Electronics > RF, Microwave, Ham Radio
LimeSDR: Flexible, Next-generation, Open Source Software Defined Radio
Abdu:
Hackaday
"What makes LimeSDR interesting is that it is using Snappy Ubuntu Core as a sort of app store. Developers can make code available, and end-users can easily download and install that code."
Electronics Weekly
"Crowd-funding changing the game for chip firms"
Microwave Journal
"Learn and test new communications techniques, unleash new applications and open up new markets using the powerful LimeSDR platform"
Electronic Engineering Journal
"...a low cost, app-enabled software defined radio (SDR) base station that can be programmed to support any type of wireless standard – putting significant power at the disposal of anyone who wants to innovate in the world of wireless"
EE Times - Europe
"Lime Microsystems have built a wide range of open source support tools and resources...from the outset"
Wireless - Electronic Specifier
"Create and deploy wireless network infrastructure almost anywhere at a fraction of today’s costs"
Features & Specifications
RF Transceiver: Lime Microsystems LMS7002M MIMO FPRF (Datasheet)
FPGA: Altera Cyclone IV EP4CE40F23 - also compatible with EP4CE30F23
Memory: 256 MBytes DDR2 SDRAM
USB 3.0 controller: Cypress USB 3.0 CYUSB3014-BZXC
Oscillator: Rakon RPT7050A @30.72MHz (Datasheet)
Continuous frequency range: 100 kHz – 3.8 GHz
Bandwidth: 61.44 MHz
RF connection: 10 U.FL connectors (6 RX, 4 TX)
Power Output (CW): up to 10 dBm
Multiplexing: 2x2 MIMO
Power: micro USB connector or optional external power supply
Status indicators: programmable LEDs
Dimensions: 100 mm x 60 mm
Block Diagram
Comparisons
HackRF One Ettus B200 Ettus B210 BladeRF x40 RTL-SDR LimeSDR
Frequency Range 1MHz-6GHz 70MHz-6GHz 70MHz-6GHz 300MHz-3.8GHz 22MHz-2.2GHz 100kHz-3.8GHz
RF Bandwidth 20MHz 61.44MHz 61.44MHz 40MHz 3.2MHz 61.44MHz
Sample Depth 8 bits 12 bits 12 bits 12 bits 8 bits 12 bits
Sample Rate 20MSPS 61.44MSPS 61.44MSPS 40MSPS 3.2MSPS 61.44MSPS (Limited by USB 3.0 data rate)
Transmitter Channels 1 1 2 1 0 2
Receivers 1 1 2 1 1 2
Duplex Half Full Full Full N/A Full
Interface USB 2.0 USB 3.0 USB 3.0 USB 3.0 USB 2.0 USB 3.0
Programmable Logic Gates 64 macrocell CPLD 75k 100k 40k (115k avail) N/A 40k
Chipset MAX5864, MAX2837, RFFC5072 AD9364 AD9361 LMS6002M RTL2832U LMS7002M
Open Source Full Schematic, Firmware Schematic, Firmware Schematic, Firmware No Full
Oscillator Precision +/-20ppm +/-2ppm +/-2ppm +/-1ppm ? +/-1ppm initial, +/-4ppm stable
Transmit Power -10dBm+ (15dBm @ 2.4GHz) 10dBm+ 10dBm+ 6dBm N/A 0 to 10dBm (depending on frequency)
Price $299 $686 $1,119 $420 ($650) ~$10 $299 ($199 early bird)
arekm:
Almost finished -> https://www.crowdsupply.com/lime-micro/limesdr
Close but still needs 50 k$.
matseng:
Yesterday there was two pledges at the $99,000 -level, today there's only one. I guess both of them are either fake or shills....
rwgast_lowlevellogicdesin:
Im not sure how much it matters here but may be relevant if this is fake. A while ago I was looking for some kind of broadband receiver chips for SDR and I came across either a company or a chip called lime. This by far was the best chip out there I could find... it was 16 bits I think had a ton of bandwidth range along with a nice IF bandwidth 20 or 30mhz I think, AND 2x MIMO. Anyways I e-mailed these guys and explained that I wanted to use there chip in an SDR I asked for a sample but also told them I had no problem buying a few of them.
Anyways I never received an e-mail back from the company, I cant even remember how I found these lime chips to begin with, but they looked to good to be true.
Kind of off but I know the airspy uses the realtek r280t2 chips found in dongles, how does one wanting to get an SDR get access to chips like this? Air spy has shown that the realtek stuff makes a good SDR if you ditch the controller chips and add a nice transverter. The USRP and HackRF are the only broadband usb SDR's that use chips you can actually buy. Well maybe the funcube does but I haven't looked much in to the funcube considering its crappy IF bandwidth, id assume its an audio codec. Being a home brewer and consultant I have no idea how this businesses stuff work when it comes to trying to prototype with a chip that you cant just buy of digikey or at least sample/buy from the manufacturer like realtek, broadcom, and lime.
PA0PBZ:
--- Quote from: rwgast_lowlevellogicdesin on June 21, 2016, 04:24:18 pm ---Im not sure how much it matters here but may be relevant if this is fake. A while ago I was looking for some kind of broadband receiver chips for SDR and I came across either a company or a chip called lime. This by far was the best chip out there I could find... it was 16 bits I think had a ton of bandwidth range along with a nice IF bandwidth 20 or 30mhz I think, AND 2x MIMO. Anyways I e-mailed these guys and explained that I wanted to use there chip in an SDR I asked for a sample but also told them I had no problem buying a few of them.
--- End quote ---
http://www.digikey.nl/product-search/en?mpart=LMS6002DFN
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