Installation guide

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Antenna Guide for ISR and CGR with Verizon Wireless 4G LTE
LTE Site Survey via SMS: Overview
4G wireless and the accompanying network devices provide flexibility and ease of
placement for sites, kiosks and machines needing connectivity. However, radio signal
quality and strength can differ, even with antennas being positioned differently by a few
feet. Adjusting the placement of antennas can make a significant difference in the
performance obtained using the 4G LTE network.
The document “LTE Antenna Installation, Positioning and Selection Guide for ISR and CGR
Using Verizon 4G LTE” can provide guidance for antenna placement and selection.
www.cisco.com/c/dam/en/us/td/docs/routers/access/interfaces/software/deployment/guide/guide_100413.pdf
However, a simple method of obtaining LTE radio signal power and quality measurements
would ease the task of finding the optimum placement of antennas.
This function of the ISR app provides a way to receive radio signal measurements quickly,
via an SMS text message, thus allowing immediate feedback and the ability to find the
optimum spots to place antennas. There is no need for Web or command line access to the
ISR. A smart phone is all that is needed.
This ISR sample application (referred to hereafter as the “app”) uses EEM to respond to text
message requests for a radio site survey. The app is a tcl script that runs on the ISR.
This sample script can be modified to do more or different functions, however other EEM
scripts available show examples of some of these methods. Please see the Router Best
Practices for LTE Guide “Real World Examples” section for links to additional EEM scripts.
www.cisco.com/c/dam/en/us/td/docs/routers/access/interfaces/software/deployment/g
uide/lte_access_011414.pdf