you 'gain' 3db when signal combining..MIMO-A as some word. Cambium 450 and WiMAX does that
Sent from my iPhone > On May 7, 2015, at 9:53 PM, Glen Waldrop <[email protected]> wrote: > > Also, doing the math and removing 3dB tx power and 3dB rx gain and the > numbers are within a couple dB to the math. > > > ----- Original Message ----- > From: Glen Waldrop > To: [email protected] > Sent: Thursday, May 07, 2015 8:51 PM > Subject: Re: [AFMUG] Nanobridge M5 > > I thought so as well. Could be he's talking about the gain being +3dB on > the data sheets assuming for the gain due to MIMO. > > At 12 miles I get a -71. The math shows -61. > > Most of my NBM5 links are similar. I get much better signal with my old > 802.11a + PacWireless grids, usually right on the math. > > > ----- Original Message ----- > From: John Woodfield > To: [email protected] > Sent: Thursday, May 07, 2015 8:39 PM > Subject: Re: [AFMUG] Nanobridge M5 > > I thought you gained 2db because of MIMO? > > > > John Woodfield, President > Delmarva WiFi Inc. > 410-870-WiFi > > > -----Original Message----- > From: "Josh Luthman" <[email protected]> > Sent: Thursday, May 7, 2015 9:35pm > To: [email protected] > Subject: Re: [AFMUG] Nanobridge M5 > > Well you're losing 3db because of MIMO. At least 1db from what the antennas > say. What's the signal now? > Josh Luthman > Office: 937-552-2340 > Direct: 937-552-2343 > 1100 Wayne St > Suite 1337 > Troy, OH 45373 >> On May 7, 2015 9:32 PM, "Glen Waldrop" <[email protected]> wrote: >> I've got a few links out there with the NBM5, longest is around 12 miles. >> >> According to the math I should get a decent shot at 24 miles, but according >> to that same math the NBM5 should have higher signal in every single >> link I've done. >> >> My question here is what is the longest link you've done with the NBM5 25 >> and what is the actual gain on these units since they don't seem to actually >> gain 25 as they're suppose to. >> >> I'm not opposed to using a Rocket and larger dish, just trying to see what >> the actual limits to the device are and what the actual gain is for math. >> >> Currently I've got the 24 mile shot with a 29 and 26dBi grids, decent, but >> still using 2008 MT hardware. I need more speed for growth.
