SAS-510-2 Log Periodic Antenna Data

1 Meter | 3 Meter | 10 Meter
Antenna Page | VSWR Graph | AF Graph

1 Meter Antenna Factor
Frequency (MHz) AF (dB/m) Gain (dBi) Gain (Numeric)
290
15.6
3.9
2.47
300
16.0
3.8
2.40
325
15.9
4.6
2.88
350
16.1
5.0
3.16
375
16.4
5.3
3.39
400
16.6
5.7
3.69
425
17.3
5.5
3.54
450
17.5
5.8
3.83
475
18.2
5.6
3.62
500
18.2
6.0
4.02
525
18.6
6.1
4.05
550
19.9
5.1
3.27
575
19.9
5.5
3.57
600
19.8
6.0
3.99
625
19.8
6.4
4.37
650
20.3
6.2
4.18
675
20.5
6.3
4.30
700
20.3
6.9
4.89
725
20.7
6.8
4.78
750
21.1
6.6
4.61
775
21.3
6.7
4.66
800
21.3
7.0
5.07
825
22.0
6.5
4.51
850
22.2
6.6
4.56
875
22.5
6.6
4.54
900
22.8
6.5
4.51
925
23.0
6.6
4.53
950
23.4
6.4
4.37
975
24.0
6.0
4.02
1000
24.0
6.2
4.18
1100
25.2
5.9
3.90
1200
26.1
5.8
3.78
1300
27.1
5.5
3.52
1400
27.5
5.7
3.71
1500
28.0
5.8
3.79
1600
28.5
5.8
3.83
1700
28.8
6.1
4.05
1800
28.8
6.5
4.49
1900
29.3
6.5
4.50
2000
30.2
6.1
4.03


CALCULATIONS

EMISSIONS TESTING

Individual calibration data for the log periodic antenna is supplied at appropriate distances (3, and 10 meter) to comply with various emissions test requirements. For emissions measurements, add antenna factor plus cable loss to receiver reading in dBuV to convert to field strength in dBuV/meter.

FS = Field Strength in dBuV/m

SA = Spectrum Analyzer or Receiver voltage reading

AF = Antenna Correction Factor

CL = Cable Loss in dB





IMMUNITY TESTING

For Immunity measurements, the generated electric field strength can be calculated by:

FS = Approximate Field Strength in (V/m)

P = Power in watts

g = Numeric Gain

d = Distance in meters
 
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