NOAA Office of Satellite and Product Operations

NOAA 19 COMM Subsystem Summary

Component Description Status
BTX 1Beacon Transmitter #1 (137.35MHz)Green
BTX 2Beacon Transmitter #2 (137.77MHz)Green
STX1S-Band Transmitter #1 (1698MHz)Green
STX2S-Band Transmitter #2 (1702.5MHz)Green
STX3S-Band Transmitter #3 (1707MHz)Orange
STX4S-Band Transmitter #4 (2247.5MHz)Green
VTX1VHF Transmitter #1 (137.10MHz)Green
VTX2VHF Transmitter #2 (137.9125MHz)Green

Subsystem History:

Date Time Component Description
07/22/201517:49:40 Implement 5 minute delay between STX off commands via SCT
02/05/201419:00:53STX3Turn STX3 off
02/05/201419:00:13STX3Deconfigure STX3 input path
02/05/201415:48:49STX3Configure HRPT on STX3
02/04/201417:28:36STX3Turn STX3 on (carrier only)
02/04/201417:27:35STX3Deconfig STX3 for source (carrier only)
11/27/201220:17:00STX3Clear for STX3
11/27/201220:16:39STX3Turn off STX3
11/27/201218:33:46STX3Power cycle STX3 turn on
11/27/201218:33:33STX3Power cycle STX3 turn off
11/27/201217:01:37STX3Turn on STX3
11/27/201217:01:37STX3Configure for HRPT on STX3
10/29/201210:08:20STX3STX3's Output Power exhibited erratic behavior during Revs 19192 and19194. During Rev 19192, the STX Output Power dropped from 7.73 W to 0 W for a period of 8 seconds before rebounding to a value of 7.569 W (no temperature fluctuation was observed). During Rev 19194, the Output Power dropped from 7.73 W to 0 W with an accompanying temperatuere spike from 24 to 26 deg C. Throughout the rest of the pass for Rev 19194, the Output Power remained 0 W with the temperature reading ~25 deg C, nominal for an on" state
04/20/201114:41:00STX2NOAA-19's STX2 was activated to test FCDAS ability to receive real-time AIP data.
11/04/201005:22:30STX1NOAA-19's STX1 (HRPT TX) experienced an abrupt decrease in output power. The output power dropped 1.60 W (from 8.51 W to 6.91 W) and the orbital maximum temperature increased 3 deg. C (from ~28 deg. C to ~31 deg. C).
06/23/200918:31:15VTX1Turns on VTX1
06/23/200918:31:00VTX2Turns off VTX2
02/06/200911:49:20BTX 1COMM Subsystem Nominal
02/06/200911:49:20BTX 2COMM Subsystem Nominal
02/06/200911:49:20STX1COMM Subsystem Nominal
02/06/200911:49:20STX2COMM Subsystem Nominal
02/06/200911:49:20STX3COMM Subsystem Nominal
02/06/200911:49:20STX4COMM Subsystem Nominal
02/06/200911:49:20VTX1COMM Subsystem Nominal
02/06/200911:49:20VTX2COMM Subsystem Nominal
02/06/200911:43:20 VRA (VHF Real-time Antenna) Deployment