DRAKE MN2700 manuales

Drake MN2700 Manual de usuario (81 paginas)

Marca: Drake | Categoria: Amplificadores de audio | Tamaño: 5.07 MB |

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Antenna Tuners

1

(Antenna Couplers)

1

What is an Antenna Tuner?

2

Basics: Correct or Incorrect?

3

6/1/2011 Larry Benko, W0QE 4

4

6/1/2011 Larry Benko, W0QE 5

5

6/1/2011 Larry Benko, W0QE 6

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6/1/2011 Larry Benko, W0QE 7

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6/1/2011 Larry Benko, W0QE 8

8

Choices?

9

What do you really want/need?

10

Matching Network Components

11

DIY Coupler

12

Types of Tuners

13

Tying it all together

14

Voltages and Currents

16

Irms(max)

17

SWR Power Vpk(max)

17

“Small” Antenna Examples

19

What is the Smith Chart

20

Smith Chart Regions

21

6/1/2011 Larry Benko, W0QE 22

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Sample Design Goals

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Low Pass “L” Network

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Type “A”

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Type “B”

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Low Pass “L” Network Results

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High Pass “L” Network

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Type “C”

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Type “D”

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High Pass “L” Network Results

29

Adding a 3

30

Component

30

Low Pass “Pi” Network

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– Still good matching range

33

AntennaTransmitter

33

0.2-20uH

33

High Pass “Tee” Network

37

High Pass “Tee”

38

Fixed “L” High Pass

45

“Tee” Network

45

Both had minimal to moderate

48

Other Network Topologies

49

High Pass Differential

50

The End!

56

Other Topics

57

Does a Full Sized

58

Dipole Need

58

Matching?

58

Dipole Matching

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6/1/2011 Larry Benko, W0QE 60

60

6/1/2011 Larry Benko, W0QE 61

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6/1/2011 Larry Benko, W0QE 62

62

6/1/2011 Larry Benko, W0QE 63

63

– #12 wire up 40’

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– No feedline

64

– Pink dot = 1.8MHz

64

– 50’ of .66VF 50Ω

65

– 50’ of 600Ω lossless

66

V(Vin1) under I(R1)

67

V(Vout2) under I(R2)

67

No further

68

Smith Chart

70

Capacitor

71

Inductor

72

10MHz = Green

75

20MHz = Red

75

30MHz = Blue

75

2:1 Turns

77

Transformer

77

Surge Impedance Again

81

Drake MN2700 Especificaciones (17 paginas)

Marca: Drake | Categoria: Amplificadores de audio | Tamaño: 3.94 MB |

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4

5

MN2700 Matching Network

6

INTRODUCTION

7

SPECIFICATIONS

8

~H,E,,,AL

9

Rear Panel Connections

10

CHAPTER

11

OPERATION

11

.'.*

12

MAINTENANCE

15

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