micro is hundredths pico is thousands.  If it's resonant frequency for an 
antenna that is not a dipole it's 492/frequency.  If it's a delta loop or 
quad, the number is 1038/frequency.  Just divide the whole number into the 
two or three positions and it will come out right every time.  I don't have 
a scientiffic calculator but Dick Bash did that very thing back in the 
seventies and that's why he was so popular.  It certainly made my life 
easier.  73- pat kk3f
----- Original Message ----- 
From: "Shawn Pearson" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, May 24, 2012 8:21 AM
Subject: calculating resonant frequencies for the Extra exam


> Howdy:
>
> Is there a method to calculate a resonant frequency without having to  =
> go through  the unit conversion process(micro, pico), and still end up =
> with the correct answer in MHz?  I don't have a "scientific" calculator, =
> so would like to avoid unit conversion if possible.  The question that =
> i'm struggling with involves both micro, and pico units, and I would =
> very much appreciate it if someone on the List was aware of a math =
> "shortcut" that would simplify answering these questions as much as =
> possible.
>
> Much thanks,
>
>
>
> David S. Pearson-wa4dsp
>