Chapter 2 Radio Power
This chapter provides a detailed circuit description of the power distribution of an ASTRO APX 1000
radio.
2.1 General
In the ASTRO APX 1000 radio, power (B+) is distributed to two boards: the main board and the
keypad board (Figure 2-1).
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_ Li-Ion 1900 mAh
PMNN4424_ Li-Ion 2300 mAH
PMNN4448_ Li-Ion 2700 mAh
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