Specifications

Maxiva UAX
October 17, 2013
3‐69
888‐2693‐004 WARNING:Disconnectprimarypower priortoservicing.
Copyright©2013,HarrisBroadcast
Caution
CHANGING THE SOUND CARRIER AND CARRIER LEVEL (WITH SOUND ON)
SETTINGS ON THE BTSC SETUP SCREEN WILL CAUSE THE TRANSMITTER
TO MUTE TEMPORARILY.

Figure 3-65 LPU Analog Setup Screen 3 BTSC
Table3‐62 MonauralSoundCarrierFrequencies(relativetovideocarrierF)
AnalogSystemStandard M N B/G D/K K1 I
Soundcarrierfrequency,relativetothe
videocarrierfrequency.
4.5MHz+/
‐2Hz
4.5MHz+/
‐2Hz
5.5MHz+/
‐2Hz
6.5MHz+/
‐2Hz
6.5MHz+/
‐2Hz
5.9996MHz
+/‐2Hz
Modulationsensitivity,ataparticular
audiofrequencyandatanominalinput
levelan
dimpedance.
25kHzat500Hz,
+6dBm‐600ohm
30kHzat
500Hz,+6
dBm‐600
ohm
50kHzat1kHz,
0dBm‐600ohm
42.5kHzat
500Hz,
+8dBm‐600
ohm
Carrierlevelreferencedtovisionpeak
ofSync
Monaural:‐10dB WithoutNICAM:‐10dB+/‐2dB
BTSC:‐10dB WithNICAM:‐10dBto‐15dB
Table3‐63XmtrHome>ExciterHome>Setup>AnalogModulator(BTSCscreen3)
Field Explanation
MonoCarr
ierSetupSubWindow (Screen3)
SoundCa
rrier
ChoicesareOf
forOn.
Offisus
edtoturnthesoundcarrierofffortestpurposes.
CarrierLev
el
CarrierLe
vel:Valueenteredin‐dB.
Thisre
presentstheamplitudeadjustmentofthesoundcarrierlevelindBrelativetopeaksyncofthe
visioncarrierrange.
Procedure:
Step1)Di
splaythechannelspectrumonaspectrumanalyzer.
Step2)Setvi
sualcarrierpeakofsyncreferencelevelto0dBm.
Step3)Ad
justtheCarrierLevel(soundcarrierlevel)toachievethedesiredpeakvisualtosoundcarrier
ratio.
Gain
ValueenteredindB.
Theva
lueenteredinthiswindow(rangeof‐9.9to+6dB)isintendedtochangethesoundinputgainso
thattheadjustedsignallevelwillbe0dBm.
Iftheactualinpu
tlevelisotherthan0dBm,theGainmustbeadjustedtochangetheinputlevelto0
dB.Whentheinputlev elhasbeencorrectlyset,thedeviationwillbe+/‐50kHzforPALand+/‐25kHzfor
BTSC.
Forexa
mple,iftheactualinputlevelis‐6dBm,setGainto+6dB,toproducecorrectaudiodeviation.
DeviationLim
iter ChoicesareOfforOn.