WWW.ICS-CTRL.COM
USER MANUAL FOR HARDWARE REV 3.11
07-APR-2018
PAGE 1
PI-REPEATER-2X
HARDWARE REVISION 3.1
1.
WELCOME
Thank you for purchasing the PI-REPEATER-2X, the first
repeater controller board designed to be powered by the
ubiquitous Raspberry Pi computer systems.
This little piece of hardware mates to the Raspberry Pi just
like any other daughter card you may have used for the
Raspberry Pi, Arduino, or other development platform.
This system enables you to have a variety of control options
for your station, including simplex, duplex, 2 independent
repeaters, a voting station, etc. Anything you can imagine
that can be done with 2 receive radios and 2 transmit radios
is possible.
We use multiturn potentiometers for fine adjustment of the
audio, offer hardware pre-emphasis filtering, active high /
active low selects for each COS / CTCSS input signal, and
have inputs tolerant to 18Vdc for the signals coming from
the radio.
This board will work with any software that is capable of
interacting with the sound card, and GPIO (I2C required)) for radio interfaces. We recommend getting
started with SVXlink, but the choice is ultimately yours! Feel free to experiment and decide which
system best fits your requirements.
