Pre-Installation Requirements Verify Tx/Rx Path Gain Budgets
OceanTRx
TM
4-500 Installation and Operations Manual 3-17
3.7.1.2 Single System L-Band Rx Levels
The calculation of the Rx L-Band path takes into consideration all Losses & Gains of the
OceanTRx4-500™ system: CCU losses, Attenuation Set-Up in the CCU, LMR Cable loss
(according to the length and type), Cables / RJ losses / Splitter in the pedestal, LNB Gain,
ADMx / BDMx Rx Path Total Gain.
The LNB output level as calculated separately according to the satellite EIRP, Transponder
Bandwidth, Used Bandwidth, OceanTRx4-500™ Antenna Gain, down link frequency.
Rx Modem
LMR
RJ ADMx
L Band
L Band
A
B C
D
E
Gain
RF
Band
F
CCU1U
LNB
BDMx
L Band
L Band
L Band L Band
Splitter
G
L Band
Figure 3-15: Single OceanTRx4-500 L-Band Rx Path
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