2.3.3 RFDS - Preselector (VHF)
Figure 2-13
Preselector (UHF)
2.3.3 RFDS - Preselector (VHF)
The preselector rejects unwanted signals including the transmitter signals from overloading the receiver. This filter
must be included to fulfill TIA102-CAAB Class A spurious response rejection (90 dB). The filter is usually not
required when using a receiver multicoupler system. This filter can be retuned in the field.
Figure 2-14
Preselector (VHF)
2.3.4 RFDS - Transmit Filter (700/800 MHz)
The transmit filter removes any noise in the receive sub-band. The Tx Output from the GTR 8000 Base Radio
connects to the Transmit Filters Tx In. The Transmit Filters Tx Out connects the Tx Output or any other RFDS
equipment.
6871022P86-A - November 2012
2-13
Содержание GTR 8000
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