Antenna for cordless phone
in [Design]
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From: mpm on 19 May 2010 09:01 On May 18, 10:35 pm, "k...(a)att.bizzzzzzzzzzzz" <k...(a)att.bizzzzzzzzzzzz> wrote: > On Tue, 18 May 2010 18:50:43 -0700, "Joel Koltner" > > <zapwireDASHgro...(a)yahoo.com> wrote: > ><k...(a)att.bizzzzzzzzzzzz> wrote in message > >news:o3g6v55tm7o42c00bacs1puhb4qrb4dn35(a)4ax.com... > >> RP-TNC. In theory they're hard to find, but reality is a little different. > > >Until the Internet, Google, and eBay became ubiquitous something around a > >decade ago now, I think the FCC's approach there ("use hard-to-find > >connectors") worked -- but it certainly won't ever again. :-) > > Prezactly. These widgets are needed by the guys designing this stuff. They > exist and even the FCC can't re-can them. 1. Just an observation -- The FCC is not interested in canning (or re-canning) anything! It's not what they do. 2. And here's the real zinger -- Once a connector gets into the wild (i.e, becomes commonplace to the general public), the FCC will add that connector to its list of disallowed Part-15 connectors. Note however, that the FCC does not keep a list of approved Part-15 connectors - only ones they say can't be used anymore for Part-15. Furthermore, the restriction applies only at the time the device is originally certified. So, for example, a product that was certified 10 years ago can continue to use whatever connectors it might have on it, EVEN IF later on, that same connector is added to the disallowed list of connectors!! How stupid is that? I can understand the FCC does not want to cause manufacturers to do a lot of re-work to their products. The only saving grace, maybe, is that if the device is modified in any way that requires a new Part-15 certification, then at that point, the device will have to comply with the current list of disallowed connectors. So, where is this list of connectors you might ask? Good question. You won't find it anywhere in the Title 47CFR Part-15!! Instead, the FCC will randomly and quite infrequently update the list via a Public Notice. You pretty much have to be a search engine genius to find them.... but they are out there. I think the last one came out 2 years ago. (?)
From: Michael A. Terrell on 19 May 2010 13:26 mpm wrote: > > On May 18, 9:50 pm, "Michael A. Terrell" <mike.terr...(a)earthlink.net> > wrote: > > mpm wrote: > > > > > On May 18, 8:15 pm, mpm <mpmill...(a)aol.com> wrote: > > > > On May 18, 6:09 pm, D Yuniskis <not.going.to...(a)seen.com> wrote: > > > > > > > Hi Joerg, > > > > > > > Joerg wrote: > > > > > >> I'll drag out a GPS and get some actual measurements, > > > > > >> if necessary. I've not done an exhaustive survey > > > > > >> of where things work/don't work. Though I have found > > > > > >> the upper left corner to be a problem area as I am > > > > > >> often passing through there when I lose signal. > > > > > > > >> The antenna that I was *questioning* will (physically) > > > > > >> mate to a Linksys wireless router (though not intended > > > > > >> to do so, "just coincidence" -- sorry, I don't deal with > > > > > >> RF stuff so i can't tell you what sort of connectors > > > > > >> they are -- I don't think they will mate with the > > > > > >> base unit on the phone :<) > > > > > > > > Cordless phone on a Linksys router? > > > > > > > > <scratching head> > > > > > > > No, I was trying to describe the type of connector on the > > > > > antenna that I am "questioning" -- without KNOWING the > > > > > proper names for the various RF plumbing! :> > > > > > > > I figured most folks have seen a linksys router (with > > > > > removable antennae) so could relate to that example. > > > > > > > The phone's base unit is something like a "reverse TNC" > > > > > (??) so I can't mate the antenna to the base unit > > > > > "as is".- Hide quoted text - > > > > > > > - Show quoted text - > > > > > > You can probably get a reverse TNC from Pasternack. (?)- Hide quoted text - > > > > > > - Show quoted text - > > > > > Here's the link: > > > > Murray Pasternack is a well known spammer around here. > > > > -- > > Anyone wanting to run for any political office in the US should have to > > have a DD214, and a honorable discharge.- Hide quoted text - > > > > - Show quoted text - > > Of www.pasternack.com fame? > I'm surprised.!! Look at the Google archive for the group. He's caused a lot of flames over the years. -- Anyone wanting to run for any political office in the US should have to have a DD214, and a honorable discharge.
