Specifications

Maxiva ULX Series
November 11, 2013
5‐13
888‐2628‐300 WARNING:Disconnectprimarypowerpriortoservicing.
Copyright©2013,HarrisBroadcast
5.9.1.1 AverageandPeakConversionFormulaandExamples
AveragePower=PeakVisualPower*Factor
PeakVisualPower=AveragePower/Factor
Example1:CalculatetheaveragepowerofaSystemMtransmitteroperatingat1000Wpeakvisualwith
anauralinjectionlevelof‐10dB.
FactorforSystemMwith‐10dBauralinjection=0.695
AveragePower=1000W*0.695=695W
Example2:CalculatethepeakvisualpowerofaSystemKtransmitterwith‐13dBauralinjectionifthe
averagepoweris1600W.
FactorforSystemKwith‐13dBauralinjection=0.645
PeakVisualPower=1600W/0.645=2480W
Example3:CalculatetheaveragepowerofaSystemBtransmitteroperatingat60kWpeakvisualwithno
aural.
FactorofSystemB,visualonly=0.567
AveragePower=60kW*0.567=34.02kW
Usethefollowingformulatocalculatefactorsforotherauralinjectionlevels:
Factor=v+10
(a/10)
Where:v=visualonlyfactorforsystem
a=auralinjectionlevel
*Incaseswithmultipleauralcarriers,(Nicam,DualCarrier)addthefactorsforeachauralcarriertothe
visualfactor.
Example4:Auralcarriersat‐13dBand‐20dBforsystemB
Factor= v+10(a/10)+10(a/10 )
Factor= v+10(‐13/10)+10(‐20/10)
Factor= 0.567+0.0501+0.01
Factor=0.627
5.9.2 ForwardPowerCali bration
EquipmentUsed:
• Maxivaprecisiondirectionalcouplers(precisionmeaningthatthecouplingratiohasbeen
measuredattheoperatingfrequency)
• Averagingpowermeterwithpowerprobe
Note
Power calibrations must be performed using the local GUI screen. In order to change calibration settings
the user must supply a login and a password. When the transmitter ships from the factory the local GUI
default login is "admin" and the default password is "admin" (do not include quotation marks in login or
password). The default password allows setting of remote passwords only. Refer to
"3.2.2 TCU - Initial
Login & Passwords" on page 3-2. You will not be able to make changes or have remote access without
changing the default username/password.