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From YouTube: 20220218 ORI Office Hours
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A
B
Well,
I'm
just
curious.
Well,
first
of
all,
let
me
give
you
a
background.
My
call
sign
is
n2am
and
obviously
you
see
that
my
data
there,
but
I've
been
kind
of
lurking
on
the
email
list
for
a
while,
and
my
background
is
not
specifically
in
engineering.
I
come
from
the
journalism
and
broadcasting
side
of
the
house
professionally.
I
ran
a
radio
station
for
almost
15
years
and
been
in
the
broadcast
industry
since
the
late
70s
and.
B
Oh
yeah
and
in
the
ham
side
I've
done
everything
from
hf
to
the
satellite.
Since
back
to
the
80s,
I
go
back
to
rs6
and
7
and
I'm
always
curious
about
the
higher
end,
experimental
stuff
and
things
so
I've
been
lurking
in
the
the
mailing
list
haven't
contributed
much
because
you
know
I'm,
I'm
not.
I
like
to
think
I
understand
a
good
high-end
engineering
concepts,
but
by
no
means
I'm
an
engineer.
A
B
Okay,
and
by
the
way
I
gotta
congratu
give
you
props,
because,
because
you've
done
a
heck
of
a
lot
with
the
itar
stuff
and
things
like
that,
and
I'm
amazed
that
you
didn't
get
treated
properly
with
amsat,
I'm
really
disappointed
with
that,
because
I've
been
an
amsat
fan
since
the
early
80s
and
that
really
bummed
me
out
when
I
saw
how
you
were
treated.
A
Yeah,
I
can
tell
you
from
this
from
this
side
of
the
desk.
It
wasn't
really
that
fun
either.
I'm
I'm
still
pretty
befuddled,
so
maybe
in
time
it
will
change,
but
the
results
are
there
and
people
are
taking
advantage
of
it.
We
are,
and
other
groups
are
from
caltech
to
libra
space
to
you
know
everybody
in
between,
so
I
really
did
expect
to
get
a
lot
more
collaboration
and
cooperation
from
amsat,
because
it
it
they.
They
are
the
organization
that
would
most
benefit
from
itar
ear.
B
Oh
yeah
definitely
and
you
would
think
that
they
would
applaud
and
jump
up
and
down
and
so
on,
because
you
know
we
all
want
the
same
thing.
We
we
want
space
presence,
we
want
a
ride
to
heal,
hopefully,
and
things
like
that.
A
B
B
Okay,
what
what
progress
have
you
made
as
far
as
things
like
the
ground
station
codex?
What
you
want
to
use
for
audio
and
things
like
that
or
you
haven't
gone
that
far
yet.
A
We
actually
started
with
a
with
the
codec
in
mind
and
what
we've
said
at
like
presentations
and
and
what
we
said
amongst
ourselves
is
no
crappy
codex
allowed.
So
we've
all
been
a
little
bit
disappointed
with
the
digital,
with
the
commercial
digital
codec
decision
to
kind
of
coalesce
around
ambi.
A
For
a
couple
of
different
reasons,
the
ambi
codec
was
developed
for
commercial
interests
that
needed
to
have
as
many
subscribers
as
possible
compressed
in
a
relatively
small
bandwidth
right.
So
you
you
can
see
where
this
is
going.
If
you
select
a
commercial
codec
like
ambi,
then
you're
going
to
get
the
baggage
sort
of
the
technical
debt.
A
B
A
Yeah,
it's
really
it's
really
quite
good.
So
so
what
we
did
is
we
said
we're
the
codec
is
an
application
layer
decision
we're
not
going
to
design
one
in
and
we
we
recommend
codec
2
and
we
recommend
opus.
So
those
are
the
two
that
we
recommend
and
that
needs
to
be
an
application
layer
decision,
meaning
that,
as
an
amateur
operator
of
the
things
that
we
develop,
that
your
application
gets
to
pick
the
codec.
A
Now,
if
you
really
really
want
to
use
amb,
you
can
or
if
you
want
to
downgrade
your
codec
2
to
400,
you
know
bits
per
second,
then
okay,
you
can
but
having
leaving
that
up
to
the
application
layer
and
saying
okay
applications.
You
need
to
support
codec
2
at
a
high
bit
rate.
You
know
or
something
like
opus
at
a
high
bit
rate.
Then.
A
B
I
agree
with
you
because
another
thing,
though,
have
you
gotten
to
the
point
where
you
can
figure
out
how
many
megahertz
of
space
you
can
cram
into
this
thing,
because
I
understand
and
correct
me
if
I'm
wrong,
it's
five
gigahertz
up
and
10
gigahertz
down
and
it's
essentially
not
a
bent
pipe
system.
It's
there
was
a
lot
of
stuff
done
on
the
bird
well,
on
the
let's
say
in
the
case
of
satellite,
it
would
be
on
the
bird.
A
No,
no,
you
really
do
do,
and-
and
and
this
is
you
know-
I
mean
when,
when
we're
talking
about
communications
technology,
it
is
an
advanced
sort
of
scheme.
