LimeSDR end of life :-(

[Hamish Barker]

I had an order in for a LimeSDR, the lowest cost coherent 2 receiver channel SDR, but it was taking so long I cancelled (production dates kept getting shifted back. Well now they have just announced that it is end of life, so they won't be producing any.

Hopefully another manufacturer will bring a multi channel coherent SDR to market (at a lower cost than the Ettus products).

https://www.crowdsupply.com/lime-micro/limesdr/updates/end-of-life-announcement

Cheers,

Hamish

[Anthony]

Hamish, I thought you ordered a KrakenSDR?

https://www.crowdsupply.com/krakenrf/krakensdr/updates/manufacturing-update

I've been waiting for mine since last October 2021 and the delivery date of March 31,2022 has been pushed back to May 31, 2022 which has come and gone. 

So far it still looks like that date doesn't have any shipping issues.

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[fasleitung3]

I was looking into the availabilty of the Lime SDR a few weeks back in the context of a university project. At that time the announced shipping date from crowd supply was September. I contacted Lime directly and they advised me that they were hopeful to meet that date. Since this was not meeting the time requirements of the project I asked what could be done. Obvioulsy they have a few around so they offered two units, however at a very steep price. So this was not an option either.

Given the announcement from crowd supply now it seems that component availabilty has been pushed back again, so no production run seems possible anytime soon.

Besides the Ettus products one could think of the BladeRF https://www.nuand.com/bladerf-2-0-micro/ . I have no experiece with it but I am looking into it for our project.

Best regards,

Wolfgang

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[Hamish Barker]

I did but decided that the amount of software I would have to develop to use its 5 channels was probably going to be more than i could do in available spare time, so I cancelled it also. Happy with just running 2x rtlsdr dishes in back to back adding interferometer (like phase-switched, as described in the ccera paper) mode, plus I have a hackrf sdr and 10mhz gps disciplined oscillator waiting for me to build an antenna for pulsar detection.  with a full time job, and doing astronomical spectroscopy, and telescope making, it was too much!

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[Anthony]

I totally understand, time is so precious especially when we are still working!

I'm looking forward to when you're able to complete your projects and publish the work. I guess it's time for me to grab a cup of coffee and head to work. 😉

Have a great day, Hamish!

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[Alex P]

Are you aware there is a new 2 channel system being offered ?

https://www.crowdsupply.com/lime-micro/limesdr-mini-2

LimeSDR Mini 2.0 is an upgraded, drop-in replacement for LimeSDR Mini, a hardware platform for developing and prototyping high-performance and logic-intensive digital and RF designs that use an FPGA coupled with Lime Microsystems’ LMS7002M RF transceiver.

Alex

[fasleitung3]

Unfortunately the mini-2 has just one receive channel in contrast to the original Lime SDR which had two.

Wolfgang

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[Marcus D. Leech]

On 2022-06-09 09:07, 'fasleitung3' via Society of Amateur Radio Astronomers wrote:

Unfortunately the mini-2 has just one receive channel in contrast to the original Lime SDR which had two.

Wolfgang

So for "easy" phase-coherence, we're now down to BladeRF 2.0 and USRP B210  (at price scales that are at least first-order manageable).

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[djl]

4-channel Kerberos???

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[Marcus D. Leech]

On 2022-06-09 21:01, djl wrote:

4-channel Kerberos???

That doesn't count as "easy phase coherence".  There's a massive amount of "farting around" that has to be done
  "under the covers" to make the Kerberos (and the newer 5 channel variant) work with generic software like
  Gnu Radio. They really are only addressing their main application, which is direction finding.  I think they're
  doing a poor job of integration with other software "out there", and I'm unwilling to devote my time to helping
  them.  I just don't have the personal bandwidth.

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[Leif Johansson]

This recently caught my eye:

https://www.crowdsupply.com/cariboulabs/cariboulite-rpi-hat

It almost sounds like the two channels are configurable to be Rx/Tx (but that may be wishful thinking on my part)

Cheers Leif

[Hamish Barker]

yes I saw that one, but looked pretty expensive for what it is. HackRF has a bigger bandwidth, so I bought one with the intention to use it for pulsar detection.

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