There is only a link to them in description of the respective Radio protocol.
*
These items are active only when in Router mode
**
These items have to be set in accordance with the license issued by the respective radio
regulatory authority
Mode**
RipEX allows multiple settings of modulation parameters for every channel spacing to enable
different regulations which apply in different countries to be met. Naturally different limits on
transmitted signal parameters result in different Modulation rates.
The "Mode" menu conveniently groups the optimal settings for common internationally recog-
nized standards. The detailed technical parameters for each setting can be found in the
RipEX User manual.
List box: possible values
Default = CE
CE
Settings optimized for ETSI standards and similar.
FCC
Settings suitable for countries which follow the U.S. government group of standards.
NOTE: CPFSK modulations have approx. 20% higher frequency deviation compared to
CE, so the receiver sensitivity for the same modulation (data rate) is approx. 1-2 dB better.
Narrow
Special settings for extra-restrictive regulations.
NOTE: In the 25 kHz channel spacing, the RipEX transmitted signal 16kHz bandwidth
contains 99% of the total integrated power for transmitted spectrum according to ITU-R
SM328 . This setting is required for 25 kHz channel spacing by authorities in Czech Re-
public.
Unlimited
Full channel width used to achieve the maximum possible data rate.
Modulation type
List box: FSK, QAM
Default = FSK
FSK
Suitable for difficult conditions - longer radio hops, non line of sight, noise / interferences
on Radio channel...
NOTE: FSK belongs to the continuous-phase frequency-shift keying family of non-linear
modulations. It is possible to use higher RF output power (up to 10 watts) for these types
of modulation. Compared to QAM (linear modulations), FSK is characterized by narrower
bandwidth, a lower symbol rate and higher sensitivity. As a result, the system gain is
higher, power efficiency is higher, but spectral efficiency is lower.
QAM
Suitable for normal conditions offering higher data throughput.
NOTE: QAM belongs to the phase shift keying family of linear modulations. Compared
to FSK (non-linear modulations), QAM is characterized by wider bandwidth. RF output
power is limited to max. 2 watts. The spectral efficiency is higher, power efficiency is
lower and system gain is typically lower.
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© RACOM s.r.o. – RipEX Radio modem & Router
Advanced Configuration
Summary of Contents for RipEX
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