Homepage - RF Cafe
Webmaster: Kirt Blattenberger | KB3UON | Sitemap | ©1996-2014     Visit RF Cafe on
      Menu below is just a small sample of what is here!          Visit RF Cafe on Facebook Visit RF Cafe on Twitter Visit RF Cafe on LinkedIn
Custom Search
More than 10,000 searchable pages indexed.
•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

Radar Equation, 2-Way

These are the tried & true radar equations used for decades. Transmitter power, target distance and radar cross-section (RCS) are used along with free-space loss (Friss equation), and antenna gains to calculate the power that arrives at the input of the receiver. These equations cover both monostatic (transmitter and receiver in same location) and bistatic (transmitter and receiver in different locations).

Click here for an online calculator.

Monostatic (Tx and Rx in same location)
Radar equation formula monostatic bistatic - RF Cafe Radar equation formula monostatic bistatic - RF Cafe
Bistatic (Tx and Rx in different locations)
Radar equation formula monostatic bistatic - RF Cafe Radar equation formula monostatic bistatic - RF Cafe
Keep all units consistent.
Losses due to atmospheric absorption and antenna polarization are not included.
where: Pr = Received peak power ( W )
Pt = Transmitted peak power ( W )
Gt = Gain of transmitter antenna ( ratio, not dBi )
Gr = Gain of receiver antenna ( ratio, not dBi )
λ = Transmitted wavelength ( m, cm, in, etc. )
σ = Radar cross-section of target - RCS ( m2, cm2, in2, etc. )
R = Range ( m, cm, in, etc. )
RTx = Transmitter range to target ( m, cm, in, etc. )
RRx = Receiver range from target ( m, cm, in, etc. )
c = speed of light

              Radar Applets: Pulse Repetition Frequency (PRF)
Monostatic Radar

A Disruptive Web Presence

Custom Search
Over 10,000 pages indexed! (none duped or pirated)

Read About RF Cafe
Webmaster: Kirt Blattenberger

RF Cafe Software

RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
frequency conversion & filters

RF & EE Symbols Word
RF Stencils for Visio

Product & Service Directory
Personally Selected Manufacturers
RF Cafe T-Shirts & Mugs

RF Cafe Software

Calculator Workbook
RF Workbench
Smith Chart™ for Visio
Smith Chart™ for Excel
Your RF Cafe Progenitor & Webmaster
Click here to read about RF CafeKirt Blattenberger... single-handedly redefining what an
                                 engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem! (Seize the Day!)

5CCG (5th MOB): My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website