That formula also works if you use the proper units.

From: Jaime Solorza 
Sent: Tuesday, March 10, 2015 2:52 PM
To: Animal Farm 
Subject: Re: [AFMUG] Free Space Loss calculator

i want to sleep.....i was asked about my calculations and they sent me that 
formula.   I had seen it before but I use the one you do for quick stuff and 
use RM or other calculators with more bells and whistles to do actual.    


Jaime Solorza 
Wireless Systems Architect
915-861-1390

On Tue, Mar 10, 2015 at 2:11 PM, Chuck McCown <[email protected]> wrote:

  Well do you want to use miles and GHz or meters or feet KHz or or or?
  This formula may be for meters and cycles per second.  

  That is what the constant does, the 32.44 it adjusts for units.

  Then the Gt and Gr are the gains of the antennas I presume.  



  From: Jaime Solorza 
  Sent: Tuesday, March 10, 2015 2:05 PM
  To: Animal Farm 
  Subject: [AFMUG] Free Space Loss calculator

  Which one> 
  96.6 + 20logD + 20log F  Where F & D are GHz and Miles.

  or  20logD + 20log F  + 32.44 -Gt -Gr = FSPL  where t is tx pwr and r is 
receiver sensitivity.


  Jaime Solorza 
  Wireless Systems Architect
  915-861-1390

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