NOAA Office of Satellite and Product Operations


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NOAA 16 COMM Subsystem Summary

Component Status:

BTX 1Beacon Transmitter #1 (137.35MHz)Green
BTX 2Beacon Transmitter #2 (137.77MHz)Green
STX1S-Band Transmitter #1 (1698MHz)Yellow
STX2S-Band Transmitter #2 (1702.5MHz)Green
STX3S-Band Transmitter #3 (1707MHz)Orange
STX4S-Band Transmitter #4 (2247.5MHz)Yellow
VTX1VHF Transmitter #1 (137.50MHz)Red
VTX2VHF Transmitter #2 (137.62MHz)Red

Subsystem History:

Date Time Component Description
03/31/201314:31:31STX1NOAA-16's output power dropped from 9.623W to 2.196W.
10/11/201116:27:11STX4STX4 activated for GAC playback testing prior to the transmitter being re-inserted back into stored command schedule.
11/09/201000:03:00STX2Turn off STX2.
11/09/201000:03:00STX1Turn STX1 on.
03/11/200902:10:00STX2On JDay 070, STX2 experienced an initial decrease in power of ~ 59% (from 8.852 to 5.156 watts), The power eventually stabilized at ~5.9 W and is operating nominally as the spacecraft's HRPT transmitter.
10/12/200715:48:00STX4Successful STX-4 testing of the TIP, AIP, GAC, HRPT data types
10/09/200716:31:00STX4STX-4 is operational after XSU switch to side 2 (from 1). Tetsing will continue.
10/02/200700:00:00STX3NOAA-16 STX-3 is usable for low rate data
09/14/200700:00:00STX3STX3 HRPT transmission testing.
09/11/200700:00:00STX3Testing involved configuring STX3 for GAC Pbk at both 1.33 Mbps and 2.66 Mbps, then deconfiguring the transmitter and turning it off.
08/30/200720:38:00STX4Test CP turns on STX4, then configures it for HRPT, then AIP, and then finally deconfigures STX4 and turns it off.
08/11/200700:00:00STX3NOAA-16 STX-3 is unusable-low output power
08/10/200708:01:00STX4STX-4 was observed to have an RF carrier with no modulation.
08/30/200507:29:00STX2STX-2 selected as HRPT transmitter.
08/30/200507:28:30BTX 2BTX-2 turned on as Beacon transmitter
08/30/200507:28:00STX1STX-1 removed as HRPT transmitter, to be used for playbacks.
08/30/200507:28:00BTX 1BTX-1 turned off.
08/30/200500:31:30BTX 2Turn on BTX2, new Beacon transmitter.
08/30/200500:31:20BTX 1Turn off BTX1
08/30/200500:30:20STX2Config STX2 to HRPT
08/30/200500:30:10STX2Turn on STX2
08/30/200500:30:05STX1Clear STX1 Config
08/30/200500:30:00STX1Turn off STX1, use for playbacks only.
07/08/200515:11:00BTX 1Turn on BTX1 after SOMS software inadvertantly turned it off because of problems with its RF priority algorythm.
05/30/200500:01:00BTX 1BTX unexpectedly turned off by stored commands. Suspect RF priority problem with SOMS software.
01/20/200319:30:00STX1STX-1 (HRPT data) turned back on
01/20/200317:50:00STX1STX-1 (HRPT data) inadvertently turned off
11/15/200200:00:00STX3STX-3 testing
09/10/200200:01:00BTX 1BTX1 switched on via Stored Command
09/10/200200:01:00BTX 2BTX2 switched off via Stored Command
12/13/200100:00:00STX3STX-3 testing
11/06/200121:10:00STX3STX-3 turned off
10/09/200100:35:00STX4Begin using STX-4 as needed for playbacks
10/09/200100:35:00STX3HRPT switched from STX-3 to STX-1
10/09/200100:35:00STX1HRPT switched to STX-1 from STX-3
09/28/200100:00:00STX3STX-3 Power degradation from 9 to 1 Watts.
09/21/200100:00:00VTX2Investigation determined RF Hybrid failure caused VTX anomaly
09/21/200100:00:00VTX1Investigation determined RF Hybrid failure caused VTX anomaly
01/25/200115:40:00VTX1VTX turned off
01/19/200119:45:00VTX1VTX turned on for testing - APT data quality poor
01/19/200118:11:00VTX2VTX turned off
01/17/200118:00:00VTX2VTX turned on for testing - APT data quality poor
11/15/200017:25:00VTX1APT data quality poor following turn on
11/15/200000:00:00VTX1VTX turned off
11/14/200000:00:00VTX2VTX turned off
11/09/200000:00:00VTX2Poor ATP data qaulity
10/19/200000:00:00VTX2VTX turned off due to VHF conflict with NOAA-14
09/21/200010:56:00STX1On Orbit
09/21/200010:56:00VTX2On Orbit
09/21/200010:56:00VTX1On Orbit
09/21/200010:56:00BTX 2On Orbit
09/21/200010:56:00BTX 1On Orbit
09/21/200010:56:00STX4On Orbit
09/21/200010:56:00STX3On Orbit
09/21/200010:56:00STX2On Orbit