Out of curiosity - what is the status of this bird? It shows up in the NASA
orbital info, but not in the Amateur in the SatPC32 tracking selections.
The German Orbital Systems site does not elaborate on some of the details.
particularly if one wished to configure a D-Star rig and try it. With
IC-9700's proliferating I would expect some noise if it is accessible.
Any info or help would be appreciated.
Jack Spitznagel - KD4IZ
Trustee for NR3DT
The Museum Ship USCGC Taney WHEC-37 Amateur Radio Group
As someone new to satellite operations, I’m finding out that it’s
extremely helpful to not only check the AMSAT status page before an
upcoming pass, but also check reports from AMSAT and others on twitter.
That helps to cut down on the confusion around schedule or mode changes.
For example, helps to know that AO-92 was put into L mode an hour before
the next pass you’re planning to work. Just thoughts to myself this
first week or so on the air.
73,
Ben - N6ELF
I tried capturing some of the high-speed data from AO-92 today from the
final 1750Z pass today when the camera was activated. I believe I had some
success, but I am a little confused about what I captured. I did it in two
stages using my phone to capture the raw IQ from my SDR during the pass and
then playing it back on my computer right after into Foxtelem 108z5. The
pass was only 16 degrees at it's peak, but I was able to hear the satellite
down to as little as 6 degrees and Foxtelem reported 24 frames successfully
decoded.
My first point of confusion is I heard QSO what sounded like modem sounds
over the FM downlink intermixed with amateur calls coming through. I assume
that was the high-speed 9600 data mode I was hearing, but this was starting
a few minutes before 1750Z so was the camera mode able to be activated a
little early? Second, is the repeater still active while HS mode is
running? I thought that repeater operation would be disabled to avoid
having voice interfering with the data downlink or is this not an issue?
Last question is, why do I not having anything under the Camera (1D) tab
for AO-92? That tab is completely blank and doesn't seem to have any data
collected. It appears that all frames received are under either the Health
tab or HERCI HK (1D). The recent telemetry for HERCI HK is also all zeros
it seems.
It definitely sounded like there was some high-speed data transfer
happening, something besides the 200 bps DUV signal, but it doesn't look
like I collected anything particular to the Camera operation. Was it not
active during that time or did I just not collect enough frames to assemble
anything?
I still have the original raw IQ capture from the event today.
- Loren
K7IW
Does anyone know of an -bb ‘reader’ application that can be used with amsat-bb?
Back in the usenet days, there were reader clients that could parse entries to make them more human readable. Don’t really care if it’s Linux or MacOS based.
I browsed the amsat.org “mailing lists and services” area and didn’t see any mention -or- is this another one of those things that are well known to those that know them well?
Many thanks.
N6UA, Douglas Tabor
dtabor52(a)gmail.com
A little more info please on the camera mode of AO-92 , Is this just a real time transmission as the satellite is overhead or close by? is it stored and sent continuously for a predetermined time? I had my station on remote all day got nothing here in New Zealand ZL3TCM
*Not to get too far off topic, but this is the kind of thing that an
SDR in orbit could help hunt down. Imagine one of the GOLFs, with is
SDR capability.....*
Yes, with its very own NROL-37, AMSAT could make enough money to put a
lot of satellites in orbit! Speaking of which, I'm sure there's a
recording of the interfering stations *somewhere* already.
KV1J, that would be awesome to test. Even just recording the repeater
output if someone is talking during the pass might allow it to be
correlated with a satellite recording. I was going to try on echolink,
but it looks like the nodes are down. Maybe leave a radio on the input
frequency sometime as well to see if anyone on baofengs shows up.
-Stephen, N8URE
I ran the experiments for 2 passes. 28Apr 1608 UTC and 29Apr 0245 UTC. The
first pass was just a few minutes before it switched to the video mode. The
second pass was high elevation and 11 minutes.
It was mentioned that the interference might be from a 145.110 MHz repeater
due to the 3rd harmonic. Also mentioned were towns heard in the
conversation and that there was a courtesy beep. A repeater in our area
that fits all those items in the N1CON repeater in Concord MA.
For both passes I heard the bird fine and there were ongoing QSOs. During
the passes I transmitted periodically on the repeater announcing my call and
'testing' to cause some audio on the repeater. Also had another station
transmitting on the repeater. Throughout the test I did not hear any
interference on the downlink. So also, I did not listen to the uplink
frequency since there did not seem to be any interference at that time. I
am using different radios for TX and RX, and antennas that are far apart for
the tests.
I'll check from time to time listening to the downlink. If I hear the
interference, I can both check the uplink frequency and also listen to the
local repeaters. There are many in this area.
