Subject: Updated: Change to NOAAPort/Satellite Broadcast Network (SBN), Effective in Early 2023
Updated to include a change to the Receive Site Transition Window Start date and the RF Frequency.
The NWS has coordinated with its current satellite service vendors to mitigate impacts for all NOAAPort/SBN/NWWS customers. This includes activating a dedicated dual illumination period with the Galaxy 28 and the Galaxy 31 satellites to aid customers in transitioning to the newly designated NOAAPort/SBN satellite.
The NWS will continue to provide transition updates as additional information becomes available. The transition schedule follows below:
Transition Schedule
12 NOV 2022: G31 Launch Date
5 FEB 2023: Dual
Illumination Period
17 FEB 2023:
Receive Site Transition Window Start
31 MAR 2023:
Receive Site Transition Window Ends
3 APR 2023: AWIPS
Transition to G31 Complete
AWIPS C Band Service
-- Satellite: G-31
-- Orbital Location: 121B0 West
-- Transponder: CH16/CV16 36MHz C band
-- Uplink Polarization (from Holmdel teleport to G31):
Horizontal
-- Downlink Polarization (from G31 to remote AWIPS
receive only sites): Vertical
-- Transponder Uplink Center frequency: 6245MHz
-- Transponder Downlink Center Frequency: 4020MHz
Satellite (G31) specifications/AWIPS
-- Receiver: Novra S300N DVB-S2 Receiver
Configuration for DVB-S2 Full Transponder Operation
-- IP Address: User Defined
-- Subnet Mask: User Defined
-- Default Gateway: User Defined
-- Symbol Rate: 30 Msps
-- RF Frequency: 1130 MHz
-- LO Frequency: 0 MHz
-- PID(s): 101, 102, 103, 104, 105,106, 107,108, 150, 151
-- LNB Power: OFF
-- Polarity: Vertical/Right
-- Band: High
-- Enable IGMP Filtering: OFF
-- Unicast Status Packet: 255.255.255.255
-- Default password: User Defined
-- FEC Type: DVB-S2
-- Modulation/Coding: 16PSK 2/3
-- ISI: 18
Satellite (G31) specifications/NWWS
---(NWWS) Receiver: Novra S300N DVB-S2 Receiver
Configuration for DVB-S2 Full Transponder Operation
-- IP Address: User Defined
-- Subnet Mask: User Defined
-- Default Gateway: User Defined
-- Symbol Rate: 30 Msps
-- RF Frequency: 990 MHz
-- LO Frequency: 0 MHz
-- PID(s): 201
-- LNB Power: OFF
-- Polarity: Vertical/Right
-- Band: High
-- Enable IGMP Filtering: OFF
-- Unicast Status Packet: 255.255.255.255
-- Default password: User Defined
-- FEC Type: DVB-S2
-- Modulation/Coding: QPSK 1/3
-- ISI: 2
We would encourage all NOAAPort/SBN/NWWS users to closely
monitor this SCN during the transition period for updated information.
