SERS – Southeastern SERS – Southeastern Repeater SystemRepeater SystemDesign Concept & OverviewDesign Concept & Overview

Area RepeatersArea Repeaters

• Many repeaters in our area already• Many are mobile only coverage • Megalink – Wide area coverage (VHF)• Cactus – Wide /wide closed system

coverage (UHF)• County & State ARES systems• 146.610, 146.980, 147.180*• All these are large coverage systems

Pros of these systemsPros of these systems

• Wide area comms when needed

• Extended coverage areas

• Flexibility to talk almost anywhere in the state

• All provide a very important and good service

Cons of these systemsCons of these systems

• Few areas with solid handheld coverage in building or in populated areas (Roswell, Artesia, Carlsbad)

• Not suited for long term ‘rag chewing.’

• Can be difficult to keep conversations local

• Local performance is sometimes traded for wide area coverage

The SolutionThe Solution - SERS- SERS

• SERS – Southeast Repeater System

• An alliance of local repeaters and groups to provide solid local area coverage in the Southeast metro region.

• Handheld in-building coverage in Roswell, Artesia and Carlsbad, mobile coverage Riverside to State line.

SERS – The OriginSERS – The Origin

• The demise of the 147.180 left a huge gap in service other systems can not fill.

• The need for a reliable local system is apparent.

147.180 – A Review147.180 – A Review

• Has been a key repeater in the area

• Located on the Caprock, ~1200 feet HAAT

• Outstanding local coverage

• Marginal in-building / metro coverage

• Intermittent problems since early 2011

• Went silent aprox. August 2011

147.180 – A Review147.180 – A Review

• Efforts to access the site for repair are ongoing.

• However, it is not clear when or even if this will be possible.

147.180 - Temporary147.180 - Temporary

• 147.180 temp up in Roswell until recently

• Provided great local service

• Temporary 147.180 to be the foundation of SERS at a new site.

SERS – Phase 1 – Wide CoverageSERS – Phase 1 – Wide Coverage

• 147.180 to be installed at a new site on the Caprock in Feb or March of 2012.

• Wide area service will begin – 147.180 / 147.780 – 100HZ TX/RX

• Expected mobile coverage Riverside to East State Line and beyond

SERS – Phase 2 – ROW LocalSERS – Phase 2 – ROW Local

• 146.640 will join the system

• Will remain the NMMI club repeater and retain its call sign

• 146.640 will provide local area service for low power and in-building users in Roswell.

SERS – Phase 2 Cont.SERS – Phase 2 Cont.

• 147.180 / 146.640 will be normally linked

• Additional system features will come on-line at this time:– Echolink / IRLP / VoIP Internet access– NOAA Watch / Warning broadcasts– Enhanced NET mode features and control– Notices and announcement broadcasts– Local weather information announcements

SERS – Phase 3SERS – Phase 3

• Artesia will be added to the system

• Repeater T.B.D. looking for an Artesia partner

• System should provide service to Artesia in-building and low power users.

• Wide Area, Roswell and Artesia will now be connected with all features.

SERS – Phase 4SERS – Phase 4

• Carlsbad will be added to the system

• Repeater T.B.D. looking for an Artesia partner

• System should provide service to Carlsbad in-building and low power users.

• Wide Area, Roswell, Artesia & Carlsbad will now be connected with all features.

What’s Next?What’s Next?

• After these areas are on-line, system growth will stop.

• We don’t need another Megalink.

What if the real 147.180 comes What if the real 147.180 comes back up?back up?

• Option 1: Trustee of the 147.180 may elect to join the SERS system and the temporary 180 will become an off-line backup repeater for 180. This will extend coverage.

• Option 2: Temporary 180 will change frequencies and remain in SERS. 147.180 will remain a stand-alone repeater.

Predicted Coverage – 147.180Predicted Coverage – 147.180

147.180 Predicted Coverage

Predicted Coverage – 146.640Predicted Coverage – 146.640

Combined Phase II CoverageCombined Phase II Coverage

How Can You Help?How Can You Help?

• We are looking for a Carlsbad & Artesia repeater to partner with for SERS.

Qustions / ConcernsQustions / Concerns