Hong Kong Hiking Web:
民間搜索隊 CountrySide Volunteer Search Team:
| By Jackwabbit (Jackwabbit) on Thursday, May 05, 2011 - 9:52 am: Edit
Posted From: 18.104.22.168|
Our thanks to AC and TY who helped out our search on Wed..
| By Jackwabbit (Jackwabbit) on Wednesday, May 04, 2011 - 6:28 am: Edit
Posted From: 22.214.171.124|
1. I agree with your sound analysis. We'll follow-up on this point.
2. You're also correct with the building height.
The actual building is may be twice as tall as 150m. We need to post another photo of "signal coverage" after we have time to do another analysis.
Thanks for the observation.
| By MKSJ on Tuesday, May 03, 2011 - 11:44 pm: Edit
Posted From: 126.96.36.199|
When the Tuen Mun Highway passes thru the Sham Tseng area, it is on a fly-over type bridge way above the village. And the village is below on Castle Peak Road, roughly at sea level.
The thinking here is that :
a) If your position is above the height of the Highway, you would probably hear quite a bit of traffic noise .
b) If your position is at the Sham Tseng Village below the bridge, you probably would hear less traffic noise .
Questions to ponder :
a) When the family member got thru to the MP’s mobile phone on 2011-5-01 around 8:00 p.m. , were there any traffic noise in the background.
b) When the family member got thru to the MP’s mobile phone on 2011-5-02 around 0:30 a.m. or thereabouts, were there any traffic noise in the background.
The Antenna is assumed at 150 meters above sea level.
If the Antenna is at the top of a building, the building itself is roughly 450 feet high / 45 storeys.
My faint recollection here is that the buildings in Sham Tseng are only 30+ storey. But I may be wrong, or may be the Antenna is elsewhere.
| By 路人 on Tuesday, May 03, 2011 - 10:14 pm: Edit
Posted From: 188.8.131.52|
| By Jackwabbit (Jackwabbit) on Tuesday, May 03, 2011 - 11:19 am: Edit
Posted From: 184.108.40.206|
假設在深井電訊站的高度是 150 公尺﹐及因為手機和電訊站信號是可以以視覺直線（line of sight signal )去畫出一個收發範圍﹐我們利用 "radio mobile" 軟件去畫出失蹤者可能在的位置︰
| By Jackwabbit (Jackwabbit) on Monday, May 02, 2011 - 4:19 pm: Edit
Posted From: 220.127.116.11|
| By Jackwabbit (Jackwabbit) on Sunday, May 01, 2011 - 9:39 pm: Edit
Posted From: 18.104.22.168|
失蹤者是一位７１歲男士，高等瘦削身材，5尺10寸。於本年4月30日上午10時左右離家後，還未回家。當日他身穿白色Polo T-Shirt，魚網背心，藍色牛仔褲， 黑色波鞋，有帶眼鏡。暫時懷疑在城門水塘至金山郊野公園一帶失蹤。請大家留意電郵或通告。