GRAS D001 Y25: 23/ 28.3/ 35 channels used by TRIMBLE NETR9 GRAS D002 Y25: 23/ 28.7/ 34 channels used by TRIMBLE NETR9 GRAS D003 Y25: 24/ 28.4/ 34 channels used by TRIMBLE NETR9 GRAS D004 Y25: 24/ 28.2/ 35 channels used by TRIMBLE NETR9 GRAS D005 Y25: 23/ 28.4/ 33 channels used by TRIMBLE NETR9 GRAS D006 Y25: 24/ 28.5/ 36 channels used by TRIMBLE NETR9 GRAS D007 Y25: 22/ 28.0/ 35 channels used by TRIMBLE NETR9 GRAS D008 Y25: 22/ 28.1/ 34 channels used by TRIMBLE NETR9 GRAS D009 Y25: 22/ 28.8/ 37 channels used by TRIMBLE NETR9 GRAS D010 Y25: 22/ 28.1/ 34 channels used by TRIMBLE NETR9 GRAS D011 Y25: 22/ 28.0/ 34 channels used by TRIMBLE NETR9 GRAS D012 Y25: 23/ 28.8/ 34 channels used by TRIMBLE NETR9 GRAS D013 Y25: 24/ 28.1/ 34 channels used by TRIMBLE NETR9 GRAS D014 Y25: 23/ 27.9/ 33 channels used by TRIMBLE NETR9 GRAS D015 Y25: 23/ 28.1/ 32 channels used by TRIMBLE NETR9 GRAS D016 Y25: 22/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D017 Y25: 22/ 28.2/ 34 channels used by TRIMBLE NETR9 GRAS D018 Y25: 23/ 28.1/ 33 channels used by TRIMBLE NETR9 GRAS D019 Y25: 24/ 28.9/ 33 channels used by TRIMBLE NETR9 GRAS D020 Y25: 22/ 28.0/ 35 channels used by TRIMBLE NETR9 GRAS D021 Y25: 23/ 28.3/ 35 channels used by TRIMBLE NETR9 GRAS D022 Y25: 23/ 28.4/ 35 channels used by TRIMBLE NETR9 GRAS D023 Y25: 23/ 27.9/ 34 channels used by TRIMBLE NETR9 GRAS D024 Y25: 23/ 27.9/ 33 channels used by TRIMBLE NETR9 GRAS D025 Y25: 23/ 28.3/ 34 channels used by TRIMBLE NETR9 GRAS D026 Y25: 23/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D027 Y25: 22/ 28.4/ 36 channels used by TRIMBLE NETR9 GRAS D028 Y25: 23/ 28.2/ 32 channels used by TRIMBLE NETR9 GRAS D029 Y25: 24/ 28.9/ 37 channels used by TRIMBLE NETR9 GRAS D030 Y25: 17/ 27.4/ 35 channels used by TRIMBLE NETR9 GRAS D032 Y25: 24/ 29.0/ 35 channels used by TRIMBLE NETR9 GRAS D033 Y25: 24/ 29.3/ 34 channels used by TRIMBLE NETR9 GRAS D034 Y25: 23/ 28.4/ 34 channels used by TRIMBLE NETR9 GRAS D035 Y25: 23/ 29.3/ 35 channels used by TRIMBLE NETR9 GRAS D036 Y25: 24/ 29.6/ 36 channels used by TRIMBLE NETR9 GRAS D037 Y25: 23/ 29.1/ 37 channels used by TRIMBLE NETR9 GRAS D038 Y25: 24/ 28.8/ 34 channels used by TRIMBLE NETR9 GRAS D039 Y25: 23/ 29.5/ 34 channels used by TRIMBLE NETR9 GRAS D040 Y25: 24/ 29.2/ 35 channels used by TRIMBLE NETR9 GRAS D041 Y25: 25/ 28.6/ 33 channels used by TRIMBLE NETR9 GRAS D042 Y25: 24/ 29.5/ 35 channels used by TRIMBLE NETR9 GRAS D043 Y25: 25/ 29.5/ 35 channels used by TRIMBLE NETR9 GRAS D044 Y25: 23/ 28.9/ 36 channels used by TRIMBLE NETR9 GRAS D045 Y25: 