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Table 3-1 Length of λ/4 Ground Antenna [cm]
Theoretical Antenna Length Actual Antenna Length
λ
λ/2
L
R
t
5. Make the distance between antenna as r=l.5m to isolated, adjust the center of a transmitting
antenna and receiving antenna in parallel. See Figure 3-10 to set.
6.
Figure 3-10 Distance between Antennas
Set in condition of the power of main controller as below.
-Power OFF
- 500MHz osciUation switch off
-2 GHz oscillation switch off
-10 GHz oscillation switch off
-Modulation switch (Mod) off
~
7. Turn on the power of main controller,and set the oscillation switch and modulation switch
as below,then execute the Antenna Trainer program.
- Power ON
- 500MHz oscillation switch on
- 2 GHz oscillation switch off
- 10 GHz oscillation switch off
- Modulation switch (Mod) on
8. Open the window of data acquisition in Antenna Trainer program and select an antenna. And
select E-Plane as Plane and adjust to be displayed 0 on gain displayer by adjusting the
quantity of signal attenuation. This adjust is completed, start the data acquisition.
9. The data acquisition is completed, save get radial pattern in file. To confirm the radial
pattern exactly, use the data box. Set the MSP(Max. Signal Position) to 0°, can see exact
radial pattern.
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