I'm not sure if this is the right place to ask.

I am trying to build a base station for a TACS (Total Access Communication System) phone, but I have not found any detailed document about it. The most I have found is a channel table and frequencies, but I would need all the details about channel negotiation, signalling and protocols.

It seems that any info about this old technology has been buried. I hope there is someone here that knows something more about it.

Update: 3GPP has told me they have no documentation since it was a pre-ETSI standard.

  • \$\begingroup\$ The info about that old technology was being generated prior to the internet, so it's probably not very searchable for directly. Try asking 3GPP nicely where their archives are. \$\endgroup\$ – Neil_UK Mar 17 '20 at 21:08
  • \$\begingroup\$ You've started with the wikipedia page of course? \$\endgroup\$ – Neil_UK Mar 17 '20 at 22:19
  • \$\begingroup\$ @Neil_UK Yes I have seen the wiki page, but there is no detail about FOCC/FVC and RECC signals \$\endgroup\$ – Alberto Perro Mar 18 '20 at 11:11
  • \$\begingroup\$ One big issue is that those frequencies have most probably been reused for other services and you can no longer use them (and you could probably not have used them without a relevant licence before that). Other than just for fun, is there a specific reason you want to use that? \$\endgroup\$ – jcaron Mar 18 '20 at 13:27
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    \$\begingroup\$ TACS seems to be somewhat related to AMPS, so maybe you can find documentation on that one? Also, searching for "TACS FOCC" on Google yields quite a number of books and other documents which may be relevant. \$\endgroup\$ – jcaron Mar 18 '20 at 13:32

I have found out that the osmocom community have built such project, covering most of the old mobile standards. The project is opensource and can be found at Osmocom Analog Webpage. Documentation for the various network is available as well on this website.


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