I thought I read somewhere in an article that was mentioned on this list 
a couple years ago the number was 1005.  hmmm.  The shadow knows!!
73
Butch
WA0VJR
Node 3148
Wallace, ks.


On Thu, 
24 May 2012, PATRICK GORMLEY wrote:

> I made a mistake.  The driven element for a quad/delta loop is
> 1030/frequency.
> ----- Original Message -----
> From: "PATRICK GORMLEY" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, May 24, 2012 8:54 AM
> Subject: Re: calculating resonant frequencies for the Extra exam
>
>
>> 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
>>>
>>
>
>