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Motorola APX 5000 User Manual

Motorola APX 5000
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Basic Theory of Operation: Analog Mode of Operation Sec 1: 3-7
3.2.2 Transmitting
When the radio is transmitting, microphone audio is digitized and then processed by the DSP and
sent to the Trident IC (see Figure 3-7 to Figure 3-10) via the SSI interface. The Trident IC processes
the SSI data for application to the voltage controlled oscillator as a modulation signal.
Figure 3-7. Transceiver (VHF) Block Diagram
Figure 3-8. Transceiver (UHF1) Block Diagram
S
Trident IC
Synthesizer
Loop Filter
TX VCO
Module
RX VCO
Module
RF Switch Matrix
TX Buffer Amp
TX Driver Amplifier
Transmitter Final FET VHF
Harmonic LP Filter
Ref. Oscillator
Antenna Connector
Directional
Coupler
SP3T RF Switch
TO RX
Reverse Power Detection
Log Amp Power Detector
Digital RF Attenuator
S
Trident IC
Synthesizer
Loop Filter
TX VCO
Module
RX/TX
VCO
Module
RF Switch Matrix
TX Buffer Amp
TX Driver Amplifier
Transmitter Final FET UHF1
Harmonic LP Filter
Ref. Oscillator
Antenna Connecto
r
RMT port
Directional
Coupler
SP3T RF Switch
TO RX
GPS
Reverse Power Detection
SP2T RF Switch
Log Amp Power Detector
Digital RF Attenuator

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Motorola APX 5000 Specifications

General IconGeneral
BrandMotorola
ModelAPX 5000
CategoryTwo-Way Radio
LanguageEnglish

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