►
From YouTube: Open Research Institute Office Hours for 7 January 2021
Description
Open Research Institute Office Hours for 7 January 2021
Project discussion and Question and Answer
0:10 Taxes, US Form 990, and things generally on track
1:50 Default Digital Downlink, Beacons, and keeping it simple
12:35 10/24 GHz dual-band feed update and test plan
18:27 Additional Link Budget in excel and potential port of this budget to Jupyter Notebooks
24:17 Remote Labs update and access method discussion, including mosh.org, VISA, and what's next.
Thank you to all participants and enthusiasts! Find out more at https://openresearch.institute
A
One
of
the
organizational
updates
is
that
this
year
we
will
get
to
fill
out
the
full
990
form
and
our
fiscal
year
end
ended
on
december
31st.
We
have
until
mid-may
to
complete
the
990..
The
good
news
is
that
we
have
several
people
that
have
some
experience
in
filling
out
this
form
and
we
should
be
able
to
do
it
well
before
may
2021.
A
We
have
some
some
guidance
and
some
information
from
foundation
group
they're
offering
to
to
help
and
the
cal
nonprofits
501c3
that
helps
501c3s
in
california
also
has
some
helpful
checklists.
So
we
should
be
able
to
do
this
without
too
much
trouble
and
that's
that
for
for
taxes,
there's
a
few
other
forms
that
are
biannual,
that
we
filled
out
last
year
and
I'm
just
going
to
go
through
the
entire
checklist
to
make
sure
that
nothing
got
missed
or
or
that
we
don't
have
any
annual
things
that
need
to
be
done.
We're
not.
A
Yeah
we
have
to
file,
and
the
the
990
that
we've
filed
so
far
has
been
the
postcard,
which
is
honestly
a
postcard,
and
it's
it's
very
very
brief.
So
if
you're,
if
your
assets
are
less
than
I
believe
it's
50
000,
then
you're
you
file
the
postcard
and
it
could
not
be
any
easier
and
the
990
is
a
little
more
extensive.
So
there's
a
different
categories
and
tracking
and
additional
paperwork
that
needs
to
be
done.
A
A
In
order
to
test
the
the
channel
to
test
people's
receivers
on
the
ground,
but
also
can
be
deployed
as
a
terrestrial
beacon
in
any
number
of
microwave
bands,
so
when
we
started
talking
about
beacons,
there
were
some
questions,
so
douglas
quagliana
asked
about
beacons,
and
these
he
says
his
suggestions
are
a
simple
beacon.
The
simplest
possible
be
included,
so
not
just
the
mod
cods
for
dbbs2
and
s2x,
but
something
like
the
iaru
beacon
style
and
he
says
getting
beyond
this
very
basic.
A
Is
this
thing
actually
on
like
a
constant
carrier
or
constant
carrier
with
stepped
attenuation?
Is
this?
You
should
also
include
a
traditional
beacon
that
says
something
like
like
hi.
This
is
the
beacon
on
you
know
this
transponder
and
and
so
it'll.
This
is
the
power
of
this
is
to
allow
you
to
try
a
versus
b
comparison
at
your
ground
station,
just
so
that
you
can
tell
well
does
this
change
make
the
signal
I'm
hearing
better
or
worse,
so
I
thought
that
was
good
and
I'm
not
familiar
with
these
things
in
detail.
A
So
I
asked
about
what
is
this
style
of
beacon?
The
iaru
approach
is
a
transmission
that
consists
of
the
call
sign
of
the
beacon
and
it's
sent
at
22
words
per
minute,
just
followed
by
four
one.
Second
dashes
the
call
sign
and
the
first
dash
are
sent
at
100
watts.
The
remaining
dashes
are
sent
at
10,
1,
10
watts,
1
watt
and
100
milliwatts,
and
his
opinion
is
that
the
one
second
dashes
are
too
short:
they'd
prefer
them
to
be
5
or
10
second
dashes.
A
But
if
you
want
to
go
around
the
list
of
stations
in
the
band
pretty
quickly,
then
you
know
that's
the
original
reason
for
them
being
being
so
short,
but
we
wouldn't
be
in
such
a
rush
for
oscar-style
traditional
beacons.
It's
any
modulation,
that's
already
being
used.
It
just
has
to
start
with
hi
or
hello
and
in
his
recollection,
the
on
ao21,
the
ax.25
packet
downlink
had
one
ax,
25
frame
that
says
hi.
A
This
is
the
so-and-so
experiment
on
amsterdam,
oscar
21
as
the
text
inside
a
1200
baud
packet
frame
and
then
on
ao
10,
ao13
a040.
It
was
high
as
a
400
baud
bpsk
with
manchester
encoding.
So
those
sorts
of
things
you
ramp
up
through
the
simpler
modulations,
like
that
all
the
way
up
to
the
the
modulation
and
coatings
for
dvds2
and
s2x,
of
which
there
are
many
combinations
of
modulations
and
forward
error
correction
code
rates.
A
A
Whenever
the
there
were
there,
wasn't
any
user
signals
user
traffic
since
dvb,
s2
and
s2x
have
the
idea
of
well.
You
know
you
know
it's
always
transmitting,
there's,
never
not
any
frames
that
are
transmitted
in
a
in
the
digital
downlink,
then
putting
in
default.
Digital
downlink
content
is
easy.
It's
an
easy
thing
to
to
imagine
you
know.
So.
B
Yeah,
okay
laughing,
that
down,
like
always
be
the
same
thing,
is
really
a
nice
simplicity
to
have.
It
means
that
the
receive
stations
can
be
simpler
and
more
predictable
in
behavior,
plus
it'll
guarantee
compatibility
with
off-the-shelf
commercial
receivers,
which
already
know
how
to
do
ddbs
2x
continuously.
A
A
So
you
would
have
most
of
the
most
of
the
flow
would
work
up
to
the
point
where
it
would
decode
and
then
you
get
a
decoding
error.
I
don't
know
what
exactly
it
would
look
like.
You
know,
it
kind
of
depends.
I
guess
on
the
chip
or
the
implementation,
but
it
sounds
like
the
the
argument
might
apply
to
doing
some
of
the
more
advanced
codes
outside
of
past
ldpc.
B
A
B
A
Yeah,
I
think
the
intentions
are
very,
very
good.
You
know
trying
to
provide
useful
beacons,
but
there
may
be
other
ways
to
achieve
that
within
an
open
source.
You
know
within
an
open
source
organization
like
us.
There's
there's
other
ways
to
support
it
rather
than
than
trying
to
make
the
transponder
do
all
all
things
to
all
communities
to
all
receivers
to
to
a
lot
of
people.
A
A
Okay,
that's
that's
a
lot
of
a
lot
of
things
to
think
about
in
terms
of
writing
a
like
a
specification,
though
I
I
think
that
it's
a
straightforward
thing
to
to
go
through
to
cycle
through
all
the
code
rates
and
and
modulations
within
dvds2
and
s2x,
and
have
known
here's
a
a
talk
or
a
some
sort
of
content.
You
know
that
it's
not
just
random
data
that
we're
transmitting
that
it
is
some
known
signal
that
you
would
recognize.
A
B
A
A
B
Well,
I
think,
as
long
as
you
stay
inside
the
bounds
of
dbvs
2x,
then
you
don't
need
to
don't
need
to
get
too
excited
about
it
until
further
down
the
road
system
is
already
designed
for
dbs2x
and
becomes
more
of
an
operational
concern.
What
do
you
put
in
the
in
the
channel
when
you
don't
have
anything
else
to
do.
A
Then,
looking
at
the
dual
band
feed,
it's
like
okay,
what
what
rf
boards
are
needed
in
order
to
provide
10,
gigahertz
uplink
and
a
24
gigahertz
downlink
for
the
transponder.
So
that's
proceeding
and
I'm
very
happy
about
it.
The
the
feeds
from
are
from
paul
wade,
it's
his
design
and
they're
they're,
quite
lovely.
B
B
At
whatever,
at
the
whichever
band
is
the
uplink
man
to
actually
run
some
power
through
the
transmit
side
and
then
try
to
measure
descents
on
the
receive
side
in
a
practical
application
with
a
real
antenna,
pointed
at
real
sky,
or
maybe
pointed
at
a
test
antenna
down
the
range
or
something
like
that?