23/ 28.9/ 34 channels used by TRIMBLE NETR9 GRAS D046 Y25: 25/ 29.4/ 37 channels used by TRIMBLE NETR9 GRAS D047 Y25: 23/ 28.9/ 36 channels used by TRIMBLE NETR9 GRAS D048 Y25: 23/ 28.8/ 34 channels used by TRIMBLE NETR9 GRAS D049 Y25: 25/ 29.5/ 37 channels used by TRIMBLE NETR9 GRAS D050 Y25: 24/ 29.3/ 36 channels used by TRIMBLE NETR9 GRAS D051 Y25: 23/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D052 Y25: 23/ 29.0/ 35 channels used by TRIMBLE NETR9 GRAS D053 Y25: 24/ 28.9/ 34 channels used by TRIMBLE NETR9 GRAS D054 Y25: 25/ 28.4/ 35 channels used by TRIMBLE NETR9 GRAS D055 Y25: 22/ 28.4/ 34 channels used by TRIMBLE NETR9 GRAS D056 Y25: 24/ 29.2/ 35 channels used by TRIMBLE NETR9 GRAS D057 Y25: 24/ 28.8/ 35 channels used by TRIMBLE NETR9 GRAS D058 Y25: 23/ 28.6/ 35 channels used by TRIMBLE NETR9 GRAS D059 Y25: 24/ 29.1/ 34 channels used by TRIMBLE NETR9 GRAS D060 Y25: 24/ 29.1/ 36 channels used by TRIMBLE NETR9 GRAS D061 Y25: 24/ 28.4/ 35 channels used by TRIMBLE NETR9 GRAS D062 Y25: 23/ 28.9/ 35 channels used by TRIMBLE NETR9 GRAS D063 Y25: 23/ 28.8/ 34 channels used by TRIMBLE NETR9 GRAS D064 Y25: 22/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D065 Y25: 23/ 28.4/ 34 channels used by TRIMBLE NETR9 GRAS D066 Y25: 24/ 29.2/ 35 channels used by TRIMBLE NETR9 GRAS D067 Y25: 22/ 28.6/ 36 channels used by TRIMBLE NETR9 GRAS D068 Y25: 23/ 28.1/ 34 channels used by TRIMBLE NETR9 GRAS D069 Y25: 22/ 28.9/ 35 channels used by TRIMBLE NETR9 GRAS D071 Y25: 22/ 28.1/ 33 channels used by TRIMBLE NETR9 GRAS D072 Y25: 23/ 28.9/ 35 channels used by TRIMBLE NETR9 GRAS D073 Y25: 24/ 29.1/ 35 channels used by TRIMBLE NETR9 GRAS D074 Y25: 23/ 28.8/ 36 channels used by TRIMBLE NETR9 GRAS D075 Y25: 22/ 28.2/ 34 channels used by TRIMBLE NETR9 GRAS D076 Y25: 24/ 29.2/ 34 channels used by TRIMBLE NETR9 GRAS D077 Y25: 23/ 28.7/ 36 channels used by TRIMBLE NETR9 GRAS D078 Y25: 23/ 28.2/ 34 channels used by TRIMBLE NETR9 GRAS D079 Y25: 21/ 29.1/ 34 channels used by TRIMBLE NETR9 GRAS D080 Y25: 24/ 28.7/ 33 channels used by TRIMBLE NETR9 GRAS D081 Y25: 24/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D082 Y25: 23/ 28.8/ 35 channels used by TRIMBLE NETR9 GRAS D083 Y25: 23/ 28.8/ 34 channels used by TRIMBLE NETR9 GRAS D084 Y25: 23/ 28.4/ 36 channels used by TRIMBLE NETR9 GRAS D085 Y25: 23/ 28.3/ 34 channels used by TRIMBLE NETR9 GRAS D086 Y25: 23/ 28.8/ 35 channels used by TRIMBLE NETR9 GRAS D087 Y25: 22/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D088 Y25: 24/ 28.3/ 33 channels used by TRIMBLE NETR9 GRAS D089 