EasyManua.ls Logo

DRAKE R-4B User Manual

DRAKE R-4B
43 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
Question and Answer IconNeed help?

Do you have a question about the DRAKE R-4B and is the answer not in the manual?

DRAKE R-4B Specifications

General IconGeneral
TypeCommunications Receiver
Image Rejection80 dB
ModesAM, CW, SSB
Sensitivity0.5 µV for 10 dB S+N/N
Power Supply50-60 Hz
IF Frequencies5.645 MHz, 50 kHz
Audio Output2.5 W into 8 Ω

Summary

Control Functions Overview

Front Panel Controls and Functions

Detailed description of all front panel knobs, switches, and dials.

Side Panel Controls

Explanation of controls located on the side of the receiver.

Rear Panel Connections

Description of all rear panel jacks and their functions.

Operating Procedures

Basic Control Settings for Operation

Initial control settings for general receiver operation.

SSB/DSB Suppressed Carrier Reception

Steps for receiving SSB and DSB signals.

CW Reception Procedure

Recommended settings for receiving CW signals.

AM Reception Procedure

Recommended settings for receiving AM signals.

Servicing and Maintenance

Troubleshooting Tips

General advice and methods for diagnosing receiver problems.

Alignment Instructions

Overview of the alignment process and required equipment.

25 KHz Calibrator Alignment

Procedure for aligning the 25 KHz calibrator.

50 KHz Oscillator Alignment

Procedure for aligning the 50 KHz oscillator.

50 KHz I.F. Alignment

Procedure for aligning the 50 KHz intermediate frequency stages.

Crystal Filter Alignment

Steps to align the crystal filter and transformer.

Related product manuals