shot gun mic

bond000

New Member

• Apr 15, 2009

• #1

could anyone give me a shotgun amp circuit for long range listening? is it really possible to intercept a conversation at 100 feet? i made a few amps but, the background noises are overriding it. like birds,wind etc. are there any filter circuits ? please help.

 

dknguyen

Well-Known Member

Most Helpful Member

• Apr 15, 2009

• #2

Are you using a directional microphone? YOu will always have trouble with wind though and any other noise within the cone of reception.

 

Last edited: Apr 15, 2009

bond000

New Member

• Apr 15, 2009

• #3

could some one give me a good amplifier circuit to use with shot gun mic?

 

blueroomelectronics

Well-Known Member

• Apr 15, 2009

• #4

It would appear to be the microphone design not the amp.

 

bond000

New Member

• Apr 15, 2009

• #5

Yes. you are right. but, i also need an amplifier(for listening in to faint sounds) to use with the mic. could you help me with that?

 

audioguru

Well-Known Member

Most Helpful Member

• Apr 16, 2009

• #6

Any low noise opamp makes an excellent mic preamp.
If sounds from birds and wind cause interference then a highpass filter will remove some of the wind rumbling sounds and a lowpass filter will remove some of the bird sounds leaving you with sound like a telephone.