Seeker HL User’s Guide
Document Num., Rev. 2
May 2018
Page 23
The image displayed to the right indicates detected leakage
values of 174 uV/m at 757.5 MHz and 23 uV/m at 138 MHz. The
bar graph at the bottom of the screen will display the relative
signal level of the detected signal.
Additionally, when the show noise setting is turned off, the tag
icon will be displayed in the upper right corner of the display to
indicated that the leakage detector is receiving the tagged signal
from the Seeker HL Source Transmitter.
RF Signal Measurement Mode
The RF Signal Measurement Mode is the default display mode for leakage testing and is
used to accurately determine the strength of a leak, pinpoint its location, and provide a
leakage value for documentation. Measured RF leakage values can range from 0.1 to 1000
µV/m and are displayed in large, easy-to-read numbers. A bar graph at the bottom of the
display illuminates proportionally to the signal strength of the leak.
Additionally, an audible tone will sound if the measured signal breaks squelch. The signal
breaks squelch when the RF leakage is greater than the squelch level and tag qualifiers are
also met. This tone can be used to help locate the source of the leak and, perhaps more
importantly, the potential source of ingress.
The image displayed to the right represents the leakage detector
measurement mode with no signal detected. Notice how no
values are displayed and the bar graph at the bottom of the
screen remains blank.
Within the leakage detector measurement mode, the antenna
icon in the lower right side of the screen flashes to indicate that
the leakage detector is currently taking measurements.
No Signal Detected
Tagged Signal Detected
(High Frequency)
If the tag icon is not displayed along with the signal level, the
show noise setting is turned on. In this mode, the signal levels
that are displayed will also include non-tagged noise that is
received by the leakage detector.
Untagged Signal Detected