I recently bought a remote device using this technology and found that
the system was knocked out by my microwave and other remote interfering
devices. I am now informed that most 2.4GHz routers also suffer from the
same problems. Before I dump the whole concept, is this other peoples
experience?

regards
Capitol

Capitol wrote:
I recently bought a remote device using this technology and found
that the system was knocked out by my microwave and other remote
interfering devices. I am now informed that most 2.4GHz routers also
suffer from the same problems. Before I dump the whole concept, is this
other peoples experience?

Although I'm sure that there are problems, because enough people report
them, my wireless router has not once been affected by our microwave
The 54g internal (mini pci) card in the laptop doesn't seem bothered by
either the Dect phone or the mobile sitting right next to it either.

Anyway, if the leakage from the MW is high enough to disrupt the router
signal, wouldn't that be a concern in itself?

Lee
--
Email address is valid, but is unlikely to be read.

"Lee" wrote in message
...
Capitol wrote:
I recently bought a remote device using this technology and found
that the system was knocked out by my microwave and other remote
interfering devices. I am now informed that most 2.4GHz routers also
suffer from the same problems.

Most microwaves operate at one of the resonate frequencies of water around
2.4 GHz and the reason this band is licence free is because it was deemed to
be of no use to anybody. But of course being free encouraged people to try
to use it.



Although I'm sure that there are problems, because enough people report
them, my wireless router has not once been affected by our microwave
The 54g internal (mini pci) card in the laptop doesn't seem bothered by
either the Dect phone or the mobile sitting right next to it either.

I think your card operates at the other frequency of 5.4GHz and so won't be
affected by most microwaves. If the OP has problems he could look for one
operating at this frequency as well.

Dect operates at 1800 MHz and mobiles even further away so shouldn't affect
things.


Anyway, if the leakage from the MW is high enough to disrupt the router
signal, wouldn't that be a concern in itself?

Possibly. Depends how close they are to each other. There is bound to be
some leakage through the glass front and fan openings.
..

Mike wrote:
"Lee" wrote in message
...

The 54g internal (mini pci) card in the laptop doesn't seem bothered by
either the Dect phone or the mobile sitting right next to it either.


I think your card operates at the other frequency of 5.4GHz and so won't be
affected by most microwaves. If the OP has problems he could look for one
operating at this frequency as well.

Nope it's a 2.4 Ghz one. It's tha "A" cards which are 5.8Ghz

Dect operates at 1800 MHz and mobiles even further away so shouldn't affect
things.
Ok, didn't know what frequency Dect was, though 3G is closer at 1.9/2.1Ghz

Lee
--
Email address is valid, but is unlikely to be read.

On Fri, 04 Feb 2005 20:15:17 +0000, Capitol
wrote:

I recently bought a remote device using this technology and found that
the system was knocked out by my microwave and other remote interfering
devices. I am now informed that most 2.4GHz routers also suffer from the
same problems.

You were told porky pies.



--
Peter Parry.
http://www.wpp.ltd.uk/

"Lee" wrote in message
...
Mike wrote:
"Lee" wrote in message
...

The 54g internal (mini pci) card in the laptop doesn't seem bothered by
either the Dect phone or the mobile sitting right next to it either.


I think your card operates at the other frequency of 5.4GHz and so won't
be
affected by most microwaves. If the OP has problems he could look for
one
operating at this frequency as well.

Nope it's a 2.4 Ghz one. It's tha "A" cards which are 5.8Ghz

Dect operates at 1800 MHz and mobiles even further away so shouldn't
affect
things.
Ok, didn't know what frequency Dect was, though 3G is closer at 1.9/2.1Ghz

Yep. So don't hold a 3G phone to your head :-)

On Fri, 4 Feb 2005 22:25:31 -0000, "Mike" wrote:


Dect operates at 1800 MHz

1880-1900MHz actually.

