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Farm Machinery
Precision Farming & GPS
RTK for Fendt VarioGuide with a third-party base, how-to guide
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<blockquote data-quote="Pheasant Surprise" data-source="post: 1887744" data-attributes="member: 1103"><p>More for background that anything, just had a look at AGCO parts book online (get yourselves a login, its handy). These are the VarioGuide snap-in RTK module options (and associated tuning ranges) that are offered for sale in Europe:</p><p></p><p>1. Germany, Switzerland, Spain, Denmark, Austria: 431 - 435 MHz (not sure of the channel spacing)</p><p>2. Italy, Netherlands, Norway, Sweden, Belgium: 439 - 443 MHz (not sure of the channel spacing)</p><p>3. France. UHF tuning range: 442 - 446 MHz (12.5 kHz channel spacing)</p><p>4. Portugal: 456 - 460 Mhz (not sure of the channel spacing)</p><p>5. Great Britain and Ireland: 455 - 459 MHz (25 kHz channel spacing)</p><p>6. Denmark: 440 - 444 MHz (not sure of the channel spacing)</p><p></p><p>Basically these limited tuning ranges are designed to coincide with the 'licence-free' part of the UHF spectrum in each country, plus a bit extra, but not too much extra <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p><p></p><p>With my cynical hat on I'd suggest that if AGCO made just the one snap-in fully tuneable 403 to 470 Mhz (like Topcon does) then there might be too much temptation for customers to use any base (not just direct them to their own fairly poxy portable one). Topcon on the other hand really want/need to make their UHF radio as tuneable and interoperable as possible so that it will make their hardware work with as wide a variety of kit as possible. Hence more sales. So there is the difference.</p><p></p><p>Side note about licence free spectrum; in the UK the 'licence-free' allocation in the UHF-II spectrum is from 458.525 to 458.925 MHz. This gives exactly 15 channels of 25 KHz spacing in that range (there are 3 channels that must be skipped because they're used for other stuff). You can only transmit with a maximum power of 0.5W ERP using these frequencies. Outside these specific frequencies and/or above 0.5W transmit power, then you need to have a Business Radio (usually will be Area Defined if you've only got one fixed mast) licence from Ofcom.</p></blockquote><p></p>
[QUOTE="Pheasant Surprise, post: 1887744, member: 1103"] More for background that anything, just had a look at AGCO parts book online (get yourselves a login, its handy). These are the VarioGuide snap-in RTK module options (and associated tuning ranges) that are offered for sale in Europe: 1. Germany, Switzerland, Spain, Denmark, Austria: 431 - 435 MHz (not sure of the channel spacing) 2. Italy, Netherlands, Norway, Sweden, Belgium: 439 - 443 MHz (not sure of the channel spacing) 3. France. UHF tuning range: 442 - 446 MHz (12.5 kHz channel spacing) 4. Portugal: 456 - 460 Mhz (not sure of the channel spacing) 5. Great Britain and Ireland: 455 - 459 MHz (25 kHz channel spacing) 6. Denmark: 440 - 444 MHz (not sure of the channel spacing) Basically these limited tuning ranges are designed to coincide with the 'licence-free' part of the UHF spectrum in each country, plus a bit extra, but not too much extra ;) With my cynical hat on I'd suggest that if AGCO made just the one snap-in fully tuneable 403 to 470 Mhz (like Topcon does) then there might be too much temptation for customers to use any base (not just direct them to their own fairly poxy portable one). Topcon on the other hand really want/need to make their UHF radio as tuneable and interoperable as possible so that it will make their hardware work with as wide a variety of kit as possible. Hence more sales. So there is the difference. Side note about licence free spectrum; in the UK the 'licence-free' allocation in the UHF-II spectrum is from 458.525 to 458.925 MHz. This gives exactly 15 channels of 25 KHz spacing in that range (there are 3 channels that must be skipped because they're used for other stuff). You can only transmit with a maximum power of 0.5W ERP using these frequencies. Outside these specific frequencies and/or above 0.5W transmit power, then you need to have a Business Radio (usually will be Area Defined if you've only got one fixed mast) licence from Ofcom. [/QUOTE]
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RTK for Fendt VarioGuide with a third-party base, how-to guide
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