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Written by K7VE - John Hays
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Tuesday, 09 June 2009 |
While discussing the issues surrounding interconnection of non-DSTAR
(analog - VOIP/ROIP) systems to D-STAR, I have had several people say
"but the ID cannot be translated" between systems.
This has been
brought up in a couple of person to person discussions in just the past
few days. Whether you have such interconnection or not, for the
purposes of the US regulations, this is a "red herring" argument.
ID requirements are for the originating transmitter (Rule 97.119).
It does not have to be relayed, translated, transcribed, etc. It only
has to be copyable on the signal of the original transmitting station.
Practical examples of this are link transmitters on linked repeater
systems, the link transmitter may use a low frequency tone to CWID its
transmitter, but it is filtered out on the link receiver so that it is
not relayed on the next repeater. Anyone monitoring the link
transmitter would be able to extract the ID, meeting the regulatory
requirement, but those on the linked repeater would not. If you have
ever been on a wide area linked repeater system, such as the Evergreen
or Snowbird interties, you will note that you do not normally hear the
IDs of remote repeaters, even though every transmitter (including link
transmitters) must ID. Move this to an analog to D-STAR or D-STAR to
analog relay and the same situation exists, the transmitting stations
must each individually ID; the D-STAR user, the D-STAR repeater, the
analog repeater, any links, and the analog user, but there is no
requirement that those IDs be heard on every transmitter in the circuit.
This message is not advocating the interconnection, it is merely to
point out that the ID argument is not valid. A given gateway operator
may have other reasons for not wishing interconnection, and it is
within their rights to deny it.
Some other countries have the requirement that the receiving station be
able to copy the originating station's identification to engage in a
communication. It is my opinion that this becomes the responsibility
of the station in a country with such a regulation to inform the
station with whom he is communicating of the need for the
identification information, which could be provided a number of ways,
as a courtesy, but the network has no responsibility to automatically
provide that identification. Each station is responsible to follow the
rules and regulations that apply to his individual operation and not
the rules and regulations in another country of which he may or may not
have direct knowledge. |
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Last Updated ( Thursday, 11 June 2009 )
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