NextNav LLC 100-0013-01 Manual Do Utilizador
Document Name: MBS Leopard Transmitter Usert NOC Operating Manual Version No: 1.4
Company Name: NextNav, LLC.
Confidential
Page 13
3/10/2014
Page 13 of 13
levels between 2 MHz and IDB mode is compensated using internal RF attenuation that
can be set remotely by NOSS engineers to ensure that 30 Watts ERP is met in both
cases.
can be set remotely by NOSS engineers to ensure that 30 Watts ERP is met in both
cases.
3 Technical Specifications
Parameter
Value/Description
Modulation
BPSK modulation with CDMA spreading
Maximum ON time
200ms/1second
Duration of a single burst
100ms
Center Frequencies
926.227MHz for single 2 MHz band and in IDB
band Type B
920.773 MHz for 2 MHz IDB band Type A
924.692 MHz for 5MHz in IDB band Type A
and B
band Type B
920.773 MHz for 2 MHz IDB band Type A
924.692 MHz for 5MHz in IDB band Type A
and B
Necessary Signal Bandwidth
2.046MHz for single band,
5.115MHz for IDB band Type A & B
5.115MHz for IDB band Type A & B
Frequency Stability
<10ppb
EIRP
30W ERP `
Data Rate
99 bits in a 100ms slot
Power Supply
Nominal: 110 VAC (primary means)
48 VDC (secondary means – battery backup)
48 VDC (secondary means – battery backup)
Power Consumption
330 W max, 140 W average, 7.5A
Operating Conditions
-40°C to +50°C, plus solar radiation
0 to 95% humidity, non-condensing
0 to 95% humidity, non-condensing
Remote Monitoring
Via SNMP protocol
Environmental Standard
IP66