I won’t ask if they will sell your design to someone else for money.
But I will ask about testing. Do they qualify the antennas with lab and open field testing, or is that your responsibility to do yourself or send out to an independent lab? ----------------------------------------------------- I know you can test antennas yourself, and the KP guys talked about doing a lot of testing which I think they sent out. But I see a lot of spec sheets that seem like they came right off a simulation program, often without qualifying if the numbers and plots are typical or guaranteed performance. But then I also see elevation/azimuth plots that are so ugly they must be real because no marketing guy would make them up. (I think there’s one Ubiquiti omni that struck me that way.) A lot of antenna vendors, I think we take their amazing gain numbers with a grain of salt, subtracting a fudge factor for marketing exuberance. And without patterns and frequency plots, just a gain number isn’t that useful. Looking at published elevation/azimuth plots for dual pol omnis, the gains are often different for the two polarizations. And with the 5 GHz wideband antennas, there may be a sweet spot at some frequency, and in any case the gain usually drops off several dB in the lower sub-bands. I also remember the KP guys went through what they called Gen I, II and III versions, influenced a lot by their interactions with Cambium. I think the Cambium guys informed them that gain wasn’t everything in a sector antenna, you also needed a certain F/B ratio and sidelobe suppression. There’s also the issues of null fill and downtilt. Electrical downtilt is especially relevant in an omni, since you can’t really do mechanical downtilt if you want it to be an omni. Bottom line, a lot of buyers look only at two numbers: price, and gain. From: Af [mailto:[email protected]] On Behalf Of Chuck McCown Sent: Wednesday, January 4, 2017 10:44 AM To: [email protected] Subject: Re: [AFMUG] Infinite Electronics Acquires KP Performance Antennas Yes, Lanbowan will sell to anyone with money. They will custom build or alter anything for money. Easy company to work with. From: Mathew Howard Sent: Wednesday, January 04, 2017 9:08 AM To: af Subject: Re: [AFMUG] Infinite Electronics Acquires KP Performance Antennas I think all (or at least most) of the KP sectors are pretty heavily customized, as I haven't seen anyone else selling the equivalents, but I suspect that they are all manufactured by Lanbowan... whether or not the internals are any different than what Lanbowan will sell to anyone else, I don't know. The dual polarity 5ghz omnis they sell are certainly the same thing as Chuck's (there are probably at least half a dozen different companies selling those in the US... including L-Com, interestingly). On Wed, Jan 4, 2017 at 9:07 AM, Colin Stanners <[email protected] <mailto:[email protected]> > wrote: >From my bit of research I believe that KP dual-frequency "combo" sectors are >their own design / build, although I've never asked them. On Wed, Jan 4, 2017 at 8:48 AM, Chuck McCown <[email protected] <mailto:[email protected]> > wrote: Most of KP stuff came from Lanbowan. Same place I got my customized omni antennas. L-Com does similar, just import from China. So just adding Lanbowan to L-Com is not much of a change it doesn’t seem to me. I don’t think either company actually built anything themselves. From: That One Guy /sarcasm Sent: Tuesday, January 03, 2017 5:42 PM To: [email protected] <mailto:[email protected]> Subject: Re: [AFMUG] Infinite Electronics Acquires KP Performance Antennas L-Com/KP presents some interesting potential On Tue, Jan 3, 2017 at 5:11 PM, Chuck McCown <[email protected] <mailto:[email protected]> > wrote: Must be these guys: http://www.infiniteelectronics.com/ From: Timothy Steele Sent: Tuesday, January 03, 2017 4:03 PM To: [email protected] <mailto:[email protected]> Subject: [AFMUG] Infinite Electronics Acquires KP Performance Antennas http://www.antennasonline.com/main/news/infinite-electronics-acquires-kp-performance-antennas/ -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team.
