On 2020-04-07, Michael <confabul...@kintzios.com> wrote: > On Tuesday, 7 April 2020 05:55:06 BST J. Roeleveld wrote: >> On Tuesday, April 7, 2020 5:54:25 AM CEST Ian Zimmerman wrote: >> > On 2020-04-06 22:14, Dale wrote: >> > > I have DSL and it isn't to fast to begin with. At >> > > times tho, I'm only getting about 20 or 30% of what I should. >> > >> > Are you often on the phone at those times? May it be poor filtering? >> > >> > At my last residence - also "in the sticks", LOL - we had to give up on >> > DSL completely, because 6 times out of 10 when we got a phone call the >> > internet dropped. Seriously. We're not proud to support the Comcast >> > monopoly, but what a difference. >> >> This is likely caused by NOT having a filter for every device. >> >> Longer version: >> >> DSL requires a splitter/filter between the wall-socket (where the phone >> normally plugs in) and the DSL modem. It also has a 2nd connection for the >> phone. > > It is not the ADSL modem which requires the filter, but the analogue > telephone.
My experience with multiple different installations is that lack of a filter can pretty much kill the ADSL signal and redner the DSL mode useless. > The filter cuts out audible frequencies so you can't hear them > when you're making a call. In my experience, it often also prevents the phones and connected lines from presenting such a screwed up impedance to the DSL signal that DSL stops working. -- Grant
