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8451Re: [tracker2] Development build > decoding

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  • Scott Miller
    Sep 2, 2009
    • 0 Attachment
      I'm not saying it'll solve everything, but it does help.

      Scott

      Mike Zwingl oe3mzc wrote:
      >
      >
      > Scott,
      > will this build also fix the problems we have with several OT2m,
      > that do have severe problems with receive, even though the capacitor in
      > the deemphasis filter is correct?
      >
      > tnx
      > Mike
      > oe3mzc
      >
      >
      > ----- Original Message -----
      > *From:* Mark Cheavens <mailto:mcheavens@...>
      > *To:* tracker2@yahoogroups.com <mailto:tracker2@yahoogroups.com>
      > *Sent:* Wednesday, September 02, 2009 8:34 PM
      > *Subject:* Re: [tracker2] Development build > decoding
      >
      >
      >
      > From a Nuvi send a message to: --ver
      >
      > Mark
      > KC5EVE
      > At 11:43 AM 9/2/2009, you wrote:
      >
      >>
      >>
      >> Cool! Now I have to go ask my T2-135 v1.2 boards what firmware
      >> I've got
      >> in them! I remember now seeing that posting from Scott about the
      >> timing
      >> recovery, but I didn't connect it back to my own boards. Thanks
      >> for the
      >> update (to you and Scott).
      >>
      >> Lynn (D) - KJ4ERJ - (T2-135s as -9 and -14)
      >>
      >> Mark Cheavens wrote:
      >> >
      >> >
      >> > There are actually two improvements for the T2-135. The first
      >> was on
      >> > the version2 board a de-emphasis filter was added. (I keep
      >> meaning to
      >> > order one).
      >> >
      >> > The second was hidden (In plain view:) ) in one of Scott's
      >> > announcements that he made some timing changes to improve decode
      >> > performance.
      >> >
      >> > (Remember I am talking about the T2-135 DECODING - Not other
      >> stations
      >> > decoding me).
      >> >
      >> > Mark
      >> > KC5EVE
      >> > At 10:08 AM 9/2/2009, you wrote:
      >> >>
      >> >>
      >> >> I'm not sure how the latest build would have improved
      >> reception, but if
      >> >> anyone else is as curious as I was, I've generated coverage
      >> maps for
      >> >> KC5EVE for his travels on the 29th and 30th. You can see them at:
      >> >>
      >> >> http://ldeffenb.dnsalias.net.nyud.net/Tracking/Requests/KC5EVE*
      >> <http://ldeffenb.dnsalias.net.nyud.net/Tracking/Requests/KC5EVE*>
      >> >>
      >> >> There are a few holes along the route, but when it had
      >> coverage, it had
      >> >> nice coverage!
      >> >>
      >> >> Lynn (D) - KJ4ERJ - APRS Infrastructure Visualization
      >> >>
      >> >> Mark Cheavens wrote:
      >> >> > On one of my "to do" lists has been to update the firmware in my
      >> >> > T2-135 to the "latest development build" (June 09) for a while.
      >> >> >
      >> >> > I finally got around to it AFTER a long trip (4k miles). The
      >> trip was
      >> >> > frustrating at how FEW packets got decoded. (displayed on the
      >> Nuvi)
      >> >> >
      >> >> > From my initial testing last night and this morning, all I
      >> can say
      >> >> > is WOW!!!! What an improvement! My normal drive before would
      >> result
      >> >> > in about 10% of the packets being decode and displayed, Now it
      >> >> > appears to be near 100%.
      >> >> >
      >> >> > (Now if we can just get timestamp of when the packet arrived
      >> into the
      >> >> > Nuvi............)
      >> >> >
      >> >> > As usual, great work Scott!
      >> >> >
      >> >> > Mark
      >> >> > KC5EVE
      >> >> >
      >> >>
      >> >
      >> >
      >> >
      >>
      >
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