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Old 04-21-2007, 08:12 PM   #1
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Default My dB test results

My dB test results

Please note:

The roads outside my house are busy. I'm on a triangle shaped lot so I have traffic on two sides I got readings of 60+ dB as vehicles went by my driveway on the "quiet" side with the generator off. Traffic was steady on the busy side. Typical Saturday morning around here. I set up for the test and then my neighbors landscaper showed up and started weed wacking. Another neighbor had a saw going.

The second thing to note is this dB meter is old. It was made by Realistic.

With the muffler facing toward the dB meter at 7 meters:

Econo on: 57dB
Econo off: 62dB
800 watt load, econo off: 62dB

With the muffler facing away from the dB meter at 7 meters:

Econo on: 57dB
Econo off: 61dB
800 watt load, econo off: 61dB

With the front of the generator facing the dB meter at 7 meters:

Econo on: 56dB
Econo off: 57dB

I didn't put the 800 watt load on when the front of the generator was facing the dB meter, the 800 watt load doesn't seem to matter.

The two sides are where the noise comes from. Air intake vents are on the left side. Exhaust and air outlet are on the right side.

I'll have to find a better location to test it. Somewhere away from road noise, wind, neighbors wind chimes.........
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Old 04-21-2007, 08:43 PM   #2
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jkmcgrath on rv.net posted Honda Eu2000I and Kipor KGE3000TI db test results here in less than ideal conditions.

http://www.rv.net/forum/index.cfm/fu...2.cfm#19222642

copied:

Honda Eu2000I (2 hours on gen) @ 21' 900w load (56.25%), db meter "a" weighted and pointed to the front panel
eco on = 60db (case/gen considerable vibration)
eco off = 64db (case/gen smooth)

Kipor testing next.

EDITED:

Kipor KGE3000TI (8 hours on gen approx) @ 21' 1700w load (60.7%), db meter "a" weighted and pointed to the front panel
eco on = 63db (case/gen some felt vibration)
eco off = 65db (case/gen smooth)

observations,

The Kipor to my ear is more pleasing, the Honda noticably shakes in eco mode. The Kipor's inverter is louder than the Honda. The 50lb weight of the Honda is obviously nice. :B

Too windy/gusty and too much traffic today for seeing how "quite" they are capable of. The wind gusts and passing cars can clearly be heard over either gen. DB's measured the same at different points during the test (cold or warmed up)


---------------------------------------------

I found an article at Camping Life: http://www.campinglife.com/output.cfm?id=1047547

Noise levels from their testing:

Recorded Sound Levels @ 20 Feet

HONDA EU1000i
(Eco-Throttle Switch On)
Exhaust side: 60 dB(A)
Broadside: 56 dB(A)
Exhaust side away: 54 dB(A)
(Eco-Throttle Switch Off)
Exhaust side: 67 dB(A)
Broadside: 63 dB(A)
Exhaust side away: 61 dB(A)

HONDA EU2000i
(Eco-Throttle Switch On)
Exhaust side: 60 dB(A)
Broadside: 57 dB(A)
Exhaust side away: 56 dB(A)
(Eco-Throttle Switch Off)
Exhaust side: 68 dB(A)
Broadside: 64 dB(A)
Exhaust side away: 63 dB(A)

YAMAHA EF1000iS
(Economy Control Switch On)
Exhaust side: 66 dB(A)
Broadside: 61 dB(A)
Exhaust side away: 59 dB(A)
(Economy Control Switch Off)
Exhaust side: 68 dB(A)
Broadside: 65 dB(A)
Exhaust side away: 64 dB(A)
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Old 05-03-2007, 07:25 PM   #3
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60 db of ambient noise? No wonder you're a camping fanatic!
Thanks for your efforts.
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Old 05-03-2007, 08:34 PM   #4
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The speed limit on the "quiet" side is 30kph and it's 40kph on the noisey side! That's like 15 & 25 mph. I think a lot of the traffic is doing 40 mph.

Thank goodness it isn't constant.
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