Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!mips!pacbell.com!ucsd!mvb.saic.com!ncr-sd!ncrlnk!ncratl!gedwards
From: gedwards@ncratl.AtlantaGA.NCR.COM (Gordon Edwards)
Newsgroups: sci.electronics
Subject: Re^2: Questions about cordless phones
Message-ID: <3133@ncratl.AtlantaGA.NCR.COM>
Date: 1 Jan 91 02:52:44 GMT
References: <52@bootsie.UUCP> <1990Dec29.224148.7742@yenta.alb.nm.us>
Organization: NCR Engineering & Manufacturing Atlanta -- Atlanta, GA
Lines: 28

dt@yenta.alb.nm.us (David B. Thomas) writes:

>2.  What frequencies are used by modern ("new frequency") phones?
>    AM or FM?  Sidebands?  Are they all exactly the same frequency,
>    or do some have different or multiple frequencies?

The frequencies used by cordless phones are:

     Channel     Base      Handset
        1        46.610    49.670
        2        46.630    49.845
        3        46.670    49.860
        4        46.710    49.770
        5        46.730    49.875
        6        46.770    49.830
        7        46.830    49.890
        8        46.870    49.930
        9        46.930    49.990
       10        46.970    49.970

Both side of a phone call can be heard on the base frequency, on the
handset frequency only the owner (or user) of the cordless phone can
be heard.

-- 
Internet: Gordon.Edwards@AtlantaGA.NCR.COM                NCR Corporation
UUCP: ...!gatech!kong!ncratl!gedwards                     2651 Satellite Blvd.
Amateur Radio: N4VPH                                      Duluth, GA  30136