It's
you
know,
it
is
not
just
a
bent
pipe,
yes
it.
It
accepts
frequency
division,
multiplexing
up
and
then
essentially
you
know
re-transmits
it.
So
it's
processed
on
board
and
retransmits,
so
you're
exactly
right
and
yes,
we
we
know
that
we
have
a
sub
band
on
on
five
gigahertz
and
10
gigahertz,
that's
10
megahertz
wide,
and
so
this
is
actually
a
lot
of
room.
A
What
we
baseline
is
96
channels
up,
which
gives
you
roughly,
I
think
you
know,
100
kilohertz
wide
channel
and
we
baseline
okay
within
that
hundred
kilohertz
uplink
channel.
You
can
probably
easily
occupy
with
affordable
gear,
25
kilohertz.
So
there
you
go.
A
You
got
your
25
kilohertz
supplement,
channel
and
channel
bonding
and
large,
in
other
words,
being
able
to
transmit
something
larger
than
that
is
possible,
but
that's
the
sort
of
the
baseline
scheme
and
that's
what
we
tried
to
demonstrate
like
at
previous
defcons
before
covid,
so
to
do
a
polyphase,
filter,
bank
or
polyphase
channelizer.
That
shows
like
this
is
what
the
uplink
is
probably
going
to
look
like.
You
know
we
use
a
a
polyphase
channelizer.
B
A
Yes,
he's
in
he's
this
is:
he
is
actually
involved
in
the
process,
because
the
codec
2
is
his
work,
so
codec
2
voice
codec
is
used,
that's
the
codec
for
m17
and
then
the
rest
of
the
protocol
is
developed
by
an
international
team.
The
lead
of
that
team
is
from
poland,
wojciech
cosmetic
and
he's.
Then
a
lot
of
other
people
from
all
around
the
world,
ranging
from
from
germany
to
the
us.
A
A
The
m17
is,
you
know
you
constantly
hear
it
as
9
600
bits
per
second,
so
it's
it
has
to
fit
within
the
vhf
uhf
rules,
but
for
microwave
we
get
to
broaden
that
out
a
bit,
and
so
the
discussion
is
okay,
so
we
should
we.
Should
we
channel
bond
a
whole
bunch
of
m17?
A
A
But
boy
would
it
be
great
if
your
if
your
single
radio
could
could
work
terrestrially
at
vhf
or
uhf
and
also
work
for
a
microwave,
terrestrial
and
microwave
satellite
system,
so
we're
working
really
hard
to
figure
this
stuff
out
and
to
get
a
good
prototype.
A
The
next
show
that
we
have
is
for
is
defcon
at
the
end
of
the
summer,
and
we
do
have
some
ldpc
low
density
parity
check
forward
error
correction
for
the
downlink
to
show
coming
right
up
in
march
at
ham,
expo
from
from
one
of
our
developers,
andre
suato,
so
plenty
of
stuff
going
on
for
the
downlink
for
the
dbbs
2x
side,
and
also
plenty
going
on
on
the
uplink
side
that
leverages
m17
protocol
pretty
hard.
A
So
all
of
it
open
source
and
all
of
it,
including
the
work
from
david
and
what
we're
our
goal.
We
had
a
technical
advisory
committee
meeting
recently
and
we
void
check
was
able
to
present
about
work
for
the
3200
bit
per
second
version
of
kodak
ii,
and
what
we'd
like
to
do
is
to
make
it
sound
as
good
as
possible.
So
he
presented
a
lot
of
of
work
there
on
on
tuning
it
up
and
and
and
making
it
sound
as
good
as
possible.
A
So
yeah
we're
just
trying
to
move
forward
on
all
fronts
to
make
it.
You
know
sound
as
good
as
possible
to
use
open
source
work
all
along
the
way
and
to
get
a
prototype
over
the
air
demo
working
as
quickly
as
possible.
So
that's
what
we're
up
to.
B
B
Just
a
a
couple
of
comments
which
this
will
probably
throw
you
for
a
loop,
because
you
probably
have
not
gotten
many
requests
for
this,
but
in
addition
to
all
this,
the
stuff
that
I've
been
involved
with
I've
been
totally
blind
all
my
life
and,
as
a
result,
I
use
special
screen
reading
technology
to
interface
with
computers
and
so
on,
special
software
that
allows
this
computer
to
talk.
So
I
can
read
the
screen,
etc,
that
whatever
you
come
up
with,
it
would
be
great
to
make
sure
that
they
work
with
screen
readers.
A
Yes,
that
is
actually
a
requirement.
That's
a
specification
requirement
for
for
ori
work.
B
A
Any
sort
of
innovation
or
any
sort
of
engineering
that
that
would
help
accessibility-
I
guess,
is
the
catch-all
phrase
for
it
these
days,
but
any
of
that
helps
everyone
and
you'd,
be
I
I'm
sure,
okay,
so
you're,
probably
not
going
to
be
surprised,
it
actually
has
received
some
resistance
from
various
groups,
but
that's
our
commitment
is
that
that
it
has
to
be
accessible
and
screen.
