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Customers Only
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Comparing Portable Satellite Telephone Units - May 2002
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Globalstar |
Iridium |
INMARSAT |
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Size |
Hand-held |
Hand-held |
Laptop |
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Weight—phone only |
GSP1600 = 370g |
9500 = 1 lb, 454g
9505 = 375 g |
Mini-M =5 lb, 2400 g
M4 = 9 lb, 4000g |
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Antenna |
Omni-directional |
Omni-directional |
Directional - must point at the satellite |
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Data rates |
9600 bps |
Direct Dial - 2400 bps
Iridium Direct - 3-10kbps |
Mini-m = 2400 bps
M4 = 64kbps |
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Coverage |
Check Map |
Worldwide |
+/- 70 deg Latitude |
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Who pays?* |
Mobile pays all calls |
Caller pays |
Caller pays |
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Unit Cost |
GSP1600 Used - $395
GSP1600 New - $495 |
9500 refub - $495
9500 new - $895
9505 new - $1295 |
Mini-m land = $2499
Mini-m marine = $5500
M4 land = $10,000 |
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Voice Quality |
Best |
Good |
Better |
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Voice Call cost |
Domestic = $0.89-$1.69
Roaming = $2-$3.75 |
Mobile to Fixed= $1.50
Mobile to Mobile= $0.99 |
Mobile to Fixed= $2.50 - $3
M4 = $2.75 voice, low rate |
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Data Call Cost |
Same as voice-Iridium
$0.99 from PSN |
Same as voice |
Mini-m = same as voice
M4 (64kbs) = $7.50/min |
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2-wire interface |
Special fixed unit $2500 |
Fixed Unit $2600 |
Yes, RJ-1 connector on unit |
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Short Msg Service (SMS) |
19 char/msg
Free service |
Yes - 120 chars w/email
Free service |
No |
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Battery life |
9 hr standby, 3.5 hr talk |
9500 std btry 1200 mah
2 hr talk,16 hr standby
9500 hi-cap 1900 mah
3.2 hrs talk, 24 hr standby
9500 Ultra 2500 mah
5.5h talk, 48h Standby
9505 std btry 1200mah
2.4 hr talk, 24 hr standby
9505 hi-cap 1900mah
3.6 hr talk, 38 hr standby |
50 hr standby, 2 hr talk |
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Cellular access |
Yes |
No* |
No |
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External Antenna |
Yes w/ $795 car kit |
Yes |
Yes |
Notes:
-Iridium and INMARSAT have their own country codes and are an international
call, mobile-to-fixed is at the rates shown, caller pays for fixed-to-mobile but
is at a high rate based on your log-haul telephone company (typically
$5-$10/min). Globalstar appears as a domestic US number, unit owner pays for all
air time.
-Globalstar has two call rates, one for domestic calls and a hefty surcharge
for roaming outside of the domestic area. Canada, US and the Caribbean are one
domestic area. The roaming rates vary depending on country. Latest low rates are
$0.99/min domestic, $1.49 international call from domestic area, and $1.99 for
roaming outside the domestic area
-Globalstar data is only available in the US, Canada and Caribbean
-Iridium cellular cassettes are not part of the new offering
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