SM1000 FreeDV Adpapter

Name: SM1000 FreeDV Adpapter
SKU: 7649
Price: 195.00 USD
Availability: InStock
Rating: 5.00 (2 reviews)

(2 Reviews)

OpenSource FreeDV, Codec 2 vocoder

Sold By DRAGINO TECH

2019-11-14T09:59:10.587Z-TIM图片20191114174202.png

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OpenSource FreeDV, Codec 2 vocoder

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.

Note: For Australia orders, please contact Rowetel to order locally. The Rowetel link here for your reference: http://www.rowetel.com/?page_id=3902

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Review Breakdown

Average Ratings

Product: (5.00)

Documentation: (5.00)

Shipping: (5.00)

Communication: (5.00)

Mladen | Jan. 20, 2024

Very good product.

Works as described.
Seller is very correct!!
Fast and reliable shipping, communication with seller is very good.

Keith | July 14, 2020

2nd SM 1000 purchased

I am in a growing group of radio amateurs who are using Free Dv ( free digital voice ) on a daily qso. The FDV signals are using a very narrow bandwidth and the audio is like FM. There is no background noise and once the signal is locked onto fdv a qso is very much like fm. I use one sm 1000 to decode and transmit the signals and a second sm 1000 to listen to signals on one of the repeaters so that I can listen to signals from distant stations. This can be done using fdv software via a computer but with the sm1000 it is so much better.