A
B
A
Correct
it
is
and
yeah
I
am
in
full
agreement
and
we'll
keep
at
it.
We
will
just
keep
renewing
that
all
along
the
way,
because
you
you
really
have
to
do
you
really
have
to
pay
attention
to
it
all
along
the
way.
It
can't
be
something
that
you
try
to
graft
in
at
the
last
minute.
It's
it's
painful
and
you'll
get
a
not
great
product
at
the
end,
but
yeah
it's
a
requirement
for
for
our
work.
B
That
is
great.
You
know,
because
us
in
the
blind
ham
community
have
talked
about
this
for
years,
that
it
shouldn't
be
grafted
on
that
everything
should
be
worked
out
of
the
box.
Well,
apple
has
done
that
with
its
products,
but
I'm
glad
to
see
somebody
you
get
it.
You
apparently
get
it.
That's
great.
A
Oh
well
yeah
if
it'd
be
okay
to
reach
out
to
you
later,
just
to
double
check
to
make
sure
that
we're
we're
not
botching
it.
That
would
that
would
be
super
helpful.
Oh.
B
Sure
I'd
love
to
if
I
can
help
out
in
any
way,
but
be
warned
that
I'm
not
a
professional
engineer.
I
like
to
think
that
I'm
a
techie
because
I've
been
a
well.
You
might
call
me
a
high-end
computer
power
user
since
the
dos
days
of
the
1980s
and
so
on.
But
I
am
by
no
means
a
coder,
but
I
like
to
think
that
I
understand
concepts.
A
B
A
Well,
that's
the
most
important
thing.
You
know
the
in
my
opinion,
so
thank
you
I'll.
I
will
definitely
bug
you.
C
I
I
was,
I
wasn't
planning
on
talking
about
anything.
Oh.
C
A
A
I
didn't
mean
to
put
you
on
the
spot:
I've
already
bragged
about
you,
because
I
am
really
really
looking
forward
to
your
presentation
for,
for
ham
expo
the
work,
the
amount
of
work
that
you've
put
into
the
animations
to
show
ldpc
working
wow.
I
think
it's
gonna
be
it's
gonna
be
well
received
and
the
the
the
way
that
you
talk
about
it
like
the
discussion,
that's
fantastic.
A
So
I
I
don't
know
there
aren't
a
whole
lot
of
good
tutorials
or
presentations
out
there
about
low
density
parody
track,
which
is
weird
because
it's
been
around
for
so
long
and
it's
so
cool,
but
most
of
the
papers
and
presentations
start
out
with
these
extremely
dense
like
equations
and
prove
something
you
know
and
I'm
like
I
don't
know
I
mean
so
as
a
as
an
applied
mathematician
type
person.
It's
never
really
been
the
best
experience.
C
C
This
is
how
this
one
works
and
you
know
then
you
can
expand
to
you
know
whatever
other
like,
for
example,
5g
has
ldpc,
but
I
think
it's
quite
different,
but
at
least
you
know
you
have
one
area
that
you
okay,
you
know,
I
don't
want
the
pc
for
this.
I
I
just
need
to
find
the
delta
to
the
other
one.
Instead
of
just
you
know,
dumping
the
whole
thing
and
say
you
know
just
fill
in
the
the
parameters.
For
your
particular
case.
A
Yeah,
no,
I
completely
yeah,
I
I
I
it
took
me
a
long
time
to
kind
of
make
peace
with
being
applied
rather
than
the
theoretician,
because
you
know
it
seems
like
the
theoreticians
and
the
people
that
know
the
theory
are
better.
You
know,
and
I
just
like
doing
stuff.
So
it's
yeah
you,
you
learn
what
you
need
to
learn
in
order
to
get
stuff
done,
and
then
the
stuff
that
has
no
application
kind
of
to
me
is
always
falling
a
little
flat.
You
know.
A
C
Yeah
thanks
thanks
cool
yeah.
I
recorded
many
many
times
and
you
know
I
avoided
watching
the
thing
again
because
I
keep
thinking
like.
Oh
my
god,.
A
C
C
A
Now
is
there
is
there
so
we
have
a
booth
at
ham
expo
which
is
neat
because
they
they've
they
give
us
a
really
good
deal.
It's
a
for
non-profits.
We
get
a
booth,
so
we
have
an
opportunity
to
put
other
videos
pdfs
and-
and
you
can
hang
out
at
the
booth
and
it's
like
a
little
room
and-
and
it
has
has
like
a
background
that
looks
like
a
lounge-
it's
pretty
cool,
so
you
can
talk
to
people
there.
You
can
just
show.
A
Yeah
yeah,
all
virtual.
It's
really
pretty
neat,
so
so
just
I'll
I'll
put
out
on
the
list.
All
the
you
know
all
of
the
information
so
that
people
can
show
up
and
hang
out
and
just
have
a
good
time.
You
know
so
no
pressure,
but
if
you
do
have
something
like
a
like
pdf
or
if
you
want
to
put
a
hard
copy
of
the
slides
up
or
whatever.
A
Yeah
he'll
have
that
in
the
it's
really
pretty
neat
so
like
for
your
talk,
then
somebody
should
be
able
to
just
click
and
when
they're,
watching
your
talk,
there's
like
a
little
button
that
they
can
click
and
download
your
slides
and
stuff
like
that.
But
for
for
our
booth
it'll
that
it
does
it's
not
connected.
So
if.
A
C
A
A
A
C
You
know
that
I
had
the
card
the
network
card.
That
said,
you
know
yes
or
no.
There
was
no
in
between.
So
it's
very,
very
hard
so
like
being
with
wrong
stuff,
you
know.
Well
I
have
the
result
I
have
you
know.
I
looked
up
into
his
code
and
say
you
know,
why
is,
is
the
result
slightly
different
or
something.
A
A
I
haven't
gotten
a
chance
to
install
matlab.
I
thought
I
would
be
it's
now
friday
of
the
week
after
pam
cation,
and
I
think
today
is
the
first
day
I
feel
actually
like
rested.
A
A
So
so
I
think
I'll
dive
into
that
today
and
then-
and
I
I
did
promise
on
thursday
morning-
that
I
would
try
to
see
if
the
performance
had
been
improved
with
vivado,
because
I
think
you
were
the
one
that
that
wrote
in
that
we
it
took
two
hours
to
get
the
block
diagram
to
pop
up,
and
that
is
completely
unacceptable.
It
should
only
take
two
seconds,
so
I
have
not
confirmed
that.
That's
all
been
fixed
yet,
but
I,
but
I
will,
after
this
meeting.
C
Yeah
yeah,
yet,
actually
I
think
paul
mentioned
something
about
logging
or
something.
C
A
Hopefully
it's
fixed
and
we'll
we'll
just
keep
working
at
it
until
it
is
it's
yeah
and-
and
you
know
worst
case,
I
guess
we
can
go
back
to
the
way
that
we
had
it
set
up
in
the
beginning,
which
does
reduce
the
disk
space
a
little
bit,
but
it
is
very,
very
fast
that
way
so
I'd
like
for
everybody
to
just
be
able
to
log
in
and
everything
to
be
to
experience
it
very
quickly,
and
you
know
what,
if
the
disk
space
is
a
little
bit
limited.
A
C
A
Know
paul
is
like
trying
to
optimize
it
to
make
it
do
both
that
we
have
tons
of
space
and
it's
fast
so
we'll
try
to
do
that,
but
we
won't
be
silly
about
it,
so
yeah
the
matlab
thing
I
was
so
I
was
thinking
about
putting
matlab
on
karabe,
but
karapi
doesn't
have
a
radio.
So
if
we
want
to
do
anything
with
matlab
all
the
way
to
on
the
air,
then
it's
going
to
have
to
also
end
up
on
choco
cat,
which
is
the
one
that
has
the
adrb
9371
board.
A
So
I'm
not
really
sure
now
thinking
about
it,
if
that's
the
best
way
to
do
it,
but
if
we
wanted
to
use
matlab
primarily
for
polar
code
work,
you
know
there's
still
tons
and
tons
of
stuff
to
do
with
just
confirming
that
the
forward
error,
correction
works
and
and
having
it
over
the
air
would
just
be
a
would
be
a
relatively
distant
goal.
So
I
don't
know,
that's
that's
the
that's.
What
we're
looking
at
today.
C
A
A
C
A
That's
you're
on
the
way
you.
C
A
Go
from
there,
so
that's
kind
of
the
goal
is
to
give
us
a
good
tool
to
go
from
from
people
that
are
comfortable
using
matlab
and
doing
advanced
stuff
like
we
have
some
an
encoder
for
for
m17
from
fred
harris
in
in
matlab.
B
A
That
sounds
like
a
good
thing
to
try
to
get
all
the
way
to
hdl
and
to
go
over
the
air
you
know
so,
if
another,
so
I'm
gonna.
That
was
what
I
was
gonna
start
with,
because
it's
a
script
from
from
someone
that
knows
what
they're
doing
he's
a
matlab
expert
and
then
okay.
If
we
can
get
that
into
hdl,
and
it
actually
looks
like
hdl,
then
okay,
then
the
confidence
is
higher.
A
So
so
that's
kind
of
that's
what
I
wanted
to
accomplish
and
as
soon
as
I
can
figure
out
how
to
install
it,
where
it
will
actually
run
quickly,
then
we'll
do
that
so
I'll
I'll
point
you
at
it
and
let
you
know
where
the
hdl
is
and
I'll.
Let
you
tell
me
if
it's
useful,
yeah
yeah,
of
course.
C
A
Because
I
have
no
idea
what
it
looks
like
when
it
pops
out
of
the
toolbox-
I
you
know,
I
don't
know
what
matlab
is
going
to
present
to
us
as
hdl
people
like
it,
but
the
matlab
people.
This
is
this-
is
some
inside
baseball?
They
they
said
that
hdl
coder,
the
reason
why
that
they
do
not
have
hdl
coder
as
avail
as
a
toolbox,
that's
available
for
the
home
license,
which
is
what
we
were
using
before
the
reason
that
they
don't
let
you
have.
D
A
C
C
A
C
D
A
Oh,
thank
you
yeah.
I
really
appreciate
your
time.
I
know
it's
limited
yeah,
no,
just
open
discussion
about
anything
at
all
and
I
try
to
have
more
of
these
around
the
around
the
clock.
You
know
throughout
2022..
In
addition
to
like
the
scheduled
formal,
like
the
technical
advisory
committee
is
quarterly,
and
then
we
have
events
with
ieee
and
stuff
like
that,
but
the
office
hours
are
just
open
discussion,
so
anybody
can
talk
about
anything
and
and
bring
critique
comment
concerns
all
that
great,
so
yeah.
A
Oh
okay,
yeah!
So
yes,
we,
we
love,
lurkers
and
approve
and
support
all
of
our
all
of
the
lurking
and
and
all
that
all
right.
A
D
It's
morning
here,
I
don't
have
a
whole
lot
to
report
that
hasn't
already
been
talked
about.
We
put
choco
cat
back
together
and
I
believe
it
should
be
fast
unless
you
use
stuff
on
the
big
partition,
so
the
tools
should
be
fast,
because
they're
on
the
cache,
ssd
and
general
operation
should
be
fast,
because
the
main
the
main
volume
for
chococat
is
on
the
ssd
same
with
kerapi
should
be
fast
again,
should
be
pretty
much
just
as
fast
as
it
was
when
it
was
brand
new
unless
use
the
big.
D
Directory
to
store
stuff
and
we've
got
a
couple
hundred
gigs
right
now,
but
that
won't
last,
so
I
ask
everybody
to
be
a
little
thoughtful
about
how
big
files
get
stored.
If
you
have
big
files,
you
don't
need
anymore,
get
rid
of
them.
If
you
have
big
files
that
you
do
need,
but
don't
have
to
be
super
fast
right
now
and
you
can
move
them
off
to
the
big
directory,
but
probably
do
most
of
your
work
outside
of
that.
D
That
right,
okay,
big
things
that
have
normal
performance.
Basically,
the
kind
of
performance
you'd
get
on
a
pc
with
a
hard
drive,
that's
the
kind
of
performance
we
can
expect
out
of
big,
except
that
it's
enormous.
So
you
can
store
a
lot
of
stuff
there.
It's
not
going
to
be
as
fast
as
a
pc
with
an
ssd,
because
it's
just
not
an
ssd
will
be
a
little
slower
than
a
normal
hard
drive,
because
the
array
has
some
redundancy
that
takes
extra
steps
to
to
store,
especially
but
also
to
retrieve
data.
D
D
Consider
copying
it
off
or
moving
it
off
too
big,
then
you
can
always
bring
it
back
if
you
need
the
speed
and
then
when
it's
no
longer
of
any
interest
whatsoever,
then
consider
deleting
it
don't
delete
anything
you
might
need.
Obviously
we
have
enough
room
to
store
stuff
and
if
there's
stuff,
that
needs
to
be
archived,
I
can
do
that
too.
C
A
Point,
I
guess
I've
been
kind
of
stunned
at
how
large
some
of
the
files
are.
I
mean,
and
you
know
all
of
us
know
that
vivado
is
a
disc
user,
okay,
yeah
and
that's
known,
but
actually
seeing
how
large
the
installation
is
is
a
little
wow.
You
know
and
then
the
I
guess
I
wasn't
really
expecting.
The
the
file
system
builds,
the
the
pedal
linux
builds
to
be
as
large
as
they
are
either
I'm
used
to
them
being
relatively
small.
A
I
guess
working
with
embedded
devices
or
having
an
embedded
background,
and
then
this
is
supposed
to
all
be
embedded,
but
some
of
these
file
systems
and
some
of
the
products
are
are
really
large,
and
I
I
guess
it's
either:
that's
just
how
large
they
are.
That's
how
big
they
have
to
be,
or
it's
some
defaults
that
I'm
using
that
are
not
maybe
optimized
for
the
the
payload.
D
D
D
So
I
could
monitor
the
progress,
so
every
file
it
moved
was
a
couple
of
lines
of
text
in
the
log
file
and
if
you
have
hundreds
of
thousands
of
files
and
each
one
puts
100
bytes
into
the
log
file,
you
can
see
it's
going
to
be
a
lot
of
writing
to
the
disk
and
that
blew
up
the
the
amount
of
space
it
was
allocated
for
the
log
file
and
when
it
turns
out
the
way
it's
set
up.
When
you
fill
up
the
log
file
partition
the
next
time.
Your
application
makes
a
log
call.
D
D
So
obviously
I
turned
that
logging
off.
