So, nothing personal by this... but if the connector is designed for it (and has several versions by other manufacturers to boot), has been used (and is still used) on testing equipment... I'm probably more inclined to take their word for it over yours. On Jul 1, 2016 7:58 PM, "Chuck McCown" <[email protected]> wrote:
> IMHO, 6 GHz is the upper limit. > > *From:* Peter Kranz <[email protected]> > *Sent:* Friday, July 01, 2016 5:22 PM > *To:* [email protected] > *Subject:* Re: [AFMUG] Convert Andrew Dragonwave dishes to N > > > “Originally, the connector was designed to carry signals at frequencies > up to 1 GHz <https://en.wikipedia.org/wiki/GHz> in military applications, > but today's common Type N easily handles frequencies up to 11 GHz. More > recent precision enhancements to the design by Julius Botka at Hewlett > Packard <https://en.wikipedia.org/wiki/Hewlett_Packard> have pushed this > to 18 GHz.” > > > > http://inmet.apitech.com/inmet/micro-inmet-between-typen.cfm > > > > > *Peter Kranz*www.UnwiredLtd.com <http://www.unwiredltd.com/> > Desk: 510-868-1614 x100 > Mobile: 510-207-0000 > [email protected] > > > > *From:* Af [mailto:[email protected]] *On Behalf Of *Chuck McCown > *Sent:* Thursday, June 30, 2016 3:24 PM > *To:* [email protected] > *Subject:* Re: [AFMUG] Convert Andrew Dragonwave dishes to N > > > > Yeah, I think this is a case of somebody bowing their neck - a pissing > contest between a boss and underlings at UBNT. > > > > *From:* Eric Kuhnke <[email protected]> > > *Sent:* Thursday, June 30, 2016 4:19 PM > > *To:* [email protected] > > *Subject:* Re: [AFMUG] Convert Andrew Dragonwave dishes to N > > > > I have never in my life personally seen an N connector rated above 11 GHz. > High-quality/expensive N connectors are used extensively in two way > satellite - such as with 3.0 meter C-band Tx/Rx earth station dishes... > But you only use N for the 50 ohm coax cables from the modem (indoors) to > the electronics which lives directly attached to the waveguide/feed on the > dish (Rx LNB and Tx SSPA/BUC). > > The coax is used between 1.2 to 1.8 GHz to communicate with the Tx and Rx > electronics on the dish. A satellite LNB on the Rx side is basically a 10:1 > ratio downconverter. > > Like so: http://beta.satcomresources.com/sca/images/NORS3120N_detail-3.jpg > > There's your single polarity waveguide interface on one side, N on the > other. > > > > On Thu, Jun 30, 2016 at 6:49 AM, Chuck McCown <[email protected]> wrote: > > First of all, I have never seen an N connector rated above 11 GHz, and > those are extra expensive. > > If there is an 18 GHz version, it will be even more expensive. > > > > This will not be a cable you can make yourself in the field and it will be > very sensitive to being fully seated so you will probably have to use a > torque wrench to make it work at 18 GHz. > > > > Silly. You can weatherproof an SMA just as easy as an N connector. Good > heatshrink can be found for both. > > Folks trying to use N connectors at 18 GHz are going to quickly get > introduced to the world of return loss problems. > > > > > > > > *Von:* Af [mailto:[email protected]] *Im Auftrag von *Rob Genovesi > *Gesendet:* Donnerstag, 30. Juni 2016 01:32 > *An:* [email protected] > *Betreff:* Re: [AFMUG] Convert Andrew Dragonwave dishes to N > > > > From Gary-UBNT: > > "We are working on data sheets right now so hopefully you will get more > questions answered shortly. The reason for N connectors relates to demand > for higher mechanical robustness and the ability for the connectors to be > weather-proof as a stand alone connector (fully weatherproof gaskets and > the ability to accept larger diameter jumpers readily). The N connectors > we use are rated to 18+ GHz." > > An active thread on the UBNT forums right now, more available here: > http://community.ubnt.com/t5/airFiber/Some-AF11X-details/td-p/1512145 > > -Rob > > > > On Wed, Jun 29, 2016 at 12:05 PM, Bill Prince <[email protected]> wrote: > > I'm looking at all the other AF-nnX radios from UBNT, and they all use SMA > connectors. What reason would they have to use N instead of SMA? Seems the > SMA connector would have fewer issues at 11 GHz. > > > > >
