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Old 11-08-2018, 09:57 PM   #1
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Thumbs up OnStar Device for my RV

Im looking for a device like on star to install in my RV, Sunseeker 2860 2018. I have a Chevy express 4500 body. We have ATT for our cell service but we get dead spots when we travel. If we ever break down we will have no way to call for help. Any device that works in similar fashion will help.
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Old 11-08-2018, 10:31 PM   #2
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Originally Posted by tobysails View Post
Im looking for a device like on star to install in my RV, Sunseeker 2860 2018. I have a Chevy express 4500 body. We have ATT for our cell service but we get dead spots when we travel. If we ever break down we will have no way to call for help. Any device that works in similar fashion will help.
Switch to Verizon or Sprint . Seriously there are several cell phone signal boosters for RVs. Here is a link to one - weboost https://www.weboost.com/boosters/veh...YaArtJEALw_wcB
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Old 11-08-2018, 10:43 PM   #3
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Why not buy an Onstar kit?


https://www.walmart.com/ip/Brandmoti...waAtJgEALw_wcB
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Old 11-09-2018, 12:25 AM   #4
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OnStar is cellular based so its not guaranteed to work in all locations just like a cell phone.
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Old 11-09-2018, 12:55 AM   #5
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OnStar Service works using cellular or other wireless phone networks in the continental United States, Alaska, Hawaii and Canada, as well as the Global Positioning System ("GPS") satellite network. OnStar services are not available everywhere, particularly in enclosed or remote areas.


https://en.wikipedia.org/wiki/OnStar
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Old 11-09-2018, 12:55 AM   #6
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AT&T is second only to Verizon in cell coverage. I have gotten coverage in the past year or two where I did not have an AT&T signal before so they are almost equal to Verizon coverage. Neither cover the US 100%. Out west or in mountainous areas both will have dead spots, but both will also have nearly continuous coverage along interstates and major highways.

I don't believe getting an Onstar type system is necessary if you have cell coverage. Weboost makes great RV based cell signal boosters for weak areas... but you still need a signal to boost. Visit their webpage for details and prices...
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Old 11-09-2018, 01:55 AM   #7
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If you peruse the wikipedia link above you'll find that:

- "Blondestar" uses CDMA, which is predominatly Verizon with Sprint and US cellular being minor players, especially outside urban areas. So if you happen to be in an area where even Verizon doesn't have coverage On-star is of no help.

- The aftermarket On-star mirrors have been discontinued in 2014, apparently they didn't work well in RVs and some other vehicles with steep windshields. Currently On-star is only available on GM products.

Personally I found the marketing highly questionable, with TV commercials showing a vehicle having an accident in the middle of nowhere and On-star coming to the rescue. And people fell for it, I used to hang out on Death Valley related message boards when traveling there frequently. Some guy came across a broken down vehicle on Hunter Mountain (not a very busy area) and the occupants initially refused help because they already had "pressed the On-star button". Nevermind they didn't get any response....

If you really feel the need to cover all the bases a satellite phone is the solution.
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Old 11-09-2018, 01:42 PM   #8
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Hand held cell phones have 0.5 to 1 watt of transmit power depending on manufacturer and model. iPhones have a maximum of 600 Milliwatts (0.6 Watts) of transmit power for example.

Car cell phones (like Onstar) have a maximum of 3 watts of transmit power.

The ACTUAL power used varies by the distance to the closest cell phone tower and the quality of the two way signal.

In rural areas, Onstar will connect MANY miles away from where the most powerful hand held cell phone would connect.
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Old 11-09-2018, 02:07 PM   #9
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Car cell phones (like Onstar) have a maximum of 3 watts of transmit power.
Herk,

can you supply any links to an official site that talks about the 3 watt transmit signal?

I found 3 unofficial sites, but those are not from the factory...
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Old 11-09-2018, 03:00 PM   #10
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Herk,

can you supply any links to an official site that talks about the 3 watt transmit signal?

I found 3 unofficial sites, but those are not from the factory...
https://auto.howstuffworks.com/onstar2.htm

Lou
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