[comp.dcom.telecom] Cordless Phones: Tweaks and Twiddles

tjfs@tadtec.uucp (Tim Steele) (02/20/91)

In the UK we use a cordless phone standard that specified 8 (?)
channels with the base station transmitting around 1.6 MHz and the
handset transmitting around 47 MHz.  The standard was recently
upgraded to require a 16 bit code to be exchanged between the handset
and base station as a security measure.  The audio is plain old FM, I
think.

a) How does the US standard work?

b) Does anyone know any tweaks to make cordless phones work better?  I
have discovered the position of the aerials *and the phone cord* is
critical for good performance, but lengthening the MW aerial doesn't
seem to make any difference.

Tim


[Moderartor's Note: You can peak the base unit a little to get another
quarter watt or so out of it, and you can trim the antenna to a
half-wave instead of the eighth (or quarter)-wave on most units, but I
recommend against it simply because there is very little you can do to
increase the performance on the remote unit, and why bother with a
super strong base unit heard all over the neighborhood if the remote
can't get back to it after more than a city block or so distant?  PAT]