Motorola APX 2000 Detailed Service Manual

Chapter 2 Radio Power
This chapter provides a detailed circuit description of the power distribution of an ASTRO APX 2000/
APX 4000/ APX 4000Li/ APX 1000 (900 MHz) radio.
2.1 General
In the ASTRO APX 2000/ APX 4000/ APX 4000Li/ APX 1000 (900 MHz) radio, power (B+) is
distributed to two boards: the main board and the keypad board (see Figure 2-1 on page 2-2).
Power for the radio is provided through a battery supplying a nominal 7.5 Vdc directly to the
transceiver. The following battery types and capacities are available:
Table 2-1. IMPRES Batteries
Part Number Description
NNTN8128_ APX 2000 IMPRES Li Ion Battery Slim (1900 mAH)
NNTN8129_ APX 2000 IMPRES Li Ion High Cap Battery (FM, 2300 mAH)
PMNN4424_ APX 2000 IMPRES Li Ion High Cap Battery (2300 mAH)
NNTN8560_* APX 2000 IMPRES Li Ion High Cap Battery (TIA4950, 2500 mAH)
Note:
* = Applicable to APX 2000/ APX 4000 (Two Knobs) only.

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)