Re: [AFMUG] Mimosa B11 Tx power at varying modulations

[Eric Kuhnke <eric.kuhnke () gmail com>]

Apologies for that, it went to the wrong list. While the OSI layer 1
characteristics of new PTP microwave bridges are undoubtedly fascinating,
such discussion may be a little too fine grained for network operational
lists.


On Mon, Jul 18, 2016 at 3:52 PM, Eric Kuhnke <eric.kuhnke () gmail com> wrote:

> I found this as well, which is very helpful. Wish more radio manufacturers
> were as clear about this in the spec sheet:
>
> http://backhaul.help.mimosa.co/backhaul-faq-maximum-tx-power-details
>
> In one channel, two chains, it's +24, if using two channels and four
> chains +21 Tx power. Then it's possible to manually do the link budget and
> path loss calculations based on that (or plug Tx power dBm + dBi gain for
> preliminary PTP link calculations into something like Radio Mobile).
>
>
> On Mon, Jul 18, 2016 at 2:44 PM, Jaime Fink <jaime () mimosa co> wrote:
>
> > Eric, I think you’re more looking for SNR required for each modulation
> > coding rate, which care listed here:
> >
> > http://backhaul.help.mimosa.co/backhaul-faq-snr-mcs
> >
> > Cheers,
> >
> > Jaime Fink • Mimosa <http://www.mimosa.co> • CPO & Co-Founder
> >
> > On July 15, 2016 at 10:56:20 AM, Eric Kuhnke (eric.kuhnke () gmail com)
> > wrote:
> >
> > Trying to manually do a link budget/path loss/rain fade calculation for a
> > possible long B11 link...
> >
> > Does Mimosa have a table of Tx power vs. modulation level published
> > somewhere? The datasheet just says +27 Tx power, which I am guessing is its
> > Tx power at QPSK modulation or something.
> >
> > I am doubtful it's +27 at 256QAM with a low-overhead-percentage code rate.
> >
> > https://www.mimosa.co/uploads/docs/Mimosa-B11-Datasheet.pdf
> >
> > Is it +17, +18 or +19 Tx at 256QAM?