ARF7419A ADEUNIS, ARF7419A Datasheet - Page 8

• Manufacturer Part Number: ARF7419A
• Description: MODULE, ARF44
• Manufacturer: ADEUNIS
• Type: Modem Moduler

Specifications of ARF7419A

• Modulation Type: FM
• Data Rate Max: 19.5Kbps
• Sensitivity: -103dBm
• Supply Current: 36mA
• Features: Two-way Digital Link Over 300m, 19.2kbps UART Data Rate, Data Transmission Via UART Serial Interface
• Rohs Compliant: Yes

Channel selection
The S200 register allows choosing the desired channel.
Antenna requirements
This module is not available with printed antenna. An external one has to be
added to achieve correct communication between the products. Several
possibilities:
The best technical/economical compromise is a ¼ wave (8.6 cm length)
antenna soldered on the “mother board”. The link between the RFin_out pin
of the module and the antenna should be a 50Ω line. The larger the ground
plane around the antenna, the more efficient and "isotropic" it will be.
If necessary, this antenna can be distant thanks to a coaxial cable connected
to the “mother board”; the line must be a 50Ω line.
Ref. 08-07-V5-lmn
Channel
S200
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Frequency
(MHz)
863,25
863,75
864,25
864,75
865,25
865,75
866,25
866,75
867,25
867,75
868,25
868,75
869,525
869,75
A
RF44
User Guide
p. 6
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