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Anonymous, 02/19/2016 10:50 PM
1 | 2 | laforge | = GEO Mobile Radio = |
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3 | 2 | laforge | This is the homepage of the Osmocom sub-project ''GEO Mobile Radio''. |
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5 | 2 | laforge | It is collecting information and software related to the ETSI GEO Mobile Radio specification and its practical implementations like the [wiki:Thuraya] satellite phone network |
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7 | 2 | laforge | GEO Mobile Radio is a set of specifications describing a satellite based mobile phone network. |
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9 | 3 | laforge | == Radio aspects == |
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11 | It uses the L-band frequencies 1634 to 1656 MHz (earth to space) and 1532.5 to 1554.5 MHz (space to earth) for communication |
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12 | between mobile phones and the respective satellites. The polarization is circular (left) and the modulation is pi/4 QPSK, using |
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13 | a channel spacing of 31.25 kHz |
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15 | == Index == |
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16 | 2 | laforge | * [wiki:GMR_Specifications] -- An Introduction and Overview into the GMR specifications |
17 | * [wiki:Thuraya_SO2510] -- A popular handset for use in the [wiki:Thuraya] system. |
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18 | 4 | * [wiki:Thuraya_SG2520] -- A dual-mode GSM/ [wiki:Thuraya] handset running WindowsCE. |