If you are in a congested RF environment why on earth would you waste the spectrum on a B11? It only does 256QAM
On Mon, Nov 7, 2016 at 6:42 PM Mike Hammett <[email protected]> wrote: > *nods* I asked about going from a 3' to a 6' SHP dish, no go. > > That said, I've got a couple paths in HFT central where I can still do > B11s. :-) > > > > > ----- > Mike Hammett > Intelligent Computing Solutions <http://www.ics-il.com/> > <https://www.facebook.com/ICSIL> > <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> > <https://www.linkedin.com/company/intelligent-computing-solutions> > <https://twitter.com/ICSIL> > Midwest Internet Exchange <http://www.midwest-ix.com/> > <https://www.facebook.com/mdwestix> > <https://www.linkedin.com/company/midwest-internet-exchange> > <https://twitter.com/mdwestix> > The Brothers WISP <http://www.thebrotherswisp.com/> > <https://www.facebook.com/thebrotherswisp> > > > <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> > ------------------------------ > *From: *"George Skorup" <[email protected]> > *To: *[email protected] > *Sent: *Monday, November 7, 2016 7:39:31 PM > > *Subject: *Re: [AFMUG] Class A and B antennas > > My finger clicked send before my brain. > > Interestingly, a RadioWaves HP2-11 has 60dB f/b ratio and is a Cat B. > While a HP3-11 has 62dB f/b and is Cat A. The VHLP800-11 has 59dB f/b and > is Cat A while being only 3" smaller in actual diameter vs the HP3-11 > (35.5" for a "2.5" foot antenna, vs a 38.4" 3 foot). But a bit weaker f/b > ratio than a HP2. Both are shrouded. I don't get it. I think there may be > something else like main lobe beamwidth, too. > > The problem with all this Cat A vs B stuff is it really doesn't matter > anymore in congested areas. I had Liz look for a 56MHz channel on a path. > She said nope. I said, OK, what about changing the 2' end to a 3'. She > still said nope. Polarity, antenna size, etc., nothing mattered. Out of > channels is out of channels. Good luck with those funky B11's. > > On 11/7/2016 7:09 PM, Mike Hammett wrote: > > Yes. Not a size requirement, just a suppression requirement. It's just > what size of antennas normally meet those requirements. > > > > ----- > Mike Hammett > Intelligent Computing Solutions <http://www.ics-il.com/> > <https://www.facebook.com/ICSIL> > <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> > <https://www.linkedin.com/company/intelligent-computing-solutions> > <https://twitter.com/ICSIL> > Midwest Internet Exchange <http://www.midwest-ix.com/> > <https://www.facebook.com/mdwestix> > <https://www.linkedin.com/company/midwest-internet-exchange> > <https://twitter.com/mdwestix> > The Brothers WISP <http://www.thebrotherswisp.com/> > <https://www.facebook.com/thebrotherswisp> > > > <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> > ------------------------------ > *From: *"George Skorup" <[email protected]> <[email protected]> > *To: *[email protected] > *Sent: *Monday, November 7, 2016 7:08:11 PM > *Subject: *Re: [AFMUG] Class A and B antennas > > IIRC, the classes are about front to back radio and sidelobe suppression. > > On 11/7/2016 6:45 PM, Mike Hammett wrote: > > 2.6' in 11 GHz. I forget who. > > > > ----- > Mike Hammett > Intelligent Computing Solutions <http://www.ics-il.com/> > <https://www.facebook.com/ICSIL> > <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> > <https://www.linkedin.com/company/intelligent-computing-solutions> > <https://twitter.com/ICSIL> > Midwest Internet Exchange <http://www.midwest-ix.com/> > <https://www.facebook.com/mdwestix> > <https://www.linkedin.com/company/midwest-internet-exchange> > <https://twitter.com/mdwestix> > The Brothers WISP <http://www.thebrotherswisp.com/> > <https://www.facebook.com/thebrotherswisp> > > > <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> > ------------------------------ > *From: *"SmarterBroadband" <[email protected]> > <[email protected]> > *To: *[email protected] > *Sent: *Monday, November 7, 2016 6:34:03 PM > *Subject: *[AFMUG] Class A and B antennas > > Does anyone make a 2 foot Class A antenna for 11 GHz? Or is 3 foot the > minimum. > > > > Does anyone make a 1 foot Class A antenna for 18 GHz? Or is 2 foot the > minimum. > > > > Is there a minimum distance for a 11 GHz link? > > > > Thanks > > > > Adam > > > > >
