Ten-Tec JUPITER - Page 84

6 GLOSSARY
Many
of
the
definitions
in
this
glossary
practical
here,
we
recommend
consulting
are
specific
to
JUPITER,
and
may
not
Тһе
АВВГ
Handbook
for
Radio
be
strictly
accurate
in
other
contexts.
Amateurs.
For
explanations
in
greater
detail
than
15
adaptive
filter
An
“intelligent”
filter
which
changes
its
characteristics
to
optimize
an
output
property.
AF
(Audio
Frequency)
JUPITER's
volume
control
AGC
(Automatic
Gain
Control)
holds
receiver
output
fairly
constant
with
a
wide
range
of
input
signals.
AGC
hold
time
During
this
period
the
automatic
gain
setting
does
not
change.
ALC
(Automatic
Level
Control)
holds
transmitter
output
constant
with
changing
loads.
algorithm
A
method
of
problem
solution,
especially
in
computer programs.
alternate
action
Example:
push
ON,
then
push
OFF
AM
Amplitude
Modulation
of
an
RF
signal.
AMTOR,
A
digital
mode
that
improves
radioteletype
performance.
AN
(Automatic
Notch)
А
DSP
function
that
removes
steady
tones
from
interfering
with
a
voice
signal.
attenuator
А
device
to
reduce
signal
strength.
balanced
feedline
А
(low-loss)
ungrounded
two-wire
feedline.
BANDWIDTH
(BW)
The
frequency
space
required
(or
allowed)
to
pass
a
signal.
BFO (beat-frequency oscillator) | Converts an IF signal to an audio tone.
break-in
Ability
to
receive
CW
between
transmitted
letters
(or
even
dits).
bug
À
semi-automatic
telegraph
key
that
forms
dits
automatically
and
dahs
manually.
|
built-in
preamplifiers
Included
in
some
microphones
to
increase
output,
|
but
makes
problems
if
not
used
carefully.
codec
A
combined
analog-to-digital
and
digital
to
_
Е
analog
converter
used
with DSPs,
CW
“Continuous-wave”,
formerly
used
to
distinguish
electronic RF signals from older spark signals,
became
synonymous
with
Morse
radiotelegraphy.
(Decibel)
a
logarithmic
unit
of
power
change
related
to
human
hearing.
A usually unintentional electrical bypass of all
current limiting elements in a circuit.
Adjusts the level of modulation in an FM
transmitter,
dead short
deviation control
74269 Second Printing 6-1
JUPITER Model 538
30 August 2001