Sorry which vendor has a2c+? Google fu not worky On Tue, Jan 5, 2021, 1:32 PM Peter Kranz via AF <[email protected]> wrote:
> A2C power hit at higher modulations is resolved by the newly released A2C+ > hardware. So you can do a 2x80Mhz in the same polarity, single core, > without a splitter or other downsides now. > > > > > *Peter Kranz*www.UnwiredLtd.com <http://www.unwiredltd.com/> > Desk: 510-868-1614 x100 > Mobile: 510-207-0000 > [email protected] > > > > *From:* AF <[email protected]> *On Behalf Of *Tim Hardy > *Sent:* Monday, January 04, 2021 12:21 PM > *To:* AnimalFarm Microwave Users Group <[email protected]> > *Subject:* Re: [AFMUG] 2+0 Co-Polar > > > > The dual-core WTM-4200 radio only suffers a coupler loss hit. I think > you’re referencing the single-core WTM-4100 using Adaptive Dual Carrier > (A2C) which has a significant power hit at 1024 QAM and above. > > > > On Jan 4, 2021, at 3:01 PM, Mathew Howard <[email protected]> wrote: > > > > Yeah, you can do 2 x 80mhz channels with a single core on some radios, but > there are some limitations. Depending on the radio, my understanding is > that they have to either be adjacent, or very near each other (definitely > within the same sub-band). It seems to me that some radios can even do two > different sizes of channels (like 1 80mhz + 1 40mhz), but I could be > remembering that wrong. If I understand it right, the Aviat radios have a > significant tx power hit when you activate that feature, which probably > makes it unusable in a lot of cases. We're doing that on a Bridgewave 11ghz > link (using 4x 80mhz on a dual core radio), and there's it works fine, with > only a minor performance hit on those radios. SIAE does have that feature > as well, but I don't remember if there was a significant performance hit or > not... I think they may have been the ones that could use two different > sizes of channels. > > > > On Mon, Jan 4, 2021 at 1:51 PM Ken Hohhof <[email protected]> wrote: > > Probably, LinkPlanner is pretty smart. > I assume you don't want to use 2 antennas. > There are some licensed radios now that I think can do 2 x 80 MHz channels > in a single core, like from Aviat or SIAE maybe, I don't know if this gets > around the splitter cost and performance issues. I may have that feature > completely wrong, I haven't looked into it. There could also be a > performance hit by using the same xmt power amp for 160 MHz. > I also haven't checked out the full feature set of the new PTP850C, the > only thing I know it has is SFP+. > > ---- Original Message ---- > From: "Adam Moffett" <[email protected]> > Sent: 1/4/2021 1:30:45 PM > To: [email protected] > Subject: Re: [AFMUG] 2+0 Co-Polar > > Ok yeah, the Link Planner BOM shows some splitters. I wonder if Link > Planner already accounted for the additional losses when I selected "Co > Polar" on the dropdown. > > > On 1/4/2021 2:25 PM, Ken Hohhof wrote: > > I seem to remember that different channel different polarization is the > best, if your radio manufacturer charges for an XPIC license key. Next > best is XPIC. And that the problem with different channel same > polarization is you need a splitter which costs several dB of system gain. > But that's from memory, and mine is not so reliable. > > > > ---- Original Message ---- > > From: "Adam Moffett" <[email protected]> > > Sent: 1/4/2021 1:16:26 PM > > To: "AnimalFarm Microwave Users Group" <[email protected]> > > Subject: [AFMUG] 2+0 Co-Polar > > > > I'm looking at a path where the coordinator can get me two 50mhz XPIC > > channels, or two 80mhz H-Pol channels. > > > > I've never installed co-polar. Do you need a lot of extra junk to make > > that work? > > > > > > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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