Paradise Datacom Quantum, Инструкция по установке и эксплуатации

Страница: 127 / 354

Quantum and Evolution Series Installation and Operating Handbook
7-98
C 3.635 – 4.200 GHz
LO Frequency: 5150MHz
Ku 10.95 – 11.45 GHz
. LO Frequency: 10000MHz
Ku 11.2 – 11.7 GHz
LO Frequency: 10250MHz
Ku 11.7 – 12.2 GHz
LO Frequency: 10750MHz
Ku 12.25 – 12.75 GHz
LO Frequency: 11300MHz
Factory
default: None
Description
Allows the user to select a number of Paradise LNBs or
Other
if another
manufacturer’s LNB is being used. If
Other
is selected then the following
LNB frequency offset screen is displayed.
Note the `Std C` LNB uses a high side Local Oscillator (LO) and the received SHF
frequency is LO - IF frequency (not LO + IF as with most other bands). This is academic
as it is handled automatically by the modem, which displays the correct SHF frequency.
Edit-Rx-Carrier-Advanced-LNB Frequency Offset Screen
Units:
MHz
Minimum value:
0
Maximum value:
65535
Step size:
1
Factory default:
0
Description:
Once set, all Rx IF frequencies displayed or edited include the frequency
shift of the LNB or downconverter chain.
Note that the entry of the SHF frequency shift expects a high side Local
Oscillator (LO) and therefore displays the SHF frequency = LO - IF.
Changing the sign allows the modem to display a low side LO. (High
side LO is – and Low side LO is +.) Move the cursor over the sign and
use the up/down arrows to change.
SHF freq offset: -99.999 to 99.999GHz
[-05.15000000] Step 100Hz
New: -05.15000000