ROM Elektronik HFA-3, Руководство пользователя

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Seite 14
ROM-Elektronik GmbH
Included in the scope of delivery of the HFA-3 is a logarithmic- periodic an-
tenna (logper antenna) for the frequency range 900 MHz to 2.6 GHz, for fi-
nancial reasons in the form of a printed circuit board! With this, the
direction and polarization of the RF radiation can basically be exactly de-
termi-
ned.
Table 3: Conversion of the radiant flux density V/m and A/m
S in mW/m
2
S in µW/cm
2
E in V/m H in A/m H in mA/m
200 20 8,68 0,023 23,03
100 10 6,14 0,016 16,29
50 5 4,34 0,012 11,52
20 2 2,75 0,007 7,28
S in µW/m
2
S in nW/cm
2
E in mV/m H in mA/m H in mA/m
Measuring range of the HFA-3
10000 1000 1940 0,005 5,15
5000 500 1370 0,004 3,64
2000 200 870 0,002 2,30
1000 100 614 1,629 1628,70
500 50 434 1,152 1151,60
200 20 274 0,728 728,36
100 10 194 0,515 515,03
50 5 137 0,364 364,18
20 2 86,8 0,230 230,33
10 1 61,4 0,163 162,87
5 0,5 43,4 0,115 115,16
2 0,2 27,5 0,073 72,84
1 0,1 19,4 0,052 51,50
0,5 0,05 13,7 0,036 36,42
0,2 0,02 8,6 0,023 23,03
0,1 0,01 6,1 0,016 16,29
Seite 39
ROM-Elektronik GmbH
ring the measurement in the individual filter areas (e.g. GSM900) either for
the field strength or the power flux density (click the icon Mode Change).
The displays are color coded:
.
It is particularly helpful at this point to automatically set adjust the mode in
the display list. All filters (frequency bands) are then processed at intervals of
8 seconds, one after each other.
Reference: This adjustment functions only in case of on-going measurement
Readings:
green Fieldstrength E in V/m
red
Radiant flux density S in µW/m
2
Maxima: red Allpass
orange GSM900
yellow GSM1800
green DECT
blue 3G (3G (UMTS))
magenta WLAN
Anzeige Display, Feldstärke E, Modus: automatisch