Crow Busters Forum

CroKiLR4evR · Veteran Member

e caller sound distance

SHANEDOG · Guru

The FX3 have better volume and clarity than the old style tape machines (unless they were modified with amps). I find that the faster you can change a sound with out have to move the more shots you will get. Last week I would have scouts come in silent for a fly by,they would zip in fast for a look,then turn to fly away before I could get a good shot,so I would hit the distress call and they would bank back into my kill zone for another look and that was all it took. I believe the e callers with remotes are the way to roll.
I use hand calls mainly if the crows are close working through the area,I mainly use come here,feeding,and hailing calls by hand.It works for me. smile

Minnesota John · Senior Member

Depends on the wind over 15 MPH not going to work.

John

jd1983 · Senior Member

Get the e caller off the ground sound will travel better

SHANEDOG · Guru

JD
Has a great point,I made some stands with a platform with foam or carpet on it to really send the sound out with no vibration. smile

Bob · Guru

Hello Shane,

If you are calling with a hand call and using hard calls such as the fighting call you're range is 175 to 200 yards max. This is only if you have a breeze at your back and the birds are downwind of you're position.

With a good e-caller that has good volume you can call them up to 1/2 a mile with ease.

Bob A.

Big Honkers · Guru

if there is no wind you should be fine.

if there is a wind and it is blowing the sound toward the crows you should be fine.

if the wind is decent and blowing away from the flyway it is tuff to say. might be trouble.

...like others have said, keeping the caller up above the brush is not a bad idea if there is any doubt about loudness.

CroKiLR4evR · Veteran Member

i havnt purchased an ecaller yet. but i have a descent size radio that i camo taped and with 8(i beleive) d cell batteries it does scream quite loud. i usually did hang it from a tree.

Minnesota John · Senior Member

I always wonder if it is worth the work of putting my speakers up so I asked a national known expert in sound the following questions and here are his answers:

In other words how much more is the speaker if elevated of the ground.

[Rich Peppin] ----------- a) if up, then it is a founction of frequency and low frequencies will travel away tpward the receiver while most high frequencies will travel up. b) if touching the ground then it is a function of the line-of-sight from speaker to receiver.

If receiver and speaker are on the same plane, i.e. like hard ground, then the loudspeaker will actually be louder closer to the ground because all the sound power must be reflected. It will increase it by 3 dB. But as the sound propagates, the ground will have an effect on the sound that is closer to the ground. So I say it is a wash. In either case, the sound will decay about 6 dB per doubling of distance. So if it reads 80 dB at 5-ft, then 10-ft would be 74 dB, 20-ft would be 68 dB, 40-ft would be 62 dB and so on until the sound was the same as the background sound. Then, roughly, inaudible.

BUT--- this does not include the speaker “throw angle,” the spread of the speaker. If you elevate it more of the sound can spread to more receivers.

jd1983 · Senior Member

To much technoligcal info at 4 am ahhhhhhhh
set caller off ground turn on and shoot what you can if it doesnot work order bigger speakers. My brain hurts.

Skip · Guru

I think the crow's fine hearing has been underestimated. With little or no wind, a mouth call can attract crows at much further distances than mentioned here. Having said that, the amount of "wind power" the mouth caller has...is directly proportional to the distance the bird's ability to hear. I routinely call crows at 1/4 mile.. and perhaps further ( it is impossible to know precisely ) but often the crows hear me waaaay before I can hear them and when I do finally hear them.. they were already hot and incoming.

Skip

-- Edited by Skip on Friday 6th of August 2010 02:03:56 PM

jd1983 · Senior Member

True it makes sense how many times do you hear no crows but in 5-10 min they are there

SHANEDOG · Guru

Minnesota John wrote:

I always wonder if it is worth the work of putting my speakers up so I asked a national known expert in sound the following questions and here are his answers:

In other words how much more is the speaker if elevated of the ground.
[Rich Peppin] ----------- a) if up, then it is a founction of frequency and low frequencies will travel away tpward the receiver while most high frequencies will travel up. b) if touching the ground then it is a function of the line-of-sight from speaker to receiver.

If receiver and speaker are on the same plane, i.e. like hard ground, then the loudspeaker will actually be louder closer to the ground because all the sound power must be reflected. It will increase it by 3 dB. But as the sound propagates, the ground will have an effect on the sound that is closer to the ground. So I say it is a wash. In either case, the sound will decay about 6 dB per doubling of distance. So if it reads 80 dB at 5-ft, then 10-ft would be 74 dB, 20-ft would be 68 dB, 40-ft would be 62 dB and so on until the sound was the same as the background sound. Then, roughly, inaudible.

BUT--- this does not include the speaker “throw angle,” the spread of the speaker. If you elevate it more of the sound can spread to more receivers.

OK John
Where did you get this info?? SnoCamoMan??

Minnesota John · Senior Member

I work with this guy on some industry stuff.

http://www.scantekinc.com/releases/pr092807a.htm

Super nice fellow I may add.

Thanks

John

jd1983 · Senior Member

That's on flat hard ground and I am a dummy how much better is a decible? I know the higher the number the louder but is 3 = 100 more yards ?