So
that's
not
going
to
be
an
ongoing
problem,
but
unraid
is
intended
to
be
a
managed
system,
you're
supposed
to
pay
some
attention
to
it,
not
not
a
set
and
forget
embedded
style
system.
So
I
get
alerts
when
anything
goes
wrong,
including
things
like
the
log
file
partition
getting
too
big.
So
hopefully
this
will
not
be
a
problem
in
the
future.
A
Okay,
good
is,
does
remote
lab
south
know
about
it.
D
D
Yeah
now
about
matlab,
depending
on
how
much.
D
A
That
would
be
really
cool
if
we
could
do
that,
because
we
just
have
one
the
one.
So
the
license
that
we
have
is
a
excellent
one,
but
it's
a
discounted
license
through
what's
called
their
startup
program
and
we
have
at
least
a
year
which
the
clock's
already
ticking.
So
we
already
bought
the
license
right
right
before
we
went
to
hamcation
because
the
the
quote
was
expiring.
A
So
I
waited
as
long
as
possible
so
that
we
could
get
as
much
time
as
possible
and
then
went
ahead
and
and
bought
it
hoping
to
get
it
done
by
hamcation.
But
but
I
didn't
so
if
we
can
install
it
to
where
it
can
be
used
on
any
vm.
That
would
be
fantastic
because
then
it
wouldn't
have
the
restriction
that
I
was
worried
about
like
if
I
had
to
install
it
on
karapi
to
use
the
other
devastation
to
not
mess
up
people.
A
You
know
to
not
compete
with
the
zc706,
but
it
could
be
used
on
both.
Then
that
would
be
ideal,
so
I'm
not
sure
how
to.
C
A
The
answer
to
this
question
because
I
think
we
just
have
to
kind
of
like
install
it
and
see
what
happens
they.
The
assumptions
that
that
both
xilinx
with
the
vovato
and
matlab,
with
or
mathworks
with
matlab
make
and
almost
all
of
these
companies
is
that
they,
I
think
that
they
pretty
much
assume
that
you're
you're
installing
it
on
a
big
workstation
at
a
work
site
with
somebody
sitting
in
front,
and
that
are
our
the
way
that
we
do
it
with
with
the
being
radically
remote
and
radically
accessible,
is
a
little
bit
weird.
A
But
on
the
other
hand,
matlab
is
used
all
the
time
in
university
situations
where
multiple
users
are
logging
in
to
the
educational
license,
and
the
educational
license
is
a
little
bit
different
than
the
than
the
equivalent
professional
license
that
we
have,
but
the
pro
license
equivalent
that
we
have
is
also
used
in
these
sorts
of
situations
with
lots
and
lots
of
users.
So
I'm
optimistic,
I
think
that
it
will
work.
I
just
have
to
go
ahead
and
try
it
and
then
test
it.
D
A
D
A
So
that's
why
we
applied
to
the
startup
program
and
that's
that's
why
we
had
to
purchase
the
license
was
because
they
they
punched
this
one
out,
along
with
the
gpu
toolbox
and
the
general
purpose,
programming
toolbox
and
the
lte
pro
for
cellular.
So
the
lte
toolbox
is
also
not
not
available
too,
like
it's
not
available
to
educational,
it's
not
available
to
home,
so
we
actually
now
have
access
to
all
of
those,
including
lte.
A
So
if
somebody
wants
to
work
on
lte
open
source
lte,
which
is
kind
of
tricky,
then
they
then
they
can
so
so
that's
kind
of.
Why?
That's?
How
how
we
kind
of
discovered
this
is
missing
link,
but
you
have
to
have
the
right
version
of
of
matlab
and
I
think
I
have
all
this
written
down.
So
I'm
going
to
go
ahead
and
do
that,
I'm
going
to
make
it
to
where
it's
compatible
with
the
particular
version
of
auto
that
we're
using.
A
You
have
to
install
multiple
versions
and
that's
fine.
You
can
install,
but
matlab
is
very
disk
hungry
too.
Those
are
large
installs,
just
like
the
vivado.
So
these
are.
These
are
hungry,
hungry,
hippo
tools
that
like
to
gobble
up
all
your
gigabits,
you
know
so
we'll
see.
You
know
we'll
start
out
with
that,
and
if
maybe
I
could
do
this
today,
I
think
that
sounds
like
fun
and
then
see
what
happens.
A
A
So
don't
please
don't
quote
me
on
that.
Unfortunately,
this
is
recorded
for
posterity,
but
would
it
you
know
it's
just
like
it's
it's
weird,
because
some
of
the
minor
versions
from
vivado
are
are
major
differences
in
functionality
and
then
some
are
not.
And
then
you
know
it's
because
it's
very
lumpy
like
like
a
lot
of
like
a
lot
of
programs.
A
You
know
so
it's
no,
no
different
for
for
vivado
and
the
it's
interesting
because
20
it
so
it
sounds
like
2019
is
such
a
long
time
ago,
but
in
bravado
years
it's
like
last
month.
