Fellow Surveyors,


Can anyone outline the relative advantages/disadvantages of UHF and Spread Spectrum internal radios in GNSS receivers. I'd imagine issues like range, interference, battery life etc. would be most relevant.

Thanks!

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Replies

  • Thanks so much for your response. I don't think I outlined myself as best as I could though. The distinction and comparison between external radios vs internal radios is appreciated. But my question is about internal radios specifically; I come across the option for internal UHF and internal Spread Spectrum, and was wondering what the distinguishing factors there were between each when in internal configurations.

    Hope this clarifies.

    Thanks again!

    ePalmetto said:

    Tim, in my opinion it makes for a more compact unit eliminating weight, mfg cost, and connection problems. As far as RANGE, pretty much consistence by the specs, but limited compared to the 35Watt external ad on, a $4,500 solution. The internal Spread Spectrum are really good radios and Spread Spectrum have been around a long time. Unless you do lots of boundary, internals will give you the distance you need to do most projects. POWER-the reason the units can be internal is the Energy Saver components that the battery powers have all been reduced through the years. They usually give you 2 batteries with each unit, with at least 4 to 5 hours with each. A RELIABLE, COMPACT, and PRODUCTIVE solution...although, if a radio goes down you pretty much send the unit in to the repair shop, where externals are a component, quicker to replace.

    The only other thought is, if your working in areas where you can get a internet signal. Also where there is a VRS available, equiping those units with a GSM module allow you to turn both into ROVERS, no Base needed. But even if you did want to use this option after the fact, there are other ways to turn both into Rovers through a bluetooth phone or add the Enfora SDcard into the slot of your Data Collector. 

    Hope this information helps you let me know if I can help.

    Skip Farrow

    843.518.8488

  • GEO Ambassador

    Tim, in my opinion it makes for a more compact unit eliminating weight, mfg cost, and connection problems. As far as RANGE, pretty much consistence by the specs, but limited compared to the 35Watt external ad on, a $4,500 solution. The internal Spread Spectrum are really good radios and Spread Spectrum have been around a long time. Unless you do lots of boundary, internals will give you the distance you need to do most projects. POWER-the reason the units can be internal is the Energy Saver components that the battery powers have all been reduced through the years. They usually give you 2 batteries with each unit, with at least 4 to 5 hours with each. A RELIABLE, COMPACT, and PRODUCTIVE solution...although, if a radio goes down you pretty much send the unit in to the repair shop, where externals are a component, quicker to replace.

    The only other thought is, if your working in areas where you can get a internet signal. Also where there is a VRS available, equiping those units with a GSM module allow you to turn both into ROVERS, no Base needed. But even if you did want to use this option after the fact, there are other ways to turn both into Rovers through a bluetooth phone or add the Enfora SDcard into the slot of your Data Collector. 

    Hope this information helps you let me know if I can help.

    Skip Farrow

    843.518.8488

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