Newtec MDM6000 - Page 142

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General Device Settings and Actions MDM6000 Satellite Modem
Configure the antenna pointing configuration parameters.
Contact your satellite operator to fill out the following configuration parameters.
Parameter Description
Satellite
Longitude
Longitude in degrees of the satellite position.
Satellite
Latitude
Variance
This parameter indicates how much the satellite can drift from its default
position.
Satellite Polarity
Skew
The satellite polarity skew is the angle that the antenna of the satellite is
pointed towards the earth surface.
During pointing it is very important to calculate this value in order to get the
optimum pointing of your antenna.
Rx Polarization Receive polarization:
• Left Handed, this points out that the antenna receives left handed circular
polarization.
• Right Handed: this points out that the antenna receives right handed
circular polarization.
• Vertical polarization, this points out that the antenna receives vertical
polarized frequencies.
• Horizontal polarization, the receiver only listens to horizontal polarized
Short Axis Max
Skew
The short axis maximum skew becomes relevant in case of a non circular
polarization setup.
If the antenna has a beam shape that Is radially symmetric about the bore
sight, this parameter may be ignored. Otherwise, the antenna must use the
current skew as a factor in computing the "Transmission off" or "Transmission
on" status.
When all other parameters permit transmission and this maximum skew is
reached, these parameters are overruled and the transmission is switched off.
When going back below the maximum skew value, the transmission is
switched on again. (note if all other parameters permit transmission.)
Rx LO
Conversion
Frequency
Check the LNB specifications to insert the correct conversion frequency.
TX Polarization Receive polarization:
• Left Handed, this points out that the antenna transmits left handed circular
polarization.
• Right Handed: this points out that the antenna transmits right handed
circular polarization.