TM 11-5805-246-10
1-7. LIST OF ABBREVIATIONS.
This list contains all abbreviations used in this manual.
Abbreviation
Name
alternating current
ac
amplitude modulation
am
beat frequency oscillator
bfo
cw
continuous wave
decibels referenced to one milliwatt
dbm
direct current
dc
duplex
dx
frequency
freq
frequency shift keying
fsk
Hertz
Hz
kHz
kilohertz
km
kilometer
milliampere
ma
mHz
megahertz
narrow frequency shift keying
nsk
orderwire
ow
owr
one way reverisble
pwr
power
radio frequency
rf
radio-teletypewriter
rtty
rt
receiver-transmitter
ssb
single side band
standing wave radio
swr
teletypewriter
tty
vac
volts alternating current
vf
voice frequency
vswr
voltage, standing wave ratio
wpm
words per minute
Section II EQUIPMENT DESCRIPTION
Subject
Page
Para
Equipment Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Capabilities and Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Differences Between Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Equipment Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
1-8. EQUIPMENT CHARACTERISTICS.
The telegraph terminal isused between teletypewriter stations to change dc telegraph pulses
generated from a teletypewriter into voice frequency signals for transmission over voice channels
and changes received voice frequency signals back into telegraph pulses.
1-3
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