High distance Microphone (help)

[arash_micro]

distance microphone

Hi all.
I want to make a long distance Microphone (for example 30 meter or something ).
Can you help me.
Thanks.

 

[Azaruk]

long distance microphone

I had great success with a shotgun microphone which I constructed from an old (VERY OLD) magazine article. Fortunately, I have the original article scanned and stored. (Who says it's BAD to hoard stuff!!!)

When I built mine, I metricated all the dimensions and reduced the pipe diameter a bit. The original used an electret mic insert, but I upgraded it to a "real" mic insert which I salveged from a mic with a damaged body.

I built a small but high quality mic amp, powered from a 9V battery which was built into the microhone assembly.

I have used mine for many years (I am a pert-time wildlife film-maker) with great success. I is a bit unwieldy, but when mounted on a tripod alongside the camera, the results are impressive.

I would imagine that plastic tubing (high density) would work just as well as the aluminium tubes I used in the original.

Enjoy.