Motorola Tarpon V. 120C Service Manual page 36

Troubleshooting
V.120c
RF signal is routed to the Front End IC
(FE IC)- U100, which contains LNA which provides a
10-12 dB gain to the received RF signal, and U100 provides
interstage filtering and it contains Mixer which down converts
the frequency of the signal to IF which is 109.65Mhz. for
Analog and 109.8Mhz for CDMA. The local oscillator signal which
is input to the FEIC is 978-1004 Mhz.
© 2001 Motorola, Inc. 36