TRANSCEIVER 800 MHz MTP700 Portable Radio / Detailed Service Manual 4.2 - 9
RX Second Local Oscillator (LO)
The second LO synthesizer supplies the second IF local oscillator frequency to the
receiver. It produces 219.3 MHz that is divided by two in the WPIC in order to down-con-
vert the received signal to the baseband.
Transmit PLL
The transmit PLL consists of the ESCORT IC and transmit VCO. The ESCORT IC
receives the reference signal from the main synthesizer. The ESCORT IC which is
another PLL together with the transmit VCO does the synthesis of the required trans-
mitter signal.
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