing an external magnetometer the right solution? 
Geoff N82GK 

On Saturday, November 26, 2022 at 08:28:09 AM PST, Jim Patillo <logistics_engineering@...> wrote:


Good morning all,

I recently installed two Uavonix AV30’s in my plane and removed all the vacuum stuff. That all worked great and I really like not having vacuum. Each unit is a full blown AHARS.   Having said that, the DG unit cannot hold a heading worth a crap and precesses within 10-15 minutes to where it has to be reset with the compass. I’ve tried calibrating it but no joy for better performance. I can buy an external magnometer to solve this but would rather not. My question is, has anyone else seen this problem and how did you solve it. 


BTW, I hope to pass 2000 hours on my plane this year. It’s been a blast. Keep building only if it’s a little every day. There is actually an end believe it or not, and you will be greatly rewarded! 


Jim
N46JP - Q200


Jay Scheevel
 

I suspect it is a design and/or magnetometer-quality issue. They have decided to fit everything in a tight space, and with everything else that is going on in there electrically, it must be an impossible balancing act.

 

I have a Dynon Skyview with a separate ADHRS unit (which contains the magnetometer). This is located remote from the EFIS, but not very far away and is still behind the panel and I have not had any trouble with stable magnetic compass using this installation. Even so, Dynon offers a separate magnetometer for problematic installations. Dynon’s setup also allows for installing a second ADHRS unit for redundancy in a stack, although I have not done this.

 

I think that uAvionix wanted to make a splash by doing everything in a very small self-contained unit and they have found out by now that stray EM energy is impossible to block within a small distance of a pile of electronics, screens and power supplies.  They should have anticipated this in the design phase. Sounds like a marketing-department imposed constraint.

 

You may be able to mitigate the “precession” by identifying any component that changes its EM emission profile over time. The only one of these I can think of is the flat screen, as it may build up static electricity on it’s surface over time. Maybe finding a way to discharge this, like a small bare ground wire wrapped around the perimeter of the screen? Just thinking out loud here.

 

Cheers,

Jay

 

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of hgflier via groups.io
Sent: Friday, December 2, 2022 10:26 AM
To: main@Q-List.groups.io
Subject: Re: [Q-List] AV30

 

Jim, 

Isn't the precession problem inherent in any gyro-based compass/DG? 
... though I suspect some gyros have less precession than others. 
Isn't installing an external magnetometer the right solution? 
Geoff N82GK 

 

On Saturday, November 26, 2022 at 08:28:09 AM PST, Jim Patillo <logistics_engineering@...> wrote:

 

 

Good morning all,

I recently installed two Uavonix AV30’s in my plane and removed all the vacuum stuff. That all worked great and I really like not having vacuum. Each unit is a full blown AHARS.   Having said that, the DG unit cannot hold a heading worth a crap and precesses within 10-15 minutes to where it has to be reset with the compass. I’ve tried calibrating it but no joy for better performance. I can buy an external magnometer to solve this but would rather not. My question is, has anyone else seen this problem and how did you solve it. 


BTW, I hope to pass 2000 hours on my plane this year. It’s been a blast. Keep building only if it’s a little every day. There is actually an end believe it or not, and you will be greatly rewarded! 


Jim
N46JP - Q200


Mike Dwyer
 

Hi Jim,
I ran an early Dynon D10 EFIS for many years.  It had an internal magnetometer and of course, Gyros.  No GPS attached to it.
The heading never precessed a bit.    I wonder if the uAvionix is even using the internal magnetometer to update the heading at all.
( Almost done with a Dynon Skyview install into a Velocity now).
Mike Dwyer

Q200 Website: http://goo.gl/V8IrJF


On Fri, Dec 2, 2022 at 12:26 PM hgflier via groups.io <hgflier=yahoo.com@groups.io> wrote:
Jim, 
Isn't the precession problem inherent in any gyro-based compass/DG? 
... though I suspect some gyros have less precession than others. 
Isn't installing an external magnetometer the right solution? 
Geoff N82GK 

On Saturday, November 26, 2022 at 08:28:09 AM PST, Jim Patillo <logistics_engineering@...> wrote:


Good morning all,

I recently installed two Uavonix AV30’s in my plane and removed all the vacuum stuff. That all worked great and I really like not having vacuum. Each unit is a full blown AHARS.   Having said that, the DG unit cannot hold a heading worth a crap and precesses within 10-15 minutes to where it has to be reset with the compass. I’ve tried calibrating it but no joy for better performance. I can buy an external magnometer to solve this but would rather not. My question is, has anyone else seen this problem and how did you solve it. 


BTW, I hope to pass 2000 hours on my plane this year. It’s been a blast. Keep building only if it’s a little every day. There is actually an end believe it or not, and you will be greatly rewarded! 


Jim
N46JP - Q200


Jim Patillo
 

Good morning Guys,

I called a friend at Uavionix yesterday and explained what was going on. He took charge of my problem right away, so hopefully I will have some news on this shortly. Andrew is the Director of Operations for Uavionix North America and a real nice guy. I will get to the bottom of this  

Other than the DG issue, I love these little AHARS.

Jim 
N46JP - Q200


Paul Fisher
 

I'm really interested Jim.  I installed my AV-30 yesterday.  It's been too windy to fly it, but everything seems to be working on the ground.  I'm really looking forward to seeing it in action!

Paul 

On Sat, Dec 3, 2022, 12:46 Jim Patillo <Logistics_engineering@...> wrote:

Good morning Guys,

I called a friend at Uavionix yesterday and explained what was going on. He took charge of my problem right away, so hopefully I will have some news on this shortly. Andrew is the Director of Operations for Uavionix North America and a real nice guy. I will get to the bottom of this  

Other than the DG issue, I love these little AHARS.

Jim 
N46JP - Q200


Ben Wilson
 

Jim,

Hope you don’t feel attacked bringing-up issue with your AV30’s.

Your airplane is beautiful, and you’ve been flying it for a long time.

These “real-life stories” really make the list valuable for the new guys.

Ben

 

 

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Jim Patillo
Sent: Saturday, December 3, 2022 11:46 AM
To: main@Q-List.groups.io
Subject: Re: [Q-List] AV30

 

Good morning Guys,

I called a friend at Uavionix yesterday and explained what was going on. He took charge of my problem right away, so hopefully I will have some news on this shortly. Andrew is the Director of Operations for Uavionix North America and a real nice guy. I will get to the bottom of this  

Other than the DG issue, I love these little AHARS.

Jim 
N46JP - Q200


 

Thank you Jim,
I hope something good comes from your effort. 
Obviously a correctly working DG is a BIG deal especially when theirs it's the only one installed.
Thanks again


---------- Original Message ----------
From: "Jim Patillo" <Logistics_engineering@...>
To: main@Q-List.groups.io
Subject: Re: [Q-List] AV30
Date: Sat, 03 Dec 2022 10:46:06 -0800

Good morning Guys,

I called a friend at Uavionix yesterday and explained what was going on. He took charge of my problem right away, so hopefully I will have some news on this shortly. Andrew is the Director of Operations for Uavionix North America and a real nice guy. I will get to the bottom of this  

Other than the DG issue, I love these little AHARS.

Jim 
N46JP - Q200