Arcom Digital Quiver XT, Руководство пользователя

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Now click on the device your Quiver is connected to. A Quiver icon will appear:
QR Codes
Electronic maps and the Quiver Navigator application make it easy to locate faults
detected with the use of the Passive CPD, and NTC TDR modes. The Quiver Navigator
application provides pin-point locations of devices on a map based on time based
measurements. Using logistical troubleshooting techniques, the Quiver can easily be
used to locate dominant faults. However, in some cases where multiple passive
devices, and even multiple faults exist, fault location can get complicated.
In the case of the NTC TDR, multiple peaks of reflected signals from multiple
passive devices can make it difficult to select an actual fault between the user and the
next amp. The NTC-TDR will always show the correct Return Loss for the first passive
device. But to accuratly determine the return loss of devices beyond the first passive,
the level of all the peaks beyond the first passive should be recalculated based on the
losses in all devices from the TDR to the distant point of reflection.
For example, if the reflected signal of 23 dB comes from a device installed after two
splitters (with round trip losses of 7 dB in each) then the actual return loss of that
device after recalculation will be 23dB - (2 X 7dB) = 9 dB.
In other words, to corectly interpret the actual return loss of the distant device, the
NTC TDR response must to provide:
1. The identificatin of each peak with possible devices on a map by using time
delay, and
2. A recalculation of each device RL based on level of peak and and the round trip
losses by devices in the path of the probing signal.
Only after that it will be possible for the user in the field to select a distant peak
with bad return loss, which is not an easy task. To solve this problem, a QR code
feature is built into the Quiver XT NTC TDR and CPD radar modes. The QR code is read