[aprssig] Rocket Tracking
k7rkt at bigredbee.com
Sun Jan 31 17:46:45 EST 2021
The FT3DR does indeed show the packet information on the display, including
On Sun, Jan 31, 2021 at 2:31 PM wa7skg <wa7skg at wa7skg.com> wrote:
> Working on getting more information. Big problem is the Kenwood radios
> have been discontinued and are no longer available. It looks like Yaesu
> is still making the FT3DR, but it doesn't look like it actually displays
> anything usable on the screen, making it of little value for on foot
> Michael WA7SKG
> spam8mybrain via aprssig wrote on 1/31/21 2:07 PM:
> > She should Google for "amateur rocketry" and "tracking". There have been
> > lots of discussion about different ways of getting GPS and telemetry
> > down from a rocket to a chase vehicle. Basically, it should be the same
> > as for a high-altitude balloon launch, just the flight stages will be
> > progressing faster.
> > The issue is that most handheld radios don't have a good way to display
> > the information, even if the radio alone is capable of decoding and
> > interpreting the data without extra hardware. In that respect, the
> > Kenwood TH-D72 and TH-D74 are probably the best bet, as they can decode
> > APRS and display it on the radio screen, with even a
> > direction-to-station vector based on the receiving radio's own GPS fix
> > versus the APRS position report.
> > Of course, this won't work if the rocket is using non-amateur
> > frequencies or not APRS protocol for the data. I actually added support
> > to my APRS client program to support a rocket using an ISM-band radio
> > link to forward the rocket's GPS data as raw NMEA sentences instead of
> > APRS packets.
> > Again, she needs to find out more details about the downlink than just
> > "ham radio".
> > Andrew, KA2DDO
> > author of YAAC ("Yet Another APRS Client")
> > -------- Original message --------
> > From: wa7skg <wa7skg at wa7skg.com>
> > Date: 1/31/21 16:43 (GMT-05:00)
> > To: TAPR APRS Mailing List <aprssig at lists.tapr.org>
> > Subject: [aprssig] Rocket Tracking
> > I recently met a new ham who got her ham license because she is into
> > model rockets. She does the large scale ones that go thousands of feet
> > high. They have tracking and telemetry systems on board. However, she
> > doesn't know what it uses, just that it is ham radio. She wants to get a
> > handheld radio that will track her rocket. I'm going to guess this is
> > APRS. Anybody familiar with this? Any recommendations of what she should
> > get for a radio?
> > Thanks.
> > --
> > 73,
> > Michael WA7SKG
> > "Any day you do not learn one new thing is a wasted day."
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