From: Joerg on 19 May 2010 14:27 mpm wrote: > On May 18, 10:35 pm, "k...(a)att.bizzzzzzzzzzzz" > <k...(a)att.bizzzzzzzzzzzz> wrote: >> On Tue, 18 May 2010 18:50:43 -0700, "Joel Koltner" >> >> <zapwireDASHgro...(a)yahoo.com> wrote: >>> <k...(a)att.bizzzzzzzzzzzz> wrote in message >>> news:o3g6v55tm7o42c00bacs1puhb4qrb4dn35(a)4ax.com... >>>> RP-TNC. In theory they're hard to find, but reality is a little different. >>> Until the Internet, Google, and eBay became ubiquitous something around a >>> decade ago now, I think the FCC's approach there ("use hard-to-find >>> connectors") worked -- but it certainly won't ever again. :-) >> Prezactly. These widgets are needed by the guys designing this stuff. They >> exist and even the FCC can't re-can them. > > 1. Just an observation -- > The FCC is not interested in canning (or re-canning) anything! > It's not what they do. > > 2. And here's the real zinger -- > Once a connector gets into the wild (i.e, becomes commonplace to the > general public), the FCC will add that connector to its list of > disallowed Part-15 connectors. > Note however, that the FCC does not keep a list of approved Part-15 > connectors - only ones they say can't be used anymore for Part-15. > Furthermore, the restriction applies only at the time the device is > originally certified. > So, for example, a product that was certified 10 years ago can > continue to use whatever connectors it might have on it, EVEN IF later > on, that same connector is added to the disallowed list of > connectors!! > How stupid is that? > > I can understand the FCC does not want to cause manufacturers to do a > lot of re-work to their products. > The only saving grace, maybe, is that if the device is modified in any > way that requires a new Part-15 certification, then at that point, the > device will have to comply with the current list of disallowed > connectors. > > So, where is this list of connectors you might ask? > Good question. You won't find it anywhere in the Title 47CFR > Part-15!! > Instead, the FCC will randomly and quite infrequently update the list > via a Public Notice. > You pretty much have to be a search engine genius to find them.... but > they are out there. > I think the last one came out 2 years ago. (?) It's easier than you think, one doesn't have to be a search engine genius. Ok, I am pretty good at finding stuff but this took less than one minute: http://www.amazon.com/Booster-Antenna-Linksys-WMP54GS-WRT54GC/dp/B000SEN9U6 http://www.amazon.com/eForcity-Booster-Antenna-Linksys-2400-2483/dp/B000FEDRN8 http://www.hdcom.com/links.html -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: krw on 19 May 2010 18:06 On Wed, 19 May 2010 06:01:12 -0700 (PDT), mpm <mpmillard(a)aol.com> wrote: >On May 18, 10:35�pm, "k...(a)att.bizzzzzzzzzzzz" ><k...(a)att.bizzzzzzzzzzzz> wrote: >> On Tue, 18 May 2010 18:50:43 -0700, "Joel Koltner" >> >> <zapwireDASHgro...(a)yahoo.com> wrote: >> ><k...(a)att.bizzzzzzzzzzzz> wrote in message >> >news:o3g6v55tm7o42c00bacs1puhb4qrb4dn35(a)4ax.com... >> >> RP-TNC. �In theory they're hard to find, but reality is a little different. >> >> >Until the Internet, Google, and eBay became ubiquitous something around a >> >decade ago now, I think the FCC's approach there ("use hard-to-find >> >connectors") worked -- but it certainly won't ever again. :-) >> >> Prezactly. �These widgets are needed by the guys designing this stuff. �They >> exist and even the FCC can't re-can them. > >1. Just an observation -- >The FCC is not interested in canning (or re-canning) anything! > It's not what they do. Don't be an idiot. Of course, they're in the business of regulating cans. >2. And here's the real zinger -- >Once a connector gets into the wild (i.e, becomes commonplace to the >general public), the FCC will add that connector to its list of >disallowed Part-15 connectors. >Note however, that the FCC does not keep a list of approved Part-15 >connectors - only ones they say can't be used anymore for