Pls forgive me in typing english her as my Chinese typing is super slow.... X>
Other than selling the speedboat, I am more fever in sailing, and is now refitting my sailboat. As sometime I encounter foggy weather, I am planning to add a radio reflector on her; and would like to seek your advise.
I know there are some selling in the market, but I am a DIY person that I would like to DIY myself, my current idea is to use a plastic white colour water pipe (~2-3' dia) and filled with crumped aluminium paper inside, and hang it on the backstay on my boat.
But I am not an "electronic" man, it is difficult to me.........
1. What is the study about the effectiveness of radio inefficiency, I can't find it on the web.
2. There are active / passive transponder, I suppose both type need power (electric)? am I right? ...... (being a NON-electric man, I wish to minimize electric as far as possbile.. :> )
3. The transponder would reflect/amplify a 2.5GHz RF signal which I am not sure it would cause any interference in HK, or violation to the law.... ( because I found from OFTA website that the 2.5GHz will be allocated to the WiMAX usage...)