On 08/10/2010 10:25 PM, Jeff Pyle wrote:
Hello,
Driving around town yesterday day I happened to hear a JA7 station
calling "CQ Cleveland, CQ Cleveland..." I thought this was in
response to my "KG8IU listening, Cleveland Ohio" call about a minute
before. Perhaps he heard the "Cleveland" but not the call sign,
something like that. Anyway, the local WB8THD C node is normally
linked to REF001C, so while certainly interesting, DX wasn't unheard
of. Over the next 10 minutes or so I heard him a few more times. It
seemed like he wasn't hearing my replies.
So I had a thought. Perhaps he wasn't on the reflector, but he was
routing to /WB8THDC. "CQ Cleveland" would make a lot more sense in
that case. I've had an 880 for near two months now but until
yesterday I hadn't had need of the RX>CS key. I tried it, verified
his callsign was in the UR field, and called him back. This time he
heard me, and we had a nice QSO.
Sounds like he was on a transceiver in that case, or just a coincidence
if he was on a dongle and your earlier attempts were not heard due to
stream collisions, a common event on dstar hence the ¨dstar black hole¨
ops speak of.
I didn't think to check the RPT1 and RPT2 fields. I imagine RPT1 was
still my normal "WB8THD C", but what of RPT2? In all the domestic
examples I've seen, this is set to the ".. G" callsign. Is that
appropriate for basic callsign routing as well? Or, was there likely
something more specific to him? I do know he was on a dongle.
If he was on a DV Dongle, he cant have been callsign routing, only
possible on a dstar transceiver, a DV Dongle only utilises cqcqcq in a
urcall inication.
Yes RPT2 set to WB8THD G was required for callsign routing or dplus
linked transmissions to occur
via the gateway gateway internet connection. If that is not enabled then
only local repeater transmission occurs.
Now, the main question. It is my understanding that in a dplus-style
reflector link anything that hits the local port is also linked to the
reflector. If that's the case, did the JA7 station's "CQ Cleveland"
calls make it into the reflector?
If he was on a Dv dongle yes as that´s the way he is connected via a
dplus udp port.
Not all incoming repeater callsign routed calls transfer to dplus links,
they used too in the past, but I
think that was stopped in newer versions of dplus on the gateway machines.
Depends on the software configuration used.
Did my transmissions after I hit the RX>CS key? If so, perhaps
someone heard it. I think it was during the 9 o'clock hour EDT.
He did make a comment that many North American stations "don't know
how to contact Japanese station". I can conclude only that we simply
don't use callsign routing much, so we don't know how to answer
Japanese stations that do. In his short message he did have something
to the effect of "CAPTURE CALLSIGN..", something he mentioned in his
audio as well. It took me a bit to come up with what that might
translate to, but I think RX>CS was the key.
Sure sounds like he was using a transceiver here, did you see
JA7xxx/dngl on your screen?That should confirm he was on a dv dongle,
otherwise no-one would use that type on message on a DV Dongle
that had a reasonable idea how it worked, you cannot one touch a DV
Dongle, its pure dplus link udp connection or direct connection to your
repeater gateway dplus udp port.
vk4tux
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