But I expect that like most digital instruments it is +/- 1 digit at the last
digit, so a
reading of 00.2 degree could actually be from 00.1 to 00.3 and still be in
tolerance.
And I thought the Timenuts group was A/R.
73, Dick, W1KSZ
> From: BobK8IA@aol.com> Date: Tue, 22 Jan 2008 17:03:20 -0500> To:
> xdavid@cis-broadband.com; towertalk@contesting.com> Subject: Re: [TowerTalk]
> Plumbing a tower> > > In a message dated 1/22/2008 2:53:29 P.M. US Mountain
> Standard Time, > xdavid@cis-broadband.com writes:> > Three inches out of 100
> feet also requires an accuracy of 0.3 inches for > a plumb bob string hung
> from a 10 foot section of tower.> > Three inches out of 100 feet calculates
> out to be a total angle of 0.14 > degrees. By that criteria, the 0.1 degree
> resolution of the digital > angle gauge I used doesn't seem like that much
> overkill. I guess I'm > just one of the particular ones ...> >
> http://i228.photobucket.com/albums/ee141/xazdave/HD-70_Tower_Leg_Angle_89r1Deg>
> rees.jpg> > 73,> Dave AB7E> > > > > > Dave;> > Steve was quoting EIA/TIA-222
> as it pertains to guyed towers (deviation from > true vertical no more than 1
> part in 400 or 3" in 100'). For self supporting > towers, like yours, the
> spec calls for max
deviation to be no more than 1 > part in 250, or roughly 4.8"in 100 ft, i.e.
3.36" for your 70 foot AN Wireless > tower. ;-) > > 73, Bob K8IA> > > > >
**************Start the year off right. Easy ways to stay in shape. >
http://body.aol.com/fitness/winter-exercise?NCID=aolcmp00300000002489>
_______________________________________________> > > >
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