System Upgrade Interference

Since last weekend’s system upgrade, you may have noticed interference on the repeater system from Mexican taxi drivers. We believe we have narrowed down the interference to the 70cm link radio at Alamo Peak. Plans are in work to reprogram the link radios on the system this weekend to eliminate the interference.

Users of the James or Weed repeaters may also notice significant receive audio degradation from users entering the system from Alamo Peak. We believe this is due to the last minute substitution of an out-of-band link radio at James Ridge after discovering the primary link radio had experienced catastrophic failure in the PA circuit. A replacement radio is on order and the planned site visits this weekend to reprogram the link radios will also include replacing the under-performing link radio on the Alamo-James link, provided the replacement radio arrives in time.

Please note any other performance or audio issues you experience with the upgraded system and notify me via email.

System Update

As of 2000 MDT tonight, the SMRC club radio system has been upgraded at all three sites with Yaesu DR2X repeaters on 2m. The upgrade should correct the issues the system has been having with the link radio at James Ridge, and analog linking was tested across the whole system with no issues noted.

The upgrade also brings C4FM to all three repeaters sites; however, digital linking is still a work in progress. Each individual site will repeat both analog FM and C4FM transmissions, but only the analog transmissions will link to all three sites.

NOTE: As part of the system upgrade, the PL tones to access all three system repeaters has changed to 151.4 Hz. Regular users of the system will have to reprogram their radios to reflect this change.

An additional part of the upgrade was adding a PL tone on the output of each repeater. Analog FM users who do not want to listen to the audio of digital system users can simply set a PL tone of 151.4 on their radio receive, as well as transmit, and it will prevent any digital signals from breaking squelch, as digital is transmitted from the repeater with no PL tone at all. In addition, users who have a Busy Channel Lockout (BCLO) feature on their radios are encouraged to use that feature, as it will prevent analog and digital users from transmitting on top of opposite mode transmissions.

The Repeaters section of this website has been updated with the new repeater programming data, so reference that page for detailed information on system configuration.

Note any issues with the new system over the next few weeks and be prepared to discuss at the September club meeting.

Thanks to Bill, KI5J, for his assistance in getting everything transitioned to the new repeater radios, as well as the technical work behind the scenes to make it happen. Enjoy the new radios!

Experimental AllstarLink On-Air

If you’ve been hearing more than the average number of DTMF tones on the repeater system lately, it’s likely because an experimental implementation of AllStarLink is now running on the SMRC linked repeater system.

AllStarLink is an analog FM linking capability which uses on-air DTMF tones to connect & disconnect from other system nodes via the internet. For those familiar with Echolink, AllStarLink provides similar functionality at a basic level, but allows some significantly more complex configurations when fully integrated. In fact, once the AllstarLink system is fully implemented, the SMRC repeater system will provide both Echolink and AllStarLink connectivity.

The experimental implementation provides basic AllStarLink connectivity. The following control codes can be used to interact with the system:

  • *3 + ASL Node Number = Connect to remote node
  • *2 + ASL Node Number = Connect to remote node (monitor only – no transmit)
  • *1 + ASL Node Number = Disconnect from remote node
  • *721 = ASL Link Radio ID
  • *722 = ASL System Current Time
  • *806 = Disconnect all links

Users are encouraged to test the system and provide feedback via email to my call at gmail.com. Adjustments to system audio, implementation of location announcements, periodic audio QST’s, Echolink implementation, and a nationwide VOIP autopatch are just a few of the system capabilities currently in work.

For a list of nodes to which you can connect, visit the AllStarLink node list and look for node numbers listed in green squares. A filter function at the top of the list allows you to search for specific callsigns, node numbers, and locations.

Have fun with AllStarLink, and watch this news feed as we bring more features to the system in the near future!

KE7KUS

Repeater System Upgrade

The Club is currently in the process of upgrading its linked repeater system to provide both analog and digital FM capability. In late 2017, the Club purchased Yaesu DR-2X repeaters to replace the current Kenwood TKR-750/850 units which have been in service for over 10 years:

Yaesu DR-2X Repeater
Yaesu DR-2X Repeater

The new repeaters provide traditional analog FM service, as well as seamless integration of Yaesu’s C4FM digital technology, currently marketed under the System Fusion label. In addition to providing crystal clear digital voice, the Yaesu system will also provide a 12.5kHz bandwidth digital data network with a data rate of 9600bps anywhere a user can access one of the system’s linked repeaters.

The current upgrade plan includes replacing the repeaters at all three current sites: Alamo Peak, James Ridge, and Weed Lookout. Digital back-hauls will be implemented between sites to provide site linking. In addition, the Club is currently investigating a partnership with the Otero County Electric Cooperative to provide 2m repeater service in the Timberon, NM area.

Stay tuned to this news feed for updates as we move out with upgrading our repeater system.