Pacific Research Solutions RI-1 User Manual
Page 65
Pacific Research Solutions
RI-1 and PE-1 User Manual
Page 59
SECTION 14
LINKING and REMOTE BASE
Linking is a method of connecting two different repeater sites using simplex or full duplex radios. Link radios are not intended
to be used as user inputs nor outputs; they are simply a dedicated radio path between repeater sites. If you intend to control one
site from another, you should only consider using full duplex link radios. Linking with simplex radios only works best for
communication from site to site without controlling. The following shows four typical examples of linking, but the RI-1 and
RI-300 controller is not limited to these examples.
EXAMPLES OF LINKING
In our first example, two sites are able to communicate to
each other on a simplex single channel link. This example
is simple and low cost, but user commands or control
functions are not easily passed from site to site. This type
of link is reserved for an application where independent
repeater sites want to communicate to each other but control
functions will not be passed between sites. A typical
amateur application is one in which two or more UHF
repeater sites (440-450 MHz) will communicate with each
other on 2 meters, e.g., 146.460 MHz.
Our next example is the same as the first, except we have
used RI-1 controllers in place of PE-1 port expansion. You
could also have used the RI-1 for the main repeater port.
This example, as well as the first, can be modified to
support a full duplexed link.
In our next example, site 2 is
using a full duplex link
repeater as a link hub. All
other sites use a simplex link
radio to communicate with
each other through the link
repeater, site 2. In this
example, the link radios at
site 1 and 3 can be
configured in either manner
as shown by the first two
examples. Communication
occurs in the same way that mobile users would access an ordinary single repeater to communicate with each other. In this
example, all sites can perform control functions on site 2. The main limitation is that site 2 cannot easily control site 1 nor 3.
And the audio from multiple sites cannot be mixed throughout the system.