has made many enhancements to the Software of the
DX8 over previous models. The devil is in the details.
Such as being able to select a different model without
having to power down the radio, holding the necessary
buttons down to enter system setup and reselecting
a different model. Changing models now can be accomplished
with the radio on. Simply pressing the clear and
back buttons simultaneously enters the software
into the model select section. Then scroll to select
the model and confirm the selection.
System setup screen is clean, well organized and
easy to navigate using the rolling selector without
ever picking up the manual. When you enter the system
setup (by pressing the Clear + Back buttons while
powering on) you are presented with the top level
of the programming menu. The options are Model Select>Model
Type>Model Name>Wing Type>Switch Select>Trim
Setup>Model Reset>Model Copy>Warnings>Telemetry>Frame
Rate>Trainer>System Settings>Transfer SD
Model select gives you the choice of 30 in memory
models that you can choose from. These models are
default set to Acro (plane) however can be changed
to Heli from the Model Type menu once selected.
The DX8 features ModelMatch which is an embedded
code transferred to the receiver once binding occurs.
This protects the model and owner from attempting
to operate one aircraft from another aircrafts memory.
If a wrongly selected model is chosen, the response
is no response at all. The receiver will not connect
thus alerting the user there is a problem.
DX8 provides two model types. Airplane and Helicopter.
When setting up a new model, always choose the Model
type first. This is due to additional options provided
when choosing Helicopter over Airplane. The Helicopter
mode in the System setup provides you with Swash
Type and F-mode as well as additional Heli setup
options in the function mode menu.
Model Name settings provide you with the option
to name your model with up to 10 characters using
Uppercase, lowercase, numbers and symbols. This
model name is presented on the main screen for a
visual representation of the model the radio is
fell in love with this visual menu. Here you are
provided with a visual representation of both the
wing type and tail type. There are eight different
wing types to choose from as well as five different
tail types. The visual aspect makes short order
in choosing your setup as well as getting it right.
you would like to rearrange the switch locations,
you can do that here. For example, if you are not
using the F-mode switch and would like to move the
Gear switch forward for easier access, then you
simply program the Gear switch to inhibit and the
F-mode to Gear. Likewise, if you wanted to move
your Gear to the right side instead of it's current
location on the left, reprogram it to the AUX 2,
AUX 1 or knob switch. Nothing like having options
to fit your preferences.
This menu item allows the user to adjust the â??Per
click of trimâ?? to adjust the amount of servo movement.
I have flown a new model and found that I donâ??t
have enough trim that I need to adjust on that first
flight. It might be due to the model being out of
balance laterally or being nose heavy or tail heavy
because I guessed at the CG. Having a large trim
step at the beginning allows me to make adjustments
and fine tune the trim for more precision later.
is exactly what you would think it would be. Selecting
this will reset the selected model to factory settings.
Use caution with this menu item. It will unbind
your model, reset the settings and is unrecoverable.
previous radios I have used, this feature was handy
to reorganize models in the memory to keep plane
type grouped or preserving set up of an aircraft
before experimenting with changes.
mentioned earlier, this is where things get interesting.
The DX8 has the ability to warn when switch settings
or throttle settings are set to an unsafe or undesired
position when the transmitter is turned on. Not
only will the transmitter display these on the screen,
it will also sound an alarm/vibrate and no transmission
will occur until the switch or throttle is positioned
correctly. This is a beautiful failsafe.
menu item allows the user to select between 11 ms
and 22 ms frame rates. 11 ms is an extremely fast
frame rate and is typically used with digital servos.
If analog servos are being utilized the user can
manually adjust this setting to 22ms. Some receivers
are designed for high frame rates and if you find
that your analog servos arenâ??t working properly,
the adjustment can be made here.
DX8 allows this function to be programmed to three
This feature allows all or individual channel controls
to be transferred to the slave radio. This is beneficial
so that the student radio can control specific channels
to learn those controls while the master maintains
control of the remaining channels.
This feature allows the student radio to control
stick functions. Aileron, Rudder, Elevator and Throttle
only are allowed, while switch settings such as
dual rates or expo are maintained on the master.
This sets the DX8 as the slave when using another
radio when the master radio has activated its pilot
link. This eliminates the need to match programming
between the Slave and Master. Ie. Reversed servos,
settings provide general setup options. Such as
programming a user name that will be displayed whenever
the radio is turned on. This provides an easy identification
when there are multiple DX8 transmitters at the
field. Ever grabbed the wrong radio? Yeah, me too.
This menu also allows the option of screen contrast,
language, mode and transmitter battery type (Nimh/Lipo)
Transfer SD card
is an area that the DX8 really shines. The included
128mb SD card allows the user to import or export
models as well as updating the radioâ??s firmware.
Providing the ability to share models between other
users who also utilize a DX8, backing up model programming
before trying out new settings.
At the time of this writing, there was an update
to the firmware from 1.04 to 2.01. The update was
so easy it was ridiculous. I simply downloaded the
firmware update from www.spektrumrc.com , copied
it to the SD card, reinserted the card and booted
the radio on. The DX8 took it from there and automatically
updated the firmware to 2.01.