The Federal Model PA300 (figure 1-1) is a
The Federal Model PA300 (figure 1-1) is a
precision built, efficient and economical, full-fea-
precision built, efficient and economical, full-fea-
tured electronic siren of advanced design. It provides
tured electronic siren of advanced design. It provides
wail, yelp and hi-lo siren tones, as
wail, yelp and hi-lo siren tones, as well as the Tap II
well as the Tap II
feature, public address (PA), radio rebroadcast and
feature, public address (PA), radio rebroadcast and
an air horn sound.
an air horn sound.
The siren may be installed in
The siren may be installed in positive or nega-
positive or nega-
tive ground vehicles with 12-volt electrical systems.
tive ground vehicles with 12-volt electrical systems.
It is protected against failure modes (including re-
It is protected against failure modes (including re-
versed polarity) by
versed polarity) by a fuse that is replaceable without
a fuse that is replaceable without
tools. No components protrude from the bottom of the
tools. No components protrude from the bottom of the
siren to interfere with mounting arrangements.
siren to interfere with mounting arrangements.
A noise-cancelling microphone is
A noise-cancelling microphone is wired-in to
wired-in to
prevent loss or theft. It provides high quality voice
prevent loss or theft. It provides high quality voice
SECTION I
SECTION I
GENERAL DESCRIPTION
GENERAL DESCRIPTION
Figure
Figure 1-1. Model
1-1. Model PA300*
PA300* Electronic
Electronic Siren.
Siren.
reproduction without feedback “squeal”. The micro-
reproduction without feedback “squeal”. The micro-
phone push-to-talk switch overrides any siren signal
phone push-to-talk switch overrides any siren signal
for instant PA use. PA and radio volume are adjust-
for instant PA use. PA and radio volume are adjust-
able by means of a front
able by means of a front panel GAIN control. Radio
panel GAIN control. Radio
inter-connect wires are built-in. No additional cables
inter-connect wires are built-in. No additional cables
are required.
are required.
The Model PA300's 100-watt output is designed
The Model PA300's 100-watt output is designed
to drive a single high power speaker.
to drive a single high power speaker.
The Tap II feature allows the driver to change
The Tap II feature allows the driver to change
the siren sound from wail to yelp
the siren sound from wail to yelp (or vice-versa) via
(or vice-versa) via
the vehicle's horn ring. Tap II provides especially
the vehicle's horn ring. Tap II provides especially
effective traffic clearing capability. In addition to Tap
effective traffic clearing capability. In addition to Tap
II, additional alternate sounds can be activated in
II, additional alternate sounds can be activated in
two other selector switch positions by depressing and
two other selector switch positions by depressing and
holding the horn ring for as
holding the horn ring for as long as the alternate
long as the alternate
sound is desired. The charts in Section IV of
sound is desired. The charts in Section IV of this
this
manual illustrate the operation of these features
manual illustrate the operation of these features
more fully.
more fully.
Other special features of the Model PA300
Other special features of the Model PA300
include:
include:
•
• High deg
High degree of reliabi
ree of reliability is achieve
lity is achieved
d
through the use of integrated circuits
through the use of integrated circuits
and silicon output transistors.
and silicon output transistors.
•
• Contr
Control panel is illumina
ol panel is illuminated with
ted with
non-glare lighting.
non-glare lighting.
•
• Newly
Newly designed p
designed printed circuit
rinted circuit board
board
provides improved performance and
provides improved performance and
durability under a wide range of
durability under a wide range of
environmental conditions.
environmental conditions.
-1-
-1-
Содержание PA300 Series 690009
Страница 16: ...Figure 6 1 Chassis Figure 6 1 Chassis Removal Removal Figure 6 2 Internal View Figure 6 2 Internal View 14 14...
Страница 18: ...F F i i g g u u r r e e 6 6 4 4 S S c c h h e e m m a a t t i i c c D D i i a a g g r r a a m m 16 16...
Страница 20: ...Printed in U S A Printed in U S A 255A198M 255A198M REV M 901 REV M 901...