Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!bellcore!texbell!vector!telecom-gateway From: claris!netcom!onymouse@ames.arc.nasa.gov (John DeBert) Newsgroups: comp.dcom.telecom Subject: Re: Plantronics LiteSet Message-ID: Date: 3 Sep 89 18:29:22 GMT Sender: news@vector.Dallas.TX.US Organization: NetCom- The Bay Area's Public Access Unix System {408 997-9175} Lines: 43 Approved: telecom-request@vector.dallas.tx.us X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@vector.dallas.tx.us X-TELECOM-Digest: volume 9, issue 344, message 3 of 8 In article , jay@hermix.UUCP (Jay Skeer) says: > In-reply-to: claris!netcom!onymouse@ames.arc.nasa.gov's message of 31 Aug 89> 08:31:57 GMT >> [...] > However your improved antenna may be illegal. > FCC allows unlicensed use of certain low power radio frequency devices > on certain frequencies. However the FCC often places restrictions on > the antenna length and or height (usually they want your antenna to be > shorter than some reference length, and lower than a certain reference > height). As I recall, part 15 requires an antenna length for this band of one meter or less. I don't recall any prohibition to attaching an extension - subject to the length limitation, of course! Does part 68 have an exception that I have missed? > Your antenna may also allow your neighbors to listen in, or even dial out. With or without the extension, the signal may be heard by others. There is another cordless phone on the same channel nearby that can be heard but it has a similar access coding scheme, though different enough that my phone won't ring when their line does and vice-versa. As for dialing out, without another LiteSet, phone with the same coding signals or other device capable of producing such codes, my phone cannot be used by anyone else. No unauthorized use of my phones have occurred so far. I have not increased the range beyond that which would normally be expected for equipment of this type nor have I increased it much beyond the manufacturers alleged maximum range. With or without the extension my set is still subject to interference from nearby stations and it seems to make no difference to the other users on the channel whether I am using my phone at the same time or not. I have no nearby neighbours with receivers capable of receiving my signals and even if there were, my use of the set is so infrequent and the subjects of the calls so ordinary that they would quickly lose interest. I never use radio for confidential or sensitive calls, so there's nothing to get anyone excited about. JJD onymouse@netcom.UUCP