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Farm Machinery
Precision Farming & GPS
Base station to N-trip
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<blockquote data-quote="peachmelba" data-source="post: 7143455" data-attributes="member: 12536"><p>Northern Farmer. Yes sorry. You are correct. </p><p></p><p>Was using RTK with a radio base station correction on a neighbors farm less than 1 mile away. Started getting connection issues ( Position Accuracy error) not just under trees but in patches in the middle of the field. So LH Agro came and updated to latest software. Both on the X30 and the AGI-4. Something to do with the Russian satellites being analogue and not digital...</p><p></p><p>Issue got worse. So I had a spare data SIM (on EE network) as I have a mast less than 1 mile away that I can see. We used the standard laird antenna (470 mhz) with LH Agro NTRIP login details and disabled 3G so it was on 2G only. Got at max 3 bars on screen. Best signal was about -63 dBm and at worse probably about -105 dBm. It was a little better than the radio RTK but still not great. So we then tried using the TopNet service which was a vast improvement, but still got occasional errors with Position Accuracy. So LH Agro ordered a proper Laird GPRS antenna which was installed. The signal improved to at best about -59 dBm but still had odd issue with Position accuracy.</p><p></p><p>But still only shows at max 4 bars on reception. </p><p></p><p>The only issue I also have with NTRIP is that if you loose a signal it takes an age to reconnect.</p></blockquote><p></p>
[QUOTE="peachmelba, post: 7143455, member: 12536"] Northern Farmer. Yes sorry. You are correct. Was using RTK with a radio base station correction on a neighbors farm less than 1 mile away. Started getting connection issues ( Position Accuracy error) not just under trees but in patches in the middle of the field. So LH Agro came and updated to latest software. Both on the X30 and the AGI-4. Something to do with the Russian satellites being analogue and not digital... Issue got worse. So I had a spare data SIM (on EE network) as I have a mast less than 1 mile away that I can see. We used the standard laird antenna (470 mhz) with LH Agro NTRIP login details and disabled 3G so it was on 2G only. Got at max 3 bars on screen. Best signal was about -63 dBm and at worse probably about -105 dBm. It was a little better than the radio RTK but still not great. So we then tried using the TopNet service which was a vast improvement, but still got occasional errors with Position Accuracy. So LH Agro ordered a proper Laird GPRS antenna which was installed. The signal improved to at best about -59 dBm but still had odd issue with Position accuracy. But still only shows at max 4 bars on reception. The only issue I also have with NTRIP is that if you loose a signal it takes an age to reconnect. [/QUOTE]
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Base station to N-trip
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