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I’m a little disappointed that the parts list went like this: - Core i5 computer ($100-$250) - Smart Card reader/writer ($18 for the HID one they used) - opt

by samtho 3y ago

I’m a little disappointed that the parts list went like this: - Core i5 computer ($100-$250) - Smart Card reader/writer ($18 for the HID one they used) - optional 10mhz GPS receiver ($10-$20) - sysmoUSIM-SJS1 (writable SIM card, $1-$3 each) - USRP B200/B210 ($1200-$1900!) Yikes, looking like that’s not happening this weekend. I work as an SA for a large IoT company and I don’t even think I can justify this expense.

seanbrodie 3y ago
You can still run all the software and use virtual eNodeB and UE to simulate the radio comms.
- femto 3y ago
  Look up using the ZeroMQ channel model with srsRAN: chapter 12 of the user manual. https://buildmedia.readthedocs.org/media/pdf/srslte-docs/latest/srslte-docs.pdf https://buildmedia.readthedocs.org/media/pdf/srslte-docs/lat...
voxadam 3y ago
> - USRP B200/B210 ($1200-$1900!) If you think that's bad just wait until you hear what an FCC band license costs.
- samtho 3y ago
  Having worked with many people who have used bands for a short time they were not authorized to and never ended up on the FCC shitlist, I would be okay with a very low power, temporary setup to play with/test something in the GAA band because it’s kind of a free-for-all among those who have a license to this spectrum anyway and being low power means you won’t be interfering with much, if anything. The FCC tends to go after transmitters who are actually disrupting communication and if your signal drops off to the point where ambient noise on the band is louder outside the permitter of your house, you’re not going to get that knock on your door.
zikduruqe 3y ago
It's like one of those woodworking shows on PBS... "Today we are building a picture frame. You need a square, wood, wood glue, and a $15,000 biscuit cutter that you will only use twice in your lifetime."
- racnid 3y ago
  To be fair you can buy a china biscuit cutter on Amazon for 50$.
  - samtho 3y ago
    This is just whataboutism combined with wanton disregard for tool safety/human life
    - racnid 3y ago
      It's identical in design to any number for Makita, Dewalt, or other nicer brands (1k$ from Festool). The point was that it's not a 15K$ tool. It's a 200$ tool for a Dewalt. SMH my head. Yes of course you could buy a bench mount industrial one or something for lots of money.
      - BanazirGalbasi 3y ago
        The design is the same, but are the materials, manufacturing tolerances, and QA the same? That cheaper model is cheaper for a reason. While you're right that most people won't need the $15,000 industrial biscuit cutter, I'd hesitate to use the cheapest model on the shelf.

by samtho 3y ago

seanbrodie 3y ago

You can still run all the software and use virtual eNodeB and UE to simulate the radio comms.

femto 3y ago
Look up using the ZeroMQ channel model with srsRAN: chapter 12 of the user manual. https://buildmedia.readthedocs.org/media/pdf/srslte-docs/latest/srslte-docs.pdf https://buildmedia.readthedocs.org/media/pdf/srslte-docs/lat...

voxadam 3y ago

> - USRP B200/B210 ($1200-$1900!) If you think that's bad just wait until you hear what an FCC band license costs.

samtho 3y ago
Having worked with many people who have used bands for a short time they were not authorized to and never ended up on the FCC shitlist, I would be okay with a very low power, temporary setup to play with/test something in the GAA band because it’s kind of a free-for-all among those who have a license to this spectrum anyway and being low power means you won’t be interfering with much, if anything. The FCC tends to go after transmitters who are actually disrupting communication and if your signal drops off to the point where ambient noise on the band is louder outside the permitter of your house, you’re not going to get that knock on your door.

zikduruqe 3y ago

It's like one of those woodworking shows on PBS... "Today we are building a picture frame. You need a square, wood, wood glue, and a $15,000 biscuit cutter that you will only use twice in your lifetime."

racnid 3y ago
To be fair you can buy a china biscuit cutter on Amazon for 50$.
- samtho 3y ago
  This is just whataboutism combined with wanton disregard for tool safety/human life
  - racnid 3y ago
    It's identical in design to any number for Makita, Dewalt, or other nicer brands (1k$ from Festool). The point was that it's not a 15K$ tool. It's a 200$ tool for a Dewalt. SMH my head. Yes of course you could buy a bench mount industrial one or something for lots of money.
    - BanazirGalbasi 3y ago
      The design is the same, but are the materials, manufacturing tolerances, and QA the same? That cheaper model is cheaper for a reason. While you're right that most people won't need the $15,000 industrial biscuit cutter, I'd hesitate to use the cheapest model on the shelf.