[MRIC] D-Star and SERA

Tue Jul 15 13:24:19 EDT 2008

A local ham raised a question - Shouldn't the coordinating committees 
across the country wait until the ARRL restructures the band plans? 

Bob

brettham at aol.com wrote:
> Bob,
>
> Well said! Perhaps we can put this on the agenda for our Nov MRIC 
> meeting, to develop a formal MRIC position. Thanks for providing the 
> complete SERA band plan.
>
> Brett
>
>
> -----Original Message-----
> From: Bob Long <rjlong61 at myactv.net>
> To: MRIC at mailman.qth.net
> Sent: Mon, 14 Jul 2008 12:12 pm
> Subject: [MRIC] D-Star and SERA
>
>
> 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 (Auxil
> iary) 
> 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 - 145.12
> 0 144.540 - 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/Packe
> t 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. 
> ______________________________________________________________ 
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