Triplett Fox & Hound HotWire – PN: 3388 - Manual (Page 13)

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C) Signal Strength Indicator
The Signal Strength LED is used to indicate the presence of a signal when it may be difficult to hear
the signal coming from the speaker (because of high ambient noise levels). It will glow brighter as the
received signal strength increases. The brightness will be seen to pulsate with the characteristics of the
received signal.
Helpful Hint
The Signal Strength LED responds to any received signal. Any sound normally heard in the speaker will
cause the LED to light. The user will note that the HotWire Hound will “pick up” signals from electrical de-
vices other than the HotWire Fox. Equipment with motors and electronic displays often produce RF noises
that can be heard with the HotWire Hound. The Signal Strength LED can’t differentiate between these sig-
nals…… so if the user is observing just the LED, without being able to hear the speaker, he may mistake
an interfering signal for the target signal. This is where the earphone is handy. By using the earphone, the
user can determine if the signal that the LED is responding to is the target signal.
D) Power Button
This momentary pushbutton turns the unit on. Press and release the button for momentary operation, or
hold the button in for continuous operation.
E) Volume / Sensitivity Control
The Volume / Sensitivity Thumbwheel controls the loudness of the sound from the speaker. Usually, when
initially searching for the target signal, the thumbwheel is set to maximum. At this maximum setting,
electronic noises from electrical wiring or devices may be heard. When the target signal is heard, the user
can track the signal to its source by moving the HotWire Hound in the direction that makes the sound of
the target signal get louder. As the loudness of the target signal increases, the thumbwheel setting can be
reduced, which will reduce the loudness of the other interfering sounds. Repeating this process will lead
the user in the direction of the wire with the target signal on it.
F) Earphone Jack
The earphone jack accepts a standard 1/8” (3.5mm) mini-plug. This type is often used with portable music
playing devices. The earphone may be either a stereo or mono type. When the plug is inserted into the
jack, the speaker is turned off, and the sound can only be heard through the earphone.
To use the earphone, set the Volume / Sensitivity thumbwheel to minimum, plug the earphone into jack,
and press the Power button. Adjust the thumbwheel for a comfortable sound level in the earphone.
Helpful Hint
Setting the Volume / Sensitivity thumbwheel to minimum prior to using the earphone, as previously
described, can often save the user from a jarring experience. Sounds that are not very loud in the speaker,
can be very loud in the earphone. While the HotWire Hound does provide some compensation for this, the
earphone loudness can varying greatly depending on the earphones actually used.