User’s Manual
10
ANNEX A
HELLAS SAT NETWORK OPERATIONS CONTROL
Satellite Access Procedures
Purpose :
This document defines the procedures all Earth Stations must follow in order to access Hellas
Sat 2 Space Segment.
Customer Access :
In order to transmit to Hellas Sat 2 satellite, an authorization procedure should firstly take
place. Customers should originally contact Hellas Sat planning department (planning@hellas-
sat.net). After getting authorized, the Network Operations Control can be reached by contacting
the Shift Engineer (+302106116090).
Line-Up Procedure :
There is a 10 minute Line-Up time that precedes the start of the booked time. During the
access procedure the customer must be ready to go behind specific steps. Particularly, the
Shift Engineer will require the following step-by-step sequence to be precisely tagged along:
A)
CHECK-IN :
1) Check the antenna registration.
2) Check the carrier ID.
3) Confirm the uplink frequency.
4) Confirm the uplink polarization.
5) Confirm the start and finish transmission time (in case of permanent carriers this is not
required).
B)
C/W CARRIER TRANSMISSION :
6) Check that a clean and power reduced carrier is transmitted.
7) Check the correct downlink frequency.
8) Confirm good cross-polarization isolation.
C)
MODULATED CARRIER TRANSMISSION :
9) Check that a modulated carrier has been rapidly transmitted.
10) Adjust and confirm the level (C/N, EIRP) of the modulated carrier.
D) CHECK-OUT:
11) Request customer’s engineer mobile number.
12) Ask for a “good night” call that indicates the end of the transmission.
