Rf Check With The Synthesizer Module; Transmission Channel Selection; With The Hfm-S Synthesizer Rf Module; The Rf Status Display (Red Led) - Multiplex ROYALevo 7 Manual De Instrucciones

10.4.2.

RF check with the Synthesizer module

If the ROYALevo is fitted with an HFM-S Synthesizer RF
module, you can activate an additional safety query (RF
Check 13.1.6.). In this case the transmitter does not
start radiating an RF signal on the displayed channel un-
til you have confirmed this query by pressing one of the
direct access menu buttons or the "ENTER" button.
If RF Check = ON, the following display appears when
you switch on with an HFM-S Synthesizer RF module:
Line 1 shows the set channel, line 2 the corresponding
transmission frequency.
For safety reasons RF signal transmission remains
switched OFF until you confirm the displayed channel /
transmission frequency by pressing any direct access
menu button or the "ENTER" button. Only then does the
last active status display appear, and RF transmission is
activated.
The "RF Check" safety query can be switched ON or OFF
as required ( 13.1.6.).
10.5.

Transmission channel selection

with the HFM-S Synthesizer RF
module
With an HFM-S Synthesizer RF module, the channel can
be selected very simply, conveniently and safely:
1. Hold the tool button L pressed in and switch the
transmitter on
You are now at the channel set menu,
RF remains OFF (LED glows constantly)
The following display appears:
You can now select the desired channel using the "L "
(UP) / "M " (DOWN) buttons or one of the two 3D digi-
adjustors. The corresponding transmission frequency is
displayed below the channel number.
2. Switch the transmitter off, then on again
(WITHOUT pressing the tool button)
The screen now displays the following:
- the number of the selected channel
- alternately:
the frequency of the selected channel
the reminder: "New channel!"
- the message: "RF activated"
- a bar display indicating the waiting period
RF signal transmission now remains switched off (LED
glowing constantly) until the waiting period (bar dis-
play) for activating the new channel has elapsed. During
this waiting period it is possible to switch off the trans-
mitter before an RF signal is transmitted, perhaps be-
cause you have accidentally set the wrong channel.
ROYAL evo 7 - Instructions
When the waiting period has elapsed, the last used
status display appears. The RF module is activated, the
LED starts flashing, and the transmitter is ready for use.
10.6.

The RF status display (red LED)

When the transmitter is switched on, the red LED (light-
emitting diode) constantly indicates the current status
of the RF module, i.e. whether an RF (Radio Frequency)
signal is being transmitted or not.
RF transmission ON:
The LED lights up for about 2 seconds at intervals to in-
dicate that the transmitter is ready for use, and is radiat-
ing an RF signal.
RF transmission OFF:
The LED glows constantly.
The transmitter electronics detect whether an RF signal
is being transmitted or not from the RF module's cur-
rent drain. If the current drain falls below a certain value,
the transmitter electronics "know" that an RF signal is
not being radiated with full power, or not at all ( ! in
which case safe operation cannot be guaranteed). This
method of testing is very safe, as it is also capable of de-
tecting faults and mistakes:
Is an RF module installed in the transmitter?
Is the RF module installed correctly in the
transmitter (contact fault)?
Is the RF module working properly?
Is a crystal fitted, and is it working properly
(only with the HFM-4 crystal RF module)?
Is the transmitter aerial present, and is it mak-
ing good contact?
If the ROYALevo is in use as a pupil transmitter (Trainer
mode) or is connected for diagnosis operations, or if the
transmitter is connected to a PC, then there will also be
no RF signal transmitted
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LED glows constantly.