CHAPTER I
INTRODUCTION
l-l. GENERAL DESCRIPTION.
an
MC-4
Mobile Console, and a TR-4C VHF
Modification Kit.
The TR-4C is a 300 Watt HF single sideband trans-
ceiver which covers the 80 through 10 meter
amateur bands. AM and CW modes are also included.
The TR--4C requires either an R. L. Drake AC-4,
120 V AC power supply, or an R. L. Drake DC-4,
12 V DC power supply. The TR-4C features a
high-stability linear permeability tuned VFO and
two 8 pole crystal lattice filters for sideband selec-
tion. Available accessories include an RV-4C
Remote VFO, a matching MS-4 Speaker, an FF-1
Fixed Frequency Adapter, a 34-PNB Noise Blanker,
1 - 2 . M A N U A L C O V E R A G E .
This manual provides sufficient information for
operation of the TR-4C Transceiver by a licensed
operator and for repair and maintenance by an ex-
perienced electronics technician. Chapter II provides
installation instructions and illustrates interconnec-
tion with accessories. Chapter III describes operation
procedures. Chapter IV presents theory of operation
supported by a block diagram. Chapter V provides
maintenance instructions and parts ordering infor-
mation.
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