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Mowing & Methanol

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zeeglen
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Re: Lawnmower problem solved
zeeglen   6/10/2015 1:25:43 AM
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I like your thinking!  Another solution - the more you water, the more you have to mow!  Save water!

MeasurementBlues
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Lawnmower problem solved
MeasurementBlues   6/9/2015 12:06:50 PM
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I solved the problem of mowing the lawn by moving to a house without one. Mowing was a pain, even though it only took 20 minutes. I had to do it on a weekend, and on a dry day. Try getting those in New England!

Doug_S
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Re: why does iRobot need this frequency?
Doug_S   6/8/2015 11:22:00 PM
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So they think they should be able to use frequencies reserved for scientific uses, but if some other commercial vendor wanted to use them as well they'd object?  They're really full of themselves!  An automated lawnmower is not something anyone really needs, let alone a use that should have exclusive access to a protected frequency!

zeeglen
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Re: why does iRobot need this frequency?
zeeglen   6/8/2015 5:40:23 PM
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@Doug_S why not use different frequencies?

Maybe they figure that with no other sources of RF interference they can avoid the potential problem of a runaway lawnmower.

dt_hayden
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my speculation
dt_hayden   6/8/2015 3:30:02 PM
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"I can only speculate why iRobot decided against a GPS-based marker system"

 

Probably not accurate enough.

Doug_S
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Re: why does iRobot need this frequency?
Doug_S   6/8/2015 3:04:25 PM
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Yes, this makes no sense to me.  Rather than filing for an exception, why not use different frequencies?  It isn't as though those frequencies are on the only ones that could possibly work for a robotic lawn mower.  There's something they're not telling us....I sure hope the FCC tells them to go pound sand!

DCH0
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why does iRobot need this frequency?
DCH0   6/8/2015 1:21:19 PM
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From the Bloomberg story; "iRobot, better known for its self-guided Roomba vacuum cleaners and bomb-disposal equipment, has filed a request with the U.S. Federal Communications Commission to use airwaves for mowers to be guided wirelessly from beacons on stakes pounded into the lawn."
iRobot is stating that they need RF beacons operating between 6.240 and 6.740 GHz as markers on the periphery of the lawn or field.  They are not answering the simple question why they need 6.650 to 6.6752 GHz which is of great scientific importance.

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