Igor,

you forgot to mention that HLR & VLR technology is a *network* artefact, generally to be found in mobile telecommunications networks. The application to the Amateur Radio Service, where there are a large number of stations but *no* over-arching network control is very unclear.

For a public telecommunications network HLRs and VLRs, more accurately their interfaces, are defined by standards developing organisations (SDOs) such as 3GPP, paid for by network operators, and usually developed by network manufacturers. These things are not cheap, and they require continual maintenance and end-of-life replacement!

What did you really have in mind?

Robin, G8DQX


On 08/09/18 20:51, Игорь Ч via wsjt-devel wrote:
Hello Joe and all,
.
Most of questions raised on this subject can be solved via HLR/VLR database server usage, where visitor location register can match to the specific HF band where callsign, frequency, hash of the message being transmitted, protocol and code rate can be stored, callsign hash can be calculated from callsign in the VLR server.
.
73 Igor UA3DJY

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