[ANNOUNCE] UmTRX sales start on the Hardware Freedom Day

GNU Radio
1

Dear all,

(I’m sorry for cross-posting to several mailing lists, but it really
belongs to all of them. Please respond only to a mailing list you’re
subscribed to.)

UmTRX sales start

It’s the Hardware Freedom Day and we’re starting sales of UmTRX to
celebrate it! Now you could order it directly from Fairwaves web-shop
[1],

UmTRX is a completely open-source hardware SDR transceiver designed
for professional/industrial applications. We designed it for use with
OpenBTS software [2], but it also works well with OsmoBTS/OpenBSC [3].

UmTRX uses a UHD [4] with only minor changes to interact with a host
and thus works well with GnuRadio and other applications based on UHD.

  1. http://shop.fairwaves.ru/
  2. Google Code Archive - Long-term storage for Google Code Project Hosting.
  3. http://openbsc.osmocom.org/trac/wiki/OsmoBTS
  4. GitHub - fairwaves/UHD-Fairwaves: Fairwaves version of the UHD drivers, tweaked to support Fairwaves UmTRX.

Technical details

UmTRX is an SDR transceiver inspired by USRP N series. If you worked
with USRP N you will find it familiar, but there are significant
differences which are described below as well.

  • Single board with an integrated RF part.
  • Optimized for industrial use and high MTBF.
  • 1GbE Ethernet connectivity to a computer.
  • Two full-duplex RF channels (side “A” and “B” in UHD).
  • Single chip transceivers LMS6002D are used for AD/DA and RF
    processing (300MHz to 3.8GHz)
  • Stable reference clocks:
    • 26MHz TCXO (integer multiple of GSM sample rate) with 100ppb
      frequency stability.
    • DAC for TCXO frequency fine tuning.
    • Integrated GPS module for automatic TCXO frequency stabilization.
    • External clock source is possible.
  • Thermal sensors for temperature based calibration.
  • 100mW @ 900MHz, 50mW @ 1800MHz RF output power.
  • 8-28V DC input power supply.
  • Spartan 6 LX75 FPGA.

PS Big thank you to Lime Microsystems for their excellent support of
open-source users! Check out their chips if you’re planning to develop
and SDR system.

GSM specific info

UmTRX was designed to be easy to use to use with OpenBTS and OsmoBTS.
So far it’s the easiest way to get them up and running in your lab.

  • Quad-band support without any changes
  • 100-200m coverage (with an external duplexer and a small omni
    antenna).

  • 2km coverage with an external 2W GSM repeater and a patch antenna

  • Two independent TRXs (*).
  • Single-ARFCN and Multi-ARFCN support.

(*) OpenBTS doesn’t support the second channel on UmTRX yet. We’re
working to implement this and plan to release this soon.

I also want to say thank you to our beta testers who received earlier
versions of UmTRX. Some of them even blogged about their experience :slight_smile:
http://blog.shimaore.net/2013/03/umtrx.html
http://genesysguru.com/blog/blog/2013/03/23/umtrx-is-alive-again/

UmTRX package contents

  • UmTRXv2.1, flashed and ready to use.
  • Power supply, 12V/30W - http://www.phihong.com/assets/pdf/PSAC30U.pdf
  • U.FL-to-SMA-F pigtail cables.
  • Two small GSM antennas - one for Tx and one for Rx.
  • An active GPS antenna.
  • Thermal pads.

Note 1: The power supply comes without a 220V power cord. Make sure to
prepare one before you receive the UmTRX to be able to power it on
immediately. :wink:

Note 2: You’ll need a heatsink or a fan to prevent UmTRX from
overheating during long continuous operation. We provide thermal pads,
but you have to find a heatsink by yourself. HDD heatsinks are good
options, because UmTRX has almost the same size as an HDD.

–
Regards,
Alexander C…
CEO, Fairwaves LLC / ООО УмРадио