Category: Ham Satellite news

AMSAT-SM har nu 800 följare på Twitter. Även om det inte kan jämföras med betalande medlemmar (vi hade som mest runt 430 st) så är det ett bevis på att den internationella gemenskapen fortfarande är stor vad gäller amatörradio och AMSAT.

AMSAT-SMs Twitterkonto handlar enbart om AMSAT och amatörradio. Dock skriver jag ibland även om mina egna amatörradio-projekt då jag ser att det har ett stort intresse bland följarna.

73
Lars SM0TGU
https://twitter.com/amsat_sm
www.amsat.se

Info from ANS no 217:

BRICSAT2 and PSAT2 Designated Navy-OSCAR 103 (NO-103) and Navy-
OSCAR 104 (NO-104)

On June 25, 2019, the United States Naval Academy PSAT2 and BRICSAT2
cubesats were launched on a Falcon Heavy launch vehicle from the
Kennedy Space Center in Florida. PSAT2 and BRICSAT2 were developed by
Naval Academy students in the USNA Satellite Lab and operated in
cooperation with the USNA Amateur Radio Club. PSAT2 carries a PSK31
transponder, digipeater, SSTV-downlinked camera images, and a DTMF to
voice/APRS system. BRICSAT2 carries a digipeater and thruster
experiment. Both satellites are currently active.

At the request of the Naval Academy Amateur Radio Club, AMSAT hereby
designates BRICSAT2 as Navy-OSCAR 103 (NO-103), and PSAT2 as Navy-
OSCAR 104 (NO-104). We congratulate the owners and operators, thank
them for their contribution to the amateur satellite community, and
wish them a long mission and continued success on this and future
projects.

73,

Drew Glasbrenner, KO4MA
AMSAT VP Operations / OSCAR Number Administrator

[ANS thanks AMSAT VP Operations / OSCAR Number Administrator Drew
Glasbrenner, KO4MA, for the above information.]

“Analog transmitters of Fuji No. 3 (FO-29) have been suspended since
July 9, 2019. Currently, we are doing situation grasp and information
gathering, but we will inform you as soon as the situation is
understood.

If you have telemetry data after July 8th (UTC), please send it to the
following address.

[Transmission destination of telemetry data] oper (at) jarl.org

Thank you for your cooperation in collecting information on “Fuji No.
3″ of many users.

JARL Secretariat Member Section Fuji 3 Telemetry Section”

Source: https://www.hamlife.jp/2019/07/17/fo29-jas2-silent/

[ANS thanks hamlife.jp for the above information]

Information from ANS-181:

The Radio Amateur Society of Thailand (RAST) has announced that
JAISAT-1 is scheduled for launch on July 5, 2019 by a Soyuz 2.1
rocket at 05:41 UTC. JAISAT-1 will ride with a Meteor-M N2-2
meteorology satellite along with a total of 34 satellites from
twelve countries.

The telemetry downlink is 435.325 MHz and the telemetry format is
4k8 GMSK Mobitex (CMX990 Mobitex format). The telemetry format is
detailed at https://tinyurl.com/ANS-181-JAISAT-telfmt.

Signals in the same format can be found with the D-STAR ONE Sparrow
and D-STAR ONE iSAT satellites. Information on these satellites and
the decoding software download can be found at

• http://dk3wn.info/blog/satelliten/d-star-one/
• https://www.youtube.com/watch?v=UAjPOJDbHdA
• https://www.youtube.com/watch?v=Rm_NS3Prz9U
• http://uz7.ho.ua/packetradio.htm
• http://www.dk3wn.info/files/dstar_one.zip

All Amateur Radio operators receiving signals from JAISAT-1 are asked
to email data to jaisatonetele@gmail.com. The Radio Amateur Society
of Thailand will have a SWL card to confirm reception.

Also of interest are videos of the satellites’ installation to the
Soyuz fairing at

• https://www.roscosmos.ru/26486/
• https://www.roscosmos.ru/26491/
• https://www.youtube.com/watch?v=klXEGKKTlFs) and
• https://www.youtube.com/watch?v=xcUhJMU4mHA&t=10s

[ANS thanks Tanan Rangseeprom, HS1JAN, JAISAT-1 Project Manager for
the above information.]

This is a summary from ANS-181:

PSAT Successfully Launched on Falcon Heavy STP-2

PSAT2 was successfully Launched at 0630Z on June 25, 2019 on the
Falcon Heavy STP-2 mission into a 28 degree elliptical orbit with
apogee at 860 km and perigee at 300 km. The 28 degree inclination
makes it difficult to work it over most of Europe but the
significant difference in apogee and perigee can make a 15 degree or
so elevation difference on the horizon. When apogee circulates to
be over the northern hemisphere,then more northern stations can
work it. When Perigee is over the
northern hemisphere, it can only be seen in Spain and Italy latitudes
in Europe, and only mid latitudes in the USA.

This changing apogee dynamic will move earlier each day and two weeks
later, will have reversed, and so forth on a monthly cycle or so.
Another interesting thing about the orbit is that it is almost time
synchronous; meaning that a pass will occur almost the same time
every day (though five minutes earlier). But then an earlier orbit
will appear an hour and a half earlier every other day. This makes
it very easy to do mobile/portable operations without any computer
once you hear one pass.