Ramsey Electronics COM 3 - General Information; Introduction to the COM 3

ON 1
SECTI
GENERAL
INFORMATION
The
Com
3
is
a
lightweight,
compact
Service
monitor
for
testing
AM
and
FM
transceivers.
The
internal
battery,
which
is
a
standard
feature
of
the
Com
3,
combin
ed
with
the
optional
carrying
case
and
low
weight
(13
lbs),
make
it
ideal
for
field
use.
Utilizing
specially
designed
micro
Powered
oven
circuits,
warm
-up
time
is
minimal,
providing
maximum
use
of
the
battery.
tone
can
be
generated.
RF
power
is
continu
variable
in
five
ranges
from
0.1
uv
to
10,000
uv.
The
display
is
a
seven
digit
LED
type
which
will
display
frequenci
i
i
audio
ahd
RF
frequency
counter.
Deviation
and
frequency
error
are
displayed
on
a
20
segment
LED
bargraph,
which
is
easily
visible
from
across
the
shop.
|
An
internal
RF
relay
switches
transmitted
power
greater
than
500
mW
to
a
rear
panel
mounted
BNC
connector.
This
protects
the
Com
3
from
accidental
keying
and
allows
easy
connection
of
an
antenna,
power
meter,
or
dummy
load.
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