Date: Fri, 19 Nov 2021 12:11:16 -0700 From: Jim Thompson via freebsd-net <freebsd-net@freebsd.org> To: D'Arcy Cain <darcy@druid.net> Cc: freebsd-net@freebsd.org Subject: Re: Splitting antenna Message-ID: <70CD396F-2067-4EC1-9190-9D61E0AE1720@netgate.com> In-Reply-To: <feecb672-0f63-7fa7-f436-c8dec3ebf74a@druid.net> References: <feecb672-0f63-7fa7-f436-c8dec3ebf74a@druid.net>
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(When did FreeBSD-net become about antenna theory?) The answer (of course) is, =E2=80=9Cit depends=E2=80=9D. Mostly on =E2=80=9C= what bands=E2=80=9D though your antenna and cables will have some effect as w= ell.=20 Some WiFi cards these days employ a form of beamforming or even MIMO. Older= cards could use selection diversity to enhance reception. Some cards are,= as you say, architected to have a 2.4ghz chain on one antenna and a 5ghz ch= ain on another.=20 So we=E2=80=99d have to know more about your wifi card as well.=20 Jim > On Nov 19, 2021, at 11:26 AM, D'Arcy Cain <darcy@druid.net> wrote: >=20 > =EF=BB=BFI am using my FreeBSD box as my main ingress to my RV trailer. W= e move around and sometimes use Ethernet, sometimes PPP directly on DSL and s= ometimes we connect to a local wifi hotspot. To get the best connection I h= ave mounted an external, multi-band antenna on the trailer and connect it to= one of the antenna connections on the wifi card. >=20 > My question is, can I split the antenna connection and use both antenna co= nnectors on the wifi card (or three if I have that kind of card) or will tha= t mess up the connection. I know that each connection is for a different ba= nd. Different camp grounds use different bands and sometimes I need to swit= ch the antenna to get a better Internet connection. It would be nice if I c= ould just have both of then connected to the external antenna. >=20 > Cheers. >=20 > --=20 > D'Arcy J.M. Cain <darcy@druid.net> | Democracy is three wolves > https://www.google.com/url?q=3Dhttp://www.druid.net/darcy/&source=3Dgmail-= imap&ust=3D1637951204000000&usg=3DAOvVaw3DZfT_F4PSDdMhMGL1LuAe = | and a sheep voting on > +1 416 788 2246 (DoD#0082) (eNTP) | what's for dinner. > IM: darcy@VybeNetworks.com, VoIP: sip:darcy@druid.net
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