Looking at the New Hiper V and maybe selling my Sokkia GRX1 with UHF(2.5-3 mile range). Anyone have any experience with the new V in relation to the older hiper II? It looks the same (minus)Vanguard......whatever that is.
Hiper V "pronounced as vee, not five)
I don't know why they go from Hiper two, then the Hiper Vee.
Anyway the Hiper V also has different radio board called Digital UHF II.
Lee Green
The "V" is for the Vanguard chip technology that is in the HiPer V.
226 universal channels on the HiPer V as opposed to 72 on the HiPer II. After you get to enough, I do not know how many more you need.
Unlike the receivers offered by some other manufacturers, current Topcon receivers do not have dedicated channels. Any channel can track any frequency from any supported satellite. I learned that Topcon receivers do not track reduntant signals such as L2 and L2C. In other words, if the L2C is available and both receivers (base and rover) are tracking both signals, the receivers would only use the L2C.
So if you are tracking, say, 18 satellites, that would require 36 channels. I don't really know what the other 190 are for.
The other substantive difference between the HiPer V and its predecessor, the HiPer II is that the V has Topcon's fence technology in the GPS antenna. This is a physical feature - a sort of picket fence of metal fingers that stand around the perimeter of both elements of the antenna. Their purpose is to help block out multipath signal and from their position, one might infer that this effect would primarily work on data from relatively low-flying satellites.
We do not have any significant number of folk who are trading in HiPer II units for HiPer V units. We think we see a bit better performance out of the V units. But not anything drastic.
Thanks for the reply.
I think the Hiper V also have a different cell modem that allows you to use the 4g data instead of the the older GPRS 2g/3g.