73, Eric KV1J FN42 (West of Boston MA)
-----Original Message-----
From: Eric Williams [mailto:[email protected]]
Sent: Tuesday, April 28, 2020 11:14 AM
To: 'amsat-bb(a)amsat.org' <amsat-bb(a)amsat.org>
Subject: RE: Repeater interference on AO-92
Yes, I am also listening to the uplink freq. Next pass is in about 1 hour.
73 Eric KV1J
(I use digest mode for this list so pardon the not including the string of
messages)
-----Original Message-----
From: Eric Williams [mailto:[email protected]]
Sent: Tuesday, April 28, 2020 10:51 AM
To: 'amsat-bb(a)amsat.org' <amsat-bb(a)amsat.org>
Subject: RE: Repeater interference on AO-92
I am in the area of a suspected repeater. Also in the area of the towns
mentioned to could be that machine. I'll watch for the next AO-92 pass and
announce my call of the repeater a few times and listen to AO-92. So if you
hear "KV1J" it is me testing for the interference. I have not looked at the
pass schedule yet but I can try a couple passes.
73, Eric KV1J FN42
ARISSNews Release No. 20-03 DaveJordan, AA4KN
ARISSPR
aa4kn(a)amsat.org
FOR IMMEDIATE RELEASE
Duringthe COVID-19 Pandemic, ARISS to Begin Experimental Demonstrations ofSchool Contacts using a Multipoint Telebridge Amateur Radio Approach
April28, 2020—AmateurRadio on the International Space Station (ARISS) is pleased toannounce the first use of a concept called MultipointTelebridge Contact via Amateur Radio,allowing school contacts for Stay-At-Home students and simultaneousreception by families, school faculty and the public.
Duringthe last several weeks, efforts to contain the spread of the COVID-19virus have resulted in massive school closures worldwide. Inaddition, the Stay-At-Home policies invoked by authorities, initiallyshut down opportunities for ARISS school contacts for the nearfuture.
Tocircumvent these challenges and keep students and the public safe,ARISS is introducing the MultipointTelebridge Contact via Amateur Radio concept.First operation of this experimental system will occur during acontact scheduled with a group of Northern Virginia Studentslocated in Woodbridge, VA on Thursday, April 30 at 13:35 UTC (9:35EDT). During this event, an ARISS telebridge radio ground stationwill link to the astronaut on the International Space Station (ISS)ham radio station and each Stay-At-Home student and their teacherwill be individually linked to the telebridge station. Under theteacher’s direction, each student, from their home, takes a turnasking their question of the astronaut.
QuotingARISS Chair Frank Bauer, “Thisapproach is a huge pivot for ARISS, but we feel it is a greatstrategic move for ARISS. In these times of isolation due to thevirus, these ARISS connections provide a fantastic psychologicalboost to students, families, educators and the public. And theycontinue our long-standing efforts to inspire, engage and educatestudent in STEAM subjects and encourage them to pursue STEAMcareers.”
ARISSis inviting the public to view a live stream of the upcoming contactat its new ARISS YouTube Channel: https://youtu.be/Cu8I9ose4Vo.
Duringthe contact, participants will ask as many of the following questionsas time allows:
1.What does the sun look like from outer space?
2.How comfortable is it to sleep in space?
3.What is one thing you want to eat when you get back to earth?
4.I've heard that stars are red, yellow and blue. Can you see thosecolors in space when you look at the stars?
5.Besides your family, what do you miss most while being in space?
6.What are your thoughts on our Covid-19 situation right now? Does theEarth look differently over the last 3 months now that many peopleare inside and not creating pollution?
7.How often do you get to go out of the ISS? Have you been on any spacewalks?
8.Who makes the rocket that takes you to the ISS?
9.What does it feel like to float all the time?
10.Do you use flashlights on space walks?
11.How do you exercise in space?
12.How do you get out for space walks safely without the air from theISS coming out into space? How does it feel to walk in space?
13.What do you wear in the space station?
14.How did it feel when you first got to space?
15.How is space different from Earth?
16.What do you study in school to become an astronaut?
17.What do you like the most about being in space?
18.Were you nervous when you launched into space?
19.How do you communicate with loved ones while you are in space?
AboutARISS:
AmateurRadio on the International Space Station (ARISS) is a cooperativeventure of international amateur radio societies and the spaceagencies that support the International Space Station (ISS). In theUnited States, sponsors are the Radio Amateur Satellite Corporation(AMSAT), the American Radio Relay League (ARRL), the ISS National Laband National Aeronautics and Space Administration (NASA). The primarygoal of ARISS is to promote exploration of science, technology,engineering, and mathematics (STEAM) topics by organizing scheduledcontacts via amateur radio between crew members aboard the ISS andstudents in classrooms or public forms. Before and during these radiocontacts, students, educators, parents, and communities learn aboutspace, space technologies, and amateur radio. For more information,see www.ariss.org
MediaContact:
DaveJordan, AA4KN
ARISSPR
