PCBA  Images

About TECircuit

Found: TECircuit has been operating since 2004.

Location: An electronics manufacturing service(EMS) provider located in Shenzhen China.

Item: Customizable EMS PCB, offers a full range of one-stop shop services.

Service: Printed Circuit Board (PCB)and Printed Circuit Board Assembly(PCBA), Flexible Printed Circuit Board(FPC), Components Sourcing, Box-Building, Testing.

Quality Assurance: UL,ISO 9001, ISO 14001, ISO 13485, ITAF 16949 andcomplied with ROHS and REACH.

Factory Pictures:
Company's own plant : 50,000 sqm; Employees : 930+; Monthly production capacity : 100,000 m2

PCBA  Applications

• Emergency and Public Safety Communication: The PCBA enables instant, push-to-talk (PTT) group communication for first responders, police, and fire departments during critical incidents where cellular networks are unreliable or overloaded, ensuring reliable command and coordination.

• Industrial and Site Coordination: Used on construction sites, in manufacturing plants, at ports, and for event management, the PCBA facilitates real-time voice communication between teams spread across large, complex areas, improving operational efficiency and safety.

• Outdoor Adventure and Exploration: Serves as an essential tool for hikers, skiers, maritime crews, and expedition groups operating far beyond cellular coverage, providing a lifeline for group coordination, safety check-ins, and emergency signaling in remote environments.

• Transportation and Logistics Fleet Management: Enables dispatchers to communicate directly with drivers of trucks, taxis, or forklifts within a local area or across a city, streamlining logistics, delivery updates, and on-the-go task assignments.

• Military and Tactical Field Operations: Designed for rugged use, specialized PCBA implementations provide secure, encrypted, and long-range communication for tactical units in the field, often incorporating advanced features like scrambling and frequency hopping.

• Agricultural and Rural Coordination: Allows farmers and workers to communicate across vast fields, orchards, or ranches for coordinating machinery, labor, and responses to issues like livestock management or equipment breakdowns.

• Community Security and Neighborhood Watch: Provides a simple, direct communication network for community patrols or security teams within a suburban or localized area, enabling quick reporting and response to incidents.

PCBA Features 

1. High-Power RF Transceiver and Power Amplifier (PA): The PCBA integrates a robust RF transceiver chipset paired with a high-power amplifier module. This combination is designed to transmit signals at legally allowable power levels (e.g., 4-5 Watts for UHF/VHF) to maximize range and penetration through obstacles.

2. VHF/UHF Dual-Band Capability: Many boards support both Very High Frequency (VHF, 136-174 MHz) and Ultra High Frequency (UHF, 400-520 MHz) bands. VHF offers better range in open areas, while UHF performs better in urban or wooded environments, with the PCBA providing the switching and filtering for both.

3. Advanced Audio Processing with Noise Suppression: Features a digital signal processor (DSP) or dedicated audio IC that applies compression, filtering, and noise-cancellation algorithms to the microphone input. This ensures transmitted audio is clear and intelligible, even in very loud environments like construction sites or crowded events.

4. Efficient Power Management and Battery Regulation: Employs an advanced Power Management IC (PMIC) designed for high-current draw during transmission and ultra-low power during standby. It manages battery charging (for Li-ion packs), provides stable voltage to the RF PA, and is crucial for achieving long battery life.

5. Programmable Microcontroller Unit (MCU) with Channel Management: At its core, a programmable MCU stores hundreds of channels, manages squelch settings (to mute background noise), controls the digital display, and handles the logic for scanning channels and accessing sub-codes (CTCSS/DCS) for private conversations.

6. GPS Module Integration (for Advanced Models): High-end PCBA designs incorporate a GPS receiver module. This allows the walkie-talkie to transmit its location along with voice, enabling features like man-down alerts, real-time asset tracking, and location sharing on a dispatch map.

7. Ruggedized Design and Environmental Protection: The PCBA is often conformally coated to protect against moisture, dust, and vibration. Components are selected for a wide operating temperature range, ensuring reliability in harsh outdoor and industrial conditions.

FAQ

​PCB & PCBA  Description​

PCB Assembly OEM Service

Electronic Components Material Purchasing

Bare PCB Fabrication

Cable, Wire-harness Assembly, Sheet Metal, Electrical Cabinet Assembly Service

PCB Assembly Service: SMT, BGA, DIP

PCBA test: AOI, In-Circuit Test (ICT), Functioal Test (FCT)

Conformal Coating Service

Prototyping and Mass Production

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PCBA ODM service

PCB Layout, PCBA Design According To Your Idea

PCBA Copy/Clone

Digital Circuit Design / Analog Circuit Design/ lRF Design /Embedded Software Design

Firmware and Microcode Programming Windows Application (GUI) Programming/Windows Device Driver (WDM) Programming

Embedded User Interface Design / lSystem Hardware Design

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