SERA FREQUENCY UTILIZATION PLAN for 144 - 148 MHz


144.000 - 144.050     EME CW
144.050 - 144.100     General CW Operation
144.100                       CW National Calling Frequency
144.100 - 144.200     EME and Weak Signal SSB
144.200 - 144.300     General SSB Operation
144.200                       SSB National Calling Frequency
144.275 - 144.300     Propagation Beacons
144.300 - 144.500     Multi-Mode Operation
144.390                       APRS Nationwide (Mode = 1200 Baud FM Packet)
144.510 - 144.890     FM and D-Star Repeater Inputs
144.910 - 145.090     FM Digital/Packet Simplex and D-Star Repeater Outputs
145.110 - 145.490     FM and D-Star Repeater Outputs
145.510 - 145.790     FM Digital/Packet Simplex (Auxiliary)

145.800 - 146.000     Satellite Sub-Band
146.010 - 146.385     FM and APCO P25 Repeater Inputs
146.400 - 146.585     FM Voice Simplex and Alternate Repeater Inputs
146.420 - 146.480     D-Star Voice Simplex and Repeater Inputs
146.520                       FM National Calling Frequency
146.610 - 147.390     FM and APCO P25 Repeater Outputs
147.405 - 147.585     FM Voice Simplex and Alternate Repeater Inputs
147.420 - 147.480     D-Star Voice Simplex and Repeater Inputs
147.600 - 147.990     FM and APCO P25 Repeater Inputs
 

________________________________________________________________________

Repeater Sub-band 144.50 - 145.50 MHz
20 Repeater Pairs,  20 KHz spacing,  600 KHz in/out

144.510 - 145.110         144.530 - 145.130            144.550 - 145.150
144.570 - 145.170         144.590 - 145.190            144.610 - 145.210
144.630 - 145.230         144.650 - 145.250            144.670 - 145.270
144.690 - 145.290         144.710 - 145.310            144.730 - 145.330
144,750 - 145.350         144.770 - 145.370            144.790 - 145.390
144.810 - 145.410         144.830 - 145.430            144.850 - 145.450
144.870 - 145.470         144.890 - 145.490

These pairs are available for the coordination and assignment of analog FM repeaters. 
Their coordination and assignment is determined using nominal FM coordination guidelines and
other considerations, and those pertinent to co-channel and adjacent channel assignment.

 19 D-Star Only Repeater Pairs,  20 KHz spacing,  600 KHz in/out

144.520 - 145.120         144.540 - 145.140            144.560 - 145.160
144.580 - 145.180         144.600 - 145.200            144.620 - 145.220
144.640 - 145.240         144.660 - 145.260            144.680 - 145.280
144.700 - 145.300         144.720 - 145.320            144.740 - 145.340
144.760 - 145.360         144,780 - 145.380            144.800 - 145.400
144.820 - 145.420         144.840 - 145.440            144.860 - 145.460
144.880 - 145.480

These interleaved pairs are exclusively available for the coordination and assignment
of
D-Star digital voice technology (DVT) repeaters, which is determined using nominal
FM coordination guidelines and other considerations relating to the narrow bandwidth
signals of
DVT and those pertinent to co-channel and adjacent channel assignment.

 ________________________________________________________________________

 

D-Star Only Repeater Pairs (wide offsets)
4 D-Star Only Repeater Pairs,  20 KHz spacing,  2500 KHz in/out
 

147.420 - 144.920         147.440 - 144.940            147.460 - 144.960
147.480 - 144.980

 

4 D-Star Only Repeater Pairs,  20 KHz spacing,  1400 KHz in/out

146.420 - 145.020         146.440 - 145.040            146.460 - 145.060
146.480 - 145.080

IMPORTANT NOTE:  Due to the prior assignment of frequencies in these ranges for alternate
FM repeater inputs, these D-Star only pairs may not initially be available in all areas.
 

