Sat phones

They aren't... $1 a minute or thereabouts. When you think what the mobile phone crooks used to charge before they were forced to lower prices in the EU then being able to use Iridium anywhere in the world for $1 a minute is a bit of a bargain. Texts from Iridium are FREE!
 
They aren't... $1 a minute or thereabouts. When you think what the mobile phone crooks used to charge before they were forced to lower prices in the EU then being able to use Iridium anywhere in the world for $1 a minute is a bit of a bargain. Texts from Iridium are FREE!

And the phone costs how much?
 
Why are they so expensive to run? or are we just lucky we don't have to pay for gps nav kit.

The comparison with GPS is rather valid for the cost of putting up satellites and maintaining them. I don't suppose Iridium satellites need atomic clocks like GPS ones, but keeping all those two-way channels going at the same time must be quite a technical challenge. (Wikipedia: Iridium_satellite_constellation) Like a cellular network with the cells moving faster than the clients! Or an Ethernet with a ridiculously long cable...

And unlike a GPSr the client devices have to be able to chat back to the satellite; don't all talk at once, down there!

Mike.
 
They aren't... $1 a minute or thereabouts. When you think what the mobile phone crooks used to charge before they were forced to lower prices in the EU then being able to use Iridium anywhere in the world for $1 a minute is a bit of a bargain. Texts from Iridium are FREE!

Texts "to" iridium are free. Which is still very useful. I found the line rental was the killer. At the time it came out to nearly 400 quid a year.
 
Texts "to" iridium are free. Which is still very useful. I found the line rental was the killer. At the time it came out to nearly 400 quid a year.
Sorry.... To is correct.

I don't pay any line rental, I just buy pay as you go top-ups in 500 minute units usually for around $550 from U.S. companies on ebay.
 
Sorry.... To is correct.

I don't pay any line rental, I just buy pay as you go top-ups in 500 minute units usually for around $550 from U.S. companies on ebay.

Good price, lots less than I was paying. The line rental was hidden in the call costs on the sim card i had, if you had, say 500 mins for 3 months then to keep the credit for longer it was something like £35 a month to keep the sim card live without buying more time/minutes. Didn't make any sense when the phone only got used on offshore legs.
 
Ouch! I think the 500 mins are valid for 12 months but if you top-up again within that 12 months, any remaining minutes on the first card get extended by a further 12 months. I've got a couple of hundred minutes on mine that don't expire until 2013!
 
Why are they so expensive to run? or are we just lucky we don't have to pay for gps nav kit.

Because we live in a commercial world. Simples.

Actually the cost that you pay for your sat phone is representative of the cost of these satellites. The only reason that we even have access to GPS satellites is thanks to the world of aviation. Many moons ago an Airliner was shot down because it was in the wrong place at the wrong time. This is before GPS was public. The US Government at the time were made aware that their GPS technology could have prevented this, and the loss of all those lives. The decided at that point to allow the public to access the satellites for position fixing to prevent this ever happening again. They were also super nice and set it up such a way that you don't pay for the data. Although it (the signal) is transmitted all the time so the "cost" is built in to the receiver that you buy off the shelf.

History lesson over! :D
 
Sat Phones

I have a thuraya sat phone it cost about £400 five years ago. It is pay as you go and you have to pay 39 dollars per year to keep it going. It works through western europe and out to the Azores. Text messages are about 30 cents voice calls about 1 dollar / minute. The coverage is shown on a map on their website. I have found it very useful.
 
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