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WKetel

3/12/2013 8:56 PM EDT

I don't think that this will "shake up" the amateur world, but it certainly ...

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VNP

3/9/2013 6:26 AM EST

There is not any baseband modem on the board but ADC and DAC (features of ...

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RF board takes Arduino-like approach

Peter Clarke

3/7/2013 4:55 AM EST

First board and database

The Myriad-RF-1 board measures 5-cm by 5-cm and requires a 5-V power supply and is software configurable to operate from 300-MHz to 3.8-GHz on 2G, 3G and 4G communication networks. Pre-built boards will initially retail for $299 or less. "The schematic layout and bill of materials are all available as an open database," said Bushehri.

The transceivers come with well-defined digital connections on one side, to go to FPGA or DSP basebands, and RF connectors to power amplifier front-end on the other, said Bushehri.

Bushehri said he hoped that complementary component makers such as vendors of power amplifiers, antennas, FPGAs and DSPs would also get involved with the initiative.

Why Separate Initiative?

When asked why it had not been chosen to address RF innovation by contributing to one of the established open-source digital hardware initiatives such as Arduino, Raspberry Pi, or Mbed, Bushehri said that one problem is that there are so many of these initiatives it would result in redundant work in each forum.

By forming a stand-alone open-source initiative focused on configrable RF it was hoped that work could be done once and links made to multiple digital hardware initiatives through well-defined interfaces. Bushehri said.

Lime is not the first to try and stimulate the creation of an open-source RF community. Open-Source RF (Irvine, Calif.) is a venture founded by Armen Kazanchian in mid 2012 under the Kickstarter program. It is looking to serve Arduino users with a plug-and-play wireless board for Arduino. The board, known as a shield, operates on a 2.4-GHz carrier frequency and includes an antenna. Apex Logic is an organization that creates open-source prototypes addressing a variety of applications and has developed low-cost RF transceiver designs and code for Arduino based on transceiver ICs that operate at 433-MHz.


Related links and articles:

www.myriadrf.org

www.limemicro.com

www.opensourcerf.com

www.apexlogic.net

News articles:


London Calling: CIA partners with UK RF firm

Femto Forum is renamed Small Cell Forum

Lime tunes flexible radio for move into mobile

Lime offers design kit for multi-transceiver






EREBUS

3/7/2013 3:49 PM EST

If they added a signal analyzer software bundle, I would be very interested. I can see a lot of uses for a device like this one.

Just my opinion,

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bobdvb

3/8/2013 5:11 AM EST

Take a look at the BladeRF from Nuand:
www.kickstarter.com/projects/1085541682/bladerf-usb-30-software-defined-radio
They have an open source radio platform which uses GNU Radio and provides analysis. I have been rather rash and ordered one already!

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peter.clarke

3/8/2013 8:06 AM EST

It is interesting to note that the BladeRF is based on the LMS6002D IC from Lime Microsystems because as Nuand states: "this transceiver is capable of handling anything from simple FM audio to the latest 4G LTE standard."

BladeRF does include the FPGA and a USB 3.0 digital connection and bus power.

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iniewski

3/7/2013 3:51 PM EST

Maybe this would be useful to teach RF at schools?

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yazhouren

3/8/2013 12:16 AM EST

hardware open source ?

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JohnBeattie

3/8/2013 12:09 PM EST

"Myriad-RF boards use FPRF transceivers to support all the mobile broadband standards – LTE, HSPA+, CDMA, 2G..."

Does this mean that the board can send and receive according, to, e.g. the CDMA PHY standard? Or does it mean that the board can send and receive at the relevant rf frequencies and actually imposing the digital signal on top of that is up to you?

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VNP

3/9/2013 6:26 AM EST

There is not any baseband modem on the board but ADC and DAC (features of LMS6002D). As Peter said above BladeRF includes all stuff (FPGA + ARM9) to play with mentioned standards. I like it.

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R Sweeney

3/8/2013 4:35 PM EST

Definitely going to shake up the amateur radio world.

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WKetel

3/12/2013 8:56 PM EDT

I don't think that this will "shake up" the amateur world, but it certainly looks like a very worthwhile contribution and it does appear to have a number of uses besides just communication. So I will be quite interested to see what all develops. If it can indeed be made to function as the core of a spectrum analyser then it would have immediate value to quite a few people, both hams and experimentors. BUT please don't compare them to Ardunio. Those ardunio projects always substitute a microcontroller board for a function that could be done with a simple comparator. A shameless promotion of a product line at the expense of understanding actual circuitry.

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