LimeSDR

by Lime Microsystems

Flexible, next-generation, open source software-defined radio

View all updates Nov 12, 2021

Supply Chain Crunch & New RF Filter Bank Demo

by Ebrahim B

The global supply chain crunch has severely disrupted production of Lime products. We’re still committed to bringing all Lime products back into regular availability. We’re plotting a course of action and we have updated delivery estimates accordingly. In the meantime, we’re excited to share a video demo of a new software-controlled frontend filter bank (a.k.a. preselector).

New Software-Controllable Frontend Filter Bank

The ATEK1001 is a software controlled sub-octave filter bank or "preselector" that covers a frequency range of 485-7700 MHz in seven bands, and has a bypass mode that can be used for full bypass, or alternatively to engage additional external filtering. The video below demonstrates the preselector in action with a LimeNET Micro. See the ATEK1001 project page for more details.

The Path to Resuming Production

Lime, like everyone else in the electronics industry, has been impacted by the global supply chain crunch that started earlier this year. From critical components like FPGAs and PLLs to (formerly) commodity components like passives, we’re struggling to source the parts we need to manufacture the Lime product line, including LimeSDR.

The quoted lead times we’re hearing from our suppliers are so outlandishly long and change so frequently that we can’t put much faith in them. So, while we’ve placed our orders and hope the supply chain settles down soon, we’re not betting on it and are actively pursuing other avenues to resuming production. For example, there is some hope of synthesizing a PLL in an FPGA and sourcing FPGAs with better availability. We’re also seriously considering repurposing perfectly good components on boards that have some other defect and would otherwise be scrapped. Happily, the one part we don’t need to worry about right now is our own - the LMS7002 transceiver, since we fortunately had a large batch produced prior to the semiconductor shortage.

In any case, we’ve adjusted all our estimated delivery dates according to our most up-to-date information. If you’ve already placed your order, you can see when it is estimated to ship by logging into your Crowd Supply account. If you are placing a new order, you can see the estimated delivery date before you complete your purchase.

As always, thank you for your support and patience!

About the Author

Ebrahim B

 Guildford, United Kingdom


$3,466,490 raised

of $500,000 goal

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Product Choices

$315

LimeSDR USB Type-A

The LimeSDR is based on Lime Microsystem’s latest generation of field programmable RF transceiver technology, combined with FPGA and microcontroller chipsets. These connect to a computer via USB 3 with a Type-A connector. LimeSDR then delivers the wireless data and the CPU provides the computing power required to process the incoming signals, and to generate the data to be transmitted by the LimeSDR to all other devices.


$99

Acrylic Case

A layered acrylic case to protect your LimeSDR. Antenna not included - separate purchase available.


$129

Lime AC Tetra Case

From the Lime AC Case project.

An aluminum case for LimeSDR USB Type-A, with one fan and 12 U.FL-to-SMA cables. This case allows for all on-board RF and CLK lines to be externally available.


$599

LimeSDR with Aluminum Kit

Start developing apps based on Lime Microsystem’s latest generation of field programmable RF transceiver technology. This board comes with fancy aluminum casing. The board will be delivered with turnkey support for a diverse range of SDR ecosystem software, a powerful API and rapid prototyping environment. All the boards in this category will come with a fancy Aluminum casing coated with high quality material, cables, and antennas for a quick set up.


$799

Ultimate LimeSDR With PCIe Interface

Start developing apps based on Lime Microsystem’s latest generation of field programmable RF transceiver technology. The board will be delivered with turnkey support for a diverse range of SDR ecosystem software, a powerful API and rapid prototyping environment. All the boards in this category will come with a PCIe interface, cables and Antennas for a quick set up.


$13

Multi-band 4G/3G/2G Monopole Antenna

From the Crowd Supply Basics project.

Use one antenna for each of LimeSDR's four channels. Connect each antenna to the LimeSDR using a U.FL-to-SMA cable.

A TG.09 4G/3G/2G cellular hinged SMA(M) mount monopole antenna.


$8

U.FL-to-SMA Cable

From the Crowd Supply Basics project.

Use one cable for each of LimeSDR's four channels. The 100 mm version works well with the Acrylic Case.

A Hirose U.FL to SMA (jack) bulkhead straight connector with a 1.32 mm diameter cable. Less than -2 dB cable insertion loss up to 6 GHz. Both connectors are gold-plated brass and the cable conductor is silver-coated copper.


$169

GPIO Board

This stackable expansion board for the LimeSDR provides individually settable, bi-directional level-shifted I/O for FPGA GPIO 0-7. Each I/O has a high-voltage and power Darlington drive stage suitable for inductive loads, such as coaxial relays. LimeSDR not included.

Credits

Lime Microsystems

Working toward the democratization of wireless communication through an open source ideology.


Jessica Gillingham

Christy Chuang

Ebrahim Bushehri

Andrew Back

Zack Tamosevicius

Richard Jonaitis

Josh Blum

Lexi Hatziharalambous

Karolis Kiela

Andy Chang


ASE Group

IC manufacturer

See Also

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