Installation Guide

Table Of Contents

FinMInstallationGuide Release4.5.25 2‐47

TMUAntennas SiteInstallation



Figure2‐87:“Shark‐Fin”antenna‐bottomandtopviews

Notethefollowing:

• TheantennasshouldbemountedasclosetotheTMUaspossible.

• Trytominimizeobstructionsbetweentheante nnasandthefrontofthetrainsuchas

air‐conditionerunits,electronicroutenumberdisplayboxesandthelike.

• MountAntenna1andAntenna2ontheedgeofthelocomotiveata45

angle,as

showninFigure 2‐88.AlsoseeTMU‐TBSan tennaalternativeorientationoptionson

page 2‐47forotherpossibilities.

• MountAntenna3(center)ata90

angle(directlyup)asshowninFigure 2‐88.

• ConnecttheantennaportsoftheTMUtotheantennasasshowninFigure 2‐90.

Figure2‐88:TMUantennamountingconfigurationonroof

TMU‐TBSantennaalternativeorientationoptions

AlthoughFigure 2‐88,"TMUantennamountingconfigurationonroof"showsthemost

commonmethodofmountingtheTMUantennas,thereareotheroptions,andtheseare

shownhere: