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From YouTube: AmbaSat board respin meetup
Description
We're moving AmbaSat to 70cm, improving the power supply, advancing the technology readiness level (TRL), and looking at how to use it as a modular component for larger spacecraft. Learn more by joining the mailing list and Slack at https://openresearch.institute "Getting Started".
A
A
So
I
was
just
telling
him
that
the
papers
that
he
sent
me
that's
how
I
got
the
inspiration
for
hp,
100
and
the
teardown.
I
did
go
through
the
teardown,
because
that's
one
of
the
that's
a
really
good
teardown
of
the
entire
circuit.
I
have
been
mia
because
I
have
been
like
I
have
friends
over
and
then
I
have
my
mi,
but
now
I've
taken
five
days
off.
So
my
intention
is
to
work
on
this
whenever
I
have
time
for
my
four
year
old,
so
I
want
to
put
it
so.
A
Seed
is
ready
because
seed-
I
have
been
speaking
to
somebody
and
he's
just
he's,
like
he's
ready
to
do
the
parts
for
us
and
everything
and
we
can
just
copy
him
and
send
him
the
gerbers
and
everything
and
he
he's
like
he
can
do
it
so
once
you
test
it
out,
I
think
they
are
ready
to
do
it
for
us.
So
that's.
B
A
Oh
okay,
cool,
then
I
can
just
talk
to
them
and
then
we
can,
we
can
get
it,
we
can
get
it
together
for
the
433,
I
think,
and
then
the
10
I
will
so
I
I
have
read
through
the
teardown
and
I
have
the
other
paper-
is
what
you
knew,
but
there
are
a
lot
of
so
I
I'll
put
it
together
and
I'll.
Send
it
to
you
and
yes,
I
I
can
use
matlab
matlab
recently
came
out
with
an
rfpcb
toolbox.
A
A
B
A
B
C
A
C
A
C
Yeah,
I
have
the
hb
100
here
the
same
one
in
the
lab
and
I've
seen
so.
I've
kept
kept
up
with
the
with
some
of
the
dashboard
work
from
from
ambisat,
which
is
not
bad,
and
some
of
the
community
work
from
for
for
dashboards
is,
is
arguably
better,
so
I
think
we've
got
decent
visualizations
and
presentations
for
this
yeah.
So
so
I
guess
what
the
the
biggest
thing
for
me
is
to
figure
out.
Do
we
need
any
additional
resources,
or
is
there
anything
in
anybody's
way?
A
C
D
C
We
then
we
can
go
ahead
and
do
that
it's
best
for
a
really
very
short
loop.
You
know
very
tight
loop
prototyping,
that's
kind
of
what
it's
intended
for
down
to
0.2
millimeter
resolution,
which
will
get
you
down
to
5
gigahertz,
pretty
reliably.
I
don't
know
about
10.,
but
you
know
for
for
just
figuring
out
if
it
if
it
is
in
the
ballpark.
C
I
think
that
that
will
that
will
work
and
they
do
have
a
different
front
end
or
the
the
hot
end
for
the
for
the
volterra
that
might
actually
boost
the
the
resolution
up
a
bit,
but
I
haven't,
haven't
gone
and
actually
tested
it
so,
but
honestly,
well,
okay!
So,
given
the
supply
chain
challenges,
even
pcb
material
is
now
short.
So
if
we
did
need
to
fall
back
to
actually
printing
some
circuits
here,
then
we
can
do
that
in
san
diego
and
for
microwave.
C
Actually,
cnc
can
can
do
it
as
well,
and
we
have
two
cncs
that
we
can
use
so
worst
case.
We
can
drill
or-
or
you
know,
grind
or
machine
out
some
some
circuits
if
we
have
to
so,
I
think
we're
in
decent
shape
for
doing
prototyping.
If,
if,
if
the
regular
supply
chains
fall
through,
I
think
we've
seen
that
some
of
those
parts
are
just
not
available
quite
yet.
I
expect
that
that
will
change
in
the
future.
It
might
change
very
quickly.