Y25: 23/ 28.9/ 36 channels used by TRIMBLE NETR9 GRAS D090 Y25: 24/ 28.9/ 35 channels used by TRIMBLE NETR9 GRAS D091 Y25: 22/ 28.1/ 33 channels used by TRIMBLE NETR9 GRAS D092 Y25: 23/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D093 Y25: 24/ 29.0/ 35 channels used by TRIMBLE NETR9 GRAS D094 Y25: 24/ 28.6/ 34 channels used by TRIMBLE NETR9 GRAS D095 Y25: 21/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D096 Y25: 23/ 29.1/ 35 channels used by TRIMBLE NETR9 GRAS D097 Y25: 23/ 28.9/ 35 channels used by TRIMBLE NETR9 GRAS D098 Y25: 23/ 28.3/ 33 channels used by TRIMBLE NETR9 GRAS D099 Y25: 23/ 28.9/ 34 channels used by TRIMBLE NETR9 GRAS D100 Y25: 24/ 28.8/ 36 channels used by TRIMBLE NETR9 GRAS D101 Y25: 24/ 28.3/ 33 channels used by TRIMBLE NETR9 GRAS D102 Y25: 23/ 28.7/ 34 channels used by TRIMBLE NETR9 GRAS D103 Y25: 22/ 29.1/ 33 channels used by TRIMBLE NETR9 GRAS D104 Y25: 22/ 28.7/ 34 channels used by TRIMBLE NETR9 GRAS D105 Y25: 23/ 28.5/ 35 channels used by TRIMBLE NETR9 GRAS D106 Y25: 24/ 29.0/ 34 channels used by TRIMBLE NETR9 GRAS D107 Y25: 23/ 28.6/ 35 channels used by TRIMBLE NETR9 GRAS D108 Y25: 23/ 28.2/ 33 channels used by TRIMBLE NETR9 GRAS D109 Y25: 23/ 29.0/ 35 channels used by TRIMBLE NETR9 GRAS D110 Y25: 24/ 28.8/ 34 channels used by TRIMBLE NETR9 GRAS D111 Y25: 22/ 28.4/ 33 channels used by TRIMBLE NETR9 GRAS D112 Y25: 23/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D113 Y25: 24/ 29.2/ 33 channels used by TRIMBLE NETR9 GRAS D114 Y25: 24/ 28.5/ 35 channels used by TRIMBLE NETR9 GRAS D115 Y25: 22/ 28.3/ 34 channels used by TRIMBLE NETR9 GRAS D116 Y25: 24/ 29.1/ 34 channels used by TRIMBLE NETR9 GRAS D117 Y25: 23/ 28.8/ 36 channels used by TRIMBLE NETR9 GRAS D118 Y25: 23/ 28.3/ 34 channels used by TRIMBLE NETR9 GRAS D119 Y25: 21/ 28.7/ 33 channels used by TRIMBLE NETR9 GRAS D120 Y25: 24/ 29.1/ 35 channels used by TRIMBLE NETR9 GRAS D121 Y25: 23/ 28.3/ 35 channels used by TRIMBLE NETR9 GRAS D122 Y25: 23/ 28.6/ 33 channels used by TRIMBLE NETR9 GRAS D123 Y25: 23/ 29.0/ 34 channels used by TRIMBLE NETR9 GRAS D124 Y25: 23/ 28.6/ 35 channels used by TRIMBLE NETR9 GRAS D125 Y25: 23/ 28.2/ 34 channels used by TRIMBLE NETR9 GRAS D126 Y25: 23/ 28.9/ 35 channels used by TRIMBLE NETR9 GRAS D127 Y25: 23/ 28.8/ 34 channels used by TRIMBLE NETR9 GRAS D128 Y25: 23/ 28.2/ 33 channels used by TRIMBLE NETR9 GRAS D129 Y25: 22/ 28.7/ 36 channels used by TRIMBLE NETR9 GRAS D130 Y25: 23/ 28.9/ 35 channels used by TRIMBLE NETR9 GRAS D131 Y25: 23/ 28.1/ 34 channels used by TRIMBLE NETR9 GRAS D132 Y25: 23/ 