without their temperature rising to the dangerous level. For this reason, the
LED should not be considered as a “full charge” indicator as it may or may not
extinguish when the batteries are fully charged. The batteries are fully charged
any time their temperature rises substantially above ambient. How long this
takes depends on how much charge has been taken from the batteries and
how much time has passed since the last charge. If the green LED goes out,
the batteries are definitely charged. If the green LED is on and the batteries are
cool, they are still charging. If the green LED is on and the batteries are very
warm, they are fully charged and you should terminate the charge by
unplugging the charger. You should not permit the charge to continue for
more than 12 hours under any circumstances. The batteries need to be
recharged when the “Low Battery” LED is blinking while the FX3 is in use. If this
warning is ignored, the FX3 will abruptly shut off and display “LO” on the LCD
display. Battery run time is directly related to how loud you operate the FX3.
Using both speakers at the same time rather than only the most appropriate
one will have a negative impact on run time. With one speaker playing, expect
6 to 15 hours of run time, depending on the loudness setting. With both
speakers playing, expect 3 to 10 hours. Remember that very loud volumes are
rarely needed, as animals hear much better than we do.
“AUX” JACK FUNCTION
The FX3 is equipped with an auxiliary jack labeled “AUX”. The purpose of this
jack is to allow for the connection of certain external devices, such as the
FOXPRO
®
Jack-in-the-Box Decoy, and to be able to turn these on and off with
the TX5-LR remote control transmitter. However, there are some strict electrical
limits involved with this jack. If these limits are exceeded, damage to your FX3
will result. This damage is not covered by the warranty.
The electrically inclined will want to know that the jack is connected to the drain
of an internal Field Effect Transistor with a maximum current rating of 2
Amperes. The “tip” polarity of the 3.5mm jack is positive, while the sleeve is
negative. If the external device is connected with the polarity reversed, an
internal protection diode within the FET will conduct, causing the device to stay
on constantly. The maximum voltage applied to this jack must never exceed 15
volts. Typical uses for this jack would be to control the FOXPRO
®
Jack-in-the-
Box Decoy, or to start and stop a video recorder. Instructions on connecting
various devices to the “AUX” jack are beyond the scope of this manual. You are
urged to seek help from a knowledgeable professional before connecting any
unapproved device to this jack. Remember that damage to your FX3 caused by
improper use of the “AUX” jack is not covered by the warranty, nor will
FOXPRO
®
be liable for damage to any device connected to this jack. Typical
uses for this jack would be to control the FOXPRO
®
Jack-in-the-Box Decoy, or
to start and stop a video recorder.