NOAAPort Satellite Change

 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 was notified by its current satellite vendor of their intention to realign the  NOAAPort/SBN/NWWS service from the Intelsat Galaxy 28 satellite to the Galaxy 31 satellite.

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.