28.4/ 33 channels used by TRIMBLE NETR9 GRAS D133 Y25: 24/ 29.0/ 34 channels used by TRIMBLE NETR9 GRAS D134 Y25: 24/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D135 Y25: 21/ 28.6/ 34 channels used by TRIMBLE NETR9 GRAS D136 Y25: 23/ 29.1/ 35 channels used by TRIMBLE NETR9 GRAS D137 Y25: 24/ 29.3/ 35 channels used by TRIMBLE NETR9 GRAS D138 Y25: 24/ 28.5/ 36 channels used by TRIMBLE NETR9 GRAS D139 Y25: 24/ 28.6/ 33 channels used by TRIMBLE NETR9 GRAS D140 Y25: 24/ 29.2/ 35 channels used by TRIMBLE NETR9 GRAS D141 Y25: 23/ 28.5/ 33 channels used by TRIMBLE NETR9 GRAS D142 Y25: 23/ 28.7/ 33 channels used by TRIMBLE NETR9 GRAS D143 Y25: 24/ 29.1/ 34 channels used by TRIMBLE NETR9 GRAS D144 Y25: 22/ 28.7/ 34 channels used by TRIMBLE NETR9 GRAS D145 Y25: 23/ 28.4/ 34 channels used by TRIMBLE NETR9 GRAS D146 Y25: 24/ 28.8/ 34 channels used by TRIMBLE NETR9 GRAS D147 Y25: 24/ 28.9/ 35 channels used by TRIMBLE NETR9 GRAS D148 Y25: 23/ 28.2/ 33 channels used by TRIMBLE NETR9 GRAS D149 Y25: 23/ 28.6/ 34 channels used by TRIMBLE NETR9 GRAS D150 Y25: 24/ 28.9/ 34 channels used by TRIMBLE NETR9 GRAS D151 Y25: 22/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D152 Y25: 24/ 28.4/ 33 channels used by TRIMBLE NETR9 GRAS D153 Y25: 25/ 29.2/ 33 channels used by TRIMBLE NETR9 GRAS D154 Y25: 24/ 28.8/ 34 channels used by TRIMBLE NETR9 GRAS D155 Y25: 24/ 28.4/ 33 channels used by TRIMBLE NETR9 GRAS D156 Y25: 24/ 28.8/ 35 channels used by TRIMBLE NETR9 GRAS D157 Y25: 23/ 29.1/ 35 channels used by TRIMBLE NETR9 GRAS D158 Y25: 23/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D159 Y25: 22/ 28.5/ 33 channels used by TRIMBLE NETR9 GRAS D160 Y25: 25/ 29.2/ 34 channels used by TRIMBLE NETR9 GRAS D161 Y25: 24/ 28.7/ 35 channels used by TRIMBLE NETR9 GRAS D162 Y25: 22/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D163 Y25: 24/ 28.7/ 34 channels used by TRIMBLE NETR9 GRAS D164 Y25: 23/ 29.1/ 35 channels used by TRIMBLE NETR9 GRAS D165 Y25: 23/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D166 Y25: 23/ 29.1/ 34 channels used by TRIMBLE NETR9 GRAS D167 Y25: 23/ 29.1/ 34 channels used by TRIMBLE NETR9 GRAS D168 Y25: 23/ 28.5/ 37 channels used by TRIMBLE NETR9 GRAS D169 Y25: 23/ 28.9/ 35 channels used by TRIMBLE NETR9 GRAS D170 Y25: 24/ 29.5/ 34 channels used by TRIMBLE NETR9 GRAS D171 Y25: 23/ 28.8/ 35 channels used by TRIMBLE NETR9 GRAS D172 Y25: 23/ 28.7/ 34 channels used by TRIMBLE NETR9 GRAS D173 Y25: 24/ 29.2/ 34 channels used by TRIMBLE NETR9 GRAS D174 Y25: 24/ 29.1/ 35 channels used by TRIMBLE NETR9 GRAS D175 