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Old 02-12-2012, 09:21 AM   #101
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A change in power ratio by a factor of 10 is a 10 dB change. A change in power ratio by a factor of two is approximately a 3 dB change

Honda = 56 dB
Champion = 64 dB

Nearly 6 Times as loud!
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Old 02-12-2012, 10:14 AM   #102
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I know I'm resurrecting this thread from a 5 month hibernation, but here's a new take: anyone have any luck with the Coleman CMO4143 1850W portable generator? It's 4-stroke, 64#, 64db, and $199 delivered to my door. I know it's not going to run the AC, but it'll do everything else at a fraction of the cost of the Honda, with a little more noise...thoughts?
As long as you stay at least 1/2 mile from the nearest camper, have a good set of noise cancelling headphones for yourself, and don't worry about the delicate electronics in your trailer, that generator should work fine.
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Old 02-12-2012, 11:21 AM   #103
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Here's the eBay link:

Coleman CM04143 1850W 2.4Hp Portable Gas Generator (871613005566) | eBay

Specs say it's 1200W with 1850W peak. It would be mostly for boondocking, maybe only occasional campground use.
I just picked up a 3650 running watt's and 4550 Surge watt generator from Sams Club - called a Black Max Portable Generator

It is not as loud as the Commercial or job site generator and not as quit as the inverted type but for $320 out the door it so far seems to be the ticket for me - After I am finished uploading a video on Youtube I made of the Generator I will post the link

Ok so it finished uploading so here is the link


This is when I first got it and was running for it's 30 minute break in at my office
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Old 02-12-2012, 01:23 PM   #104
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After spending $35K for a truck, $20K for a RV trailer; the little added cost for a quiet generator seems rather inconsequential? It's like the complaining I see about the high cost of RV toilet paper; really, I've seen it in forums!
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Old 02-12-2012, 01:30 PM   #105
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I just picked up a 3650 running watt's and 4550 Surge watt generator from Sams Club - called a Black Max Portable Generator

It is not as loud as the Commercial or job site generator and not as quit as the inverted type but for $320 out the door it so far seems to be the ticket for me - After I am finished uploading a video on Youtube I made of the Generator I will post the link

Ok so it finished uploading so here is the link


This is when I first got it and was running for it's 30 minute break in at my office
Wow.....and that is without a load on it.
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Old 02-12-2012, 01:39 PM   #106
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Wow.....and that is without a load on it.
With a Load the pitch actually doesnt make a diffrence or change - I will drag it out today and get a video from a distance and walk up on it to show how loud it is.
Besides when the A/C is on inside the camper you do not hear the generator even with it 10 feet off the back of the camper

I wouldnt use this in a Campground but for what I am using it for it will work out great.

wow as in good or bad?

My brother has a 6,000 watt Generator and it is twice as loud as this one.
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Old 02-12-2012, 02:48 PM   #107
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That's pretty much what I thought..too loud. I was also looking at the Generac ix2000, which is inverter technology and safe for the electronics, but I couldn't find a db rating for it, which is suspicious to say the least.. Looks like the Yamaha it is...quiet, expensive, and able to run the 13,500 AC.
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Old 02-12-2012, 03:16 PM   #108
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wow as in good or bad?
Wow as in noisy. I have never done a video on youtube, but when I drag my generator our this spring and gas it up, I will try to do a video at idle, and also when the AC starts up. Of course, I might surprise myself and realize the Yami ain't as quiet as I think it is.

Quote:
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Besides when the A/C is on inside the camper you do not hear the generator even with it 10 feet off the back of the camper

I wouldnt use this in a Campground but for what I am using it for it will work out great.
That is a good way to look at it. Inside with the AC on, you ain't a gonna hear the genny outside. And if you don't use it around other campers, who cares besides you ??
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Old 02-12-2012, 04:11 PM   #109
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Sound db level

Quote:
Originally Posted by acadianbob View Post
A change in power ratio by a factor of 10 is a 10 dB change. A change in power ratio by a factor of two is approximately a 3 dB change

Honda = 56 dB
Champion = 64 dB

Nearly 6 Times as loud!
Not meaning to be argumentative but sound level db and power level don't work quite the same. Here is a chart for sound level db and comparisons.

dB SPL in Real Life

To give you an idea of how a dB SPL measurements relate to daily life, a listing of the approximate sound pressure level for various sounds is provided below. (From http://www.state.me.us/spo/landuse/docs/NoiseTABulletin.pdf - with the “Approximate Loudness” column added) (see also dB SPL and dB(A) SPL discussion on next page)
Sound EnvironmentSound Pressure Level (dBA SPL)Approximate loudness with regard to ordinary conversationThreshold of hearing0Don’t hear anythingBroadcast studio interior or rustling leaves101/32nd as loud as conversationQuiet house interior or rural nighttime201/16th as loudQuiet office interior or watch ticking301/8th as loudQuiet rural area or small theater401/4th as loudQuiet suburban area or dishwasher in next room501/2 as loudOffice interior or ordinary conversation60Ordinary ConversationVacuum cleaner at 10 ft.70Twice as loudPassing car at 10 ft. or garbage disposal at 3 ft804 times as loudPassing bus or truck at 10 ft. or food blender at 3 ft.908 times as loudPassing subway train at 10 ft. or gas lawn mower at 3 ft.10016 times as loudNight club with band playing11032 times as loudThreshold of pain12064 times as loud as conversation (twice as loud as night club)

Best Regards,

Hob
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Old 02-12-2012, 04:16 PM   #110
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We boondock a LOT; mostly in the wilderness! So, we need to recharge our battery for about 60 to 90 minutes every day. And DW likes to have juice in the morning to dry her hair. We often come back from a day of hiking, shower, set up the chairs outside, turn on some music (softly), sip some wine, and read/relax in the sun. We are not running our air but we need to charge our battery. We find that the Honda is nice in these circumstances; it doesn't disturb the scene. Set it out about 30 feet and point it away from us and everyone else. Barely hear it. From 100 feet, you can't hear it at all; which the neighbors appreciate. Just saying; even if you are boondocking, the quiet is nice. Something to consider at least if you are contemplating a generator purchase.

Here's another thought. When we know that we are going to need to run our generator, we try to get a site on the outside of the campground. This way we can point our Honda out into the woods and away from the rest of the campers. I've also seen people that have made little boxes that are small "sound walls" that are open on one side. They do an incredible job of directing the sound away from the campground and your site. Learned this from a National Forest Service campground host. I've also seen people do this in the bed of their pickup and then have the top open to direct sound upward. These are usually the bigger generators that are not so portable.

Peace!
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