龍潭bm2eqb觀測站實驗接收報告 No:02

時間:1999/6/2

觀測者:曹永杰

觀測站:桃園縣龍潭 bm2eqb觀測站(121度14分37秒 東經/24度52分54秒 北緯).GPS測定

觀測頻率:50.0169MHz USB mode beacon 3kHz頻寬(50.0175MHz 為CW mode)

接收天線:多頻偶極1/2波長天線 HF/50MHz頻帶.

發射地點:日本九州 宮崎縣立大學 (距離龍潭觀測站 約1,125公里).

接收機:Icon PCR-1000型全頻電腦控制接收機

感度:0.25 uV/10db S/N比.USB mode

觀測方式:利用接收機 信號強度作信號輸出,經自製的8 bit數位/ 類比轉換介面為數位

輸出(0-255範圍).利用RS-2132C經第二部電腦和軟體連接,將信號檢測,顯示及儲存.

*本記錄使用"FFTDSP"傅立葉快速轉換音頻譜作流星Echo 頻譜,分析雜波及非echo信號.

Observer:  Garfield TSAO  (BM2EQB)

Location: LonTan Observatory
                LonTan .TauYan .Taiwan  (121.14.37E, 24.52.54 N by GPS)

Frequency: 50.0169 MHz USB mode 3kHz Width.

Antenna :Multi band Dipole antenna for HF and 50MHz.(Installed  to confront
               North and South direction).

Transmitter Location: MIYAZAKI University Japan .Distance: About 1,125km
                                  from Lon Tan.

Receiver:Icon PCR-1000 all band receiver by computer controlled

Sensitivity: 0.25 uV for 10 dB S/N  for USB mode

Observing method: the "S" signal  is received using  a band pass filter
                               (50MHz) and fed in to the D/A converter and computer  in real time.

Data sampling system: using a  8 bits A/D card to PC/AT and "Data Capture" software with 1 second/8 ampling interval to store all the > 0 s reflections.

observed time:July 13th 0h am- July 20th 9h am.

*.no "*"mark of area is meaning E layer propagation and E sporadic of reflection.

*1.無"*"記錄為E/Es層活動期.無法記錄數據.

*2. 6月15,16日龍潭地區性停電,電腦無法運轉工作.

*.6月19,20日有雷電引起高脈衝數據,不予記錄!