Y25: 22/ 28.6/ 34 channels used by TRIMBLE NETR9 GRAS D176 Y25: 22/ 29.1/ 34 channels used by TRIMBLE NETR9 GRAS D177 Y25: 23/ 29.5/ 36 channels used by TRIMBLE NETR9 GRAS D178 Y25: 23/ 28.6/ 36 channels used by TRIMBLE NETR9 GRAS D179 Y25: 23/ 28.9/ 34 channels used by TRIMBLE NETR9 GRAS D180 Y25: 25/ 29.3/ 34 channels used by TRIMBLE NETR9 GRAS D181 Y25: 23/ 28.8/ 34 channels used by TRIMBLE NETR9 GRAS D182 Y25: 23/ 28.6/ 33 channels used by TRIMBLE NETR9 GRAS D183 Y25: 23/ 29.2/ 34 channels used by TRIMBLE NETR9 GRAS D184 Y25: 24/ 29.3/ 36 channels used by TRIMBLE NETR9 GRAS D185 Y25: 23/ 28.9/ 35 channels used by TRIMBLE NETR9 GRAS D186 Y25: 23/ 28.7/ 34 channels used by TRIMBLE NETR9 GRAS D187 Y25: 22/ 29.1/ 35 channels used by TRIMBLE NETR9 GRAS D188 Y25: 22/ 28.5/ 35 channels used by TRIMBLE NETR9 GRAS D189 Y25: 23/ 28.6/ 33 channels used by TRIMBLE NETR9 GRAS D190 Y25: 24/ 29.0/ 34 channels used by TRIMBLE NETR9 GRAS D191 Y25: 22/ 28.7/ 34 channels used by TRIMBLE NETR9 GRAS D192 Y25: 22/ 28.8/ 35 channels used by TRIMBLE NETR9 GRAS D193 Y25: 24/ 29.5/ 35 channels used by TRIMBLE NETR9 GRAS D194 Y25: 23/ 29.0/ 36 channels used by TRIMBLE NETR9 GRAS D195 Y25: 23/ 29.0/ 35 channels used by TRIMBLE NETR9 GRAS D196 Y25: 24/ 29.1/ 34 channels used by TRIMBLE NETR9 GRAS D197 Y25: 22/ 29.4/ 36 channels used by TRIMBLE NETR9 GRAS D198 Y25: 23/ 28.6/ 34 channels used by TRIMBLE NETR9 GRAS D199 Y25: 22/ 28.9/ 34 channels used by TRIMBLE NETR9 GRAS D200 Y25: 25/ 29.6/ 35 channels used by TRIMBLE NETR9 GRAS D201 Y25: 24/ 29.2/ 35 channels used by TRIMBLE NETR9 GRAS D202 Y25: 23/ 28.9/ 34 channels used by TRIMBLE NETR9 GRAS D203 Y25: 24/ 29.3/ 34 channels used by TRIMBLE NETR9 GRAS D204 Y25: 22/ 29.4/ 35 channels used by TRIMBLE NETR9 GRAS D205 Y25: 23/ 28.6/ 34 channels used by TRIMBLE NETR9 GRAS D206 Y25: 24/ 28.6/ 33 channels used by TRIMBLE NETR9 GRAS D207 Y25: 23/ 29.5/ 35 channels used by TRIMBLE NETR9 GRAS D208 Y25: 23/ 29.2/ 36 channels used by TRIMBLE NETR9 GRAS D209 Y25: 23/ 28.9/ 35 channels used by TRIMBLE NETR9 GRAS D210 Y25: 24/ 29.5/ 35 channels used by TRIMBLE NETR9 GRAS D211 Y25: 22/ 29.2/ 35 channels used by TRIMBLE NETR9 GRAS D212 Y25: 23/ 28.6/ 35 channels used by TRIMBLE NETR9 GRAS D213 Y25: 24/ 29.2/ 34 channels used by TRIMBLE NETR9 GRAS D214 Y25: 24/ 29.5/ 34 channels used by TRIMBLE NETR9 GRAS D215 Y25: 21/ 28.6/ 34 channels used by TRIMBLE NETR9 GRAS D216 Y25: 24/ 29.1/ 34 channels used by TRIMBLE NETR9 GRAS D217 Y25: 24/ 29.2/ 35 channels used by TRIMBLE NETR9 GRAS D218 Y25: 23/ 28.6/ 35 channels