Hi everybody!
Here is DroneAdventures
and today
will be not usual video
it will be about technical moments
I bought Crossfire Light
few month ago
and wanted to compare it with microTX
in side of
stability of
150 Hz
Is there any reason etc
I will remind
that microTX with default firmware
has power 250 mW
And light is the same with Crossfire TX
but without bluetooth
500 mW
without external power
and 2 W with external power.
I found
some interesting
"not bug but a feature" while testing
I will tell you about it.
And
I chose abandoned pension
where I flew
for a few times for testing
because it's perfect for such testing
there is a lot of concrete
a lot of rooms where I can fly into
and fly away :)
It's perfect
to check penetration of crossfire radiowaves
lose of beacons etc
Let's begin with unpacking!
Let's check antennas!
What frequency it made for
And then we will
begin
testing
Let's turn on SWR meter
turn to
frecuency checking mode
And what we see?
Perfect for Russia -
868 MHz
and
real frequency
is
866 MHz
Yes
866, near it
So this antenna is really not bad
not perfect but
not bad for
Russia
Let's check
antoher antenna from
TBS but stright
Will turn on it
let's check
It's
of course
some better but it's perfect
for
8...
897
MHz
Yes
So
we can summarize that
antenna is
that we need
then
we will compare
MicroTX
and
I took second Taranis
and will
install
there
Lite TX
So I took 2 Taranises
One with LiteTX
second with MicroTX
and one drone with 1.2 GHz video
and now
will fly
with changing
Crossfire
and testing LQ
And now
about Taranis setup
I displayed
this information
This is
frequency, 1 is 50 Hz
2 is 150 Hz
This is LQ
begins working
when frequency is 50 Hz
and after
....
LQ will not
drop lower than critical
so we will see just on
frequency
No I will show you not a bug but a feature
Here is 2 Taranises
and a copter
Turn on power
as we can see
copter works with this taranis
now turn off
this Taranis
power off copter
turn on bind mode it second Taranis
than power on copter
and what happenes?
oops ;)
flashing begun!
one moment
crossfires must have
different firmwares
because with the same firmware it not working
when
firmwere is different even one point
it's possible
to bind drone to another
crossfire
distance between drone and Taranis
is not influence on anything
One moment
that
binded Crossfire must
be turned off
It's flashed as we see
now it will reboot
reciever
and will work
Oops ;)
Rebooted
This Taranis works
This Taranis not
And now
will continue testing!
Where is my drone????
OOPS!
Here it is!!!
It's OK!
What conclusion cann we do?
Croosfire LiteTX and CrossfireTX
is not first need thinf for race drones
Do we need Crossfire?
I answered it
earlier
YES!
For example in this building
I lost radio after 2-3 walls with 2.4
And with Crossfire
I can fly behind building
without any problems
another side
500 mW against 250 mW
didn't give any profit with LQ
by the way
I tryed 2W with external power
without video recording
and had
the same result, frequency
went to 50 Hz after
first wall
so
it's not a reason to change MicroTX to another
But there is another reasons
first is 500 mW and 2W
more stable while flying far
tooo far
in radius of a few kilometers
even 10 km MicroTX is enough
but
LiteTX and
CrossfireTX
have some itneresting function
It's beacon mode
To use it turn joystick to the left
then
it seems it goes to low power
mode and bearing
reciever
so
it's easy to find copter
wich is deep in snow or somewhere
where we can't hear buzzer and see it
or if we lose buzzer
So it's really usefull in snow!
So
it seems I told everything
what I wanted to tell
Thanks for watching!
Thumbs UP!
Subscribe!
Comment!
Good bye!
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