We did a link from across the bay in Corpus Cristi with Tsunami 5Ghz radios using 4 ft. Dishes using horizontal polarity. 5 story building on one side and 120 ft. Tower at other side. These were 10mbps radios and we got almost 100% across. All the other links on same roof and other water as well used vertical polarity and had ducting issues. With MIMO and all kinds of polarity options I am sure you can find a solution. Antenna diversity must be engineered for path and conditions. Where are you trying to shoot from?
On Oct 31, 2016 6:39 PM, "Cassidy B. Larson" <[email protected]> wrote: > Did SAF try 6GHz? Or did they only try 5GHz? > Seems a 2+0 at 6 would probably work at that distance.. although seawater > is a factor I dunno about > > > On Oct 31, 2016, at 18:32, Charles Regan <[email protected]> wrote: > > Well here's SAF response: > *My link planning team confirmed SAF does not have a viable 5GHz radio > that can achieve your objective for this path.* > > Trango: > *rough calculation suggests that even using space diversity will yield a 3 > - 4 'nines' link (predicted reliability) at around 200Mbps FDX. The use of > space diversity will also add considerably to the cost (a complete link > might be upwards of $50K).* > > I'll ask SIAE... > > On Oct 31, 2016 9:19 PM, "Eric Kuhnke" <[email protected]> wrote: > >> 20k? >> >> SIAE AlfoPlus2 6 GHz 1024QAM dual polarity link. Or two pairs of >> alfoplus1 1024qam (single polarity) radios running in parallel, opposite >> polarities, equal OSPF cost between routers. >> >> Or Trango's 1024QAM 6GHz radios. >> >> Why not SAF? I thought there was a 6 GHz version of the Integra now. >> >> >> >> On Mon, Oct 31, 2016 at 5:10 PM, Charles Regan <[email protected]> >> wrote: >> >>> Hello everyone, >>> >>> What would you guys use for a 60 miles PTP link? 400Mbps. Oh and it's >>> over seawater... 20k$ budget. >>> >>> SAF, Trango both said sorry, can't do. >>> Mimosa B5C with space diversity and 3k$ maybe. >>> >>> We do have a working AF5x with a 34dbi dish doing 150Mbps aggregate. >>> The link gets bad sometimes because of ducting/reflection. >>> >>> How could I use two parabolics dish on different polarity with the AF5x >>> for space diversity? Splitter? >>> >>> Should a B5C perform better or worse ? >>> >>> Charles >>> >> >>
