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The SM1000 allows you to run FreeDV without a PC on any radio. Just plug it into your SSB or FM radio, and you now have Digital Voice (DV). You don't have to buy a new radio to run Digital Voice! It’s based on a STM32F4 micro-controller, has a built in microphone, speaker amplifier, speaker, and transformer isolated interfaces to your radio. It’s just 80 x 100mm, and can be held in you hand and used like a regular PTT microphone. Or it can sit on your bench and work with your favourite headset.
The SM1000 was developed by David Rowe VK5DGR and Rick Barnich KA8BMA. It is being manufactured, tested and shipped by our good friend Edwin at Dragino in Shenzhen, China. The SM1000 is completely open - hardware and software - including the Codec 2 vocoder. You are encouraged to modify the software and hardware. It is possible to reprogram the SM1000 for other applications, such as speech processing for SSB radio using open source gcc tools.
The rig audio and PTT connections are 3.5mm audio sockets in parallel with a RJ45. A small patch panel can be used to configure the RJ45 pin out for your radio. You need to supply audio cables, e.g. 3.5mm or RJ45 to your radio. The SM1000 operates from 8-16V (12V nominal) and uses approximately 200mW. Perfect for mobile or SOTA work! It also has a USB port to support reflashing from a Windows or Linux PC.
The initial firmware load will be a "FreeDV 1600" compatible mode. Later in 2015 enhanced (low SNR) HF and VHF FreeDV modes will be released.
The SM1000 supports "analog pass through" so you can make SSB contacts without having to swap microphones. Press the mode button and it's DV, one more press and you're back to SSB. It's easy to setup - a LED indicates microphone level clipping on transmit and errors on receive. Levels (to and from your radio and mic gain) are set using trimpots.
The SM1000 is supplied in a sturdy metal enclosure, with a USB programming cable, and jumper wires for the RJ45 patch panel. You need to supply a 2.5mm plug centre positive 12VDC (nominal) power source, and patch cables to connect to your radio.
Note: Prices are exclusive of local taxes and import duties.
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DHL: Express, arrive in 3~5 days
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We look for the most active & best members of the Tindie community, and invite them to join. There isn't a selection process or form to fill out. The only way to become a Tindarian is by being a nice & active member of the Tindie community!
Dragino Technology Co., Limited is founded by experienced engineers in 2010. Our background is telecom field and we are specialists in product design/developing/manufacturing.
Dragino's mission is to help customers to solve the connectivity problem and enhance the performance of MCU such as AVR. Another important mission of Dragino is to help customer to make new commercial/stable products in less time,low cost , low risk even for low quantity. We wish through our effort, more innovation products can be made for the market, in a commerical, professional form.
Dragino is an open source hardware provider, we help customers to design their solutions based on open concept. Customers are free to modify their solution /hardware and Dragino is always trying the best to help customers doing this. We believe this is the way to improve products from time to time.