History of Observing Log/B8D3signals_20160923 (No. 1)

• History
• View the source.
• Observing Log/B8D3signals_20160923 has been deleted.
  • 1 (2016-09-24 (Sat) 16:42:07)

Observing Log

Investigation of unstable signals in BAND8 (2016-09-23)†

• JST2016-09-23T20:30-22:30
• 参加者: 伊藤、藤井(三鷹)、木挽、藤本(ASTE)、鎌﨑(skype)
• &ref(): File not found: "ASTEB8キャビン内ケーブル揺動試験手順書20160916c-small.pdf" at page "Observing Log/B8D3signals_20160923";

BAND8チューニング後、アンテナEL=60で静止中、受信機キャビン内に人不在†

• UT12:02 EL=60度→90度への移動でレベル変化開始

  #ref(): File not found: "20160923-1202.png" at page "Observing Log/B8D3signals_20160923"

  #ref(): File not found: "20160923-1203.png" at page "Observing Log/B8D3signals_20160923"

• UT12:05 レベル変動が落ち着いた

  #ref(): File not found: "20160923-1205.png" at page "Observing Log/B8D3signals_20160923"

FANの影響確認†

• UT12:25 ファン駆動開始でレベル変動確認、ぎざぎざの状態に変化は見られない(?)

  #ref(): File not found: "20160923-1229.png" at page "Observing Log/B8D3signals_20160923"

• UT12:39 レベル変動のFFT用データの取得

  #ref(): File not found: "20160923-1239.png" at page "Observing Log/B8D3signals_20160923"

  #ref(): File not found: "20160923-1243.png" at page "Observing Log/B8D3signals_20160923"

GNDの強化†

• UT12:48 原因不明の突然の変化

  #ref(): File not found: "20160923-1248.png" at page "Observing Log/B8D3signals_20160923"

• UT12:56 GND接続 → ぎざぎざとレベル変動は顕在

  #ref(): File not found: "20160923-1259.png" at page "Observing Log/B8D3signals_20160923"

  #ref(): File not found: "20160923-1303.png" at page "Observing Log/B8D3signals_20160923"