User's Guide
Table Of Contents
- Table of Contents
- 1 - Introduction
- 2 - Safety Guidelines
- 3 - Regulatory Guidelines
- 4 - Product Specifications
- 5 - Features
- 6 - Inside the Meter
- 7 - Inspecting the Site for Anomalies
- 8 - Installing the Meter
- 9 - Testing NIC Communications in the Field
- 10 - Updates and Repairs
- Index
Chapter 5 • Features
A c l a r a R F E l e c t r i c I - 2 1 0 + c U s e r G u i d e 33
• Fringe reception; this occurs when there is a great distance between the
meter and the nearest DCU or hilly terrain between the meter and all DCUs
• Inadequate data collection due to incomplete infrastructure installation
• A large vehicle parked immediately in front of the meter blocking the
communication path to the nearest DCU.
• Occasional RF spillover into the licensed band from other RF sources
(which has not yet been reported to the FCC for investigation)
Sites that experience these problems will require more samples from the field
equipment. The user at the head end should schedule additional surveys (or simply
wait longer if surveys are being run periodically.) It may also help to perform
phase detect surveys at various times during the day. Usually the level of noise in
the distribution network is lower at off peak times of day. Vehicles which block
the meter during off-peak times may be moved out of the way during peak times of
day. It may also be necessary for some units to collect data when the wind is
relatively calm and tree limbs are not slapping the line.