Radio Specifications |
|
uplink (handset transmit): |
890-915 MHz |
downlink (handset receive): |
935-960 MHz |
multiple access scheme: |
FDTDMA/FDMA |
|
(time division access on multiple frequency bands) |
|
duplexing scheme: |
FDD |
TX/RX spacing: |
45 MHz |
channel spacing: |
200 kHz |
total number of radio channels: |
124 |
channel bit rate: |
270.833 kb/sec |
full rate channels per carrier: |
8 |
modulation: |
GMSK with BT=0.3 |
filter: |
0.3 Gaussian |
|
|
transmit power (mobile unit): |
3.7 mW to 20 W |
volume is in the Class IV [2W] handsets |
lowest power handset is 0.8 W |
max transmit power (base): |
55 dBm (320 Watts) |
|
|
full speech coder bit rate: |
13 kbit/sec |
equalization for multipath delay: |
16 microseconds |
full rate transmission delay due to interleaving: |
65 milliseconds |
optional frequency hopping: |
217 hops/sec (slow hopping) |
Half rate channels for data and speech |
Discontinuous transmission |