Description Of Features; A Standalone Repeater; Half-Duplex Or Full-Duplex Link; Control Receiver - Arcom RC210 Hardware Manual

Description of Features

The RC210 provides 3 radio "ports", each of which may be operated independently or in unison with the others. With simple
programming, each port can be configured as follows:

A Standalone Repeater

A signal received on that port's receiver is retransmitted out that port's transmitter. Each port has its own independent hang
timer, timeout timer, 10 courtesy tones and dedicated DTMF decoder, so you may operate one RC210 to control 3 independent
repeaters. On command, any port may be tied to any other port for linking purposes.

Half-Duplex Or Full-Duplex Link

If a port is configured as half-duplex, a signal received on that port's receiver is NOT retransmitted out that port's transmitter.
Through DTMF commands, the receiver's COS (and CTCSS signal, if so equipped) and audio is routed to either - or both - of
the other ports. This is useful for linking to other sites or connecting your system to an EchoLink©, IRLP© or other such system.

Control Receiver

Because of the RC210's ability to control any Port from any other Port, there is no need for a special, dedicated control receiver
port. By using the right combination of Macro Functions, you can easily and quickly disable or enable any function the RC210 is
capable of performing. For example, you have a repeater on Port 1 and a link on Port 2.

Remote Base

Any port can be used for a remote base - a half-duplex (or simplex) radio connected to the repeater system that allows the
repeater users to remotely operate on a different frequency/mode/band than the repeater. Frequency, transmitter offset and
CTCSS may all be remotely programmed over the air. The RC210 also supports control of Kenwood mobiles that provide for
DTMF control through their microphone port. The complete list of supported remote base radios can be found in Appendix A.
Regardless of how you configured a port, each one provides all signals needed for the radio connected to it (COS, transmit and
discriminator audio, CTCSS encode and decode). You have a choice of either DB9's or RJ45 modular jacks as your radio port
connector. COS and CTCSS decoder input polarity is selectable through easy-to-use push-pin jumper blocks, so the RC210 can
accommodate just about any radio available.
Audio gating is provided on each radio port so you may obtain audio directly from the receiver's discriminator without the worry
of finding a source of gated audio in the receiver. De-emphasis is also provided on each port. However if you don't need de-
emphasis on any particular port, it's a simple matter to change a jumper (no soldering required) and obtain "flat" audio (20 hz to
15Khz) throughout the audio chain. The use of low-noise JFET operational amplifiers ensures good gain, high input impedance,
and very clean audio.
DTMF tones are normally muted on ALL ports however you can turn off muting on a port-by-port basis. This allows for passing
DTMF tones out a link.
Any port can be used for entering DTMF commands, even programming commands for other ports. Since each port has its own,
dedicated DTMF decoder, a command can be entered from any port uninterrupted regardless of activity on other ports.
Many timers are provided, such as repeater transmitter hang time, timeout, ID intervals, how long the cooling fan should remain
on after the transmitter unkeys, and more. These timers are remotely programmable.
The RC -210 incorporates true human speech. A custom, repeater oriented vocabulary is provided for use in IDs, alarm and
other controller messages. In addition, the on-board digital voice recorder allows the recording of up to 20 custom recordings
which may also be used in these messages.
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