Shielding Test Mode - Arcom QAM Snare Snoop User Manual

There are four possible channel codes for every detection channels used by Arcom,
intended to provide flexibility in overbuild situations. Table 1 below illustrates those
frequencies. To select the desired code, simply select Code# and use the Up and Down
arrows to select the desired frequency code.
As illustrated above, the Pilot Carriers are typically offset
-30 dBc with respect to the channel level. However, if the
pilot carriers are above or below -30 dBc then the Snoop
Pilot Level requires adjustment so the detected leakage levels
are accurate. To adjust the Pilot Level offset, select the "Pilot
Lev, dB:" options and use the right and left arrows and the
enter button to set the offset accordingly.

Shielding Test mode

To quickly and easily troubleshoot difficult ingress problems in the home, Snoop is
able to operate as a Shielding Efficiency (SE) detector. Operation in this mode requires
the use of a QAM Snare Pilot transmitter device.
The transmitter is connected at the grounding block in place of the home coax feed
(the home is disconnected from the cable network when the transmitter is used) or at
the tap. The transmitter places a high level, easy to find signal at the frequency which
is programmed into the transmitter when setting up. The process of how to configure
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Table 1: Code # vs Pilot Carrier Frequencies