Table Of Contents - Ramsey Electronics FX Series Manual

TABLE OF CONTENTS:

The Ramsey FX-223 Transceiver Manual is organized into three sections:
General Reference Information, Kit Assembly Phase 1, and Kit Assembly
Phase 2.
FX-223 GENERAL REFERENCE INFORMATION
Notice Regarding FX-223 Frequency Coverage ................................4
FX-223 Technical Specifications ........................................................5
Introduction to Transceiver Kit Assembly ...........................................6
A Message to Ham Radio Beginners .................................................8
DC Power Supply Considerations ......................................................9
Enclosure and Hardware Considerations .........................................10
Ramsey CFX Transceiver Enclosure Kit ..........................................12
Guide to PC-board I/O Connections.................................................14
Microphone & Speaker Information ..................................................16
A Few Antenna Considerations ........................................................16
VHF Packet Data Operation .............................................................17
FX-series Transceiver Block Diagram ..............................................18
FX-223 Circuit Overview...................................................................19
Quick-Reference Programming Guide .............................................27
FX-223 Programming Worksheet .....................................................31
Using Computer BASIC as a Programming Aid ...............................32
How to Activate an Auxiliary (non-Standard) Offset .........................35
Programming "Minus" Offsets...........................................................36
FX-223 Programming Summary.......................................................38
Basics of Externally-Controlled Frequency Switching ......................38
FX-series GLOSSARY of Terms ......................................................40
Troubleshooting Guide .....................................................................46
Note on Replacement Parts..............................................................49
RAMSEY ELECTRONICS FX Kit Warranty Terms ..........................51
FX-223 Master Component Index ....................................................53
KIT ASSEMBLY: PHASE 1
Assembly and Explanation of Circuit Stages A through F
(including Kit Parts List, kit-building tips and preliminary receiver & VCO
test) ............................................................................................60 - 86
KIT ASSEMBLY: PHASE 2
Assembly and Explanation of Circuit Stages G through TX (includes all
Frequency Programming directions plus alignment and transmitter tuneup.)
................................................................................................ 87 - 125
Optional Helical Filter Installation ...................................................126
Technicians Notes ..........................................................................127