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FT-840
User Manuals: DRAKE FT-840 Ham Radio Transceiver
Manuals and User Guides for DRAKE FT-840 Ham Radio Transceiver. We have
1
DRAKE FT-840 Ham Radio Transceiver manual available for free PDF download: Instruction Manual
DRAKE FT-840 Instruction Manual (42 pages)
Brand:
DRAKE
| Category:
Receiver
| Size: 15 MB
Table of Contents
Table of Contents
3
Introduction
6
General Description
6
Manual Coverage
6
R-4C Receiver
7
Specifications
8
Installation
10
Unpacking
10
Power Requirements
10
Location
10
Mute
11
Anti Vox
11
Injection
11
Speaker
11
Noise Blanker
12
Crystal Frequency Chart
13
Viewing Angle Options
14
Rear Chassis Controls
14
Connecting the TR-4C Transceiver
15
Operation
16
Function
16
Mode
16
Main Tuning Dial
16
Front Panel Controls
17
Xtals
19
Band
19
Preselector
19
Passband Tuning
19
Agc
20
Notch
20
S Meter
20
Phone Jack
20
SSB Reception
21
CW Reception
21
AM Reception
21
RTTY Reception
22
Additional Tuning Ranges
22
Preselector Tuning Ranges
22
AM Selectivity Curves
23
SSB and CW Selectivity Curves
24
Theory of Operation
26
RF Amplifier
26
Premixer
26
First if System
26
AGC Circuit
27
Audio Amplifier
27
Power Supply
27
Crystal Calibrator
27
Block Diagram
28
Maintenance
30
Service Data
30
Cover Remoavl
30
Test Equipment Required
30
50 Khz BFO and if Alignment
31
Oscillator Adjustment
31
Filter Match Adjustment
31
Notch Filter Adjustment
31
S Meter Adjustment
32
Crystal Calibrator Adjustment
32
Resistance Chart
33
Voltage Chart
33
Tube and Semiconductor Complement
34
Drake Amateur Products
40
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