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Garmin 396 XM weather I have a three year old GPS 396 and recently subscribed to xm weahter. Have experienced extreme difficulty getting the weather info. On a few cross-country flights exceeding two hours, it never got beyond the "acquiring data" stage. Occasionally (but not often) the data will load and weather info will display within ten minutes. Any ideas? Jim Mahoney

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Posted on Jan 02, 2017

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SOURCE: XM radio sounds like crap!!!

I have my XM antenna on top of the cab immediately above my head and the Garmin inside the cab near the front speaker. So that would be another option in case you don't want to or don't have the cable to put one in the back. Have experienced no problems as of yet. Sound seems fine with my arrangement.

Posted on Mar 02, 2008

  • 1 Answer


I have both a 660 and problems

Posted on May 04, 2008

Agent Ken
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SOURCE: Sirius vs. XM

Hello pdweidner,

The CN-NVD905U is fully satellite ready and is compatible with both Sirius and XM. To change services you will need to purchase and install a XM compatible tuner and antenna to replace the Sirius tuner and subscribe to XM service.

Best regards,
Go Ahead. Use Us.

Posted on May 13, 2008

  • 8 Answers

SOURCE: xm will not work

i understand that you're only getting preview channels..and had the radio for almost 3 years....yes, they might be correct that your radio was broken already...but, have you ever asked them to refresh the signal into your radio? If you want you can do it online at all you to do is to key in your 8-digit radio i.d(can be found on ch. 0) then click'll give u the activation instructions...that u need to follow faithfully..if this won't work..i'll get back to you next week..Godbless!

Posted on Sep 08, 2008

SOURCE: xm stopped working display says "antenna"

Broken antenna cable. Likely you have a kink or worn thru point on the wire somewhere.

Posted on Sep 17, 2008

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Battery went dead on Garmin 396. The unit worked with airplane power in GPS mode but displays "waiting for data" on Nexrad Radar. I have downloaded version 5.30 I should alao mention that...

You indicated that the battery went dead. Does the new battery work correctly? That is, does it show a full charge when you've had it plugged in overnight and disconnect the power? Try plugging it into AC power overnight and verify that the battery is accepting and holding a full charge. If it isn't, then unplug and turn the unit on and allow the battery to run all the way down. Then charge it fully. This resets the charge indicator. You may have to repeat it once. I did this and was able to again show that both my new and my old battery were working o.k. They should show about 8.1 V fully charged.
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To verify that the XM antenna is connected: Turn unit off. Connect the XM receiver. Simultaneously press "on" and "enter" keys- hold both until data screen appears, which takes about 5 seconds. Second line from bottom indicates if it is seeing the XM receiver. This helps isolate where the problem is- i.e. if you have a faulty receiver, bad connection or a software problem. The only contact I know of now is Garmin 800-800-1020. They can give you the XM contact if the problem is on that side of the unit. There is other data here which may be of interest to you on this page. Turn unit off to close this window.
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The GXM 40 Smart Antenna (010-00730-00) is used to receive weather and audio service from XM satellite radio. For details on XM services please visit our XM webpage.

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Hello pdweidner,

The CN-NVD905U is fully satellite ready and is compatible with both Sirius and XM. To change services you will need to purchase and install a XM compatible tuner and antenna to replace the Sirius tuner and subscribe to XM service.

Best regards,
Go Ahead. Use Us.

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