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XM Weather Delays

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garrys(at)tampabay.rr.com
Guest

Posted: Tue Jun 02, 2009 3:42 pm Post subject: XM Weather Delays

I have an XM "aviator lite" weather subscription,  received by a WX WORX receiver and interfaced to my Grand Rapids  EFIS.  It routinely takes 12 minutes or so after I've fired up the avionics  before I get a radar picture.  Then when flying on a long cross country I  sometimes see messages saying "radar data 21 minutes old".  I thought XM  sent out refreshed packages no more than 5 minutes apart.  My friend has a  Garmin 496 and he says he acquires a radar picture within 2 minutes and never  sees anything older than 5 minutes.

  

 What gives with my system?  In reading the  latest issue of Kitplane magazine they say that Garmin has their own "built in"  receiver, whereas I have a separate stand-alone box.  Could there be  something inferior or malfunctioning with my WX WORX receiver?  Has anyone  had a similar experience?

  

 Garry Stout

 RV-7A

 Tampa, FL

  

    [quote][b]

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d-burton(at)comcast.net
Guest

Posted: Tue Jun 02, 2009 3:55 pm Post subject: XM Weather Delays

I have a Garmin 396 and it acts exactly the same.  I believe that Garmin states the Doppler data can be 20 minutes late, and when I’m dodging around weather I can tell that it definitely is.  Not perfect but still worth the expense to me…  

   

DavidB  

Flying 172/182  

Building RV6  

   

         

  

From: owner-rv-list-server(at)matronics.com [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Garry

 Sent: Tuesday, June 02, 2009 4:34 PM

 To: rv-list(at)matronics.com

 Subject: XM Weather Delays  

  

     

I have an XM "aviator lite" weather subscription, received by a WX WORX receiver and interfaced to my Grand Rapids EFIS.  It routinely takes 12 minutes or so after I've fired up the avionics before I get a radar picture.  Then when flying on a long cross country I sometimes see messages saying "radar data 21 minutes old".  I thought XM sent out refreshed packages no more than 5 minutes apart.  My friend has a Garmin 496 and he says he acquires a radar picture within 2 minutes and never sees anything older than 5 minutes.  

    

   

    

What gives with my system?  In reading the latest issue of Kitplane magazine they say that Garmin has their own "built in" receiver, whereas I have a separate stand-alone box.  Could there be something inferior or malfunctioning with my WX WORX receiver?  Has anyone had a similar experience?  

    

   

    

Garry Stout  

    

RV-7A  

    

Tampa, FL  

    

   

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       [quote][b]

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Bret Smith

Joined: 09 Jan 2006
Posts: 178
Location: Mineral Bluff, GA

Posted: Tue Jun 02, 2009 4:24 pm Post subject: XM Weather Delays

Garry,

  

 I would verify that your XM antenna has a clear view to the sky and that  there are no problems with the wiring and connections.  I have the same  setup except using an AFS EFIS/EM and I get refreshes every 5  minutes.

  

 Bret Smith

 RV-9A N16BL

 Blue Ridge, Ga

 www.FlightInnovations.com

  



   From: owner-rv-list-server(at)matronics.com  [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of  Garry

Sent: Tuesday, June 02, 2009 7:34 PM

To:  rv-list(at)matronics.com

Subject: XM Weather  Delays

 

 I have an XM "aviator lite" weather subscription,  received by a WX WORX receiver and interfaced to my Grand Rapids  EFIS.  It routinely takes 12 minutes or so after I've fired up the avionics  before I get a radar picture.  Then when flying on a long cross country I  sometimes see messages saying "radar data 21 minutes old".  I thought XM  sent out refreshed packages no more than 5 minutes apart.  My friend has a  Garmin 496 and he says he acquires a radar picture within 2 minutes and never  sees anything older than 5 minutes.

  

 What gives with my system?  In reading the  latest issue of Kitplane magazine they say that Garmin has their own "built in"  receiver, whereas I have a separate stand-alone box.  Could there be  something inferior or malfunctioning with my WX WORX receiver?  Has anyone  had a similar experience?

  

 Garry Stout

 RV-7A

 Tampa, FL

  

[quote]



href="http://www.matronics.com/Navigator?RV-List">http://www.matronics.com/Navigator?RV-List

href="http://forums.matronics.com">http://forums.matronics.com

href="http://www.matronics.com/contribution">http://www.matronics.com/c

[b]

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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_________________
Bret Smith
RV-9A (Emp)

Bill Schlatterer

Joined: 09 Jan 2006
Posts: 195

Posted: Tue Jun 02, 2009 6:35 pm Post subject: XM Weather Delays

Bret, according to the AOPA course on Weather Nexrad, some  units won't refresh for considerable periods if there is no activity close  by.  Normal refresh should be less than 6 minutes and less than 2 if there  are cells nearby.  ( just what it says )   My Garmin 396 is  never more than 6 minutes old when there is any weather nearby and  usually less.

