13 ms·

How fast does it need to be? The cheapest option I can think of offhand is doing Internet via a HAM radio [1]. It's not fast, at all (I think I saw 500 kb/s i

How fast does it need to be? The cheapest option I can think of offhand is doing Internet via a HAM radio [1]. It's not fast, at all (I think I saw 500 kb/s in the article), but they say it's only $80 USD for the hardware, with a 300km range. You just need someone friendly, outside Turkey, within 300km who will let you borrow a bit of their WAN link, or who will let you pay them. [1] https://spectrum.ieee.org/build-a-longdistance-data-network-using-ham-radio https://spectrum.ieee.org/build-a-longdistance-data-network-...

sillysaurusx 5y ago
This is awesome. 300km is beyond the curvature of the earth by a significant margin -- I wonder how it works... Thanks for posting it. EDIT: The hackaday page (https://hackaday.io/project/164092-npr-new-packet-radio https://hackaday.io/project/164092-npr-new-packet-radio) is talking about 10{,0}Mbit as of 2020: > Important firmware update about Ethenet mode configuration 10Mb/s or 100Mb/s, half or full duplex; it can solve a recurrent problem of packet loss and low datarate. Refer to the new version of the "advanced user guide". Many thanks to Kevin M0AHN who discovered the origin of the problem. I wonder if it's possible to get that kind of bandwidth... EDIT2: Apparently you can get up to 500kbps outside of the US (https://elekitsorparts.com/product/npr-70-modem-by-f4hdk-new-packet-radio-over-70cm-band-amateur-radio-packet-radio https://elekitsorparts.com/product/npr-70-modem-by-f4hdk-new...) but within the US, due to regulations, you can only get 65kbps: > Note for USA : Due to CFR 47 Part 97.3 FCC regulations, for the 70cm amateur radio band (restriction to 100kHz and 56kBaud), only the setting “modulation 20” of NPR-70 seems to be legal in USA. Please always check your local amateur-radio regulation before buying and using NPR70. Modulation 20: Symbol Rate 50kS/s, bandwidth 100kHz, raw datarate 100kb/s raw, usable datarate 65kb/s. Still, you can do a lot with 65kb/s. Hmm. Of course, in the US, you probably have cell service. Neat hack though.
- mceachen 5y ago
  > 300km is beyond the curvature of the earth by a significant margin -- I wonder how it works... 70cm is similar(ish) to 2 meter (which can propagate even over oceans): https://en.wikipedia.org/wiki/2-meter_band#Communications_beyond_50_miles https://en.wikipedia.org/wiki/2-meter_band#Communications_be...

sillysaurusx 5y ago

This is awesome. 300km is beyond the curvature of the earth by a significant margin -- I wonder how it works... Thanks for posting it. EDIT: The hackaday page (https://hackaday.io/project/164092-npr-new-packet-radio https://hackaday.io/project/164092-npr-new-packet-radio) is talking about 10{,0}Mbit as of 2020: > Important firmware update about Ethenet mode configuration 10Mb/s or 100Mb/s, half or full duplex; it can solve a recurrent problem of packet loss and low datarate. Refer to the new version of the "advanced user guide". Many thanks to Kevin M0AHN who discovered the origin of the problem. I wonder if it's possible to get that kind of bandwidth... EDIT2: Apparently you can get up to 500kbps outside of the US (https://elekitsorparts.com/product/npr-70-modem-by-f4hdk-new-packet-radio-over-70cm-band-amateur-radio-packet-radio https://elekitsorparts.com/product/npr-70-modem-by-f4hdk-new...) but within the US, due to regulations, you can only get 65kbps: > Note for USA : Due to CFR 47 Part 97.3 FCC regulations, for the 70cm amateur radio band (restriction to 100kHz and 56kBaud), only the setting “modulation 20” of NPR-70 seems to be legal in USA. Please always check your local amateur-radio regulation before buying and using NPR70. Modulation 20: Symbol Rate 50kS/s, bandwidth 100kHz, raw datarate 100kb/s raw, usable datarate 65kb/s. Still, you can do a lot with 65kb/s. Hmm. Of course, in the US, you probably have cell service. Neat hack though.

mceachen 5y ago
> 300km is beyond the curvature of the earth by a significant margin -- I wonder how it works... 70cm is similar(ish) to 2 meter (which can propagate even over oceans): https://en.wikipedia.org/wiki/2-meter_band#Communications_beyond_50_miles https://en.wikipedia.org/wiki/2-meter_band#Communications_be...