Chain Saw sound level test

I measured the sound level of my 3 saws today with an old Radio Shack sound level meter. The saws are a Worx 303.1 corded electric, a Stihl MS170 and a Dolmar 5105. Both the gassers are stock and the 5105 has the catalytic muffler. I was cutting on a "sawbuck" standing up with the sound meter on a tripod about a foot to the right and a foot ahead of my right shoulder.

The wood is 6" diameter dry DED (Dutch Elm Disease) Elm which is about the hardest wood you can find around here. I used it because it was handy and slow enough to saw that I had time to read the meter. The sound level could vary almost 5 db A depending on how I held the saw. It was loudest at the start with the saw reved up and held a bit over the far side of the wood. It was reading quieter at the bottom of the cut with the saw held level to keep the chain off the sawbuck and further from the meter.

Results: Worx - about 80 db A
Stihl - about 90 db A
Dolmar - about 100 db A

I cut 5 or 6 cookies with each saw. The Worx chain was chattering which it wasn't doing in softer Manitoba Maple (Box Elder). I think the rakers are a bit too low. It's the standard Oregon S57 91PX chain.

As usual, more research is needed. Suggestions?

 

I wonder how much it would very depending on the rpm in the cut. Many saws have the most torque at a much lower rpm. Hmm now I want to find a noise meter app for my phone.

 

This...



Results:

Dual piped 365 Sp - F'in loud!

 

I downloaded and app for my phone and put my phone about 4 feet from where I was cutting. The highest reading it got was 81db however the app comes with a warning that android phones do not always work well with louder noises due to the noise cancellation and calibration for voice. I am sure my 6100 is pushing more then 81 dB while ripping up some oak. Lol

 

WHAT!!!????????

 

I too was wondering what it would read with a real saw

 

I'll have to find pics but I have a 023L that is a quiet model. Muffler has a tube in it and air filter has baffles also. Here is the thread I made on AS. There are no pics because of the hack.
023L or Stealth Saw from Andre

 

All theese for what reason ???

 

So I don't disrupt the ecosystem while cutting.

 

I'd be scared to measure the DB level of my Mac 125,1-80 gear drive & a couple of the big Homie's.....

Probably be like a Motorhead concert.

 

I have a sound pressure level meter, one of these days I'll have to check out the saws

2 at once 

 

Yeah,the neighbors didn't know what to think after that....

 

I'll give it a try