Embedded Files
CS750, CS800D, and Moto440 codeplugs have been updated to DMRVA2.6 (July 2025) | Now available: Pre-converted file for the AT-D168UV
The Southeastern Repeater Association's Frequency Use Plans (FUPs) help maintain order by designating specific frequencies for FM and digital simplex operation. Where simplex frequencies are included in one of our codeplugs, the frequencies are pulled directly from the SERA FUPs and are usable within SERA's coordination territory. Recommended simplex frequencies may vary in other areas. Consult the local frequency coordinator for recommendations.
Frequencies in bold/red are included in select RATS codeplugs.
For more information: SERA 144 MHz FUP | SERA 420-450 MHz FUP
DMR Simplex Channels
DMR Simplex Channels
145.5100 Calling*
145.7900 Calling*
146.4200
146.4400
146.4600
146.4800**
147.4200
147.4400
147.4600
147.4800
440.9125
440.9250
440.9375
440.9500
440.9625
440.9750
440.9875
441.0000 Calling
441.0125
441.0250
441.0375
441.0500
441.0625
441.0750
441.0875
441.1000
441.1125
441.1250
441.1375
441.1500
441.1625
441.1750
All channels use timeslot 1, talkgroup 99, color code 1. Anytone, Alinco, and Bridgecom radios may need to set the channel mode to "DMO/simplex" in the CPS. Alternate talkgroups may be used when needed, but for general calling purposes, use talkgroup 99.
* 145.5100 and 145.7900 are allocated as Wideband Digital Packet Simplex channels in SERA's regional plan, but these are regarded as valid 2m DMR calling frequencies on a national basis. This is noted in SERA's FUP. DMR users should be aware of potential (though highly unlikely) conflicts with local simplex packet operations on these channels.
** 146.4800 is being used as a SERA-coordinated repeater input for the Franklin County/Thornton Mountain DMR repeater. Amateurs in the area should avoid simplex operation on this frequency.
FM Simplex Channels
FM Simplex Channels
146.4000*
146.4150*
146.4300*
146.4450*
146.4600*
146.4750*
146.4900*
146.5050*
146.5200 Calling
146.5350
146.5500
146.5650
146.5800
146.5950
147.4050*
147.4200*
147.4350*
147.4500*
147.4650*
147.4800*
147.4950*
147.5100
147.5250
147.5400
147.5550
147.5700
147.5850
445.9125
445.9250
445.9375
445.9500
445.9625
445.9750
455.9875
446.0000 Calling
446.0125
446.0250
446.0375
446.0500
446.0625
446.0750
446.0875
446.1000
446.1125
446.1250
446.1375
446.1500
446.1625
446.1750
All channels use wideband FM and carrier squelch. In RATS codeplugs, most of these channels also transmit a PL of 100.0 Hz which can be used for tone squelch as needed.
* 146.4000, 146.4450, 146.4600, 146.4900, 147.4050, 147.4200, 147.4350, 147.4500, 147.4650, 147.4800, and 147.4950 may be used as repeater inputs in some areas. FM simplex use is secondary and traffic should yield to coordinated FM repeaters.
Page updated
Report abuse