Vivax Metrotech 4.04.000170, Руководство пользователя

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2 vLoc3 RTK-Pro Receiver
5. The receiver will scan all available frequencies and display a progress bar, and the list of frequencies assessed will be
displayed. The frequency under test is shown on the top line.
Frequency: 8.19kHz
491Hz
512Hz 80 dB
74 dB
6. A numerical value ranging from 0dB to 140dB will be presented next to the frequency list, with 140dB being the least
possible interference detected and 0db with the largest amount of possible interference.
7. The results are ranked from the least interference possible at the top to the largest amount of most possible interference at
the bottom.
8. In this case, the higher the dB number (80dB), the less interference has been detected by the receiver.
Frequency: 491Hz
491Hz
512Hz
8.19kHz
32.8kHz
65.5kHz
131kHz
200kHz
80 dB
74 dB
62 dB
56 dB
49 dB
43 dB
37 dB
* Note - although frequency results appear to have less interference, it still does not make it the best
choice to locate certain utilities. These include but are not limited to a conductor, current output,
resistance, and signal bleed over adjacent utilities.
2.7 Setting up the vLoc3 RTK-Pro mapping functions
Introduction
This section describes the set-up and operation of the vLoc3 RTK-Pro in terms of the GNSS mapping capabilities.
The equipment is designed to provide cm accuracy. However, on its own, GNSS is not capable of providing the cm accuracy
required for many survey applications. GNSS needs to be fine-tuned using stationary base stations that provide correction
figures for all measurements. The real-time Kinematic (RTK) corrections are supplied from a central server (Trip Caster) via the
cellular phone network and the Cloud.