All
of
a
sudden
we
might
see
a
bunch
more
capacity
or.
B
C
Yeah,
you
know
so
so
low
pass
filter.
Everything
is
probably
the
best
approach.
I
do
have
a
question
for
for
both
of
you
and
for
for
anybody
else.
Listening
so
we're,
I
think
we're
looking
at
some
some
really
quality
upgrades
to
this
particular
project
and
circuit,
and
that's
what
we
set
out
to
do
and
that's
good
there's
been
an
awful
lot
of
questions
about
whether
or
not
we
could
expand
this
to
to
be
an
ordinary
fm
satellite
like
a
fm
repeater
in
space.
C
C
There's
people
that
disagree
with
that,
but
in
general
the
fcc
has
made
it
very
clear
that
the
ism
bans
are
not
what
they
want
to
see
in
space,
and
I
I
personally
I
agree
with
that.
So
moving
to
something
that
does
have
a
satellite
allocation
is
obviously
an
improvement
and
we're
doing
that.
The
the
next
step
is
looking
at
the
size
of
this
particular
payload,
because
it's
very
tiny
and
it's
really
arguable
whether
or
not
the
fcc
would
say
yeah
sure
you
can
put
confetti
in
space.
C
Maybe
is
there
anything
that
we're
doing
that
would
prevent
it
from
being
included
or
integrated
into
a
one
you
and
so
far
I
don't
see
anything,
but
I'm
not.
I
don't
have
the
same
eyeballs
that
you
all
have
and
the
same
you
know
fingers
on
control.
What
we're
looking
at
doing
is
using
this
particular
project
to
to
go
ahead
and
pilot
through
some
some
changes
to
the
regulatory
application
process
for
part
five,
and
also
for
for
amateur
and
for
iae
or
you.
C
C
That's
legal
is
a
total
success,
so
the
things
I'm
bringing
up
should
not
be
interpreted
as
mission
creep,
necessarily
just
that
this
is
in
a
larger
ecosystem
and
it
can
play
a
role
and
if
we
can
hey,
if
we
can
make
it
turn
into
amateur
payload
that
could
get
launched.
That
would
not
be
necessarily
so
tiny.
That
might
be
a
path
forward
to
getting
this
in
leo
now,
the
shorter
term.
C
I
think
that
there's
some
talk
about
some
negotiations
and
some
discussions
about
some
sounding
rocket
tests
and
that's
super
exciting.
That
would
be
extremely
useful
and
I've
I'm
going
to
raise
this.
Let's
see
today's
wednesday,
I'm
going
to
raise
this
on
friday,
there's
a
another
call
with
a
with
a
university,
so
I'm
going
to
ask
if
their
sounding
rocket
might
might
also
be
a
host.
C
So
if
we
can
get
multiple
launches
and
start
testing
things
out,
then
that
would
make
the
eventual
space
licensing-
I
I
believe,
easier
and
more
plausible
yeah
the
size
now
so
we've
removed
the
frequency
objection.
The
band
was
definitely
illegal.
So
now,
looking
at
the
size,
that's
what
I
keep
hearing
as
a
potential
objection.
These
are
informal
objections,
but
I
mean
you
just
have
to
kind
of
look
around
and
see
what
the
fcc
has
done
in
the
past.
C
C
C
C
C
B
B
C
C
C
C
Why
not
go
ahead
and
try
it
as
a
as
a
minimum
viable
product
speed
is
important,
getting
getting
up
and
out
there
and
doing
something.
That's
useful
and
innovative
in
space
and
and
space
worthy,
so
yeah,
but
the
the
odds
are
I
I'm
guessing
my
my
instinct
is
that
that
the
size
is
now
the
biggest
risk
after
I
mean
I
know,
I'm
a
raging
optimist,
so
I'm
assuming
that
all
this
amazing
work
will
work
and
that
the
software
changes
will
be
relatively
straightforward.
C
It
will
be
work,
of
course,
to
to
move
and
test
it
at
70
centimeters,
but
you
know
looking
at
the
the
way
that
it
was
originally
proposed.