  

 Bill S

 7a finishing



   From: owner-rv-list-server(at)matronics.com  [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Bret  Smith

Sent: Tuesday, June 02, 2009 7:23 PM

To:  rv-list(at)matronics.com

Subject: RE: XM Weather  Delays

 

 Garry,

  

 I would verify that your XM antenna has a clear view to the sky and that  there are no problems with the wiring and connections.  I have the same  setup except using an AFS EFIS/EM and I get refreshes every 5  minutes.

  

 Bret Smith

 RV-9A N16BL

 Blue Ridge, Ga

 www.FlightInnovations.com

  



   From: owner-rv-list-server(at)matronics.com  [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of  Garry

Sent: Tuesday, June 02, 2009 7:34 PM

To:  rv-list(at)matronics.com

Subject: XM Weather  Delays

 

 I have an XM "aviator lite" weather subscription,  received by a WX WORX receiver and interfaced to my Grand Rapids  EFIS.  It routinely takes 12 minutes or so after I've fired up the avionics  before I get a radar picture.  Then when flying on a long cross country I  sometimes see messages saying "radar data 21 minutes old".  I thought XM  sent out refreshed packages no more than 5 minutes apart.  My friend has a  Garmin 496 and he says he acquires a radar picture within 2 minutes and never  sees anything older than 5 minutes.

  

 What gives with my system?  In reading the  latest issue of Kitplane magazine they say that Garmin has their own "built in"  receiver, whereas I have a separate stand-alone box.  Could there be  something inferior or malfunctioning with my WX WORX receiver?  Has anyone  had a similar experience?

  

 Garry Stout

 RV-7A

 Tampa, FL

  

[quote]



href="http://www.matronics.com/Navigator?RV-List">http://www.matronics.com/Navigator?RV-List

href="http://forums.matronics.com">http://forums.matronics.com

href="http://www.matronics.com/contribution">http://www.matronics.com/c





href="http://www.matronics.com/Navigator?RV-List">http://www.matronics.com/Navigator?RV-List

href="http://forums.matronics.com">http://forums.matronics.com

href="http://www.matronics.com/contribution">http://www.matronics.com/c

[b]

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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robin1(at)mrmoisture.com
Guest

Posted: Tue Jun 02, 2009 7:48 pm Post subject: XM Weather Delays

My 496 refreshes so quickly when lightning strikes my Garmin says OUCH!.  

   

Robin  

Do Not Archive  

       

From: owner-rv-list-server(at)matronics.com [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Bill Schlatterer

 Sent: Tuesday, June 02, 2009 6:50 PM

 To: rv-list(at)matronics.com

 Subject: RE: XM Weather Delays  

  

  

   

Bret, according to the AOPA course on Weather Nexrad, some units won't refresh for considerable periods if there is no activity close by.  Normal refresh should be less than 6 minutes and less than 2 if there are cells nearby.  ( just what it says )   My Garmin 396 is never more than 6 minutes old when there is any weather nearby and usually less.  

   

Bill S  

7a finishing  

       

  

From: owner-rv-list-server(at)matronics.com [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Bret Smith

 Sent: Tuesday, June 02, 2009 7:23 PM

 To: rv-list(at)matronics.com

 Subject: RE: XM Weather Delays  

Garry,  

   

I would verify that your XM antenna has a clear view to the sky and that there are no problems with the wiring and connections.  I have the same setup except using an AFS EFIS/EM and I get refreshes every 5 minutes.    

   

  

Bret Smith  

RV-9A N16BL  

Blue Ridge, Ga  

www.FlightInnovations.com    

   

  

       

  

From: owner-rv-list-server(at)matronics.com [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Garry

 Sent: Tuesday, June 02, 2009 7:34 PM

 To: rv-list(at)matronics.com

 Subject: XM Weather Delays    

I have an XM "aviator lite" weather subscription, received by a WX WORX receiver and interfaced to my Grand Rapids EFIS.  It routinely takes 12 minutes or so after I've fired up the avionics before I get a radar picture.  Then when flying on a long cross country I sometimes see messages saying "radar data 21 minutes old".  I thought XM sent out refreshed packages no more than 5 minutes apart.  My friend has a Garmin 496 and he says he acquires a radar picture within 2 minutes and never sees anything older than 5 minutes.  

    

   

    

What gives with my system?  In reading the latest issue of Kitplane magazine they say that Garmin has their own "built in" receiver, whereas I have a separate stand-alone box.  Could there be something inferior or malfunctioning with my WX WORX receiver?  Has anyone had a similar experience?  