A
So
you
you
have
like
dog
years
and
people
years
and
you
have
avado
years
and
you
know
so
we're
we're
solidly
in
the
2019
camp
in
in
order
to
take
full
advantage
of
9371,
which
is
a
really
amazing,
rfic
but
wow.
You
know,
then
you
look
at
2021,
2021,
novato
and
there's
all
sorts
of
cool
stuff
going
on
there.
A
A
A
A
A
No,
it's
burst
with
joy.
Their
heads
will
burst
with
joy,
oh
boy,
yeah
it'll
be
fun
and
yeah
no
and
then
I've
had
on
the.
So
we
have
a
trello
board
that
tracks
tasks
and
it's
been
super
helpful
but,
like
the
the
usage,
has
been
fairly
low
because
the
tasks
tend
to
be
high
fairly
high
level.
You
know
so
people
aren't
using
it
for
like
tiki
tiki
daily
tasks,
which
is
fine,
but
something
that's
been
kicking
around
on.
A
So
if
m17
can
can
start
leveraging
this
sort
of
stuff
for
for
accessible
user
interfaces
for
their
work,
because
just
rapidly
coming
along
for
vhf
uhf,
then
now
may
be
a
good
time
to
to
focus
some
effort
on
the
user
interface.
D
D
Yeah
that
possibly
several
things
but
a
prototype
user
interface
would
be
a
good
way
to
develop
the
user
interface
api.
If
you
will,
which
is
the
core
part
of
the
project
and
then
application
layer
stuff,
would
be
written
to
that
api.
A
Okay,
yeah:
let's
work
on
that
because
I
think
that's
more
valuable
and
it
also
means
that
it's
not
closed,
like
we
don't
cut
cut
off
innovation
or
development
that
we
enable
it
so.
D
Okay,
you
know
we
don't
want
to
be
identified
with
our
early
user
interface
prototype
I
mean,
could
you
imagine
if
we
decided
to
be
compatible
with
dmr
and
we,
and
so
it
ended
up
looking
just
like
dmr
or
something
like
that
and
everybody
who
doesn't
like
dmr
will
say?
Well,
we
don't
like
that.
It's
just
like
dmr
that
we
don't
want
to
be
categorized
that
way.
We
need
to
be
flexible
and
maybe
have
more
than
one
user
interface
when
we
first
show
it
to
people.
A
A
A
I
think
it
would
probably
help
because
there's
for
any
multifaceted,
big
sprawling
thing-
you
know
you
gotta,
do
the
round
robin
and
go
chuck
and
see
what
needs
attention
and
I
think
this
part
uses
it
deserves
and
needs
some
attention.
D
And
if
all
you
have
is
a
couple
of
screens-
and
you
can
point
at
them
and
say,
look
that
one's
talking
to
that
one.
Okay,
that's
the
same
demo
again,
but
it'd
be
nice
to
have
something
a
little
flashier.
A
Yeah
any
along
those
lines,
any
any
thoughts
about.
Well,
I
guess
we
it's
hard
to
do
demos
for
ham
expo
because
it's
a
virtual
event
and
has
a
booth
and
at
all
and
we've
done
in
the
past,
we've
just
shown
off
like
okay.
Well,
here's
our
current
fpga
usage,
you
know
or
here's
a
video
of
alexander
graham
bell
again,
you
know,
but
for
in-person
events
the
next
one
is
is
defcon
and
any
thoughts
on
what
we
might
want
to
do.
For
that.
D
A
Yeah
I'm
I
like
the
idea
of
video
like
the
and
and
we
got
a
we
got
a
thumbs
up
on
essentially
broadcasting
the
the
talks
from
the
village
that
we're
at
to
the
back.
You
know
we're
at
rf,
village,
radio,
frequency,
village
and
then
being
able
to
having
essentially
the
the
thumbs
up
like
yes.
A
As
long
as
you
don't
look
like
you're
a
bunch
of
professional
av
people,
then
yeah
you
can
you
can
do
this
and
you
know
transmitting
the
the
video
from
one
village
to
another
using
the
things
that
we've
written
you
know
so
it'd
be
an
over-the-air
demo
of
of
what
we
do
from
one
village
to
another
and
that's
a
really
great
goal.
A
I
think-
and
you
know,
video
video
plus
audio
plus
you
know
metadata,
plus,
whatever
all
sorts
of
channels
that
that'd
be
fantastic
but
like
just
just
audio,
would
be
good
too
or
just
video,
video
plus
audio.
I
think
video
is
really
kind
of
a
killer
app
for
this,
but
yeah
because.
D
A
Yeah,
I
think
a
video
link
would
be
the
minimum
viable
product
for,
for
this
and
it'd
be
nice
to
okay.
So
if
we
can
get
that
working
then
and
add
more
to
it,
you
know
some
sort
of
like
statistics
from
the
ctf
as
a
sub
channel
would
be
pretty
cool.
D
D
A
But
it's
intermittent
so
so
it's
so
it's
a
good
thing
to
like
pop
up.
