SAS-510-2 Log Periodic Antenna Data

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

10 Meter Antenna Factor
Frequency (MHz) AF (dB/m) Gain (dBi) Gain (Numeric)
290
13.1
6.4
4.40
300
13.2
6.6
4.55
325
13.9
6.6
4.52
350
14.5
6.7
4.63
375
15.1
6.6
4.58
400
15.7
6.6
4.61
425
16.2
6.6
4.57
450
16.4
6.9
4.88
475
16.9
6.9
4.93
500
17.2
7.0
4.98
525
18.2
6.5
4.46
550
18.9
6.1
4.08
575
19.9
5.5
3.55
600
19.1
6.7
4.73
625
19.2
7.0
4.98
650
19.6
6.9
4.86
675
19.7
7.1
5.12
700
20.1
7.1
5.10
725
20.2
7.2
5.29
750
20.6
7.2
5.22
775
20.2
7.8
6.07
800
21.1
7.2
5.29
825
21.3
7.2
5.29
850
21.6
7.2
5.28
875
21.7
7.3
5.42
900
21.9
7.4
5.53
925
22.4
7.2
5.23
950
23.0
6.8
4.80
975
23.0
7.0
5.06
1000
23.0
7.3
5.36
1100
24.3
6.8
4.76
1200
24.9
7.0
4.96
1300
25.7
6.8
4.82
1400
26.2
6.9
4.94
1500
27.2
6.6
4.56
1600
27.9
6.5
4.42
1700
28.1
6.7
4.71
1800
28.8
6.6
4.57
1900
29.6
6.3
4.23
2000
31.6
4.7
2.93


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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