[WARC] D-Star

[Leslie Hittner]

Feed line losses are high in 1296. I would suggest that we approach the cit=
y about placing a site at their new Wincrest water tower. I believe we coul=
d locate the equipment in a cabinet near the top of the tower - perhaps ins=
ide the pedestal. =


The tower is new. The climb is inside (steps or ladder I do not know) excep=
t for the last thirty feet from the pedestal to the catwalk around the base=
 of the tank and then to the top of the tank.

It's at least as high as the old one and maybe even higher (I need to get a=
 ways away from it to compare).

Another option would be the Charter tower, although feedline length would b=
e an issue and I wouldn't want to have to work in a cabinet at the top of T=
HAT tower!!!

I also think that a 1296 antenna would not be very omni directional if side=
-mounted on a tower. We need to get to the top...

We could tie KAGE and the water tower site by 10 GHz. I'd wager there is a =
chance that the direction from the water tank towards KAGE would be a good =
angle to continue right on up river towards Wabasha and the metro (It might=
 be angled too much to the north but maybe we can create a side lobe.)

There are no antennas on the tower so far!!!!!

-Les


  ----- Original Message ----- =

  From: Erik Brom =

  To: Winona Amateur Radio Club general discussion =

  Sent: Sunday, August 24, 2008 9:46 PM
  Subject: Re: [WARC] D-Star


  Good point on having everything at one site.  Its convenient, though, bec=
ause its a nice site where we could get the antenna up high.


  At 09:39 PM 08/24/08, you wrote:

    I wonder about putting all our eggs into one "KAGE" basket. If we lose =
the KAGE site, we would then lose all of our infrastructure. Seems a bit fr=
agile to me, if a storm takes down that tower. I think the digital and anal=
og infrastructures should be independent and should be linked only through =
the internet or the "ether."
     =

    I think we can develop our own server software. It's our call as to whe=
ther we use what ICOM has to offer. There doesn't seem to be the same licen=
sing issue...That is, if we want to write our own we can do so in accordanc=
e with the D-Star specification. I don't know what routines are available f=
rom ICOM and what or how we might duplicate them. Those are questions that =
we might want to answer, however.
     =

    Then it might simply be a case of where we want to invest our time rath=
er than what legal constraints there might be.
     =

    -Les
     =


      ----- Original Message ----- =


      From: Erik Brom =


      To: warc at lists.w0ne.org =


      Sent: Saturday, August 23, 2008 10:12 PM

      Subject: [WARC] D-Star


      After Les's presentation Thursday, and remembering back to an early D=
-Star ad, I wondered if we could put a 1296 D-Star digital node at the KAGE=
 site, and then interconnect it with D-Star Analog repeater modules (which =
I thought I remembered seeing).   So we could continue to run our existing =
FM systems, but interconnect them with the digital network.


      Doing some surfing now, I was unable to turn up any D-Star analog rep=
eater hardware, so its apparently not possible.


      I came across some other things though, such as references to proprie=
tary software available (only) from Icom, the codec issue of course, and a =
single central server system that manages the linking between systems.  =



      All of this really bothers me, as not being "The Amateur Way".  It so=
unds to me more like we are buying a commercial system from a single manufa=
cturer.  Contrast this to APRS.  The *protocol* is published, and there are=
 a bunch of manufactures of hardware and software that support it, and lots=
 of ways hams can set up new ways of using it.  =



      Although the technology and capabilities of D-star sound cool, someth=
ing just isn't sitting right with me.  Am I right or wrong?  Can someone gi=
ve me a better "warm & fuzzy" feeling about this?


      Erik


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