Sony - ICF-SW77
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Modification of Sony ICF SW77 for DRM Software receiver Date 19 11 02 Page 1 of 8 Table of Contents 1 INTRODUCTION 3 1 1 Purpose of this document 3 1 2 Organization of this document 3 2 SYSTEM OVERVIEW 3 3 CHANGE OE 455 KHZ IF EILTER 3 3 1 Schematic 3 3 2 Filter bandwidth 5 3 3 IF Filter types 6 4 CONNECTION OF DRM MINIATURE MIXER UNIT 6 4 1 Power supply 7 4 2 IF CONNECTION 7 Date 19 11 02 Page 2 of 8 1 Introduction 1 1 Purpose of this document This document describes how to modify a Sony ICF SW77 short wave receiver to be able to receive a DRM signal Therefore the DRM Miniature Mixer Unit from Sat Service Schneider is used to mix down the 455 kHz IF of the receiver to a 12 kHz EF This 12 kHz EF is feed to a PC ...Click here to download the manual
Contents
Modification of Sony ICF SW77 for DRM Software receiver Date 19 11 02 Page 1 of 8 Table of Contents 1 INTRODUCTION 3 1 1 Purpose of this document 3 1 2 Organization of this document 3 2 SYSTEM OVERVIEW 3 3 CHANGE OE 455 KHZ IF EILTER 3 3 1 Schematic 3 3 2 Filter bandwidth 5 3 3 IF Filter types 6 4 CONNECTION OF DRM MINIATURE MIXER UNIT 6 4 1 Power supply 7 4 2 IF CONNECTION 7 Date 19 11 02 Page 2 of 8 1 Introduction 1 1 Purpose of this document This document describes how to modify a Sony ICF SW77 short wave receiver to be able to receive a DRM signal Therefore the DRM Miniature Mixer Unit from Sat Service Schneider is used to mix down the 455 kHz IF of the receiver to a 12 kHz EF This 12 kHz EF is feed to a PC ...