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Hallicrafters SX-111 User Manual

Hallicrafters SX-111
26 pages
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Hallicrafters SX-111 Specifications

General IconGeneral
BrandHallicrafters
ModelSX-111
CategoryReceiver
LanguageEnglish

Summary

Hallicrafters SX-111 Communications Receiver Operating and Service Instructions

Section I General

Receiver Overview and Features

Details the dual conversion superheterodyne receiver's capabilities, bands, and dual sideband reception.

Section II Technical Specifications

Reception and Performance Specifications

Details reception modes, IF frequencies, sensitivity, selectivity, and power requirements.

Frequency Coverage and Outputs

Lists all frequency bands, speaker output, and headphone jack specifications.

Section III Installation

Unpacking, Location, and Antennas

Covers unpacking, proper placement, and connecting various antenna types.

Headphone and Remote Standby Setup

Details headphone usage and configuring the remote receive-standby switch.

Section IV Function of Operating Controls

Gain, Tuning, and Selectivity Controls

Explains RF Gain, Band Selector, Antenna Trimmer, Audio Gain, and Selectivity controls.

AVC, Noise Limiter, and BFO Switches

Describes the functions of the AVC, Noise Limiter, and BFO switches for reception.

Notch Filter and Function Control Modes

Details the "T" Notch Filter operation and the FUNCTION control modes.

Section V Operation

AM and CW Reception Procedures

Step-by-step guides for tuning and operating the receiver for AM and CW signals.

Single Sideband Reception

Instructions for receiving single-sideband signals and selecting the correct sideband.

Using Calibrator, S-Meter, and Frequency Checks

Explains using calibrator, S-meter, and performing BFO, Notch, and Calibrator checks.

Section VI Alignment

Alignment Equipment and Settings

Lists necessary equipment and initial control configurations for alignment.

IF and RF Alignment Procedures

Detailed steps for aligning the IF systems and RF stages for optimal performance.

Section VII Service Data

IF System, Chassis, and Dial Servicing

Covers IF system, chassis removal, tube/lamp replacement, and dial cable restringing.

"S" Meter Adjustments

Details the mechanical and electrical adjustments for the "S" meter.

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