    

   

    

Garry Stout  

    

RV-7A  

    

Tampa, FL  

    

   

   	  Quote: 	
		    href="http://www.matronics.com/Navigator?RV-List">http://www.matronics.com/Navigator?RV-Listhref="http://forums.matronics.com">http://forums.matronics.comhref="http://www.matronics.com/contribution">http://www.matronics.com/c  href="http://www.matronics.com/Navigator?RV-List">http://www.matronics.com/Navigator?RV-Listhref="http://forums.matronics.com">http://forums.matronics.comhref="http://www.matronics.com/contribution">http://www.matronics.com/c 	
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9  

No virus found in this incoming message.

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 06/02/09 17:53:00  

      [quote][b]

- The Matronics RV-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Bret Smith

Joined: 09 Jan 2006
Posts: 178
Location: Mineral Bluff, GA

Posted: Wed Jun 03, 2009 4:54 am Post subject: XM Weather Delays

Thanks Bill,

  

 You would think that XM would communicate these  facts in their own documentation so we would not have to rely on AOPA for the  REAL facts.

  

 Bret

 [quote]   ---

- The Matronics RV-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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_________________
Bret Smith
RV-9A (Emp)

Bill Schlatterer

Joined: 09 Jan 2006
Posts: 195

Posted: Wed Jun 03, 2009 5:36 pm Post subject: XM Weather Delays

Sure but remember that facts are only good on the day they  are tested and printed.  Next day,.... different system, different  software, different facts   Truth is that whatever weather you are  getting is invaluable compared to anything short of real radar and a  stormscope!

  

 Bill S



   From: owner-rv-list-server(at)matronics.com  [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Bret  Smith

Sent: Wednesday, June 03, 2009 7:47 AM

To:  rv-list(at)matronics.com

Subject: Re: XM Weather  Delays

 

 Thanks Bill,

  

 You would think that XM would communicate these  facts in their own documentation so we would not have to rely on AOPA for the  REAL facts.

  

 Bret

 [quote]   ---

- The Matronics RV-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Bill Schlatterer

Joined: 09 Jan 2006
Posts: 195

Posted: Wed Jun 03, 2009 6:58 pm Post subject: XM Weather Delays

Not sure if correct but this seems right!  Couldn't  find it back on the AOPA site but found this from a report on the older Garmin  units.

  

 "There is a wide  variety of weather info sent to the unit other than just the NEXRAD radar  images, and they all update at different time intervals. The NEXRAD data is  updated on a 5 minute cycle and storm cells are updated every 1.25 minutes. On  the other end of the spectrum, the Satellite Mosaic updates every 15 minutes and  the Marine Warnings update every 20 minutes. "

  

 Bill  S

 

 

   From: owner-rv-list-server(at)matronics.com  [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Bill  Schlatterer

Sent: Wednesday, June 03, 2009 8:34 PM

To:  rv-list(at)matronics.com

Subject: RE: XM Weather  Delays

 

 Sure but remember that facts are only good on the day they  are tested and printed.  Next day,.... different system, different  software, different facts   Truth is that whatever weather you are  getting is invaluable compared to anything short of real radar and a  stormscope!

  

 Bill S



   From: owner-rv-list-server(at)matronics.com  [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Bret  Smith

Sent: Wednesday, June 03, 2009 7:47 AM

To:  rv-list(at)matronics.com

Subject: Re: XM Weather  Delays

 

 Thanks Bill,

  

 You would think that XM would communicate these  facts in their own documentation so we would not have to rely on AOPA for the  REAL facts.

  

 Bret

 [quote]   ---

- The Matronics RV-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Bret Smith

Joined: 09 Jan 2006
Posts: 178
Location: Mineral Bluff, GA

Posted: Thu Jun 04, 2009 5:29 am Post subject: XM Weather Delays

Bill,

  

 This makes sense but is irrelevant to me as I have  an indicator in my lower right corner of the screen that "flashes" one of four  XM states:  

XM Diagnostics 

The XM status message and logo will indicated the current XM  receiver status using the following messages: 

Screen has found the receiver and is connecting to it. 

Screen is receiving the XM data for the first time since turning  on. 

The XM/WX letters will flash from green to white as data is being  received. 

The receiver has lost communications and is resetting the unit. 

The WxWorx receiver does not distinguish between the different data types it  is downloading.... Bret Smith

RV-9A N16BL

Blue Ridge,  GA

www.FlightInnovations.com

 [quote]   ---

- The Matronics RV-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV-List

_________________
Bret Smith
RV-9A (Emp)

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