Antenna for cordless phone
in [Design]
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From: D Yuniskis on 16 May 2010 13:28 Hi, Sometimes (rarely), on my "evening sabbatical", I carry a cordless phone (NOT a cell phone) with me. This has sufficient range to cover almost the entire "development" (e.g., I can get about half a mile, as the crow flies). *But*, there is one section (0.52 miles? :> ) where I lose reception. I've toyed with the idea of adding an external antenna to the base unit (which currently just sits on a countertop) to try to improve on that. I rescued a "dual band" antenna kit (AllTel) for a cell phone. But, I suspect these operate on a different frequency than my "cordless" (902-928MHz)? (sorry, I know *nothing* about cell phones -- thankfully! :> )
From: Joe G (Home) on 17 May 2010 05:26 > *But*, there is one section (0.52 miles? :> ) where I lose reception. > But, I suspect these operate on a different frequency than > my "cordless" (902-928MHz)? (sorry, I know *nothing* about > cell phones -- thankfully! :> ) In the tests we did on a farm - we found the the problem was lack of "line of sight" between the base and handset antenna. If you duck behind the metal shed or building was the problem. Joe
From: D Yuniskis on 17 May 2010 09:46 Hi Joe, Joe G (Home) wrote: >> *But*, there is one section (0.52 miles? :> ) where I lose reception. > >> But, I suspect these operate on a different frequency than >> my "cordless" (902-928MHz)? (sorry, I know *nothing* about >> cell phones -- thankfully! :> ) > > In the tests we did on a farm - we found the the problem was lack of "line > of sight" between the base and handset antenna. > > If you duck behind the metal shed or building was the problem. This is an "industrial cordless" -- intended for long range, etc (600mW Tx). I can get ~0.5 mi *obstructed* connections but getting much further than that (an extra block or two) is the problem. I am hoping that getting an antenna "outside" -- or at least "off the kitchen counter" -- will give me that little bit extra that is needed.
From: Joe G (Home) on 17 May 2010 10:28 "D Yuniskis" <not.going.to.be(a)seen.com> wrote in message news:hsrh0t$ic3$1(a)speranza.aioe.org... > Hi Joe, > > Joe G (Home) wrote: >>> *But*, there is one section (0.52 miles? :> ) where I lose reception. >> >>> But, I suspect these operate on a different frequency than >>> my "cordless" (902-928MHz)? (sorry, I know *nothing* about >>> cell phones -- thankfully! :> ) >> >> In the tests we did on a farm - we found the the problem was lack of >> "line of sight" between the base and handset antenna. >> >> If you duck behind the metal shed or building was the problem. > > This is an "industrial cordless" -- intended for long range, etc > (600mW Tx). I can get ~0.5 mi *obstructed* connections but getting > much further than that (an extra block or two) is the problem. > I am hoping that getting an antenna "outside" -- or at least > "off the kitchen counter" -- will give me that little bit extra > that is needed. You may try an experiment with a long piece of wire rapped a few turns around the base antenna and get the rest of the wire outside. Joe
From: AZ Nomad on 17 May 2010 11:01
On Tue, 18 May 2010 00:28:34 +1000, Joe G (Home) <joe.g(a)optusnet.com.au> wrote: >"D Yuniskis" <not.going.to.be(a)seen.com> wrote in message >news:hsrh0t$ic3$1(a)speranza.aioe.org... >> Hi Joe, >> >> Joe G (Home) wrote: >>>> *But*, there is one section (0.52 miles? :> ) where I lose reception. >>> >>>> But, I suspect these operate on a different frequency than >>>> my "cordless" (902-928MHz)? (sorry, I know *nothing* about >>>> cell phones -- thankfully! :> ) >>> >>> In the tests we did on a farm - we found the the problem was lack of >>> "line of sight" between the base and handset antenna. >>> >>> If you duck behind the metal shed or building was the problem. >> >> This is an "industrial cordless" -- intended for long range, etc >> (600mW Tx). I can get ~0.5 mi *obstructed* connections but getting >> much further than that (an extra block or two) is the problem. >> I am hoping that getting an antenna "outside" -- or at least >> "off the kitchen counter" -- will give me that little bit extra >> that is needed. >You may try an experiment with a long piece of wire rapped a few turns >around the base antenna and get the rest of the wire outside. That's just dandy if you're working with AM or shortwave. Won't do you a blind bit of good when you've got a wavelength of onl a few inches. |