[MRIC] D-Star and SERA

[Bob Long]

Here is the full band plan from SERA.  Please we need to be alert.  This 
is a change to meet the needs of one set of products (rather expensive 
as I see it) to move us into a direction that may or may not be to the 
advantage of Emergency Communications.  Let's do a lot of research and 
hard thinking before we take a definitive stand on this proposal.

Bob, KD3JK
RO WASH

*
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.