I need Cordless phones which are not 2.4ghz

Jamie_2-2

Sorry if this is posted in the wrong area but does anyone know where you can buy cordless house phones that do not operate at 2.4ghz, the ones I have currently interfere with the wireless router, video sender, and house alarm! I remember reading somewhere that using I think it was 900mhz phones!? will remove these problems..?

Heinz

DECT phones in the UK do not operate at 2.4GHz, but at 1.88 to 1.9GHz (see the Ofcom tables (as you'll see, earlier cordless phones didn't use frequencies anywhere near 2.4GHz either).

RF interference has many causes but, in the domestic setting, equipment proximity* is normally the reason. Hence, re-siting one or more items of equipment is normally an effective cure.

* DECT base stations sited close to a Sky satellite STB or its coax downlead(s) are known to block reception of particular channels due to the frequency to which the dish's LNB converts one or more of the 10.7 to 12.75GHz signals received from the satellites before downlinking to the STB.

JohalaReewi

It is possible to have imported wireless phones which operate on 2.4GHz perhaps the OP has got some of these? The solution in this case is to buy some UK DECT ones.

Heinz

You're right. The 1.88 to 1.9 GHz frequencies had already been used in the USA so, a couple of years ago (they're a bit behind us with cordless telephony - which is why you still see so many of those half a house brick analogue cordless phones in US films and TV series), they agreed the use of 1.91 to 1.93 GHz and 2.4GHz.

However, as DECT has only been in use in the USA for 2 or 3 years (as opposed to Europe/UK where it's been in use since 1993/4), it's unlikely many of the 2.4GHz version are in use here.

But there may be at least one!

Jamie_2-2

Hi thanks for the replies, seems I may have got the wrong end of the stick, for some reason I thought that my phones (4 cordless) were 2.4ghz. Thing is, when they are on my router drops connection regularly, or alternatively, the phones won't pick up the base station. Switch off the router and the phones improve, switch off the phones and the router improves. I don't use the phones now and have switched to a wired one... pending a solution.

Heinz

Jamie wrote:

Hi thanks for the replies, seems I may have got the wrong end of the stick, for some reason I thought that my phones (4 cordless) were 2.4ghz. Thing is, when they are on my router drops connection regularly, or alternatively, the phones won't pick up the base station. Switch off the router and the phones improve, switch off the phones and the router improves. I don't use the phones now and have switched to a wired one... pending a solution.

Strange.

In my bungalow, I have no such problems with:

A 2.4 GHz router (office)
A 1.88/1.9 GHz (UK) DECT base station (bedroom)
A 2.4 GHz video sender (behind the TV in the living room)
An 833 MHz cordless loudspeaker system (behind the TV in the living room).

Jamie_2-2

Oh no, I wasn't going to mention the video sender, does yours work ok with your router? If we switch ours on it kills the router signal straight away and we can't reconnect. On the off chance that the router stays connected with a pc the receiving television makes all sorts of interference noises like it's not tuned it properly.

edit: just noticed you wrote that yours all works ok together.

Heinz

But the two 2.4GHz devices are well separated.

gavinp

Try experimenting with the channel used by your wireless router - my parents had an issue with a Panasonic DECT phone interfering with their wireless network but changing the wireless network channel fixed it.

Thanks

Gavin

JohalaReewi

When you use your phones what really happens to your computer network?

1) The router loses its connection to the internet; or
2) the PCs lose their wireless connection to the router?

If it is 1, this is likely to be a microfilter problem since the router's connection to the internet is wired. If it is 2, this is likely to be RFI. Another possibility is both 1 and 2 due to the ADSL modem/router crashing. However, the phones also affect your video sender and house alarm. Are these wireless devices too?