Name: DH460 DMR Portable Radio
Brand: Caltta Technologies Co., Ltd.

Features of DH460 DMR Portable Radio

Richer Operation
The 1.75-inch LCD screen and half-keyboard bring users a richer operating experience.

Classic Design
Dual-color body, lightweight, high-quality. Off-belt clip, classic knob layout, easy to operate.
Ruggedized Design
18-pin waterproof accessory interfaces ensure IP65 protection.

Digital and Analog Compatibility
It supports digital and analog modes and provides rich services such as short messages, roaming, stun/revive, and radio check to help users work more efficiently.

Loud and Clear Voice
2W high-power speaker, combined with an optimized sound cavity and MIC noise-reduction algorithm, makes loud and clear sound with maximum efficiency, ensuring clear communication in noisy environments.
Long Working Time
With a standard 2500mAh battery and digital power-saving technology, the digital mobile radio lasts for 18 hours in the analog mode and 25 hours in the digital mode (5:5:90 traffic model) and fully meets the continuous working requirements of the front-line users.
Longer Communication Distance
Carefully optimized RF circuit offers a high receiving sensitivity of 0.16uV. Combined with an integrally formed helical antenna, it achieves longer-distance communication.
Safe and Reliable
Lone worker and SOS alarm bring user operation safe; basic voice encryption protects users' call information.

Real-time Clock
Built-in clock module, the time will not reset during battery replacement.

Specifications of DH460 DMR Portable Radio

General
Digital Protocol	ETSI TS 102 361-1,-2,-3
Frequency	UHF1: 400-470MHz UHF3: 350-400MHz VHF: 136-174MHz
Channel Capacity	512
Zone Capacity	32
Channel Spacing	12.5KHz/20KHz/25KHz
Frequency Stability	±0.5ppm
Operating Voltage	7.4V
Battery Capacity	2500mAh
Battery Life(5:5:90)	Analog: 18 hours Digital: 25 hours
Size (H x W x D)	116.5 x 55 x 36.5 mm (Without Antenna)
Weight	About 285g (With Antenna and 2500mAh Battery)
Screen	1.75’ Blue/White LCD, 160*128
Vocoder	AMBE++
Layout	Top: volume/switch knob x1, channel knob x1, SOS key x1 Side: PTT key x1, programmable key x2, Front: 6-key function keypad, programmable key x3
Accessory Interface	18PIN Waterproof, Support Audio/UART Programming
Roaming	Support
Encryption	Support 40/128/256bit Private Basic Encryption
Receiver
Sensitivity(Analog Typical)	0.16uV(12dB SINAD)
Sensitivity(Digital Typical)	0.16uV (5% BER)
Adjacent Channel Selectivity	60 dB@12.5KHz/70 dB@20/25KHz (TIA603A)
Adjacent Channel Selectivity	60dB@12.5KHz /70 dB@20/25KHz ( ETSI )
Intermodulation	70 dB (TIA603D)
Intermodulation	65 dB (ETSI)
Spurious Rejection	70 dB (TIA603D)
Spurious Rejection	70 dB (ETSI)
Blocking or Desensitization	80dB(TIA603D)
Blocking or Desensitization	84dB(ETSI)
Co-channel Rejection	-12~0 dB @12.5KHz/-8~0 dB @20/25KHz
Hum and Noise	-40 dB@12.5KHz /-43 dB@20KHz /-45 dB@25KHz
Rated Audio Power	0.5W
Max Audio Power	2.0W
Audio Distortion @ Rated Audio	≤3%
Audio Response	+1～-3dB (TIA603D)
Conducted Spurious Emission	-57 dBm (TIA603D)
Transmitter
Low Power Output	1W
High Power Output	4W (UHF1&UHF3) / 5W (VHF)
FM Modulation	12.5KHz: 11K0F3E / 20KHz: 14K0F3E / 25KHz: 16K0F3E
4FSK Digital Modulation	12.5KHz Data Only: 7K60F1D&7K60FXD
	12.5KHz Voice Only: 7K60F1E&7K60FXE
	12.5KHz Voice And Data: 7K60F1W
Conducted/Radiated Emission	-36dBm ≤1GHz ; -30dBm >1GHz
Modulation Limiting	±2.5KHz @12.5KHz /±4KHz @20KHz /±5.0KHz @25KHz
FM Hum and Noise	-40 dB@12.5KHz /-43dB@20KHz /-45 dB@25KHz
Adjacent Channel Power	60 dB@12.5KHz /70 dB @20/25KHz
Audio Distortion @ Rated Audio	≤3%
Audio Response	+1～-3dB(TIA603D)
Environmental
Operating Temperature	-30℃ ~ +60℃
Storage Temperature	-40℃ ~ +85℃
ESD	IEC 61000-4-2 (level 4) ±8kV (Contact) ±15kV(Air)
Dust and Water Resistance	IP65
Reliability	According to MIL-STD-810 G