________________________________________________________________________


Digital/Packet Simplex Frequencies

25 Simplex Channels

144.910    144.930     144.950     144.970     144.990     145.010    145.030
145.050    145.070     145.090     145.510     145.530     145.550    145.570
145.590    145.610     145.630     145.650     145.670     145.690    145.710
145.730    145.750     145.770     145.790

 ________________________________________________________________________


FM Voice Simplex Frequencies
 

146.400*     146.415*     146.430*     146.445*    146.460*     146.475*
146.490*     146.505*     146.520      146.535      146.550      146.565
146.580      146.595      147.405*     147.420*     147.435*     147.450*
147.465*     147.480*     147.495*     147.510      147.525      147.540

147.555      147.570      147.585
 

146.520 is the National FM Voice Simplex Calling Frequency

IMPORTANT NOTE:  = Frequencies marked with * are permitted for simplex use as long as it does
not cause interference to
nearby repeater inputs.  Please be aware that SERA coordinates some of 
these frequencies as repeater inputs in some areas.  Check the repeater directory in your area to see
if any such repeaters are present.
 

________________________________________________________________________


D-Star Voice Simplex Frequencies

146.420*     146.440*     146.460*    146.480*     147.420*     147.440*
147.460*     147.480*

 

IMPORTANT NOTE:  = Frequencies marked with * are permitted for simplex use as long as it does 
not cause interference to nearby repeater inputs.  Please be aware that SERA coordinates some of 
these frequencies as repeater inputs in some areas.  Check the repeater directory in your area to 
see if any such repeaters
are present.  The use of these frequencies for D-Star operation, whether 
for simplex or repeater inputs, may impact FM simplex and repeater operations and their selection
should be carefully considered.

________________________________________________________________________

 

Standard Repeater Band 146 - 148 MHz
68 Repeater Pairs, 15 KHz spacing, 600 KHz in/out,

(with alternate input & output frequency pairs shown)

146.010 - 146.610         146.025 - 146.625          146.040 - 146.640
146.055 - 146.655         146.070 - 146.670          146.085 - 146.685
146.100 - 146.700         146.115 - 146.715          146.130 - 146.730
146.145 - 146.745         146.160 - 146.760          146.175 - 146.775
146.190 - 146.790     

146.205 - 146.805         146.220 - 146.820          146.235 - 146.835
146.250 - 146.850         146.265 - 146.865          146.280 - 146.880
146.295 - 146.895  

146.310 - 146.910         146.325 - 146.925           146.340 - 146.940
146.355 - 146.955         146.370 - 146.970           146.385 - 146.985  

146.400 - 147.000         146.415 - 147.015*          146.430 - 147.030*
146.445 - 147.045*       146.460 - 147.060*           146.475 - 147.075* 
146.490 - 147.090*       146.505 - 147.105  

147.405 - 146.805         147.420 - 146.820*           147.435 - 146.835*
147.450 - 146.850*       147.465 - 146.865*            147.480 - 146.880*
147.495 - 146.895             

147.600 - 147.000         147.615 - 147.015           147.630 - 147.030
147.645 - 147.045         147.660 - 147.060           147.675 - 147.075
147.690 - 147.090         147.705 - 147.105  

147.720 - 147.120         147.735 - 147.135           147.750 - 147.150
147.765 - 147.165         147.780 - 147.180           147.795 - 147.195
147.810 - 147.210         147.825 - 147.225           147.840 - 147.240
147.855 - 147.255         147.870 - 147.270           147.885 - 147.285
147.900 - 147.300         147.915 - 147.315           147.930 - 147.330 
147.945 - 147.345         147.960 - 147.360           147.975 - 147.375 
147.990 - 147.390

IMPORTANT NOTE:  = Due to the allocation of frequencies in this range for D-Star repeater inputs,
it is recommended that the frequency pairs marked with
* using these alternate inputs not be 
selected for application and assignment for FM repeaters going forward.

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Changes to the SERA 144-148 MHz FUP approved by action of the SERA Board of Directors on January 05, 2008.  HAHjr

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