40–
19.4 Electric field strength measurement <E/F ANT>
Measures electric field strength by connecting an optional antenna.
Allows using an antenna other than options by creating and inputting the original compensation table.
(Refer to “23.5 Writing of original compensation data” for how to create and write)
“Specifications of the antenna (antenna gain and VSWR are specified at a center of frequency range).”
* Measured value varies depending on how to have 2650/2652/2658 main unit. Moreover, if the
person who has is different, measured value will vary. Because AN305 is 1/4 λ whip antenna.
Therefore, in the measurement used an antenna AN305, measurement errors occurs. The error
value is several dB or 10dB or more. In order to lessen the error value, use it, separating from
the body as much as possible so that there is no influence of human body.
Items AN301 AN302 AN303 AN304 AN305 AN306
Type Sleeve Sleeve Sleeve Sleeve 1/4 λ whip Sleeve
Frequency range 0.8 to 1.0GHz 1.25 to 1.65GHz 1.70 to 2.20GHz 2.25 to 2.65GHz 300 to 500MHz 4.7 to 6.2GHz
Antenna gain +1dBi or higher +1dBi or higher +1dBi or higher +1dBi or higher +1dBi or higher +1dBi or higher
VSWR 1.5 or lower 1.5 or lower 1.5 or lower 1.5 or lower 1.5 or lower 1.5 or lower
Dimensions 7.5φ×250mm 7.5φ×250mm 7.5φ×180mm 7.5φ×180mm 8.0φ×195mm 7.5φ×100mm
Weight approx.20g approx.20g approx. 20g approx.20g approx.30g approx.10g
Reference level
setting range
(except for the
minimum value
in screen shift)
93 to
143dBµV/m
96 to
146dBµV/m
98 to
148dBµV/m
100 to
150dBµV/m
87 to
137
dBµV/m
109 to
159dBµV/m
Antenna
AN301
AN302
AN303
AN304
AN305
AN306
[Measurement environment]
* Please receive by the rear side of
F4
[Antenna connection]
2650/2652/2658
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