{"id":3818,"date":"2011-12-28T11:43:28","date_gmt":"2011-12-28T18:43:28","guid":{"rendered":"https:\/\/emrabc.ca\/?page_id=3818"},"modified":"2015-04-16T12:43:51","modified_gmt":"2015-04-16T19:43:51","slug":"three-antennas-in-smart-meter","status":"publish","type":"page","link":"https:\/\/emrabc.ca\/?page_id=3818","title":{"rendered":"3 Antennas in Smart Meter"},"content":{"rendered":"

An Investigation of Radiofrequency Fields<\/strong><\/p>\n

Associated with the Itron Smart Meter<\/strong><\/p>\n

http:\/\/heartland.org\/sites\/default\/files\/sites\/all\/modules\/custom\/heartland_migration\/files\/pdfs\/29676.pdf<\/a><\/p>\n

page 34<\/p>\n

“For the Itron equipment that was the subject of this\u00a0investigation, Two separate transmitters are contained in<\/strong><\/p>\n

the end-point meters.<\/strong> The wireless mesh network can\u00a0be referred to as an RF LAN (radio frequency local area\u00a0network).<\/p>\n

The Itron RF LAN operates in the 902-928\u00a0MHz license free band using spread spectrum<\/p>\n

transmitting technology. A second, separate transmitter\u00a0that operates in the 2.4 GHz frequency range (2405\u00a0MHz to 2483 MHz) uses direct sequence spread\u00a0spectrum technology that is referred to as a Zigbee radio<\/span><\/strong>.<\/p>\n

This Second transmitter<\/strong> is included for use with\u00a0Home Area Networks (HANs) allowing customers, for\u00a0example, to control certain electric appliances or systems\u00a0within the home. When fully implemented, the\u00a0customers will be able to connect wirelessly with the\u00a0HAN radio and set times at which various appliances\u00a0and\/or electrical systems may operate, thereby taking\u00a0advantage of those times during which electricity rates\u00a0are lowest. \u00a0\u00a0The RF LAN provides data communications among\u00a0the various end-point meters and an associated cell relay\u00a0meter.<\/p>\n

Cell relays are end-point meters<\/strong> that contain yet\u00a0a Third transceiver<\/span> that is designed for wireless <\/strong>connection to the cellular WWAN<\/strong>,<\/p>\n

i.e., relaying of the\u00a0data received from the various end-point meters over a\u00a0private connection to the electric utility company.<\/p>\n

The\u00a0transceivers use the same frequency bands used by cell <\/strong>phones<\/strong>.<\/p>\n

Two different frequency bands are used by\u00a0these cell-relay transceivers, either the 850 MHz band\u00a0or the 1900 MHz band.<\/p>\n

7 Figure 2-3 shows a cell relay\u00a0with the flexible dual band antenna located on the\u00a0inside surface of the meter cover.”<\/p>\n

\"\"<\/a><\/p>\n

\"\"<\/a><\/h2>\n

ZigBee Antennas<\/strong><\/h2>\n

\"\"<\/strong><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

An Investigation of Radiofrequency Fields Associated with the Itron Smart Meter http:\/\/heartland.org\/sites\/default\/files\/sites\/all\/modules\/custom\/heartland_migration\/files\/pdfs\/29676.pdf page 34 “For the Itron equipment that was the subject of this\u00a0investigation, Two separate transmitters are contained in the end-point meters. The wireless mesh network can\u00a0be referred to as an RF LAN (radio frequency local area\u00a0network). The Itron RF LAN operates in the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":6228,"menu_order":3,"comment_status":"open","ping_status":"open","template":"page-nosidebar.php","meta":{"footnotes":""},"class_list":["post-3818","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/emrabc.ca\/index.php?rest_route=\/wp\/v2\/pages\/3818","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/emrabc.ca\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/emrabc.ca\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/emrabc.ca\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/emrabc.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3818"}],"version-history":[{"count":15,"href":"https:\/\/emrabc.ca\/index.php?rest_route=\/wp\/v2\/pages\/3818\/revisions"}],"predecessor-version":[{"id":6234,"href":"https:\/\/emrabc.ca\/index.php?rest_route=\/wp\/v2\/pages\/3818\/revisions\/6234"}],"up":[{"embeddable":true,"href":"https:\/\/emrabc.ca\/index.php?rest_route=\/wp\/v2\/pages\/6228"}],"wp:attachment":[{"href":"https:\/\/emrabc.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3818"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}