Might
we
might
learn
something
from
that.
A
Yeah,
that
would
be
the
I
think
that
would
be
great.
I
would
like
like
to
see
that
very
much
okay.
I
think
that
that's
that's
something
that
I'll
I'll
prepare
that
as
sort
of
a
pitch
to
spms
tonight,
and
also
put
it
out
for
san
diego
microwave
group
to
see
if
someone
would
be
willing
to
to
do
exactly
that.
It's
a
good
idea.
B
A
Yeah,
okay,
I
will
amend
the
the
pitch
to
include
both.
I
think
we
have.
We
have
pretty
good
lab
results
that
we
have
on
the
poster,
so
we
have
a
poster
about
this.
That
sort
of
presents
the
sort
of
a
high
level
here
here
you
go:
here's
the
achievement
of
the
5
and
10
gigahertz,
dual
band
feed,
but
you're
right.
I
don't
think
it's
been
used
in
anger
with
a
with
a
pa,
and
we
have
not
confirmed
in.
In
my
opinion,
we
haven't
confirmed
the
isolation.
A
We
can
see
that
it
matches
the
theoretical
and
that
that
it's
good
enough
for
for
what
we
set
out
to
do.
It
should
achieve
the
goals.
But
if
we
follow
the
philosophy
of
it
not
working
until
it's
tested,
then
it
doesn't
work
yet
so
that'd
be
good
to
do
and
both
of
them
as
large
metal
objects,
they're
they're,
pretty
solid
metal,
machined
dual
band
feeds
paul
wade's
advice
on
productizing
them
was
that
most
of
it
can
be
replaced
with
plastic.
A
Like
you
know,
the
feeds
the
commercial
feeds
that
you
have
for
for
satellite
television,
that
only
a
little
bit
of
it
needs
to
be
metal,
and
we
do
have
some
experience
with
metallizing
3d
printed
parts.
So
the
process
of
turning
these
feeds
into
something
that's
much
less
expensive
to
make
or
involved
to
make
will
be
very
beneficial,
and
especially
if
you
want
to
get
on
the
air,
you
know
then
then
having
an
inexpensive
dual
band
feed
would
would
go
a
long
way
to
making
personal
stations
much
easier
to
to
put
together
to
achieve.
A
So
it's
it's
worked
well
with
doing
it's,
I'm
not
sure
how
exactly
to
to
do
it.
So,
the
again
you
know
this
will
be
something
that
we'll
talk
about
at
sbms
and
sdmg,
and
you
know
I'll
I'll
start
reaching
out
with
this
particular
job
and
the
support
that
we
can
offer
to
all
the
different
microwave
communities
that
I
can
find.
A
A
A
You
know
as
a
as
a
sort
of
a
formal
sub
project
of
of
ori,
so
that
would
add
to
our
collection
of
of
link
budgets
there.
I
view
link
budgets
as
sort
of
a
wear
item
and
they
are
a
model.
Some
are
very
simple:
some
some
of
the
link
budgets
that
we
have
are
a
single
page
that
don't
include
any
real
implementation
losses,
or
they
just
put
in
a
number.
Some
of
them
are
more
complex.
A
A
Some
assumptions
relate
to
the
the
temperature
of
you
know:
noise
temperature.
The
assumptions
of
some
linked
budgets
are
totally
different
than
others,
so
this
is
a
natural
variation.
You
know
in
in
a
multi-variable
set
of
documents.
All
these
documents
are
multi-variable.
Some
are
much
more
multi-variable
than
others,
and
the
inner
relationships
between
all
these
variables
create
a
huge
search
space
for
for
data
and
for
information.
So
this
is
to
me
it's
like
you
know,
they're
they're
not
going
to
agree
they.
Some
of
them
are
focused
on
different
solving
different
problems.
A
So
adding
another
significant
link
budget
to
the
to
the
collection
is
a
big
step
forward
and
then
converting
it
into
a
jupiter
notebook
would
be
a
good
service.
So
that's
that's
where
we're
at.
On
that
all
right,
that's,
I
think.
That's
all
of
the
items
that
I
published,
except
for
the
additional
items
and
questions.