It's
really
kind
of
interesting,
looking
at
what
we're
doing
with
the
expanding
the
sensors
to
to
a
beacon
at
microwave.
You
know
these
are.
These
are
good
things
that
rest
on
on
previous
working
code
bases,
so
I'm
assuming
success
on
that
that
we're
we're
moving
in
the
right
direction
and
that
will
achieve
the
goals.
C
The
next
big
worry
is
the
physical
size
of
this
and
the
fcc
going
we're
not
going
to
allow
that
in
space,
because
we
can't
track
it
or
we
won't
admit
that
we
can
track
it
or
we
don't
want
to
encourage
this
size
category,
but
I
think
we
should
go
ahead
and
try
and
wring
it
out,
because
someone
has
to
they
never
came
back
with
an
answer
for
the
original
ambisat
team.
The
or
ambassador
team
has
not
admitted
that
their
application
was
denied
or
accepted.
It's
stalled
under
negotiation,
and
we
don't.
B
B
So
you
know
I
do
we
didn't
change
that
for
the
keycad
version,
it's
still
zero
because
we
didn't
fix
any
solar
panel
problems
or
any
super
capacitors
or
batteries
or
any
of
that
kind
of
stuff.
So
I
think
that's
going
to
be.
You
know
once
we
have
these
in
our
hands
and
we
can
do
some
measurements
and
say:
oh,
we
need
100
bursts
of
125
milliamps.
C
C
B
B
B
It
was
interesting
because
when
I
did
jump
on
the
forums
over
embassad,
I
wasn't
the
only
one
that
had
that
question
and
there
was
a
really
good.
There
was
some
really
good
research
done,
people
were
doing
experiments
and
stuff
and
they
were
really
testing
it
out
and
saying
yeah
there's
a
little
bit
of
an
issue
here.
B
C
B
C
B
On
my
side,
I
think
it's
just
hold
tight
because
the
you
know
the
boards
are
coming
in.
I
have,
I
think
I
have
all
the
parts
that
I
need
to
build
like
five
minus
the
gyros.
You
can't
you
just
can't
get
those.
I
bought
one
eval
board
from
st
from
digikey
and
I'm
gonna
desolder
it
and
solder
it
on
a
board,
but
I'm
not
wow.
I'm
not
gonna
do
that
for
five
boards,
because
that's
just
that's
just
a
little
crazy.
B
So
but
then
you
don't
need
the
gyro
to
do
what
we're
doing
right
and
so
yeah.
So
I
guess
we'll
test
the
boards
and
then
you
guys
tell
me
who
needs
to
get
them
once
I
have
boards
that
are
working
and
then
that
whoever
those
people
are
whether
it's
just
vidyanai
or
if
it's
more.
How
do
you
I'm
sorry?
How
do
you
pronounce
your
name?
Is
it
vidya,
yeah?
B
A
A
B
A
A
B
A
B
A
A
C
Yeah,
that's
probably
a
a
good
sign
about
the
way
things
still
are.
As
of
this
week,
you
know
and
we'll
just
keep
we'll
keep
checking.
The
other
neat
thing
about
this
particular
board
is
that
it
allows
us
to
to
experiment
with
a
kind
of
a
neat
protocol
called
sparrow,
which
is
a
this
is
a
a
covert
communications
example.
This
was
presented
at
the
most
recent
defcon
and
we
have
the
opportunity
to
kind
of
play
around
with
it
with
a
laura
or
laura
wan
part.
I
believe
so.
C
That's
another
neat
thing
that
we
can
do
and
participate
in
is
a
proof
of
concept
or
demonstration
of
covert
communications
leveraging
the
the
broadcast
and
the
setup
call
like
call
setup
or
communication
setup.
So
what
I'll
do
is
I'll
put
out
a
link
to
the
paper
and
the
the
presentation,
the
video
presentation?
So
that's
an
additional
sort
of
neat
thing
that
we
can
do
with
this
this
hardware.
C
C
No,
it's
not
encrypted.