used by TRIMBLE NETR9 GRAS D219 Y25: 23/ 28.4/ 33 channels used by TRIMBLE NETR9 GRAS D220 Y25: 24/ 29.1/ 34 channels used by TRIMBLE NETR9 GRAS D221 Y25: 23/ 28.8/ 34 channels used by TRIMBLE NETR9 GRAS D222 Y25: 23/ 28.2/ 33 channels used by TRIMBLE NETR9 GRAS D223 Y25: 23/ 28.8/ 33 channels used by TRIMBLE NETR9 GRAS D224 Y25: 24/ 29.3/ 34 channels used by TRIMBLE NETR9 GRAS D225 Y25: 23/ 28.6/ 34 channels used by TRIMBLE NETR9 GRAS D226 Y25: 24/ 28.7/ 34 channels used by TRIMBLE NETR9 GRAS D227 Y25: 22/ 29.0/ 35 channels used by TRIMBLE NETR9 GRAS D228 Y25: 22/ 28.7/ 34 channels used by TRIMBLE NETR9 GRAS D229 Y25: 22/ 28.1/ 34 channels used by TRIMBLE NETR9 GRAS D230 Y25: 24/ 28.7/ 34 channels used by TRIMBLE NETR9 GRAS D231 Y25: 21/ 28.7/ 35 channels used by TRIMBLE NETR9 GRAS D232 Y25: 23/ 28.2/ 34 channels used by TRIMBLE NETR9 GRAS D233 Y25: 24/ 29.1/ 34 channels used by TRIMBLE NETR9 GRAS D234 Y25: 23/ 29.1/ 34 channels used by TRIMBLE NETR9 GRAS D235 Y25: 22/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D236 Y25: 24/ 28.8/ 34 channels used by TRIMBLE NETR9 GRAS D237 Y25: 22/ 29.1/ 36 channels used by TRIMBLE NETR9 GRAS D238 Y25: 23/ 28.8/ 34 channels used by TRIMBLE NETR9 GRAS D239 Y25: 22/ 28.7/ 34 channels used by TRIMBLE NETR9 GRAS D240 Y25: 24/ 29.0/ 34 channels used by TRIMBLE NETR9 GRAS D241 Y25: 24/ 29.3/ 34 channels used by TRIMBLE NETR9 GRAS D242 Y25: 23/ 28.5/ 33 channels used by TRIMBLE NETR9 GRAS D243 Y25: 24/ 28.9/ 34 channels used by TRIMBLE NETR9 GRAS D244 Y25: 23/ 29.2/ 35 channels used by TRIMBLE NETR9 GRAS D245 Y25: 23/ 28.5/ 34 channels used by TRIMBLE NETR9 GRAS D246 Y25: 23/ 28.7/ 34 channels used by TRIMBLE NETR9 GRAS D247 Y25: 23/ 29.1/ 35 channels used by TRIMBLE NETR9 GRAS D248 Y25: 23/ 28.6/ 35 channels used by TRIMBLE NETR9 GRAS D249 Y25: 22/ 27.8/ 34 channels used by TRIMBLE NETR9 GRAS D250 Y25: 23/ 27.9/ 33 channels used by TRIMBLE NETR9 GRAS D251 Y25: 21/ 28.2/ 33 channels used by TRIMBLE NETR9 GRAS D252 Y25: 22/ 27.4/ 32 channels used by TRIMBLE NETR9 GRAS D253 Y25: 24/ 27.8/ 33 channels used by TRIMBLE NETR9 GRAS D254 Y25: 23/ 28.2/ 32 channels used by TRIMBLE NETR9 GRAS D255 Y25: 21/ 27.8/ 34 channels used by TRIMBLE NETR9 GRAS D256 Y25: 23/ 28.0/ 34 channels used by TRIMBLE NETR9 GRAS D257 Y25: 22/ 28.3/ 34 channels used by TRIMBLE NETR9 GRAS D258 Y25: 22/ 27.9/ 34 channels used by TRIMBLE NETR9 GRAS D259 Y25: 23/ 27.5/ 33 channels used by TRIMBLE NETR9 GRAS D260 Y25: 23/ 27.8/ 33 channels used by TRIMBLE NETR9 GRAS D261 Y25: 22/ 27.8/ 33 channels used by TRIMBLE NETR9