FM Receiver user manual
RF Application Co.,Ltd. All rights reserved. Version 1.0 -Page 2-
CONTENTS
General Information
The RFM-1103xK is the latest in a series of receivers for demanding applications that
require exceptional sensitivity and selectivity. It is especially suited for repeaters, audio and data
links, packet radio, and remote control. The RFM-1103xK was designed to provide a single-
channel UHF FM receiver for reception in the VHF and UHF bands.
Installation Mounting
Some of support should be provided under the PC board, generally mounting the board
with 4 holds. The receiver board relies on the mounting hardware to provide the DC and speaker
ground connections to the ground plane on the board.
Electrical Connections
Power supply should be connected to the connector on the PC board with #4 wire, which
can be extended to a connector or feed through capacitors used on the cabinet in which it is
installed. Be very careful not to route the wiring near RF components on the board, for instance
underneath the board. The receiver operates on +13.6 – 18.0 Vdc at about 300 mA peak with full
audio. A well-regulated power supply should be used. Be sure that the power source does not
carry high voltage or reverse polarity transients on the line, since semiconductors in the receiver
can be damaged.
-VCC
+VCC
