Passive Line Tracing; Passive Power; Passive Radio Frequency Broadband - RIDGID SeekTech SR-20 Operator's Manual

Passive Line Tracing

CAUTION
Due to the nature of Passive Line Tracing, measured
depth may not be accurate. Whenever possible, per-
form an Active Line Trace to confirm your Passive
Line Trace results.
Passive Line Tracing involves tracing signal energy from
nearby sources such as AC power lines, radio and TV
broadcasting signals, and electrical devices that have
been coupled onto buried utilities� Passive Line Tracing
does not require a transmitter�
The SR‑24 has two types of Passive Line Tracing fre‑
quencies: Power Frequencies and Radio Frequencies,
which includes OmniSeek
OmniSeek is a SeekTech exclusive frequency setting
that searches power and radio frequencies simultane‑
ously� By default, all Passive Line Tracing frequencies
are active in the Main Menu�
Keep the following in mind when performing a Passive
Line Trace:
• Use the best frequency range or band for the target
line type�
• Use an orderly and thorough search pattern to cover
the area of interest�
• Use the on screen display elements and audio cues
just as you would when performing an Active Line
Trace�
Note: Refer to the Setting the Frequency section for in-
structions on how to set the different frequencies.
22 – English
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Passive Power

Power Frequencies are used to locate signals from
AC power lines� In addition to 50 Hz and 60 Hz power
frequencies, the SR‑24 also has an exclusive broadband
power frequency range that covers all frequencies below
4 kHz�

Passive Radio Frequency Broadband

The SR‑24 has two Radio Frequency
and High) as well as the SeekTech exclusive feature,
OmniSeek , which searches three passive frequen‑
cy bandwidths simultaneously�
• Low 4 kHz – 15 kHz
• High 15 kHz – 35 kHz
• OmniSeek
• < 4 kHz
• 4 kHz – 15 kHz
• > 15 kHz
With a broadband signal type, the SR‑24 displays posi‑
tional information for the strongest source in the given
frequency range�
ranges (Low