3-2
Radiated Emission and Immunity testing
3.1.5 The meter receiver
The meter receiver is typically either a radio receiver or a spectrum
analyzer. Either a 120 kHz bandwidth and an output indication calibrated in
dB
μ
V are required.
The calculation of the measured E-field signal level is given by:
where:
m
V
dB
E
μ
=Corresponding Electric field
(
)
V
dB
S
μ
= Measured signal strength
( )
dB
C
1
= Preamplifier interconnecting cable
( )
dB
PA
= Preamplifier gain
( )
dB
C
2
= Interconnecting cable loss
m
dB
AF
1
= Antenna factor
Fig. 3-1
Radiated emission test setup
(
)
( )
( )
( )
+
+
−
+
=
m
dB
AF
dB
C
dB
PA
dB
C
V
dB
S
m
V
dB
E
1
2
1
μ
μ
EU T
Antenna
Pream plifier
R eceiver or
Spectrum Analyzer
3 or 10 m
C able C able
AF
C 1 C 2
PA
S
Summary of Contents for PMM AS02
Page 24: ...1 20 General information Fig 1 17 Typical BL 01 VSWR...
Page 28: ...1 24 General information Fig 1 20 Typical LP 02 VSWR...
Page 32: ...1 28 General information Fig 1 25 Typical LP 04 VSWR...
Page 34: ...1 30 General information Fig 1 27 Typical DR 01 VSWR...
Page 48: ...2 12 Mounting Instruction This page has been left blank intentionally...
Page 54: ...3 6 Radiated Emission and Immunity testing This page has been left blank intentionally...
Page 56: ...Suggerimenti Commenti Note Suggestions Comments Note...
