| Frequency |
Assignment |
| 420.000 - 426.000* | ATV Repeater Output (421.25 Video Carrier)
(Shared with Aux links and experimential) |
| 420.100 - 420.200 | Auxiliary Links and experimental |
| 426.000 - 432.000 | ATV Simplex (427.25 Video Carrier) |
| 430.050 - 430.950 | Digital Simplex ( Six 100 Khz wide channels) |
| 431.025 | Digital Simplex (25 Khz wide channel) |
| 432.000 - 432.070 | EME |
| 432.070 - 432.100 | Weak Signal CW |
| 432.100 | CW Calling Frequency |
| 432.100 - 432.300 | Mixed mode and weak signal |
| 432.300 - 432.400 | Propagation Beacons |
| 432.400 - 433.000 | Mixed mode and weak signal |
| 433.000 - 435.000* | Auxiliary Links on 25 Khz spacing starting at 433.025 and going to 434.975 Mhz |
| 435.000 - 438.000 | Satelite only (International) |
| 438.000 - 444.000* | ATV repeater input (439.250 Video Carrier) (Shared by digital and repeater outputs) |
| 440.975 | Digital Simplex (25 Khz wide channel) |
| 441.000 - 441.075 | Digital Simplex (Four 25 Khz wide channels) |
| 441.100 - 441.200 | Digital full duplex frequencies (Paired with 446.100-446.200 Mhz) |
| 442.000 - 445.000* | FM repeater Outputs on 25 Khz spacing starting at 444.975 and going to 442.000 Mhz |
| 445.000 - 447.000* | Auxiliary Links on 12.5 Khz spacing starting at 445.025 and going to 446.975 Mhz |
| 446.000 | National FM Simplex frequency |
| 446.025 - 446.200** | Digital full-duplex frequencies on 25 Khz spacing (nine frequencies) |
| 447.000 - 450.000* | FM repeater Inputs on 25 Khz spacing starting at 449.975 and going to 447.000 Mhz |
| |
* Frequencies coordinated by Minnesota Repeater Council (MRC)
**These digital frequencies are coordinated by the MRC Repeater Frequency Coordinator as they are shared with existing voice auxiliary links. Contact your local packet liaison person or the MRC repeater frequency coordinator for details. |
Notes:
- The above band plan comes from the band plan published in the ARRL Repeater Directory (Page 45 & 46 of the 1995-1996 issue) and is followed by the Minnesota Repeater Council (MRC) in the activities of their appointed Repeater Frequency Coordinator.
- Per FCC rule 97.205 (b) a repeater station or auxiliary station MAY NOT operate in the area of this band.
- Operation "North of Line A" on 420.000 to 430.000 MHz IS NOT ALLOWED in northern Minnesota.
- Digital operations on simplex frequencies on this band ARE NOT frequency coordinated by any party in the state of Minnesota. Use of normal FM voice repeater frequencies by FULL DUPLEX digital stations or digital stations operating on auxiliary link frequencies are coordinated by the MRC Repeater Frequency Coordinator. A digital signal cannot exceed 100 Khz in width with a maximum baud rate of 56K baud.
- The use of CTCSS or other means to protect all receivers is encouraged on all paired and non-paired frequencies coordinated by the MRC Repeater Frequency Coordinator. See the MRC CTCSS frequency plan for details.
- As a lot of the frequencies in this band are shared between multiple uses, it is important that FCC rule 97.101 be followed. This rule states:
(b) "Each station licensee and each control operator must cooperate in selecting transmitting channels and in making the most effective use of the amateur service frequencies. No frequency will be assigned for the exclusive use of any station".
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