
91
Sidekick
®
Plus Test Set
Noise Spectrum Analyzer
In the Wideband Noise and Longitudinal Noise
measurements, press
F1 Spectrum
to display the
frequency distribution of the measured noise.
Use the
*
(
Marker)
,
1 (Zoom Out)
,
3 (Zoom In)
, and
9 (Save)
keys in the spectrum graph to analyze and
save the noise spectrum graph.
Press
F1 Spectrum
again to return to the digital meter.
Reference Tone
Wideband Reference Tone is a feature added to the
Tones menu. To enter the TOOLS MENU, turn the knob
to AUTOTEST/ TOOLS, and then press the
Fn
key.
With the Wideband feature, the “Loss Ref Tone” trans-
mits a reference tone frequency up to 4.4 MHz.
Use the keypad arrow keys (
2
and
8
) until the imped-
ance parameter is highlighted. Press the right (
6
) key
until the desired line impedance is highlighted, or the
keypad number key of the desired type.
Voiceband Tones
“600 Ω” will send a reference tone on a frequency
between 200 Hz and 20 kHz, with 600 Ω being the line
impedance.
Wideband Tones
“135 Ω”, “100 Ω”, and “75 Ω” impedance selec-
tions will send a reference tone on a user-selectable
frequency between 20 kHz and 4.4 MHz.