Name: Motorola APX 2000
Brand: Motorola
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Theory of Operation: Main Board 3-9

Figure 3-8. Receiver Block Diagram (UHF1/UHF2)

Figure 3-9. Receiver Block Diagram (700/800 MHz )

Figure 3-10. Receiver Block Diagram (900 MHz )

Antenna

Switch

15 dB Step

Attenuator

UHF UHF

IF Filter

DIG_CTRL_ATTH Rx LO

To GPS

Diplexer

SSI

18Mhz

CLK

Abacus III

ABACUS III

Dec.

Filter

ΣΔ ADC

2nd

LO CLK

Harmonic

Filter

15 dB Step

Attenuator

Antenna

Switch

DIG_CTRL_ATTH

700

800

700

800

Rx LO

IF Filter

To GPS

Diplexer

SW SW SW

SSI

18Mhz

CLK

Abacus III

ABACUS III

Dec.

Filter

ΣΔ ADC

2nd

LO CLK

Harmonic

Filter

Antenna

Switch

15 dB Step

Attenuator

900 900

IF Filter

DIG_CTRL_ATTH

Rx LO

To GPS

Diplexer

SSI

18Mhz

CLK

Abacus III

ABACUS III

Dec.

Filter

ΣΔ ADC

2nd

LO CLK

Harmonic

Filter

Other manuals for Motorola APX 2000

User Guide206 pages

Basic Service Manual526 pages

Quick Reference Guide46 pages

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Motorola APX 2000 Specifications

General

IP Rating	IP67
Operating Temperature	-30°C to +60°C
GPS	Optional
Bluetooth	No
Frequency Range	700/800 MHz
Power Output	1-5 W (VHF), 1-3 W (700/800 MHz)
Channels	Up to 1, 000
Battery Life	Up to 10 hours (digital)
Digital Protocol	APCO P25
Frequency	VHF: 136-174 MHz, UHF: 380-470 MHz, 700/800 MHz: 764-870 MHz
Power	1-3W (700/800 MHz), 1-5W (VHF)