| |
Wireless
|
|
Analog Cellular
Telephones
|
|
Standard
|
AMPS
|
NAMPS
|
ETACS
|
NTACS
|
NMT-450
|
NMT-900
|
|
Mobile Frequency Range
(mHz): Rx
|
869 - 894
|
869 - 894
|
916-949
|
860-870
|
463 - 468
|
935-960
|
|
Mobile Frequency Range
(mHz): Tx
|
824-849
|
824-849
|
871-904
|
915-925
|
453-458
|
890-915
|
|
Multiple Access Method
|
FDMA
|
FDMA
|
FDMA
|
FDMA
|
FDMA
|
FDMA
|
|
Duplex Method
|
FDD
|
FDD
|
FDD
|
FDD
|
FDD
|
FDD
|
|
Number of Channels
|
832
|
2496
|
1240
|
400
|
200
|
1999
|
|
Channel Spacing (kHz)
|
30
|
10
|
25
|
12.5
|
25
|
12.5
|
|
Modulation
|
FM
|
FM
|
FM
|
FM
|
FM
|
FM
|
|
|
Digital Cellular
Telephones
|
|
Standard
|
TDMA
|
CDMA
|
GSM
|
DCS 1800/1900
|
PDC
|
|
Mobile Frequency Range
(mHz): Rx
|
869-894
|
869 - 894
|
925-960
|
1805-1800
|
810-826
1429-1453
|
|
Mobile Frequency Range
(mHz): Tx
|
824-849
|
824-849
|
880-915
|
1710-1785
|
940-956
1477-1501
|
|
Multiple Access Method
|
TDMA/FDM
|
CDMA/FDM
|
TDMA/FDM
|
TDMA/FDM
|
TDMA/FDM
|
|
Duplex Method
|
FDD
|
FDD
|
FDD
|
FDD
|
FDD
|
|
Number of Channels
|
832
|
20
|
124
|
374
|
1600
|
|
Channel Spacing (kHz)
|
30
|
1250
|
200
|
200
|
25
|
|
Modulation
|
π/4 DQPSK
|
QPSK/OQPSK
|
GMSK
|
GMSK
|
π/4 DQPSK
|
|
Channel Bit Rate
|
48.6 kb/s
|
1.2288 Mb/s
|
270.833 kb/s
|
270.833 kb/s
|
42 kb/s
|
|
|
Cordless Telephones
|
|
Standard
|
CT0
|
CT1
|
CT1+
|
CT2
|
CT2+
|
DECT
|
PHS
|
|
Mobile Frequency Range
(mHz)
|
46/49
|
914/960
|
885/932
|
864/868
|
944/948
|
1800-1900
|
1900-1918
|
|
Multiple Access Method
|
FDMA
|
FDMA
|
TDMA/FDM
|
TDMA/FDM
|
TDMA/FDM
|
TDMA/FDM
|
TDMA/FDM
|
|
Duplex Method
|
FDD
|
FDD
|
TDD
|
TDD
|
TDD
|
TDD
|
TDD
|
|
Number of Channels
|
10, 12, 15, 20, or
25
|
40
|
80
|
40
|
40
|
10
|
300
|
|
Channel Spacing (kHz)
|
1.7, 20, 25, or 40
|
25
|
25
|
100
|
100
|
17.28
|
300
|
|
Modulation
|
FM
|
FM
|
FM
|
GFSK
|
GFSK
|
GFSK
|
π/4 DQPSK
|
|
Channel Bit Rate
|
n/a
|
n/a
|
n/a
|
72 kb/s
|
72 kb/s
|
1.152 Mb/s
|
384 kb/s
|
|
|
Wireless Data
|
|
Standard
|
CDPD
|
Bluetooth
|
IEEE 802.11 FHSS
|
IEEE 802.11 DSSS
|
|
Mobile Frequency Range
(mHz): Rx
|
869-894
|
2400-2497
|
2400-2483 (N. America
/Europe)
2470-2499 (Japan)
|
2400-2483 (N. America
and Europe)
2470-2499 (Japan)
|
|
Mobile Frequency Range
(mHz): Tx
|
824-849
|
2400-2497
|
2400-2483 (N. America/Europe)
2470-2499 (Japan)
|
2400-2483 (N. America
and Europe)
2470-2499 (Japan)
|
|
Multiple Access Method
|
FDMA
|
Frequency hopping
|
CSMA
|
CSMA
|
|
Duplex Method
|
FDD
|
TDD
|
TDD
|
TDD
|
|
Number of Channels
|
832
|
79
23 (Japan, Spain, France)
|
79
|
11
|
|
Channel Spacing
|
30 kHz
|
1 MHz
|
1 MHz
|
11 MHz
|
|
Modulation
|
GMSK
|
GFSK
|
GFSK
|
DBPSK (1 MB/s)
DQPSK (2 MB/s
|
|
Channel Bit Rate
|
19.2 kb/s
|
1 Mb/s symbol rate
|
1 or 2 MB/s
|
1 or 2 MB/s
|
Vendors
Philips
replacetopic |
|
|
