Re: [DVDongle] Reflector bug?
- At 07:48 AM 7/27/2008, you wrote:
>Personally, I've spent a number of commutes talking on REF001C andI had noticed odd things like that seemed to happen when on the SE WX
>folks there have taken to calling the number of things that can make
>transmissions just "disappear" the "Reflector black hole". I wouldn't
>recommend Reflector links for real emergency or critical
net. Couldn't work out what was going on, but this thread seems to
be shedding some light on the situation
>communications at this point in time, but I doubt Robin would either?Well, all of our Internet based options are digital at the reflector. :-)
>Due to the nature of digital, they just don't "act the same" as other
>linking technologies yet.
>(At least in callsign routing/multicast, the user gets some feedbackMaybe, if one is able to look at the display quick enough - often the
>on their display as to whether or not they routed and were heard...
repeater ID trashes the more useful response from the remote gateway.
>"RPT" vs. "UR". I've been talking on Reflectors on D-STAR for a whileI've heard that too, though sometimes other stations hear it, and I
>now, and it's really common for a whole transmission to just disappear
>in a normal QSO. While I know in my head what's happening is
don't on the Dongle.
>doubling, radios spitting out GPS data beacons, etc... and there areI haven't done much ragchewing on reflectors, mostly controlled nets,
>good technical reasons why this happens, I can't get used to it...
>having someone call you and say "Are you still there?" every five to
>seven overs, is getting kinda annoying.)
so I haven't had to deal with that so much at this stage. That would
be a bit annoying, though I get that a lot on IRLP and Echolink as
well, so I'd probably notice it less anyway. The reasons on IRLP and
Echolink range from someone doubling, to rubber ears, to accent
problems, or simply the other fool deciding to wander away from their
PC or radio! As I don't expect D-STAR users to be that much
different, I would expect the same strike rate. ;)
>Doubling is not handled well either... not sure it can be, thinkingOr perhaps it just needs to buffer the header and slap it on at the
>over what's really happening... but perhaps a very smart Reflector
>would buffer both transmissions, and/or generate a header and fake a
>new transmission that's actually a remainder of the longest
>transmission's stream, if two people double.
start of the remainder of the longer transmission?
>But it's not there yet... It's very hard to tell when someoneThe subchannel thing sounds weird.
>doubles or this "both sub-channels are in use" thing happens.
>NOT complaining about Robin's code... just saying there's not muchWell, this raises the counter argument that maybe the risk of
>anyone else can do about it. Robin already mentioned that some wack-
>job convinced him not to open-source the Reflector code because of
>concern that "terrorists" might read it in his Dayton presentation...
>so I doubt that's going to change. (Emotion trumps reality... there
>are plenty of other ways to break the entire D-STAR network without
>resorting to reading Robin's Reflector source code.)
terrorists reading Robin's code and doing something nasty with it is
less than the potential benefits of having more "friend;y eyes" looking at it?
The AllStar guys obviously aren't too worried about this issue
(Asterisk, which AllStar uses, is open source), not to mention the
various organisations that use Asterisk for their telephony needs.
73 de VK3JED