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SH-60S-AOA extends the capability of the SH-60S-TC by adding the ability to triangulate the location  

of an interferer on a map for signals between 9 kHz & 6 GHz.

SH-60S-AOA, RF Spectrum Analyzer

SH-60S-AOA Triangulation

For more info: 

t: 440.248.1200

e: [email protected]

www.birdrf.com

quick-start-guide-signalhawk-AoA-08302022

Triangulation is one technique you may use to determine the location of an of an RF 

emitter. The principle is to take three or more measurements from different locations, 

with each measurement location being 80 to 100 degrees in azimuth away from the 

location of the previous measurement. See below for an example of the triangulation 

technique.  

Due to reflections of the emitter’s RF signal (multi-path) and the gain and directivity of 

the antenna used with the SignalHawk, the exact location of the emitter may not be 

pinpointed with the first three measurements. However, the measurements will form a 

triangle in the area of the emitter. Making additional measurements in the vicinity of the 
triangle formed by the initial measurements, will help refine the location.

k

 Tap the System Settings icon.

l

 Tap the GPS 

button to turn 

GPS on.

m

 Tap Measure

n

 Select AoA Locate

o

 Press OK

AoA Locate (Angle of Arrival)

j

 Turn on SignalHawk’s WiFi and 

connect to a WiFi network.

Start of measurement

Slowly rotate 360°

Tap SAVE

p

 Tap MAP to download 

an offline map.

q

 Tap to START measurement.

r

 Connect a handheld directional antenna, tuned to the 

frequency of the interfering signal to the SignalHawk.

Red line indicates 

direction of 

strongest signal.

Repeat until 3 or more 

measurements have 

been completed & form 

a triangle shape near the 

assumed position of the 

emitter.

Spectrum Mask

Waterfall/spectrogram Display

j

 Tap on Measure

k

 Scroll to Spectrum Mask

l

 Press OK

Tap here to collapse 

or expand screen.

Tap here to create 

your own mask.  Press 

Save Mask when done.  

Clear All to erase mask 

settings.

Tap Load 

Mask to use 

a previously 

saved mask.

j

 Tap on DISPLAY

k

 Select Waterfall or SPEC&WF, press OK

l

 Selecting Spectrum returns to spectrum 

analyzer display

SPEC&WF

Waterfall

First 

Measurement

Second Measurement

Second

Measurement

SignalHawk

Location

First 

Measurement

Third

Measurement

Third Measurement

Second

Measurement

Emitter 

Location

First 

Measurement

First Measurement

Measured Signal 

St Azimuth

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