Operating Instructions

Table 2- 1: dB Reference

Reading in dB

Voltage Ratio

Power Ratio

 

Reading in dB

Voltage Ratio

Power Ratio

 

 

 

 

 

 

 

0.0

1.000

1.000

 

25.0

17.783

316.228

 

 

 

 

 

 

 

0.1

1.012

1.023

 

26.0

19.953

398.107

 

 

 

 

 

 

 

0.2

1.023

1.047

 

27.0

22.387

501.187

 

 

 

 

 

 

 

0.3

1.035

1.072

 

28.0

25.119

630.957

 

 

 

 

 

 

 

0.4

1.047

1.096

 

29.0

28.184

794.328

 

 

 

 

 

 

 

0.5

1.059

1.122

 

30.0

31.623

1000.000

 

 

 

 

 

 

 

0.6

1.072

1.148

 

31.0

35.481

1258.925

 

 

 

 

 

 

 

0.7

1.084

1.175

 

32.0

39.811

1584.893

 

 

 

 

 

 

 

0.8

1.096

1.202

 

33.0

44.668

1995.262

 

 

 

 

 

 

 

0.9

1.109

1.230

 

34.0

50.119

2511.886

 

 

 

 

 

 

 

1.0

1.122

1.259

 

35.0

56.234

3162.278

 

 

 

 

 

 

 

1.5

1.189

1.413

 

36.0

63.096

3981.072

 

 

 

 

 

 

 

2.0

1.259

1.585

 

37.0

70.795

5011.872

 

 

 

 

 

 

 

2.5

1.334

1.778

 

38.0

79.443

6309.573

 

 

 

 

 

 

 

3.0

1.413

1.995

 

39.0

89.125

7943.282

 

 

 

 

 

 

 

4.0

1.585

2.512

 

40.0

100.000

10000.000

 

 

 

 

 

 

 

5.0

1.778

3.162

 

41.0

112.202

12589.254

 

 

 

 

 

 

 

6.0

1.995

3.981

 

42.0

125.893

15848.932

 

 

 

 

 

 

 

7.0

2.239

5.012

 

43.0

141.254

19952.623

 

 

 

 

 

 

 

8.0

2.512

6.310

 

44.0

158.489

25118.864

 

 

 

 

 

 

 

9.0

2.818

7.943

 

45.0

177.828

31622.777

 

 

 

 

 

 

 

10.0

3.162

10.000

 

46.0

199.526

39810.717

 

 

 

 

 

 

 

11.0

3.548

12.589

 

47.0

223.872

50118.723

 

 

 

 

 

 

 

12.0

3.981

15.849

 

48.0

251.189

63095.734

 

 

 

 

 

 

 

13.0

4.467

19.953

 

49.0

281.838

79432.023

 

 

 

 

 

 

 

14.0

5.012

25.119

 

50.0

316.228

100000.000

 

 

 

 

 

 

 

15.0

5.623

31.623

 

51.0

354.813

125892.541

 

 

 

 

 

 

 

16.0

6.310

39.811

 

52.0

398.107

158489.319

 

 

 

 

 

 

 

17.0

7.079

50.119

 

53.0

446.684

199526.231

 

 

 

 

 

 

 

18.0

7.943

63.096

 

54.0

501.187

251188.643

 

 

 

 

 

 

 

19.0

8.913

79.433

 

55.0

562.341

316227.766

 

 

 

 

 

 

 

20.0

10.000

100.000

 

56.0

630.957

398107.171

 

 

 

 

 

 

 

21.0

11.220

125.893

 

57.0

707.946

501187.234

 

 

 

 

 

 

 

22.0

12.589

158.489

 

58.0

794.328

630957.344

 

 

 

 

 

 

 

23.0

14.125

199.526

 

59.0

891.251

794328.235

 

 

 

 

 

 

 

24.0

15.849

251.189

 

60.0

1000.00

1000000.000

 

 

 

 

 

 

 

2- 8

1705A Spectrum Monitor

Page 47
Image 47
Tektronix 1705A instruction manual Reading in dB Voltage Ratio Power Ratio, Operating Instructions DB Reference