NXCore Manager

I’m pleased to announce the first release of NXCore Manager, an open-source software solution to provide talkgroups for NXDN Amateur Radio networks.  NXCore Manager is currently routing all of our networked repeater traffic in CT.  We are anticipating several additional repeaters linking with the two we currently have up and running as part of “Project 9K”.  Project 9K is our efforts to create Talkgroup 9000 (based on the FIPS code for CT) as a statewide talkgroup, while preserving access to Talkgroup 65000.

The NXCORE software allows for repeaters to receive and transmit multiple talkgroups.  For instance at a future time in CT, we may want to use (as an example) Talkgroup 9001 for Western CT, 9002 for Eastern CT, etc.  This will combine NXDN’s already efficient 6.25KHz bandwidth with efficient use of repeaters.  In order to talk to someone within CT over the network, you no longer have to tie up the whole 65000 Talkgroup in order to do so.

The software can be compiled on UNIX and UNIX-like machines.  It uses the C++ language, mostly for the C++ Boost libraries that shorten development time needed for parsing configuration files.  There are two versions of the software that should work identically — one is for Kenwood repeaters, and the other for Icom.

Documentation can be found at:  http://tinyurl.com/nxcore-doc-1

A zip file with the source code for both Icom and Kenwood can be downloaded at:  http://tinyurl.com/nxcore-1-0

The source code repository is at:




I am willing to work with anyone interested to get a regional node set up.  While I am currently running a node for CT, I believe it is wise for each state / region to have their own NXCORE if interested, because the local groups know best what talkgroups make sense for their area.  However, I am proposing (and hosting at this time) two new national groups:

65003 – Kenwood National Net

65002 – Icom National Net

Right now there really is no activity on the new talkgroups, since I’m just announcing it.  If you are interested, let me know.  An important note is that this is a “work in progress”, and there are more than  likely some bugs with the program.  With testing and feedback from users, I’m hopeful this will become a very useful tool for many of us.

My email for contact about this is ‘support at rtcubed dot com’.



NI4CE – Verna status update

The new NI4CE NXDN Repeater at Verna went on the air at 3:20 PM this afternoon.  The repeater is operating on 444.3125 / 449.3125 RAN 1.  Some tweaking to connect the repeater to the NXDN Worldwide Network is still needed but should be completed in the near day or two.  In the meantime, we invite you to use the repeater on a local basis (TG1200).

We would also appreciate your signal reports.  Send your Callsign, Location, Time of Day and Signal Strength (if you can read RSSI with your radio) to info@ni4ce.org.

73 de Paul-NB9X

New Repeater coming on line in South West Fla. and 1 on the East Coast

From Paul Toth; NB9X

It seems like we started talking about this a long ago.  But the new NI4CE NXDN Repeater at Verna is poised for launch next week.  The repeater and its several components have been assembled and are burning in.  The new Telewave Antenna that will radiate the signal from 500′ AGL is configured and tested.  And a tower crew is scheduled to put it on the tower this coming Monday.  Of course, everything in Florida this time of year is “weather permitting”.

RX 444.3125  TX 449.3125 RAN-1 are the important numbers to program into your radio.  TG 1200 will keep your traffic on the NI4CE system (Verna and Riverview).  TG65000 will gate you to the remainder of the NXDN Worldwide Network.

Keep watching here for updates.
73 de Paul-NB9X

editors note Verna is located in Sarasota County near the town of Myakka City.

And this nice report from Ed in Brevard County Fl had this to say earlier also when repling to Paul

“Great news, we are trying to setup one here in Brevard. I think we found a tower. Will let you know once we get further information.”


Mount Uncanoonuc, Manchester, NH on the air

The UHF repeater (443.400 +5 MHz), an Icom FR6000, was installed yesterday on Mount Uncanoonuc just outside of Manchester, NH. We did not get it connected to the network yet, but that process starts today. The plan is integrating into the Massachusetts hub in Swansea, MA.
Please send feedback if anyone detects any glitches such as one way audio and so forth.
John N1OTY

Identification Solutions for Kenwood NXR series repeaters

Cliff, K1IFF, and myself authored a proposal for two ways of generating a digital ID that are less disruptive and in the spirit of experimentation with NXDN.  Click the “MCW ID fix v4” link below to download the PDF.  In CT, we have found that the analog ID takes far longer than sending a short Over-The-Air Alias digital burst.

73, Bob, N1XDN

MCW ID fix v4

NXDN Transparent Mode Program (Chat)

From a Radio Reference user, this is a pretty simple program that makes use of the Kenwood Transparent Mode using text (or SMS) and can send text files to and from
other users or stations.
Installation starts off in Spanish, but the program itself is English.

Let me know what you think.



Icom Repeater Setup Info Guide

Good evening,
I wanted to include to the links list, the Icom Repeater Setup Guide from our friends in the Northeast Corridor Group, www.nxdnradio.com

They have a very nice layout on setting up your Icom Repeater(s) and getting onto the NXDN Reflector network. Please be sure you have signed up on our yahoo email group
ham_nxdn at yahoogroups dot com to follow along with the progress of the network.
Spread the word to your friends in the West, would lover to see more West Coast activity.

Have a great week.

Evans M

Next version of Kenwood’s NX-5000 Series due out soon

The next firmware update for the NX-5000 series is due out within the next few weeks. This will have a minor bug fix and several expansion items being added to the radio. 2 weeks ago, I submitted a volume bug to Kenwood on the enhanced control head, and that
was validated and sent on up the line for correction. Now from what I am being told, this next release is supposed to contain the following, multi RF DECK control, and adding the NX-5900 to the software KPG-D1NK. There are a few other tweaks that will also be put into the Version 1.60 also.

I have all the information, fought tooth and nail for it, on obtaining WIDE BAND software for the NX series radios. You will have to pay full price for the software, even if you already bought the NARROW version. There is no way around that. To obtain the wide band version from the GET GO you have to order it from your dealer DIRECTLY. Even I get pickled for my copy. Kenwood says so, so that is the word.

Anyone who has purchased the new ICOMS let me know, like to find out
about the OTAA on them.
More updates as they come.

Evans M.

Icom Type C Radio Information

Well, I have a few to list on the newest Icom to come out.
The radio is pretty much like the ones out now that are Type D trunking but these units now act like the Kenwood’s to a degree.

Product info is at ICOM

For the most part, this radio is Conventional and Type C Trunking platform ready.
For those of us who use Kenwoods and Over the Air Alias, this radio will encode and
decode the OTAA, as will the Kenwoods. (the Type D Icom’s however will still act funky
with the OTAA even with the Newer Icom units) The mobiles come with GPS installed,
but you have to order the antenna if you do not have one for it.
How the GPS on these units and on the Kenwoods play out for the NXDN REFLECTOR
network, that has to be worked on still. The main issue is getting a program designed to
code out the GPS and send it to APRSd with a numerical / callsign database to proper
APRS position marker.

I have not had a chance to work on one yet, but I would imagine it will be like any other
Icom software wise. When I can, I will post information as I go along with looking one over.
For the most part, now the statement of two business units making a inter-operable radio
is now very true. Rather it is type C or D, both still carry the NXDN CAI in conventional modes, and they can both work side by side on the NXREF network.

Got a lightning storm in the area, so this is it for now. Enjoy!