Motorola GTR 8000 - RFDS - Preselector (VHF); RFDS - Transmit Filter (700;800 Mhz); Figure 2-13 Preselector (UHF); Figure 2-14 Preselector (VHF)

2.3.3RFDS-Preselector(VHF)
Figure2-13Preselector(UHF)
2.3.3RFDS-Preselector(VHF)
Thepreselectorrejectsunwantedsignalsincludingthetransmittersignalsfromoverloadingthereceiver.Thislter
mustbeincludedtofulllTIA102-CAABClassAspuriousresponserejection(90dB).Thelterisusuallynot
requiredwhenusingareceivermulticouplersystem.Thisltercanberetunedintheeld.
Figure2-14Preselector(VHF)
2.3.4RFDS-TransmitFilter(700/800MHz)
Thetransmitlterremovesanynoiseinthereceivesub-band.TheTxOutputfromtheGTR8000BaseRadio
connectstotheTransmitFiltersTxIn.TheTransmitFiltersTxOutconnectstheTxOutputoranyotherRFDS
equipment.
6871022P86-A-November20122-13