As such I haven't seen any changes occur at slashdot since the take over. I've only seen the slow, steady decline of slashdot continue. Which is unfortunate because every once and a while you see the low UID people make some stellar comments and it reminds me why I stick around despite vastly superior alternatives like hackernews.
Seriously, that was an utterly unnecessary comment.
In theory one can be transmitting on licensed spectrum inside the home without permits, but I suppose the telcos never envisioned a "3rd party femtocell" that wasn't connected to their services. So I imagine they were faced with drowning under deluge of telco lawyers.
Still, that was a brilliant idea. I think the product was eventually pivoted to shipboard applications. But, with unlimited voice calls on many plans, a roam-to-voip home base station holds less appeal.
Other business models include intelligence and communications interception.
Here's the link to the first part: http://umtrx.org/journey-to-gsm-part-1-introduction/
I'm a little fuzzy on cell bands but I thought they were all restricted(lots of ham gear has cell bands explicitly locked out).
Also only the downlink is done over unlicenced bands. There's a competing standard that does uplink and downlink, but the all just augment a licenced LTE connection.
Setting up a base station at elk camp and being able to use a regular cell phone instead of a dedicated amatuer or FRS/GMRS transceiver would be very cool.
All Our Shared Spectrum Are Belong to Us [32c3]
Unfortunately that's not true in implementation because LTE-U doesn't know or care about the wifi channel announce timings. By piping up whenever it wants to wifi throughput actually degrades more than 70% at minimum LTE-U duty cycle spec (50%) and up to almost completely, ~99% reduction, at max allowed LTE-U duty cycle (90%) spec.
No matter what they say this is a spectrum grab and LTE-U will degrade 5 GHz wifi to the point of being unusable.
I was just wondering if there's spectrum allocated for experimentation or if you'd be stepping on FCC rules by putting this into practice.
Bands 30 and 40 actually exist entirely within the amateur 33cm band, band 42 overlaps with 9cm, and band 46 overlaps with 5cm. Two of those also overlap with unlicensed spectrum, so there's extra room to play in that no one reasonable expects those bands to be clean anywhere people have electronics.
If you have cooperative endpoint devices you could also bodge other more common LTE bands in to amateur frequencies. Band 31 is just a 20 MHz drop away from fitting in 70cm, and cutting down the duplex spacing could make part of band 8 usable in region 2.
If you want commercial hardware to work it's probably best to stick to the first group, but if you're doing SDR on both sides and just want to experiment the second group should technically work.
Climbing and diving are easily lethal if you don't command your equipment appropriately. Would you recommend someone interested in practicing them to not even try?
Nonetheless, the point you make is important. Having said that, giving advise on how to avoid the dangers is what I think to be optimal.
Recommend moving the project.