SMLRS Overview for Amateur Radio Operators

SMLRS is a permanently linked repeater network operated by the Nixa Amateur Radio Club (NARC), the Southwest Amateur Radio Group (SWARG), the Missouri Highway Patrol Amateur Radio Club (KM0HP), the Greene County EMA, the Vernon County EMA and Rayfield Communications  to serve emergency communications needs of Southwest Missouri and adjacent states.

It has 7 repeaters:100_1040

  • a 2-meter repeater centered near Joplin,
  • a 2-meter repeater centered near Nevada,
  • two 2-meter repeaters centered in Springfield,
  • a 2-meter repeater centered in Branson
  • a UHF repeater at Crane linking the 2-meter repeaters,
  • a UHF repeater near Stockton Lake linking Nevada into the system and acting as a redundant UHF hub repeater,
  • a 2-meter repeater centered in Branson

Together, these repeaters cover most of the Region D ARES territory in Southwest Missouri.

Because the repeaters are permanently linked, a transmission on any of the seven repeaters is re-broadcast on all seven repeaters.  In practical terms, transmissions within the network area will be heard from Coffeeville, KS to Mountain Grove, MO, and from Stockton, MO to Harrison, AR.

While the vital purpose of SMLRS is emergency service for weather monitors and responders, the network can also be used to support wide-area events, such as MS-150.  It is also available to all amateur radio operators for normal QSO use.

This is a BLOCK diagram of the SMLRS components, along with the frequencies/PL-tones for each component repeater.


block diagram oct 2014



This is a map of the combined coverage areas of the repeaters in the linked system:


SMLRS Coverage Map 100614_Branson and Arcola Added