You
know
so
again,
a
user
interface
and
usability
challenge
that
that
I
think
we
would
relish
to
have.
But
first.
B
A
I
asked-
and
we
won't
know
for
months-
was
the
answer
so
we'll
just
plan
for
same
building,
because
looking
back
over
previous
years
same
building
same
floor
has
been
the
case.
So.
A
We
are
that's
true,
but
I
think
it'll
all
be
within.
If
it's,
if
it's
in
the
new
seizures,
then
it's
all
in
the
same
building
and
it's
going
to
be
all
in
the
same
conference
center.
So
so
I
think
it's
going
to
be
all
on
the
same
floor
and
that's
good
enough
for
me.
I
think
we
can
start
to
it
will
as
soon
as
we
know,
a
link
budget
or
as
soon
as
we
know
a
floor
plan,
then
we
know
a
link
budget.
A
Well,
we
had
a
really
good
time
at
hamcation
for
amateur
radio
themed
shows
it's
it's,
I
think
my
favorite
and
we
we
ran
a
a
track
for
on
friday.
Almost
all
day
we
had
all
the
slots,
except
for
one.
On
friday
we
were
able
to
follow
oxcom
in
a
great
presentation
from
them,
so
we
had
presented
a
variety
of
our
work.
On
friday,
I
was
able
to
speak
in
the
technology
track
at
the
arl
expo
on
thursday
immediately
before
the
show,
and
it
was
super
fun
and
the
audience
was
great.
A
I
got
to
show
off
what
we
did.
You
know
and
talk
about
sort
of
an
intuitive
approach
to
digital
communications,
and
then
saturday,
all
day
at
the
booth
was
really
remarkable.
We
talked
to
so
many
different
people
in
general.
The
show
was
extremely
well
attended
on
in
the
morning.
There
was
a
real
good
crowd
in
the
morning
and
then
lunch
dipped
a
little
bit
and
then
the
afternoons
were
lights
on
sunday
it
rained.
A
A
So
they
had
a
booth
to
our
left
and
then
tapper
at
a
booth
to
our
right
beyond
tapper
was
a
society
for
amateur
radio
astronomy
which
we
are
working
with
to
try
to
figure
out
how
to
set
up
an
interferometry
system
at
remote,
lab
south
and
the
advice
has
been
fantastic
and
there's
lots
of
people
that
know
lots
of
things
about
practical
interferometry
and
bringing
it
to
the
public
and
citizen
science
so
over
over
the
course
of
the
next
year.
We'll
be
we'll
do
doing
a
lot
of
that
yeah.
A
So
it
was
a
good
show.
It's
coming
back
from
from
kovid
and
was
was
really
well
run.
The
organizers
were
very
supportive
and
responsive,
and
we
gave
away
a
ton
of
t-shirts
and
lab
coats
and
other
items
at
the
prize
booth
at
hamcation.
So,
since
we
were
right
by
the
prize
booth
and
the
floor,
we
got
to
actually
see
people
picking
up
the
tie-dyed
t-shirts
that
we
ordered
for
free
and
donated
to
the
for
prizes,
and
the
response
was
really
quite
positive.
A
We
gave
away
patches
and
pins
and
had
lots
and
lots
of
good
conversations,
so
that
was
a
it's
a
first
show.
I
think
that
we've
done
in
two
years
and
the
one
of
the
fun
things
that
happened
is
that
our
booth,
which
has
been
into
shipping
containers
for
two
years
when
we
set
it
up
the
magnetic
panels,
the
graphic
panels
refused
to
uncurl
yeah
there's
the
shirt.
A
That's
one
of
the
shirts
that
we
gave
away
was
a
lots
and
lots
of
those
are
out
in
the
world
living
their
best
lives
right
now
and
there's
more
available
through
the
gold
medal
ideas
store.
So
we
get
a
cut
of
that.
It
helps
us
raise
funds
and
continue
doing
the
work
that
we
do,
but,
though
yeah
those
poor
little
graphics
panels
were
curled
up,
so
we
had
to
secure
them,
convince
them
to
behave
with
a
little
bit
of
gaffers
tape.
A
D
A
So
we're
looking
for
the
next
time
the
booth
will
make
an
appearance
we'll
be
at
defcon
at
the
oh
in
august,
and
there'll
be
lots
more
about
that
on
the
on
the
list,
so
anybody
that
that
can
come
to
las
vegas.
Yes,
it's
a
it's
a
big
trip
and
an
expense
and
all
that.
But
if
you're
in
las
vegas
in
august,
then
we
will
have.
A
A
A
A
All
right
cool,
thank
you
for
coming
to
the
office
hours
and
we'll
we'll
do
this
again.
I
try
to
I'll
try
to
do
this
at
least
once
every
couple
of
weeks
in
2022
or
upon
request,
and
anybody
can
do
an
office
hours
if
they
want
to
just
get
in
touch
and
we'll
coordinate
for
outreach
to
your
particular
project
or
your
particular
particular
area
of
interest.