Comparison of
the Smart Fieldmeter to portable battery operated
industry
leading field strength measuring instruments
|
Parameter |
Smart
Fieldmeter: RFP-04/PI-01 |
Brand A |
Brand B |
Brand C |
Brand D |
|
Electric field probe type |
Isotropic, RMS, 3-axis. |
Isotropic, RMS, 3-axis, X,Y, Z. |
Isotropic, RMS, 3-axis. |
Isotropic, RMS, 3-axis, X,Y, Z. |
Isotropic, RMS, 3-axis. |
|
Probe mounting |
Mounted on the meter or connected though the cable |
Mounted on the meter |
Mounted on the meter |
Mounted on the meter |
Mounted on the meter |
|
Frequency |
0.2 MHz-3 GHz (other variants available) |
0.1 MHz-5 GHz |
0.1 MHz-3 GHz |
0.1 MHz-3 GHz (other probes available) |
0.1 MHz-2.5 GHz 0.1-1 MHz purely
indicative. |
|
Frequency response |
+/- 1 dB (0.5 MHz-1 GHz), <+/- 2.5 dB (1- 3 GHz) |
+/- 1 dB(1 MHz –4 GHz) |
+/- 1.5 dB (0.1 MHz-1 GHz) <+/- 2.4 dB (1-3 GHz) |
+/- 0.5 dB (10 -300MHz) <+/- 1.5 dB (3 MHz -3
GHz) |
+/- 1.5 dB (1 MHz-1 GHz) <+/- 2 dB (1-2.5 GHz) |
|
Isotropicity |
+/- 0.5 dB (@100 MHz), <+/- 1.5 dB (0.2 MHz-3
GHz) |
+/- 0.7 dB |
+/- 0.5 dB (probe), +/- 1 dB (probe with
meter), |
<+/- 0.8 dB, 0.5 dB ( 930 and 1800 MHz) |
Not specified |
|
Field strength range |
0.2-500 V/m (standard) 0.4-800 V/m (variant UL) |
0.4-800 V/m |
0.6-800 V/m |
0.3-300 V/m |
0.1-200 V/m |
|
Ranges |
4 Ranges: 2, 20, 200, 600
V/m |
Auto range |
Auto range |
Auto range |
4 Ranges: 1, 10, 100, 200
V/m |
|
Resolution |
0.01 V/m |
0.01 V/m |
0.01 V/m |
0.01 V/m |
0.1 V/m |
|
Usable sensitivity |
0.2 V/m |
0.3 V/m |
0.6 V/m |
0.3 V/m |
1 V/m (Accuracy 0.7 V/m) |
|
Calibration accuracy |
+/- 0.5 dB |
Not specified |
+/- 1 dB |
+/- 0.8 dB |
Not specified |
|
Linearity accuracy |
< +/- 1.5 dB 10-150% of any range |
Not specified. |
< +/- 3 dB (0.6-1.25
V/m) < +/- 1 dB (1.25-2.5
V/m) < +/- 0.7 dB (>2.5
V/m) |
Not specified. |
< +/- 0.7 V/m (0.1-1
V/m) < +/- 0.5 V/m (1-10
V/m) < +/- 1 dB (10-100 V/m) < +/- 2 dB (100-200 V/m) |
|
Display units |
V/m |
V/m, mW/cm2, W/m2 |
V/m, mW/cm2, W/m2 |
V/m, mW/cm2, uW/cm2, W/m2 |
V/m, uW/cm2 |
|
Time response |
Multimode: Average: 2 sec, Pulse: 0.1
sec, Peak: 50 ms/14 sec. |
Not specified |
1 sec |
0.15-0.9 sec |
0.4 sec |
|
Zeroing |
Auto zero |
Auto zero |
Auto zero |
Auto zero |
Auto zero |
|
Data storage |
External data logger or PC
link kit |
Internal |
External (high end model -
internal) |
Internal |
Internal |
|
PC interface |
External RS232 |
RS232 |
RS232 |
RS232 |
RS232 |
|
Size |
Meter: 130x80x30 mm, Probe: 230x58 mm. |
Meter: 163x87x32 mm Probe: Not specified. |
Meter with Probe:
465x96x64 mm |
Meter: 240x108x50 mm Probe: 317x58 mm |
Meter: 216x72x37 mm Probe: 320x50 mm |
|
Battery operating time |
100 Hrs. |
20 Hrs. |
8-15 Hrs. |
20 Hrs. |
30 Hrs. |
|
Weight |
0.33 kg. |
0.64 kg. |
0.45 kg. |
1.2 kg. |
Meter only 0.35 kg. |
|
Price (estimates) |
$2,000 |
$5000-6,000 |
$7,000-9,000 |
$7,000-9,000 |
$4,000-5,000 |