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JSD TestPhone AM5xs Operation Manual page 2

Tone amplifier

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Introduction
The JSD TestPhone AM5 Tone Amplifier product provides a means of tracing the
audible signal generated by the TG5 Tone Generator product across a copper cable
network. The product features five (5) sensitivity levels with selectable band-pass
filtering and either contact or inductive pickup of the audible signal which is
amplified and reproduced on the internal loudspeaker or external Headset. Digital
signals [25-250kHz] present on the copper cable network are also identified and
indicated with both audible and visual indicators. The product also features 'qTrace'
technology which allows the individual discrimination and visual indication of up to
four 'qTrace' tones.
Powering `ON` the Probe
The AM5xs is switched `on` by pressing the [ON/OFF SENS+]
button for two (2) seconds, whereupon a BEEP will be
generated, the amplifier is switched on at the maximum
sensitivity level and the 'ON LO BAT' indicator will flash slowly.
Normal Tone Tracing (Audio Indication)
To trace the tone bring the probe tip close to the wire and listen
for the tone being reproduced in the loudspeaker.
Band Pass Filter
To activate the internal band pass filter (attenuating signals
below 800Hz and above 1500Hz) switch `on` the AM5xs by
pressing the [ON/OFF SENS+] button for two (2) seconds and
continue holding the button for a further three (3) seconds (5
seconds in total). Confirmation of the activation will be the 'ON
LO BAT' indicator flashing fast. To deactivate the band pass
filter switch the AM5xs `off`.
`qTrace` Tone Tracing (Visual Indication)
Trace the signal by bringing the probe tip to within 100mm of the
wire and observing the 'qTrace' indicators on the AM5xs. A
maximum of four (4) 'qTrace' tones may be identified.
This function will be particularly useful when used in conjunction
with a number of TG5xs units to identify individual pairs.
Range
The AM5xs will detect a standard tone generated from the
TG5xs at 12 miles and q Trace Tones at up to 15 miles.
Sensitivity
The AM5xs is switched on at maximum sensitivity level. The
sensitivity may be reduced by momentarily touching the [ON/
OFF SENS+] button. There are five levels of sensitivity before
the unit will revert to the highest setting. To prevent distortion,
only use a level adequate to hear the tone.

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