CRYSTAL CONTROLLED �PHASE-LOCKED LOOP� SYNTHESIZING SYSTEM

This transceiver uses a frequency synthesizing system which employs two crystals and the PLL (phase locked loop) circuit to produce 40 transmitting and 40 receiving channels.

The accompanying chart shows the operating mode.

VCO FREQUENCIES AND MIXING

CH.

TRANSMIT

CHANNEL
FREQUENCY

RECEIVE

VCO

CRYSTAL OSC

VCO

FIRST� IF

CRYSTAL� OSC

SECOND IF

1

16.543

10.422

26.965

16.27

10.695

10.24

455

2

16.553

26.975

16.28

3

16.563

26.985

16.29

4

16.583

27.005

16.31

5

16.593

27.015

16.32

6

16.603

27.025

16.33

7

16.613

27.035

16.34

8

16.633

27.055

16.36

9

16.643

27.065

16.37

10

16.653

27.075

16.38

11

16.663

27.085

16.39

12

16.683

27.105

16.41

13

16.693

27.115

16.42

14

16.703

27.125

16.43

15

16.713

27.135

16.44

16

16.733

27.155

16.46

17

16.743

27.165

16.47

18

16.753

27.175

16.48

19

16.763

27.185

16.49

20

16.783

27.205

16.51

21

16.793

27.215

16.52

22

16.803

27.2 5

16.53

23

16.833

27.255

16.56

24

16.813

27.235

16.54

25

16.823

27.245

16.55

26

16.843

27.265

16.57

27

16.853

27.275

16.58

28

16.863

27.285

16.59

29

16.873

27.295

16.60

30

16.883

27.305

16.61

31

16.893

27.315

16.62

32

16.903

27.325

16.63

33

16.913

27.335

16.64

34

16.923

27.345

16.65

35

16.933

27.355

16.66

36

16.943

27.365

16.67

37

16.953

27.375

16.68

38

16.963

27.385

16.69

39

16.973

27.395

16.70

40

16.983

27.405

16.71

IN MHz


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