Part-15. >Furthermore, the restriction applies only at the time the device is >originally certified. >So, for example, a product that was certified 10 years ago can >continue to use whatever connectors it might have on it, EVEN IF later >on, that same connector is added to the disallowed list of >connectors!! >How stupid is that? No. The point being that the transmitter is only legal with the specified antenna. It's *supposed* to be difficult to change the antenna. >I can understand the FCC does not want to cause manufacturers to do a >lot of re-work to their products. >The only saving grace, maybe, is that if the device is modified in any >way that requires a new Part-15 certification, then at that point, the >device will have to comply with the current list of disallowed >connectors. > >So, where is this list of connectors you might ask? >Good question. You won't find it anywhere in the Title 47CFR >Part-15!! >Instead, the FCC will randomly and quite infrequently update the list >via a Public Notice. >You pretty much have to be a search engine genius to find them.... but >they are out there. >I think the last one came out 2 years ago. (?) Bottom line: A distinction without a difference.
From: krw on 19 May 2010 18:07
On Wed, 19 May 2010 11:27:03 -0700, Joerg <invalid(a)invalid.invalid> wrote: >mpm wrote: >> On May 18, 10:35 pm, "k...(a)att.bizzzzzzzzzzzz" >> <k...(a)att.bizzzzzzzzzzzz> wrote: >>> On Tue, 18 May 2010 18:50:43 -0700, "Joel Koltner" >>> >>> <zapwireDASHgro...(a)yahoo.com> wrote: >>>> <k...(a)att.bizzzzzzzzzzzz> wrote in message >>>> news:o3g6v55tm7o42c00bacs1puhb4qrb4dn35(a)4ax.com... >>>>> RP-TNC. In theory they're hard to find, but reality is a little different. >>>> Until the Internet, Google, and eBay became ubiquitous something around a >>>> decade ago now, I think the FCC's approach there ("use hard-to-find >>>> connectors") worked -- but it certainly won't ever again. :-) >>> Prezactly. These widgets are needed by the guys designing this stuff. They >>> exist and even the FCC can't re-can them. >> >> 1. Just an observation -- >> The FCC is not interested in canning (or re-canning) anything! >> It's not what they do. >> >> 2. And here's the real zinger -- >> Once a connector gets into the wild (i.e, becomes commonplace to the >> general public), the FCC will add that connector to its list of >> disallowed Part-15 connectors. >> Note however, that the FCC does not keep a list of approved Part-15 >> connectors - only ones they say can't be used anymore for Part-15. >> Furthermore, the restriction applies only at the time the device is >> originally certified. >> So, for example, a product that was certified 10 years ago can >> continue to use whatever connectors it might have on it, EVEN IF later >> on, that same connector is added to the disallowed list of >> connectors!! >> How stupid is that? >> >> I can understand the FCC does not want to cause manufacturers to do a >> lot of re-work to their products. >> The only saving grace, maybe, is that if the device is modified in any >> way that requires a new Part-15 certification, then at that point, the >> device will have to comply with the current list of disallowed >> connectors. >> >> So, where is this list of connectors you might ask? >> Good question. You won't find it anywhere in the Title 47CFR >> Part-15!! >> Instead, the FCC will randomly and quite infrequently update the list >> via a Public Notice. >> You pretty much have to be a search engine genius to find them.... but >> they are out there. >> I think the last one came out 2 years ago. (?) > > >It's easier than you think, one doesn't have to be a search engine >genius. Ok, I am pretty good at finding stuff but this took less than >one minute: > >http://www.amazon.com/Booster-Antenna-Linksys-WMP54GS-WRT54GC/dp/B000SEN9U6 >http://www.amazon.com/eForcity-Booster-Antenna-Linksys-2400-2483/dp/B000FEDRN8 >http://www.hdcom.com/links.html I think he meant finding the list of banned cans. |