Motorola APX4000 Walkie Talkie

Motorola APX4000

Motorola APX4000 is the compact P25 handheld radio that turns chaos into calm. Purpose-built for mission-critical voice and data,this motorola police walkie talkie slips easily into turnout-gear pockets yet delivers the full power of ASTRO 25 trunking, AES-256 encryption and over-the-air programming—so every responder hears and is heard the first time.

Main features

True P25 Phase 2 Performance
Double voice capacity without new spectrum. Backward- and forward-compatible with legacy Motorola systems, SmartZone®, SmartNet® and other vendors’ P25 networks—perfect for county-wide rollouts where some agencies still run analog.
Mission-Critical Audio Clarity
Dual-mic noise suppression, 0.5 W loudspeaker and intelligent audio profiles cut through sirens, engines and crowd noise. Firefighters in high-SCBA environments and riot-control officers both get word-perfect intelligibility.
MIL-STD Rugged & IP67 Submersible
Certified to 810 G for shock, vibration, temperature shock, salt fog and dust. Survives 2 m water immersion for 2 hours—ideal for marine patrol, HazMat wash-downs and desert search-and-rescue.
Secure, Future-Ready Encryption
On-board 256-bit AES/ADP with 1024-key storage plus FIPS 140-3 Level 3 tamper detection. Enables secure narcotics task-force channels today and scales to federal crypto policies tomorrow.
Compact, Ergonomic Form Factor
137 mm long, 285 g without battery. Fits uniform shirt pockets yet offers large PTT, top-mounted 16-position knob and programmable orange emergency button—gloved-hand operation confirmed.
Smart Energy & Remote Management
IMPRES 1 900–2 700 mAh Li-Ion batteries with side-charging pods. Over-the-air code-plug updates keep fleets current without pulling radios off duty—crucial for 24/7 correctional facilities.
Flexible Frequency Coverage
Available in 700/800 MHz, VHF, UHF R1/R2 and 900 MHz. One model covers statewide mutual-aid channels, campus security and utility SCADA links—reducing spare-parts inventory.
Bluetooth Mission Critical Wireless
Encrypted link to wireless RSMs, surveillance earpieces and LTE body-cams. Detectives on undercover details and bike-patrol officers gain cable-free mobility without sacrificing security.

Other functions

Zone & Channel Select
Scan List Edit
TX Power Level
Encryption On/Off
AES Key Index
PTT-ID Alias
Emergency Button Function
Man-Down Alert Enable
Lone Worker Timer
Voice Announcement Language
Bluetooth Pairing & Priority
GPS On/Off & Report Interval
Text Message Quick Template
Call Alert Tone Volume
Mic Gain & Audio Profile

Accessories

Antenna(VHF/UHF)
Battery
Charger
Power adapter
Dust cover
Clip
Manual

Specifications

TRANSMITTER – TYPICAL PERFORMANCE SPECIFICATIONS
Frequency Range/ Bandsplits	700 MHz 800 MHz	763-776, 793-806 MHz 806-824, 851-870 MHz	136-174 MHz	380-470 MHz	450-520 MHz	896-902, 935-941 MHz
Channel Spacing		25/12.5 kHz	30/25/12.5 kHz	25/12.5 kHz	25/12.5 kHz	12.5 kHz
Maximum Frequency Separation		Full Bandsplit	Full Bandsplit	Full Bandsplit	Full Bandsplit	Full Bandsplit
Rated RF Output Power Adj		1-3 Watts Max	1-5 Watts Max	1-5 Watts Max	1-5 Watts Max	1-2.5 Watts Max
Frequency Stability (-30°C to +60°C; +25°C Ref.)		±0.00010 %	±0.00010 %	±0.00010 %	±0.00010 %	±0.00010 %
Modulation Limiting		±5 kHz / ±4 kHz / ±2.5 kHz	±5 kHz / ±4 kHz / ±2.5 kHz	±5 kHz / ±4 kHz / ±2.5 kHz	±5 kHz / ±4 kHz / ±2.5 kHz	±2.5 kHz
Emissions (Conducted and Radiated)		-75 dB	-75 dB	-75 dB	-75 dB	-75 dB
Audio Response		+1, -3 dB	+1, -3 dB	+1, -3 dB	+1, -3 dB	+1, -3 dB
FM Hum & Noise	25 kHz 12.5 kHz	-47 dB -45 dB	-47 dB -47 dB	-47 dB -45 dB	-47 dB -45 dB	-45 dB
Audio Distortion	25 kHz, 12.5 kHz	1.00%	1.00%	1.00%	1.00%	1.00%