> 5.8 | Air Interface

> Test conditions: All measurements have been performed at Tamb= 25×C, VBATT+ nom = 4.0V. The reference points used on TC65 are the BATT+ and GND contacts (test points are shown in Figure 4).

> Table 38: | Air interface

> Parameter | Min | Typ | Max | Unit
> Frequency range Uplink (MS → BTS) | GSM 850 | 824 |  | 849 | MHz
> E-GSM 900 | 880 |  | 915 | MHz
> GSM 1800 | 1710 |  | 1785 | MHz
> GSM 1900 | 1850 |  | 1910 | MHz
> Frequency range Downlink (BTS → MS) | GSM 850 | 869 |  | 894 | MHz
> E-GSM 900 | 925 |  | 960 | MHz
> GSM 1800 | 1805 |  | 1880 | MHz
> GSM 1900 | 1930 |  | 1990 | MHz
> RF power @ ARP with 50Ω load | GSM 850 | 31 | 33 | 35 | dBm
> E-GSM 9001 | 31 | 33 | 35 | dBm
> GSM 18002 | 28 | 30 | 32 | dBm
> GSM 1900 | 28 | 30 | 32 | dBm
> Number of carriers | GSM 850 |  | 124 |  |
> E-GSM 900 |  | 174 |  |
> GSM 1800 |  | 374 |  |
> GSM 1900 |  | 299 |  |
> Duplex spacing | GSM 850 |  | 45 |  | MHz
> E-GSM 900 |  | 45 |  | MHz
> GSM 1800 |  | 95 |  | MHz
> GSM 1900 |  | 80 |  | MHz
> Carrier spacing |  | 200 |  | kHz
> Multiplex, Duplex | TDMA / FDMA, FDD
> Time slots per TDMA frame |  | 8 |  |
> Frame duration |  | 4.615 |  | ms
> Time slot duration |  | 577 |  | µs
> Modulation | GMSK
> Receiver input sensitivity @ ARP BER Class II < 2.4% (static input level) | GSM 850 | -102 | -108 |  | dBm
> E-GSM 900 | -102 | -108 |  | dBm
> GSM 1800 | -102 | -107 |  | dBm
> GSM 1900 | -102 | -107 |  | dBm

> 1
> Power control level PCL 5
> 2
> Power control level PCL 0