I'm interested in hearing it. I'm upgrading my network, using the NBM5 for a lot of tower to tower shots.
----- Original Message ----- From: Mathew Howard To: af Sent: Thursday, May 07, 2015 9:38 PM Subject: Re: [AFMUG] Nanobridge M5 It will also change a bit depending on what channel width you're using... 10mhz will gain you a few db over 20mhz, etc. I'll generally go to a larger antenna on anything over 5-6 miles these days... actually I won't use NanoBridges for PtP links at all anymore, but that's another story. On Thu, May 7, 2015 at 9:33 PM, Glen Waldrop <[email protected]> wrote: I'm thinking they may do the same with the tx power as well. ----- Original Message ----- From: [email protected] To: [email protected] Sent: Thursday, May 07, 2015 9:29 PM Subject: Re: [AFMUG] Nanobridge M5 You did account for the fact that Ubnt antenna gain specs usually add an extra 2-3db "in taxes" right?. -------------------------------------------------------------------------- From: "Glen Waldrop" <[email protected]> Sender: "Af" <[email protected]> Date: Fri, 8 May 2015 01:59:02 +0000 To: <[email protected]> ReplyTo: [email protected] Subject: Re: [AFMUG] Nanobridge M5 Thanks. Accounting for 3dB "gain" added for MIMO and 18dBm tx power at full modulation makes the math work out for what I'm actually seeing. Problem is I'm still only at MCS 12, which should be 22dBm tx. I think they add 3dB to every number on their datasheets accounting for MIMO, which doesn't work out quite as nicely when doing the math. ----- Original Message ----- From: Mike Hammett To: [email protected] Sent: Thursday, May 07, 2015 8:52 PM Subject: Re: [AFMUG] Nanobridge M5 Make sure you account for Tx power at full modulation vs. lowest modulation. Always calculate based on full modulation. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest Internet Exchange http://www.midwest-ix.com ------------------------------------------------------------------------ From: "Glen Waldrop" <[email protected]> To: [email protected] Sent: Thursday, May 7, 2015 8:51:49 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.
