77
In the following context, the antenna gain means an absolute gain.
When the antenna gain is a relative gain, it can change into an absolute gain by 2.15 dB.
Absolute gain [dBi] = Relative gain [dBd] + 2.15 dB
As a reference, the conversion formula to electric field strength is indicated below:
E =
√
(480
π
2
x Pa) / (Ga
x λ
2
))
E: Electric field strength [V/m]
Pa: Received electric power [W]
Ga: Antenna gain [times] = 10
(antenna gain [dBi] ÷ 10)
λ
: Wavelength [m] = (3 × 10
8
) ÷ frequency [Hz]
26.
Option
Dipole antenna M401 to M406
Connector : N (P)
Refer to “19.4 Electric Field Strength Measurement” for the
details.
Magnetic field probe CP-2S.
Refer to “19.5 Magnetic Field Strength Measurement” for the
details.
USB printer
With AC adaptor and one roll of paper
Refer to “23. Storage / Print of Screen Image” for the details.
Roll printer (10 rolls)
For USB printer
Specification
Frequency range
:
10 MHz to 3 GHz
Space resolution
:
approx.0.25 mm (depending on objects)
Dimensions
:
outside 12 φ
×135 mm
probe tip 2 mm(W)×1 mm(T)
Connectors
:
SMA(P)
Specification
Printing method
:
Thermal line dot method
Paper
:
80 mm width thermal paper
Power source
:
internal : AA-sized alkaline battery (4 pcs)
external : 7.5 VDC/3 A (dedicated AC
adapter)
Dimensions
:
134(W)×60(H)×180(D) mm
Weight
:
approx.450 g (mainframe only)
