Operating Temperatures; Air Interface Of The Samba Gsm/Gprs Part - FALCOM SAMBA 55 User Manual

SAMBA 55/56
CS-4:
Table 2:
Please note that the values listed above are the maximum ratings which, in
practice, are influenced by a great variety of factors, primarily, for example,
traffic variations and network coverage.

2.3 Operating temperatures

Parameter
Ambient temperature (according to GSM
11.10)
Restricted operation *)
Automatic shutdown: board temperature
*) SAMBA55/56 work, but deviations from the GSM specification may occur.

2.4 Air interface of the SAMBA GSM/GPRS part

Test conditions:
All measurements have been performed at T
The reference points used on SAMBA are internal contacts.
Parameter
Frequency range
Uplink (MS → BTS)
Frequency range
Downlink (BTS →
MS)
RF power @ ARP with
50 Ω load
Duplex spacing
Carrier spacing
Multiplex, Duplex
Time slots per TDMA frame
Frame duration
Time slot duration
Modulation
Receiver input
sensitivity @ ARP
BER Class II < 2.4 %
Table 3: Air Interface
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21.4 kbps
Coding schemes and maximum net data rates over air interface
E-GSM 900
GSM 900
GSM 1800
E-GSM 1900
GSM 1800
GSM 1900
E-GSM 900
GSM 1800
GSM 1900
E-GSM 900
GSM 1800
GSM 1900
E-GSM 900
GSM 1800
GSM 1900
E-GSM 900
GSM 1800
GSM 1900
42.8 kbps
Min Typ.
-20 25
-25 to -20
-29 °C
= 25 °C, V
amb
Min Typ
880
1710
1850
925
1805
1930
31 33
28 30
28 30
174
374
299
45
95
80
200
TDMA/FTDMA, FDD
8
4.615
577
GMSK
-102 -107
-102 -106
-102 -106
VERSION 1.07
85.6 kbps
Max Unit
50 °C
55 to 70 °C
>70 °C °C
= 5 V.
Input power
Max Unit
915 MHz
1785 MHz
1910 MHz
960 MHz
1880 MHz
1990 MHz
35 dBm
32 dBm
32 dBm
dBm
MHz
MHz
MHz
kHz
ms
µs
dBm
dBm
dBm
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