This
is
pretty
good
cool,
so
the
first
four
or
five
steps
of
most
relatively
complicated
communication
services
are
are
usually
you
as
a
as
a
handset,
putting
in
a
bid
to
a
tower
which
is
usually
much
more
powerful
transmitter
sitting
there
in
the
world
and
so
you're
you're
putting
your
bid
in
and
then
it
broadcasts
out
a
reply.
You
get
the
reply
and
you
do
something
with
the
information
and
then
you
transmit
back
to
the
tower
the
tower
then
transmits
back
to
you.
C
A
C
It
will
dutifully
retransmit
the
little
bit
of
information
that
you
have
provided
the
base
station,
and
that
means
that
your
little
tiny
bit
of
data
you
were
talking-
maybe
you
know
kilohertz
or
less
like
not
a
whole
lot,
but
enough
for
humans,
especially
but
the
that
the
system
has
rebroadcast.
Your
bit
of
information
is
if
it
was
a
random
key
or
a
random
blob
to
a
very
wide
area.
So
your
intended
recipient
sitting
out
there
listening
and
knows
you've
told
them:
okay,
well,
my
handset
id
or
channel
id
or
whatever.
C
B
A
C
It's
and
in
lower
wind,
it's
not
fixable
without
some
work
and
in
satellite
community,
it's
not
fixable
without
some
work
and
explaining
it
and
then
making
it
something
that
you
know
in
digital
communications,
because
we
have
to
use
these
back
and
forth
handshakes,
especially
for
anything,
that's
authenticated
and
authorized.
You
have
to
go
back
and
forth
and
do
something
the
more
that
people
know
about
these.
C
These
particular
types
of
things,
the
better,
so
this
hardware
actually
sh
could-
and
I
I
mean
I'm
explaining
all
of
this-
assuming
that
we
do
have
that
the
device
that
the
soc
really
is
is
flexible.
It
seems
like
it
from
working
before
with
the
fosa
sat
and
other
other
programs,
so
it
may,
it
may
actually
freeze
dry.
Everything
in
the
random
bit
may
actually
be
generated
for
us
in
this
particular
soc.
But
if
it's
not,
then
this
would
be
good
hardware.
For,
for
that
particular
teaching
moment.
C
There's
lots
and
lots
of
neat
things
like
this
and
all
the
protocols
that
we
use
and
these
lessons
are
good.
You
know
to
learn
because
then,
when
we
go
to
like
something
like
m17
project,
you
know
a
new
protocol,
anything
like
that.
Then
you,
you
really
have
to
kind
of
look
for.
Okay.
Is
it
vulnerable
to
this
particular
weakness
which
for
m17
or
anything
that's
narrow
band?
C
It
doesn't
matter
as
much
as
a
very
broadband
commercial
or
public
service
thing,
because
then,
if
enough
people
use
a
covert
channel,
then
you
clog
up
the
channel
and
you
can
actually
start
bordering
on
denial
of
service,
for
quote
unquote,
real
calls.
So
anyway,
that's
that's
one
of
the
neat
things
that
we
can
do
with
hardware
like
this.
C
Yes,
it's
basically,
you
know
anytime,
that
you
see
random.
I
guess
the
lesson
here
is
like
any
time
that
you
see
something:
that's
allegedly
random.
A
dice
roll
in
a
protocol
make
sure
that
it's
not
left
up
to
the
handset.
You
know
that
it's
not
left
up
to
a
to
a
designer
or
just
somebody
that
can
program
an
sdr.
You
know
we
now
live
in
the
world
of
sdrs.
C
So
it's
assuming
that
something
is
random.
When
it's
not
is
we
see
this
all
the
time
in
cryptography,
and
we
see
it
here
in
essentially
authentication
authorization
to
establish
a
call.
You
know
who
would
ever
think
that
that
could
be
a
second
covert
channel
so
would
be
really
cool
is
to
use
this
particular
board,
maybe
at
next
defcon
to
to
make
a
badge
or
something
like
that,
since
it's
tiny
to
demonstrate
this
and
to
you
know,
the
covert
channel
could
just
be
a
marketing
channel
for
or
I
or
whatever,.