Below is legacy information from our original implementation of
Since February 22, 2010, TRBO-6 and DCI has had
an EchoLink portal in operation. TRBO-Link is currently transmitting
main talkgroup "Comm 1" but is listening to several TG's on both time
Our "TRBO-Link" portal has provided solid 2-way "streaming" of our IPSC
network without any issues and is convenient for users out of the
service area of their local repeaters or those who have an interest in
TRBO and want to be able to listen in.
To try it out, simply
connect to: WB0VHB-L (484940) via your EchoLink station
Our thanks to Randy, WB0VHB, Iowa for
dedicating the control radio, EchoLink station, and the engineering time
to bring this project online.
restricted access on the EchoLink side to not allow any analog RF on our
TRBO network. No -L's or -R's are able to connect. But
stations running on computers as well as smart phones, iTouch's,
iPads, and Android products are able to listen to the TRBO network and
talk as well. We have these
limits in place to keep all EchoLink related tones, announcements and
analog RF noise off of the TRBO network. We hope to enable a very
transparent portal with respect to the TRBO side. This approach has
worked very well. TRBO-6 users now have the ability to connect to
any other EchoLink nodes or conferences via touch-tone which has been
available since the R01.07xx firmware upgrades though these capabilities
can inject analog noise and tones onto the TRBO network. If you
use this capability be aware that we do not want to listen to analog
noise so your use or misuse may restrict this access. This
additional feature is there for
priority or emergency traffic related uses primarily.
It is possible that we may further expand EchoLink
access allow Echolink connect and disconnect messaging. It is not
likely we will enable -L's or -R's EchoLink portals, but on a temporary basis, these restrictions may be relaxed for
demonstrations, networks or emergencies.
Portions of prior
discussion still of some interest
BENEFITS: The immediate benefits no
matter TS or IPSC is a 2-way half-duplex voice connection into the TRBO
system which approaches the audio quality of an all digital system.
Better yet, it enables another portal into the TRBO system which allows
the use of computers, iPhones (new app available) and even other analog
systems that have EchoLink access (if desired). This would expand
the repeater (or network) coverage essentially, to the entire planet.
We have that already in IPSC but it requires 8300's and client radios to
be as ubiquitous as computers and iPhones, and that just ain't the same..
EQUIPMENT: So the plan would require
dedicating a client radio (4300 as the lowest tier mobile radio), and an
EchoLink station (PC or laptop) with VA3TO interface.
ACCESS: Access to the "TRBO-Link" would
be enabled or restricted by a whitelist or country list. Typically it may enable
only EchoLink users (no -L's or -R's) and then possibly only TRBO-6 members who are
Echo-Link users. If repeaters or links, (even if sponsored by TRBO-6
members) were allowed access, it could inject normal analog system noise
and that might be objectionable. To compensate for this additional
noise or traffic, we could put the TRBO-Link on it's own TS2 Talkgroup,
IPSC enabled or not to limit bothersome noise on the TRBO side.
TRBO-6 Member access to TRBO-Link the other way could also be controlled.
MAXIMUM IMPLEMENTATION: At the other
end of the scale, TRBO-Link could sit full time on Comm 1 and be used just
as if another radio on the TRBO-6 network. EchoLink users would able to use the TRBO-6 Intercom for the widest
exposure. The controls for implementing this interface are good and
allow us to maintain a balance of security / talkgroup activity vs that
of the excellent potential for EchoLink to provide for more enhanced coverage areas when unable to
use TRBO client radios (out of range of the local repeater or it's
network). This would also reduce the need or desire to implement
streaming audio onto the Internet. A measured approach, initially
restrictive, relaxing over time as we determine how best to fold this
a repeater or the TRBO-6 network.
If you have a tip or
Email your tip