AUREL RX-AM4SF Instruction Manual

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RX-AM4SF Receiver
The super-heterodyne receiver RX-AM4SF can provide a RSSI output indicating the amplitude of
the received signal: this output can be used to create a field-strength meter capable to indicate the
distance of the transmitting unit.
Furthermore the RX-AM4SF allows you to select the sensitivity level at which the module must
operate: setting it in a low-sensitivity condition (- 90 dBm) the receiver provides at the RSSI output
a proximity indication, that is not possible at high sensitivity due to the unavoidable saturation of
the receiver; this feature can be useful when you intend to realize equipments for access control
where, besides an identification code, you must also recognize the distance of the transmitter from
the opening under control.
Pin-out
Connections
Pin 1
+V Preamp
Pin 2-7 Ground
Pin 3
Antenna
Pin 15
+V
Pin 11 Gain
Pin 13 RSSI output
Pin 14
Data output
Le caratteristiche tecniche possono subire variazioni senza preavviso. La AUREL S.p.A non si assume la responsabilità di danni causati dall'uso improprio del dispositivo.
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AUREL S.p.A. Via Foro dei Tigli, 4 - 47015 Modigliana (FC) – ITALY
Tel.: +39.0546.941124 Fax: +39.0546.941660
http://www.aurelwireless.com
Positive voltage supply +5V ± 5%.
GND
Antenna input, impedance 50 ohm
Positive voltage supply +5V ± 5%.
Sensitivity Level Selection:
Logic level 0 : -109 dBm.
Logic level 1 : -90 dBm.
Output RSSI proportional to the amplitude of the input signal.
Data output from the receiver.
- email: rfcomm@aurel.it
Instruction Manual
Lot (Week/Year)
Code
15
1
RX-AM4SF
15/02/2005
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