Rf computer routers
 

Greetings

I realise this news group is not really the place for this question. But as
amateurs we have a knowledge of rf. So....

My question is this....does anyone know of any websites which discuss rf
routers, from an rf point of view?

For example is the transmitter on the circuit board inside the computer or
laptop. or is it in a separate external box.

Are they using 2.4 ghz and 5.x ghz?

Larry

In article uEnwb.22211$Fv8.15841
@twister01.bloor.is.net.cable.rogers.com, says...

snippety

My question is this....does anyone know of any websites which discuss rf
routers, from an rf point of view?

For example is the transmitter on the circuit board inside the computer or
laptop. or is it in a separate external box.

All the ones I've seen are self-contained, with fixed-mounted
antennas.

Are they using 2.4 ghz and 5.x ghz?

I know that 802.11b uses 2.4, and I seem to recall that 802.11g
uses 5, but I'm not 100% certain. Perhaps someone else?

As an aside: My take on any type of wireless networking is that it
is inherently insecure. WEP can be cracked in a matter of hours with the
right tools.

If you must use wireless, use it with a VPN tunnel to your LAN.

--
Dr. Anton Squeegee, Director, Dutch Surrealist Plumbing Institute
(Known to some as Bruce Lane, KC7GR)
kyrrin a/t bluefeathertech d-o=t c&o&m
Motorola Radio Programming & Service Available -
http://www.bluefeathertech.com/rf.html
"Quando Omni Flunkus Moritati" (Red Green)

On Mon, 24 Nov 2003, larry wrote:
I realise this news group is not really the place for this question. But as
amateurs we have a knowledge of rf. So....

alt.internet.wireless or rec.radio.amateur.digital.* may be better groups
depending on what you're looking for.

My question is this....does anyone know of any websites which discuss rf
routers, from an rf point of view?

For example is the transmitter on the circuit board inside the computer or
laptop. or is it in a separate external box.

It can be either.

Are they using 2.4 ghz and 5.x ghz?

Wireless LAN equipment uses 2.4GHz (802.11b and .11g) and 5.2GHZ (802.11a).
Some of the older (pre 802.11) equipment uses 915MHz. There are both internal
and external versions - with external versions usually connecting via USB.

Amateur packet radio typically uses HF (below 30 MHz), 6m (52MHz), 2m (145MHz),
125cm (219 or 223 MHz), 70cm (431 or 439 MHz in my region), 33cm (915MHz) or
23cm (1297MHz) - and higher frequency bands are possible. These uses are
usually with external interfaces directly to radio transmitting equipment (also
external), connecting to the computer via a serial port. There are some
internal models. Use of this type of equipment requires a license. Usually
these aren't stand-alone "routers."