BIRD SignalHawk SH-42S-TC Quick Start Manual page 2

SH-60S-AOA Triangulation
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.
Measured Signal
Strength + Azimuth
Emitter
Location
First
Measurement
SignalHawk
Location
First Measurement
Second
Measurement
Second Measurement
Third
Measurement
Second
Measurement
First
Measurement
Third Measurement
SH-60S-AOA extends the capability of the SH-60S-TC by adding the ability to triangulate the location
AoA Locate (Angle of Arrival)
First
Measurement
r
Connect a handheld directional antenna, tuned to the
frequency of the interfering signal to the SignalHawk.
Start of measurement Slowly rotate 360°
Tap SAVE
SH-60S-AOA, RF Spectrum Analyzer
of an interferer on a map for signals between 9 kHz & 6 GHz.
j
Turn on SignalHawk's WiFi and
connect to a WiFi network.
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
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.
p Tap MAP to download
an offline map.
q
Tap to START measurement.
For more info:
t: 440.248.1200
e: appengineering@birdrf.com
www.birdrf.com
Spectrum Mask
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.
Waterfall/spectrogram Display
j Tap on DISPLAY
k Select Waterfall or SPEC&WF, press OK
l Selecting Spectrum returns to spectrum
analyzer display
SPEC&WF
Tap Load
Mask to use
a previously
saved mask.
Waterfall
quick-start-guide-signalhawk-AoA-10082019