C
Hello
and
I
connected
very
very
later,
I'm
a
curious,
an
organization
think
what
where
this
project
is,
is
headed,
for
example,
to
watch
fpga
code
test
benches
and
it's
my
mistake.
I
I
didn't.
I
haven't
going
deep
in
documentation,
but
can
you
please
point
me
some
some
of
these
source
repository
thanks.
A
C
A
B
One
of
the
most
recent
things
we've
gotten
working
in
the
remote
labs,
the
ability
to
take
a
screenshot
from
the
user's
computer,
each
of
the
pieces
of
test
equipment
we
bought
is
remotely
controllable
and
most
of
those
devices
usually
come
with
a
way
to
get
a
copy
of.
What's
on
the
screen
for
some
reason,
probably
associated
with
trying
to
sell
their
own
software,
most
of
the
manufacturers
do
not
document
exactly
how
to
get
a
screenshot.
B
They
have
big
thick
manuals
that
explain
how
to
control
all
the
functions
of
the
instrument
that
omitted
from
that
document
is
how
to
get
a
screenshot.
So
I've
been
trying
to
create
little
sample
programs
in
python
that
can
get
a
screenshot
based
on
a
little
bit
of
reverse
engineering
and
a
lot
of
googling,
because
other
people
have
already
solved
this
problem.
B
So
we've
got
these
little
scripts
and
they
work
great
locally.
If
you
run
them
on
the
raspberry
pi,
that's
the
serving
is
the
gateway
to
the
remote
lab,
but
with
our
wire
guard
based
virtual
private
network
solution
for
remote
remote
controlled
instruments,
which
is
one
of
the
the
two
methods
for
getting
remote
access,
the
other
one
being
just
ssh,
it
seems
to
not
work
that
well,
it
should
work.
B
Just
fine,
it
should
be
transparent,
might
be
a
little
slower,
but
what
we're
seeing
now
is
that
sometimes
the
screenshot
just
fails
and
I'm
trying
to
debug
exactly
why
that
happens.
I'm
in
the
remote
lab
right
now.
Let
me
switch
my
screen
around
if
I
can
figure
out
how
to
do
that
in
in
short
order,
yeah.
So
here's
the
screen
for
the
raspberry
pi,
which,
if
you
can
see
it,
is
running
wireshark
and
here's
all
the
instruments
in
the
remote
lab-
and
this
is
my
laptop,
which
is
also
running
wireshark.
B
B
B
B
B
It's
the
baseline
for
access
to
those
virtual
machines
and
to
the
overall
powerful
lab
computer
is
through
ssh,
which
is
a
connection-oriented
virtual
private
network
thing.
So
you
log
into
a
virtual
machine
on
the
machine
which
is
behind
the
raspberry
pi.
That's
all
one
ssh
command
and
now
you've
got
immediate
access
and
you're
running
on
essentially
running
on
the
windows
machine
or
on
the
virtual
machine
inside
the
windows
machine
from
there.
You
have
no
handicaps
right
as
long
as
you're
on
that
machine
you're
on
the
land.
You've
got
high
bandwidth
connections
to
things.
A
C
C
B
B
B
B
C
C
You
are
also
architecting
the
the
female
part,
but
I'm
curious
to
have
a
look
also
at
fpga
part.
I
work
at
the
telecommunication
area,
so
I
and
q
is
something
I
use
it
in
obside,
it's
a
an
old,
not
so
spread
interface
through
radiohead
and
baseband,
and
so
I'm
curious
to
read
how
these
concepts
are
applied
now
and
the
especially
how
this
communication
technology
can
increase
freedom
in,
because
now
we
have
a
very
need.
C
A
A
C
It's
something
that
the
recommendation
is
never
it's
a
very
extra
work
by
doing
a
good
documentation
requires
work.
I
I
didn't
expect
to
expect
to
go
in
deeper,
so
in
the
in
the
code
in
the
in
the
schema
electric
schema,
because
time
obviously
is
needed
to
make
algorithms
validate
use,
matlab
simulation
and
things
like.
So
I
understand
this
a
huge
project.
I
admire
you,
you
guys
for
your
activity.