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7.11.4 PPM setting
7.11.5 RF firmware updating
7.11.6 RF version
To upgrade the RF firmware . It is only available when
the RF type is set to FRM301.
To View related information about RF module.
Function setup:
Click
RF version
, the related information is played on
the screen.
Function setup:
1. Tap
RF firmware
.
2. Click
Yes
on the pop-up interface to enter the
updating state.
Function setup:
1. Tap
Signal polarity
to set the the signal polaroty,
"
√
" means the signal is postive.
2. Tap
Numbers of channels
. Then click
+
/
-
to set
an appropriate numbers of channel.
3. Click
Period
. Then click
+
/
-
to set an appropriate
period value.
4. Tap
Starting level
and click
+
/
-
to set an
appropriate value. Then click to return to the
previous interface.
When
PPM
is selected for RF type, a PPM setting
function appears in the RF setting interface, where you
can set the parameters related to PPM signals.
Signal polarity
: By default (positive), high-level stands
for valid signal. Some devices may require low-level
for valid signal. Set the signal polarity to negative, and
low-level represents valid signal.
Number of channels
: To set the number of channels in
one PPM signal. By default, each PPM signal contains
8 channels. You can set the number of channels as
required.
Period
: The time consumed to send a PPM signal. The
period of standard 8-channel PPM signal is 20ms. For
fewer channels, you can set shorter periods. As the
required time to send a signal is shorter, the delay is
reduced. In period setting, you shorten the time of idle
periods only, not that of the effective signal. Therefore,
setting a shorter period will not reduce the number
of signal channels. When the number of channels
increases, and the transmission time of effective
signals exceeds the period, the system will minimize
the idle periods when processing the signals, and the
interface setting will not change accordingly.
Starting level
: Identifies the start index time of PPM
signals. The default value is 400 us. You can set an
appropriate value from 100us to 700us as needed.
⑴
⑶
⑷
⑵
⑴
Tap to switch the signal polarity.
⑵
Tap to select Number of channels.
⑶
Tap to select Period.
⑷
Tap to select Starting level.
