Specifications

Section-2 Installation
October 17, 2013
2‐12
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2.9.6 RFSamplesConnection
ConnecttheRFsamplecablesrequiredforpowermeteringandRTAC.
• RFforwardmeteringsample
• RFreversemeteringsample
• RTACPAforwardoutputsample (pre‐filter)
• RTACHPFforwardoutputsample(post‐filter)
Note
The RTAC sample (pre and post filter) should have a -5 dBm (nominal) level at the LPU inputs.
DependingonthedegreeofrackintegrationprovidedbyHarris,someorallofthesesamplesmayalreadybe
connectedwhenthetransmitterarrivesonsite.Cablesforsamplesnotinstalledinthefactoryarenotprovidedand
mustbefabricatedonsitetotherequiredlength.
RefertoWi
ringDiagram,UAXTransmitterforthecorrecttransmitterconfiguration,couplerportvalues,andthe
attenuatorvalues(seetablesonwiringdiagram).Theattenuatorpadsarefurnishedinthetransmitteraccessories
kitandshouldbeinstalledontheproperdirectionalcouplersampleportforcorrectcalibrationlevelsbefore
proceedingfurther.
Inthecas
eofaHarris‐suppliedrack,theseconnectionsaremadeatthecustomerI/Opanelatthetopoftherack
(seeFigure2‐8onpage2‐13).Inthecaseofacustomer‐suppliedrack,theseconnectionsaremadeattherearpanel
oftheLPU(seeFigure2‐7onpa
ge2‐12).
Figure 2-7 RF Samples Connections: LPU Rear
Table2‐5AudioMainL/RJ7&AudioAuxL/RJ8
PinNo. Designation
1 Ground
2 Le
ft+/Mono1+
3 Le
ft‐/Mono1‐
4 Right+/Mono2+
5 Right‐/Mono2‐