TC328DB Digital Explosion-proof DMR Radio Intrinsically Safe for Oil & Gas

Features:

• DMR radio
• Explosion-proof radio, Ex ibIIB T4 Gb
• Digital and Analog two modes
• Repeater capable
• VOX Hands-free Function
• IP67 Waterproof & Dustproof
• Remote Monitoring
• Recording Function
• Type-C Charging
• ARC4 & AES256 Encryption
• SMS Function

Application:

• Construction Sites
• Mining
• Transportation
• Logistics
• Oil & Gas

Standard pack:

• Radio*1
• Antenna*1
• Charger set*1
• Battery*1
• Belt clip*1
• Hand strap*1
• Users’ Manual*1

Chierda TC328DB explosion-proof radio is intrinsically safe, engineered specifically for workers in high-risk environments like chemical plants, coal mines, gas stations, oil companies, and fire stations. It meets the Ex ibIIB T4 Gb standard.

Digital and Analog Modes Combined

TC328DB is digital and analog modes combined. The radio can switch between digital and analog modes. In addition, it is repeater capable. You can pair TC328D with V9D digital repeater to extend battery life.

IP67 Fully Sealed Waterproof & Dustproof

TC328Db is certified IP67 waterproof and dustproof. It can remain fully functional even after being submerged in one meter of water for thirty minutes. Even in environments filled with corrosive gases or dust, the mainboard remains perfectly protected.

Average service life in heavy-duty industrial environments is extended by 20%.

Remote Monitor

When you are in digital mode and channels, you can push the programmable button to start the monitoring process. A single beep means start, and the handheld radio beep twice means the process ends. You can keep everything in total control.

SMS Function

TC328D DMR radio has SMS function and voice recording. With up to 500 hours of storage space, you can easily playback the recording.

VOX Hands-free

TC328D has VOX function to allow for hands-free operation. Once this feature is enabled, you can adjust the sensitivity level for triggering voice transmission.

 

Technical Data:

GENERAL		TRANSMITTER		RECEIVER
Frequency Range	UHF:400-480MHz or VHF:136-174MHz	Output Power	5W	Analog Receiver Sensitivity	0.35uV/-116dBm(20dB SINAD) 0.22uV/-120dBm(Type)
Channels	128(8 zone)	Frequency Stability	±1.0ppm	Digital Receiver Sensitivity	0.3uV-117.4dBm(BER 5%) 0.7uV/-110dBm(BER 1% )
Channel Spacing	12.5kHz/25kHz	Adjacent Channel Power	-60dBm@12.5kHz	Blocking	84dB
Antenna Impedence	50Ω	Modulation Mode	FM	Adjacent Channel Selectivity	TIA603C:-65dB ETS1:-60dB
Operating Temperature	-20℃+60℃	Modulation limits	2.5kHz@12.5kHz 5kHz@25kHz	Audio Frequency Power	≥500mW
Storage temperature	-40℃+85℃	Audio Distortion	≤5%	Audio Response	+1dB~-3dB
Operating Voltage	DC 7.4V	Vocoder Type	AMBE+2TM	Receiving Spurious Transmitting	≤-57dBm@30MHz~1GHz
Battery Type	2500mAh Li-ion	4FSK Digital Modulation	12.5kHz(data only)		≤-47dBm@1GHz~12.75GHz
			12.5kHz(data+voice)	Audio Distortion	≤3%(Type)
Dimension (No indude antenna and knob)	126.5*57*37.9mm	Digital Protocol	ETSI TS 102361-1.-2.-3	Spurious Response	TIA603C:-65dB ETSL-65dB
		FM Noise	-40dBm@12.5kHz
		Spurious emissions	＜-36dBm@1GHz ＞-30dBm@1GHz
		Vocoder type	AMBE+2TM
		Audio response	+1dB~-3dB

FAQ

Q1: What is your Minimum Order Quantity (MOQ)?

Our MOQ for standard neutral products is usually 2 units. For custom branding (OEM), the MOQ depends on the level of customization—usually 500 units for custom logos. We also support sample orders for quality testing before bulk purchasing.

Q2: What is the lead time for bulk orders?

For standard products in stock, we can ship within 5 working days. For bulk OEM orders, the typical production time is 15-25 days, depending on the order volume and customization requirements.

Q3: Do you offer bulk discounts or wholesale pricing?

Yes, we offer competitive factory-direct tiered pricing. The larger your order volume, the lower the cost per unit. Please send us an inquiry with your estimated order size to get an official quotation.

Q4: What OEM/ODM customization services do you provide?

We offer comprehensive customization including: laser/silk-screen logo printing, custom gift boxes and user manuals, firmware customization (boot-up screens, custom channel frequencies, local language voice prompts), and even custom shell colors or completely new mold designs (ODM).

Q5: What is your warranty policy and how do you handle after-sales?

We provide a 12-month warranty on the radio body and a 6-month warranty on accessories (batteries, chargers, antennas). In case of a rare manufacturing defect, we provide replacement radios or technical troubleshooting guidance with your next shipment.