--
Peter Parry.
http://www.wpp.ltd.uk/

In message , Peter Parry
writes
On Fri, 04 Feb 2005 20:15:17 +0000, Capitol
wrote:

I recently bought a remote device using this technology and found that
the system was knocked out by my microwave and other remote interfering
devices. I am now informed that most 2.4GHz routers also suffer from the
same problems.

You were told porky pies.

Yep, we got 11g router, laptop and desktop with cards and never any
issues with interference.
--
Chris French, Leeds

Mike wrote:

Most microwaves operate at one of the resonate frequencies of water around
2.4 GHz and the reason this band is licence free is because it was deemed to
be of no use to anybody. But of course being free encouraged people to try
to use it.

It is possible for ovens to cause a problem, although it can be poor
electronic design as much as microwave emmission that is the root cause.
WiFi uses spread spectrum technology to mitigate the effects of static
source interferers like this...

Things like certain types of building construction (re-enforced concrete
in particular) and mains born interference are more likely to cause
problems.

Dect operates at 1800 MHz and mobiles even further away so shouldn't affect
things.

GSM is typically 900MHz in this country (O2, Vodaphone), PCN however
*is* at 1800MHz (TMobile, Orange)


Anyway, if the leakage from the MW is high enough to disrupt the router
signal, wouldn't that be a concern in itself?

It might, but remeber that the power output of a WiFi router is well
under a watt, so it is not going to take that much signal to saturate a
WiFi receiver.

Possibly. Depends how close they are to each other. There is bound to be
some leakage through the glass front and fan openings.

The glass should be screened, and the fan openings should be
significantly smaller than a wavelength. Dirty door seals however can
act as a crude wave guide and cause some leakage. Also look out for
damaged hinges, catches etc.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

John Rumm wrote:

WiFi uses spread spectrum technology to mitigate the effects of static
source interferers like this...

Bluetooth *does* use spread spectrum with channel hopping thoughout the
whole 2.4GHz band, but I thought WiFi chopped the 2.4GHz band into fixed
overlapping channels, with the "microwave oven" frequencies being most
likely to take out channels 9/10/11. I'm talking about 802.11b here as I
haven't looked into 802.11g, 802.11a wouldn't be affected as it uses 5.?GHz.

John Rumm wrote:

GSM is typically 900MHz in this country (O2, Vodaphone), PCN however
*is* at 1800MHz (TMobile, Orange)

PCN is officially considered part of GSM now, also O2 and Voda_f_one
have 1800MHz alloctions as well as 900MHz.

I have a baby cam that uses a 2.4GHz wireless link, the same type as video
senders. It picks up interference from the 802.11b wifi, microwave,
bluetooth.

Graham

"Capitol" wrote in message
...
I recently bought a remote device using this technology and found that the
system was knocked out by my microwave and other remote interfering
devices. I am now informed that most 2.4GHz routers also suffer from the
same problems. Before I dump the whole concept, is this other peoples
experience?

regards
Capitol

" "Lee" wrote in message
...
Capitol wrote:
I recently bought a remote device using this technology and found
that the system was knocked out by my microwave and other remote
interfering devices. I am now informed that most 2.4GHz routers also
suffer from the same problems.


Try one of these. Should solve your problem

http://www.maplin.co.uk/Module.aspx?...No=-68&TabID=1
&source=15&WorldID=4&T=A49CG

On Fri, 04 Feb 2005 20:15:17 +0000, Capitol
wrote:

I recently bought a remote device using this technology and found that
the system was knocked out by my microwave and other remote interfering
devices. I am now informed that most 2.4GHz routers also suffer from the
same problems. Before I dump the whole concept, is this other peoples
experience?

regards
Capitol
I can confirm that leakage from microwave ovens can be a problem on
2.4GHz. I have one of those video Digisenders which works on 2.4GHz,
I can allways tell when the lady next door is cooking her sons dinner
because of the rhythmic pattern of interference on the remote TV which
lasts about 5 to 10 mins.