Conversion Table - Gigahertz Solutions HF58B Instruction Manual

Digital High Frequency Analyser HF58B
Measurement ranges of the HF58B
Instrument as delivered,
i.e. without preamplifier or attenuator
switch "Adapter"("Pegelanpassung") to "0 dB"
Range
Displayed value & unit
Coarse 0.01 - 19.99
Medium 00.1 - 199.9
Fine 0.01 - 19.99
Simply read out, no correction factor
With ext. Attenuator DG20,
switch "Adapter" to "Attenuator -20 dB"
Range
Displayed value & unit
Coarse 1 - 1999 mW/m²
Medium 0.01 - 19.99
Fine .001 - 1.999
Simply read out, no correction factor
With ext. Preamplifier HV10,
switch "Adaptor" to "Amplifier +10dB"
Range
Displayed value & unit
Coarse 00.1 - 1999
Medium 0.01 - 19.99
Fine .001 - 1.999
Simply read out, no correction factor
With ext. Preamplifier HV30,
switch "Adapter"("Pegelanpassung") to "0 dB"
Range
Displayed value & unit Actual unit
Coarse 0.01 - 19.99 mW/m²
Medium 00.1 - 199.9 µW/m²
Fine 0.01 - 19.99 µW/m²
Same decimal point, but next smaller unit
(Coarse = grob; Medium = mittel; Fine = fein)
© Gigahertz Solutions GmbH, 90579 Langenzenn, Germany
mW/m²
µW/m²
µW/m²
mW/m²
mW/m²
µW/m²
µW/m²
µW/m²
Why no column „dBm"?
µW/m²
Most recommended limiting values for HF radiation are
nW/m²
given in W/m² (sometimes also in V/m), which is why
this instrument is displaying in power density, µW/m²
nW/m²
resp. mW/m². A display in dBm as e.g. on a spectrum
analyzer requires transformation by a complicated
formula, which depends on frequency and specifics of
the antenna used. A "reconversion" therefore does not
make sense.
Revision 4.5 (December 2006)

Conversion Table

( µW/m² to V/m )
µW/m² mV/m µW/m² mV/m µW/m²
0,01 1,94 1,0 19,4 100
- - 1,2 21,3 120
- - 1,4 23,0 140
- - 1,6 24,6 160
- - 1,8 26,0 180
0,02 2,75 2,0 27,5 200
- - 2,5 30,7 250
0,03 3,36 3,0 33,6 300
- - 3,5 36,3 350
0,04 3,88 4,0 38,8 400
0,05 4,34 5,0 43,4 500
0,06 4,76 6,0 47,6 600
0,07 5,14 7,0 51,4 700
0,08 5,49 8,0 54,9 800
0,09 5,82 9,0 58,2 900
0,10 6,14 10,0 61,4 1000
0,12 6,73 12,0 67,3 1200
0,14 7,26 14,0 72,6 1400
0,16 7,77 16,0 77,7 1600
0,18 8,24 18,0 82,4 1800
0,20 8,68 20,0 86,8 2000
0,25 9,71 25,0 97,1 2500
0,30 10,6 30,0 106 3000
0,35 11,5 35,0 115 3500
0,40 12,3 40,0 123 4000
0,50 13,7 50,0 137 5000
0,60 15,0 60,0 150 6000
0,70 16,2 70,0 162 7000
0,80 17,4 80,0 174 8000
0,90 18,4 90,0 184 9000
DRU0161 KW162006
mV/m
194
213
230
246
261
275
307
336
363
388
434
476
514
549
582
614
673
726
777
824
868
971
1063
1149
1228
1373
1504
1624
1737
1842
Page 15