Globalstar sat phone help - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > General Interest > General Discussion (sailing related)
 Not a Member? 


Reply
 
LinkBack Thread Tools
  #1  
Old 01-07-2009
Junior Member
 
Join Date: Apr 2005
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Roberthussey is on a distinguished road
Globalstar sat phone help

I have a friend on a cruise in the Caribbean trying to use his
Globalstar sat phone for email. Looking at the sat availability for
his area he can only see a bird for about 10 or 15 minutes at one
time. He is using Vista on his laptop. When he gets a connection to
the satellite it starts the data exchange but when he looses sight of
the satellite the connection is lost and the computer crashes going to
the blue screen of death. The whole experience is quite frustrating to
say the least. Does anyone here know anything about this problem ?
should the phone be maintaining a data connection to the software and
then doing a "hand-off" to the next satellite as it comes into
view ?
Any help appreciated !
Bob
Reply With Quote Share with Facebook
  #2  
Old 01-07-2009
Junior Member
 
Join Date: Jun 2007
Posts: 26
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Leopold is on a distinguished road
Remember one thing about technology : it is very dumb.

Do not expect anything intelligent from a satellite.

Two things you can try.

1) separate your transmission into parts. this way your transmission will make it eventually.

2) slow the transmit rate of the modem as much as possible. MAYBE a slow transmit rate would give the time to the modem to leap to the other satellite.

-Léopold
have fun
Reply With Quote Share with Facebook
  #3  
Old 01-07-2009
camaraderie's Avatar
moderate?
 
Join Date: May 2002
Location: East Coast
Posts: 13,877
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 15
camaraderie is a jewel in the rough camaraderie is a jewel in the rough camaraderie is a jewel in the rough
Globalstar's satellite array is failing and in the process of being replaced. This is well publicized.You simply cannot keep a long connection with Globalstar these days. This is why they are offering BELOW cellular phone type rates for the time being and offering unlimited calling. You need unlimited calling to bet through and finish a conversation! There is NO fix until the satellite array is in place.

Here's their notice to customers:
Constellation Update and Advisory
IMPORTANT INFORMATION Concerning the Globalstar Satellite Constellation Two-Way Voice and Duplex Data Services - Temporary Limitations
As previously announced, many Globalstar satellites are experiencing an anomaly resulting in degraded performance of the amplifiers for the S-band satellite communications antenna. The anomaly is adversely affecting two-way voice and data services. Customer service continues to be available, but at certain times at any given location it may take substantially longer to establish calls and the duration of calls may be limited. Until the new second-generation Globalstar satellite constellation is operational, Globalstar is offering its Optimum Satellite Availability T-tool (OSAT) on its Internet site, which subscribers may use to predict when one or more unaffected satellites will be overhead at any specific geographic location.

Simplex Data and Asset Tracking Services – Fully Operational
The Globalstar constellation is completely stable and fully operational in supporting Globalstar Simplex data satellite products and asset tracking services. Recent monitoring tests indicate that the Simplex data network is currently operating at a successful transmission rate of greater than 99 percent. And because Globalstar's Simplex data products are also designed to work with the second-generation satellite constellation, they are expected to provide customers with years of high quality reliable service well into the next decade and beyond.
Spare Satellites Launched and Second-Generation Satellites Scheduled for 2009
Globalstar has launched eight spare satellites for its existing constellation with a view to reducing the gaps in its two-way voice and data services pending commercial availability of its second-generation satellite constellation, scheduled for initial launch in the second half of 2009. Globalstar will continue to operate its existing satellite constellation to provide and support services until the second-generation Globalstar satellites are available for service.”





Suggest your friend finds a wifi connection somewhere. Also...when planning to use globalstar he should use this sat availability planning tool:

Globalstar USA :: Planning tool OSAT
__________________
No longer posting. Reach me by PM!
Reply With Quote Share with Facebook
  #4  
Old 01-07-2009
camaraderie's Avatar
moderate?
 
Join Date: May 2002
Location: East Coast
Posts: 13,877
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 15
camaraderie is a jewel in the rough camaraderie is a jewel in the rough camaraderie is a jewel in the rough
Just a little follow up. I used their planner and pretended I was near Grenada and here is ALL the availabiity for the next 24 hours. First column is start of availability...2nd is end. As you can see...connections are rarely for even more than 15 minutes and there are gaps of up to 1.5 hours in availability.
Jan 6, 2009 8:11:06 PM Jan 6, 2009 8:21:36 PM
Jan 6, 2009 8:45:16 PM Jan 6, 2009 9:00:46 PM
Jan 6, 2009 9:21:16 PM Jan 6, 2009 9:36:26 PM
Jan 6, 2009 10:58:16 PM Jan 6, 2009 11:13:46 PM
Jan 6, 2009 11:25:36 PM Jan 6, 2009 11:33:26 PM
Jan 6, 2009 11:35:26 PM Jan 6, 2009 11:48:46 PM
Jan 7, 2009 12:34:36 AM Jan 7, 2009 12:49:46 AM
Jan 7, 2009 1:01:46 AM Jan 7, 2009 1:09:26 AM
Jan 7, 2009 1:35:36 AM Jan 7, 2009 1:48:56 AM
Jan 7, 2009 1:50:36 AM Jan 7, 2009 1:58:56 AM
Jan 7, 2009 2:11:46 AM Jan 7, 2009 2:27:26 AM
Jan 7, 2009 2:40:56 AM Jan 7, 2009 2:45:06 AM
Jan 7, 2009 3:47:26 AM Jan 7, 2009 4:02:36 AM
Jan 7, 2009 4:25:26 AM Jan 7, 2009 4:39:46 AM
Jan 7, 2009 6:01:06 AM Jan 7, 2009 6:15:46 AM
Jan 7, 2009 6:26:16 AM Jan 7, 2009 6:38:46 AM
Jan 7, 2009 7:38:06 AM Jan 7, 2009 7:53:16 AM
Jan 7, 2009 8:03:26 AM Jan 7, 2009 8:14:16 AM
Jan 7, 2009 9:13:56 AM Jan 7, 2009 9:28:56 AM
Jan 7, 2009 9:40:06 AM Jan 7, 2009 9:50:36 AM
Jan 7, 2009 9:52:36 AM Jan 7, 2009 10:04:26 AM
Jan 7, 2009 10:51:26 AM Jan 7, 2009 11:06:46 AM
Jan 7, 2009 11:17:56 AM Jan 7, 2009 11:26:26 AM
Jan 7, 2009 11:27:46 AM Jan 7, 2009 11:41:16 AM
Jan 7, 2009 11:51:36 AM Jan 7, 2009 12:06:16 PM
Jan 7, 2009 12:54:46 PM Jan 7, 2009 1:02:36 PM
Jan 7, 2009 1:28:06 PM Jan 7, 2009 1:41:26 PM
__________________
No longer posting. Reach me by PM!

