RX-8L50SA70SF
Instruction Manual
The technical features are subject to change without notice. AUREL S.p.A. does not assume responsibilities for any damages caused by the device’s misuse
.
AUREL S.p.A.
Via Foro dei Tigli, 4 - 47015 Modigliana (FC) – ITALY Rev. A, February 1st 2002
Tel.: +390546941124 – Fax: +390546941660 Pag 3 of 4
http://www.aurel.it
- email:
50 Ohm line:
1. It must be the shortest as possible.
2. 1,8 mm wide for 1 mm thick FR4 printed circuits and 2,9 mm wide for 1,6 mm thick FR4 printed circuits.
On the same side, it must be kept 2 mm away from the ground circuit.
3.
On the opposite side a ground circuit area must be present.
Antenna connection:
1. It may be utilized as the direct connection point for the radiating whip antenna.
2. It can bear the connection of the central wire of a 50
Ω
coaxial cable. Be sure that the braid is welded to
the ground in a close point.
Antenna
1. A
whip
antenna, 8,5 mm long and approximately 1 mm dia, brass or copper wire made, must be
connected to the RF input of the receiver.
2. The antenna body must be keep straight as much as possible and it must be free from other circuits or
metal parts (5 cm minimum suggested distance.)
3.
It can be utilized either vertical or horizontal, provided the connection point between antenna and
receiver input, is surrounded by a good ground plane.
Other components:
1. Keep the receiver separate from all other components of the circuit (more than 5 mm).
2. Keep particularly far away and shielded all microprocessors and their clock circuits.
3. Do not fit components around the 50 Ohm line. At least keep them at 5 mm distance.
4.
If the Antenna Connection is directly used for a radiating whip antenna connection, keep at least a 5 cm
radius free area. In case of coaxial cable connection then 5 mm radius will suffice.
Reference Rules
The
RX-8L50SA70SF
receiver is EC certified and in particular it complies with the European Rules
EN 300
220-3
for class 2, and
EN 300 683
for class 1. The equipment has been tested according to
rule EN
60950
and it can be utilized inside a special insulated housing that assures the compliance with the above
mentioned rule. The receiver must be supplied by a very low voltage safety source protected against short
circuits The use of the receiver module is foreseen inside housings that assure the overcoming of the rule
EN 61000-4-2
not directly applicable to the module itself. In particular, it is at the user’ s care the
insulation of the external antenna connection, and of the antenna itself since the RF output of the receiver is
not built to directly bear the electrostatic charges foreseen by the a.m. rule.
