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[TowerTalk] Ham IV rotor control box

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Subject: [TowerTalk] Ham IV rotor control box
From: n2mg@contesting.com (Mike Gilmer - N2MG)
Date: 29 Nov 2001 05:21:22 -0800
The beauty of including the leading zero is that even if the decimal is faded 
(which is what I suspect happened in the Hygain manual) either from being very 
light at print time or simply from age, one can usually determine that one 
belongs and where!

Using "dots" as the only indication of something important is a no-no.  Just 
like in a schematic at a four-way junction, one should never cross two lines 
like a normal street intersection, hoping that the "dot" will indicate the 
connection. If the dot "disappears", you've redesigned the circuit! ALWAYS 
stagger the connections, then you can still read it. In fact, the dot is 
superfluous!

Bad:

      |
      |
------o-------
      |
      |


Good:

    |
    |
----o---o-----
        |
        |


Engineers and drafters make these mistakes all the time, however. 

Mike N2MG

On Wed, 28 November 2001, Chris BONDE wrote:

> 
> I agree!!  When studying arithmetic and such of mathematics at university, 
> the prof said that the units position had to be filled, no matter 
> what.  Many marks were lost for writting ".4".  He said that that does not 
> exist, being a prof who marked exams what student  was going to argue.  But 
> over the years, I have seen that that is correct and the best way is "0.4" 
> etc.
> 
> Chris opr VE7HCB
> 
> At 07:43 PM 2001-11-28 -0800, Mike Gilmer - N2MG wrote:
> 
> >It may not be a typo at all, but an unforgivable
> >mistake.  It is NEVER a good idea to publish technical
> >information with values like ".4".
> >
> >It should always be written with a leading zero as
> >in "0.4".
> >
> >They teach you that in Engineering Drawing 101.
> >
> >Shame on them!
> >
> >73 Mike N2MG
> >
> >On Wed, 28 November 2001, "Dan Evans" wrote:
> >
> > >
> > >
> > > Many thanks Tom & All,
> > >
> > > It would seem that this manual has a slight, but important, typo!  Looks
> > > like it may be time to let my friend in on the good/bad news.
> > >
> > > The good news is there doesn't seem to be anything wrong with the control
> > > box...
> > >
> > > The bad news is there doesn't seem to be anything wrong with the control
> > > box...
> > >
> > > 73 & thanks again,
> > > Dan

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