The AllScan UCI120 is a professional-grade USB Audio/PTT communications interface designed for applications like AllStar, EchoLink, and other push-to-talk (PTT) communications. It serves as a high-quality interface for connecting communication microphones, speakers, and related audio equipment to computers or embedded systems.
Key Features:
- Comprehensive LED Indicators: Displays for USB host status, Mic PTT (ASL COS), Mic Signal & Clip, and RX (ASL PTT) facilitate easy monitoring and adjustment of mic input levels, reducing the risk of ADC clipping.
- Adjustable Mic Gain: Offers a 50dB gain adjustment range through Mic Gain Adjust and Mic Boost controls, accommodating a wide variety of communication microphones and dynamic mics.
- Enhanced Audio Connectivity:
- TRRS Line Out jack supports stereo TRS line out and an external mic input with switchable bias voltage for electret mics and headsets.
- Insert I/O Jack allows integration with external audio processors, channel strips, mixers, and other audio systems.
- Internal Adjustments: Equipped with internal trimmer potentiometers and DIP switches for fine-tuning mic preamp and AGC parameters, ensuring optimal audio performance.
- Durable Design: Housed in an extruded aluminum enclosure with ferrite and bypass capacitor filtering on all inputs and outputs, enhancing durability and resistance to EMI/RFI.
- Optimized Audio Performance: Features 6dB/octave bandpass filters ahead of the AGC mic preamp, ADC, and speaker amp to minimize background noise and prevent ADC clipping and AGC gain-pumping.
- Full-Duplex Support: Capable of full-duplex audio operation without reliance on PTT or COS signals, functioning as a standard USB audio interface across Windows, Mac, and Linux platforms.
Pricing and Availability:
- UCI120: Available on my eBay store (link at the top of the page) this package includes a fully assembled and tested unit , ready for connection to any Raspberry Pi or MiniPC running ASL, HamVOIP, DVSwitch, or other PTT communication applications. Note: Microphone, USB-C data lead and speaker are not included.
Applications:
The UCI120 is primarily intended for use in radio-less AllStar nodes but is versatile enough for any PC, smartphone, embedded, or VOIP application requiring a high-quality interface to amateur and commercial radio communication microphones and speakers. It is not designed to interface directly with radio transmitters or receivers.
Connection diagram
For more detailed information, including schematics, block diagrams, and additional resources, please visit the AllScan UCI120 Product Page.