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Frequencys of John Deere's GPS

This forum is for the discussions targeted at converting various models of Motorola equipment to operate in the 900MHz Amateur Band.

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ddayfarms
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Posts: 3
Joined: Tue Apr 26, 2011 2:14 pm

Frequencys of John Deere's GPS

Postby ddayfarms » Wed Jan 14, 2015 7:40 pm

I have the list of frequencys that John Deere uses in their Starfire GPS Differential Correction system that is used all over the hole country. I live right next to the corporate center where the John Deere starfire GPS systems are designed and my friend is an engineer there. John Deere has a network of differential correction transmitters that setup all over the country ( one of them is on our farm) mostly in the country that farmers use for the auto steer on farm tractors. It is also used in the city for construction equipment. There are tens of thousands of these all over the US. They operate in the 900 meg band and they channel hop on all these frequencys over the entire band. There is 16 zones of frequencys with about 7 to 8 frequencys per zone. They do have the ability to shut off individual zones but not individual frequencys. I dont think many people know about this unless you are a farmer like me. If your repeater is near one of these Starfire sites and your repeater is on one of these frequencys you may be able to ask to have one of the zones turned off if you can find out owns the site.
I hope that this helps some people that are having problems with a repetitive clicking that there site.

Zone 1 902.2464 to 903.8592
Zone 2 904.0896 to 905.4720
Zone 3 905.7024 to 907.0848
Zone 4 907.3152 to 908.6976
Zone 5 908.9280 to 910.3104
Zone 6 910.5408 to 911.9232
Zone 7 912.1536 to 913.5360
Zone 8 913.7664 to 915.1488
Zone 9 915.3792 to 916.7616
Zone 10 916.9920 to 918.6048
Zone 11 918.8352 to 920.2176
Zone 12 920.4480 to 921.8304
Zone 13 922.0608 to 923.4432
Zone 14 923.6736 to 925.0560
Zone 15 925.2864 to 926.6688
Zone 16 926.8992 to 927.8208

D85 D85 Frequency, D85 D85 Frequency, D85 D85 Frequency,
Dec. Hex. MHz Dec. Hex. MHz Dec. Hex. MHz

76 4B 902.2464 113 71 910.7712 150 96 919.2960
77 4D 902.4768 114 72 911.0016 151 97 919.5264
78 4E 902.7072 115 73 911.2320 152 98 919.7568
79 4F 902.9376 116 74 911.4624 153 99 919.9872
80 50 903.1680 117 75 911.6928 154 9A 920.2176
81 51 903.3984 118 76 911.9232 155 9B 920.4480
82 52 903.6288 119 77 912.1536 156 9C 920.6784
83 53 903.8592 120 78 912.3840 157 9D 920.9088
84 54 904.0896 121 79 912.6144 158 9E 921.1392
85 55 904.3200 122 7A 912.8448 159 9F 921.3696
86 56 904.5504 123 7B 913.0752 160 A0 921.6000
87 57 904.7808 124 7C 913.3056 161 A1 921.8304
88 58 905.0112 125 7D 913.5360 162 A2 922.0608
89 59 905.2416 126 7E 913.7664 163 A3 922.2912
90 5A 905.4720 127 7F 913.9968 164 A4 922.5216
91 5B 905.7024 128 80 914.2272 165 A5 922.7520
92 5C 905.9328 129 81 914.4576 166 A6 922.9824
93 5D 906.1632 130 82 914.6880 167 A7 923.2128
94 5E 906.3936 131 83 914.9184 168 A8 923.4432
95 5F 906.6240 132 84 915.1488 169 A9 923.6736
96 60 906.8544 133 85 915.3792 170 AA 923.9040
97 61 907.0848 134 86 915.6096 171 AB 924.1344
98 62 907.3152 135 87 915.8400 172 AC 924.3648
99 63 907.5456 136 88 916.0704 173 AD 924.5952
100 65 908.0064 138 8A 916.5312 175 AF 925.0560
102 66 908.2368 139 8B 916.7616 176 B0 925.2864
103 67 908.4672 140 8C 916.9920 177 B1 925.5168
104 68 908.6976 141 8D 917.2224 178 B2 925.7472
105 69 908.9280 142 8E 917.4528 179 B3 925.9776
106 6A 909.1584 143 8F 917.6832 180 B4 926.2080
107 6B 909.3888 144 90 917.9136 181 B5 926.4384
108 6C 909.6192 145 91 918.1440 182 B6 926.6688
109 6D 909.8496 146 92 918.3744 183 B7 926.8992
110 6E 910.0800 147 93 918.6048 184 B8 927.1296
111 6F 910.3104 148 94 918.8352 185 B9 927.3600
112 70 910.5408 149 95 919.0656 186 BA 927.5904
187 BB 927.8208

PETNRDX
Posts: 804
Joined: Sun Nov 25, 2001 4:00 pm
What radios do you own?: Too many

Re: Frequencys of John Deere's GPS

Postby PETNRDX » Thu Jan 15, 2015 10:37 am

Thank you for the info.

This has a huge value to us 900 repeater operators.
Steve K.


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