Last edited by camaraderie; 01-07-2009 at 08:38 PM.
Reply With Quote Share with Facebook
  #5  
Old 01-08-2009
Junior Member
 
Join Date: Apr 2005
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Roberthussey is on a distinguished road
thanks for everything

we have been using the program you suggested to determine best time to connect to sat. The problem is that Vista keeps crashing and then you do not know what has been sent,and also by the time you reboot the laptop the sat is gone. It seems that talking to others using XP they do not have these problems. Boat is presently in South Caicos and are heading to Luperon today, if weather holds and will continue to Puerto Rico. They hope to get a copy of Linux there and see if that will solve the Vista problem. The best solution would be a work around with Vista if one exists.

Thanks again for your information, Bob
Reply With Quote Share with Facebook
  #6  
Old 01-08-2009
camaraderie's Avatar
moderate?
 
Join Date: May 2002
Location: East Coast
Posts: 13,877
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 15
camaraderie is a jewel in the rough camaraderie is a jewel in the rough camaraderie is a jewel in the rough
Well...probably will have to wait for PR for a fix...not much in Luperon...but there is an internet cafe at the phone office.
Ponce on the south shore of PR is probably the first city where computer services can be found. Nice town!!
__________________
No longer posting. Reach me by PM!
Reply With Quote Share with Facebook
  #7  
Old 01-08-2009
Senior Member
 
Join Date: Dec 2007
Posts: 286
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 7
AlanBrown is on a distinguished road
Good in-depth information! I am now convinced not to re-activate my Globalstar for my summer cruise through the Bahamas. Instead, I will start looking into purchasing a BATELCO sim card and re-activating my Pocketmail text messenger.
Reply With Quote Share with Facebook
  #8  
Old 01-08-2009
Sapperwhite's Avatar
Not So Senior Member
 
Join Date: Oct 2006
Location: Maryland
Posts: 2,504
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
Sapperwhite has a spectacular aura about Sapperwhite has a spectacular aura about Sapperwhite has a spectacular aura about
Cam beat me to it with the Globalstar availability.

This is another example of why not to buy Globalstar. My Globalstar gets horrible coverage even in Maryland, but my Iridium has a full signal always.

I can't help the OP with his issue, but this is a warning to others in the market for sat phone comms. Do your homework on the systems and expect to pay for good service. There is a reason why Globalstar service is cheap, because it is unavailable most of the time.

I am not affiliated with any satellite phone manufacturer or service provider other than being a customer and having experience with both Globalstar and Iridium.

Constellation Update and Advisory: News Center: Globalstar Corporate

Globalstar is only good for simplex data (Spot Personal Tracker), and that still has coverage limitations.
__________________
Dictated, but not read.
Reply With Quote Share with Facebook
  #9  
Old 01-08-2009
camaraderie's Avatar
moderate?
 
Join Date: May 2002
Location: East Coast
Posts: 13,877
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 15
camaraderie is a jewel in the rough camaraderie is a jewel in the rough camaraderie is a jewel in the rough
Just would point out that if you need a phone for brief periods the 19.99 per month fee for unlimited use (when you can get it) is pretty damned attractive. Bahamas availability looks a BIT better than further south.
Compare this with $35/month access fee and AT LEAST $1.19 a minute with the TOTALLY reliable Iridium and the casual user may well be better off with a Globalstar.
Also...you can buy a Globalstar phone for $299 vs. $1200+ for an Iridium

Definitely NOT touting Globalstar here...just trying to lay out the options.
Of course with wifi and skype and cellular there are others as well.
Alan...LOL...didn't realize pocketmail was still going. We used it in 2000-1. I wrote and article for Bluewater Sailing on how to use one to get NAVTEX FORECASTS FROM NWS! So much has changed but ya still have to find a working Batelco phone!
__________________
No longer posting. Reach me by PM!
Reply With Quote Share with Facebook
  #10  
Old 01-08-2009
Junior Member
 
Join Date: Jun 2007
Posts: 26
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Leopold is on a distinguished road
You can ask VISTA to execute a program as if it was under XP.

Find the program file then right click with your mouse.

There is an option there that allow you to tell VISTA to simulate another operating system but do not expect miracles.

I do not remember how excatly it works but I did this for my brother who insisted to use EUDORA MAIL and I had to install the software while telling VISTA to simulate XP. Btw, you can always try to reinstall your software that way too

-Leopold
have fun
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Proper use of the Traveler PDixon Boat Review and Purchase Forum 34 04-23-2014 04:00 PM


All times are GMT -4. The time now is 01:27 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.