RTX-868-NB
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User manual
The technical features can change without forecasting. AUR°EL S.p.A doesn’t assume any responsibility of damage due to the improper use of the device.
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AUR°EL S.p.A.
Via Foro dei Tigli, 4 - 47015 Modigliana (FC) – ITALY
Tel.: +39.0546.941124 Fax: +39.0546.941660
http://www.aurelwireless.com
- email:
Preliminary 19/03/2019
Pag
7
di
8
Ground:
The ground must surround at the best the welding area of the module and must also be realized in the
lower face of the PCB in order to obtain the optimal result, with the through holes connecting the two
ground planes.
Antenna:
Connect pin 1 (antenna) to the coaxial connector or antenna, with 50 ohm constant impedance microstrip
width 3.2 mm for PCB with thickness 1.6 mm and width 1.6 mm for PCB with thickness 1mm.
The antenna is a typical rigid copper wire (insulated or not) of 8cm length and cross-section at least of 0.5
mm² placed vertically to the ground plane. Other placements of antenna (bend, coil) will work but
performance are not predictable.
As an alternative to connect the module to an external antenna, connect an SMA connector into PCB using
50 ohm microstrip line.
Reference Rules
RTX-868-NB transceiver is compliant with the european set of rules
EN 300 220-2
, and
EN 301 489-3
.
The transceiver must be supplied by a very low voltage safety source protected against short circuits.
The usage of the module is foreseen inside enclosures that guarantee the
EN 61000-4-2
normative not
directly applicable to the module itself.
This device is compliant with
EN 62479
, connected to the electromagnetic field human exposition, if used
with temporal duty cycle not higher than 1% like foreseen in CEPT 70-03 recommendation.
CEPT 70-03 Recommendation
RTX-868-NB
recommendation is referred to the 868.0 - 868.6 MHz harmonized bandwidth and therefore, in
order to comply with local regulations, the device must be used on the time scale with maximum duty-cycle
time of 1% (equivalent to 36 seconds of usage on 60 minutes).
