User's Manual

AIR GIGARAY 70 GHz Technical Specification
Proprietary & Confidential Maribor, 25 June, 2020 Page 7 of 32
2.1.3.2 General technical specification for base station
Transmitting section
 RF output frequency
70500-71000 MHz (500MHz band)
 Gain flatness
±2 dB (-30°C - +70°C)
 Max throughput (DOCSIS 3.1 )
Up to 3,5 Gbps
 Max output power
23 dBm/500MHz
 Antenna gain
19 dBi (75 degrees)
Receiving section
 RF input frequency
81005 - 80105 MHz (100MHz band)
 Gain flatness
±2 dB (-30°C - +70°C)
 Noise figure
4 dB typ.
 Max throughput (DOCSIS 3.1 )
Up to 2,4 Gbps
 Antenna gain
19 dBi (75 degrees)
General specifications
 Power supply
48 VDC
 Operating temperature
-30°C - +70°C
 Weatherproof housing
100% waterproof
Table 2: General specification
2.1.4. DOCSIS platform
Globtel Gigaray system in its core is a wireless bridge and can be seen as infrastructure
layer (physical layer) like cables in the wireline network. To be able to offer services
additional transmission technology must be used. Globtel Gigaray system supports Docsis
3.0 and Docsis 3.1 data transmission technology and DVBx for live TV.
These technologies are widely used in cable networks all over the world serving more than
142 million subscribers and representing 33,5% of all internet subscriptions in the world.
Both technologies Globtel Gigaray and DOCSIS are already being used in several countries
all over the world with frequency bandwidths of 200 MHz to 800 MHz.
Docsis platform can be used as a centralised CMTS solution with remote PHY at each base
station location or as a stand-alone solution with CMTS at each base station location.
DOCSIS 3.1 uses OFDM modulation on downstream and upstream. Downstream OFDM
carriers are from 24MHz to 192MHz wide. Upstream OFDMA carriers are from 12 to 96 MHz
wide. OFDM uses individual narrow sub-carriers. OFDM supports flexible modulation
schemes on both sides, downstream and upstream. Modulation schemes are based on cable
modem performance. Level of modulation is based on MER on cable modem.