DRAKE R-4A Spezifikationen PDF herunterladen (Seite 2)

TABLE OF CONTENTS

General Specifications

3

I General Description

5

II Installation Instructions

A.

Unpacking

6

B.

Location

6

C. Power Requirements

6

D. Antenna Requirements

6

E.

Speaker Requirements

7

F.

Anti-VOX

7

G. Muting

7

III Control Functions

9

A.

Front

9

B.

Rear Jacks

11

c.

Side Controls

&

Jacks

12

IV Operation

A.

B.

c.

D.

E.

F.

G.

H.

I.

J.

Preliminary Control Settings

Single Sideband or Double Sideband Suppressed

Carrier Reception

C. W. Reception

AM Reception

RTTY Reception

Adjusting Dial Calibration

Noise Blanker Operation

Operation of Notch Control

Accessory Frequency Coverage

Fixed Frequency Operation

13

13

13

14

14

15

15

16

17

20

V Theory

of Operation

21

A*

R. F. Amplifier

21

B.

First Mixer and Premixer System

21

c.Second Converter

22

D.

50

KC

I. F. System

22

E. Detector Systems

22

F. Audio Output

24

G.AVC System

24

H.

S Meter

24

I.

Noise Blanker

25

J.

Crystal Calibrator

25

K.

Power Supply

25

6

13

-l-

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