hi there,

i read an article(link below) on adding an external aerial to a PC
mouse to improve its transmitting ability using a twist tie to its
front

http://lactose.blogspot.com/2007/06/...prove-its.html

but it didnt improve its range. i figured you ppl here know your
aerials so i was wondering if you could give me some ideas to try.
this is what the mouse looks like (RF board is one on the right). thx

http://www.geocities.com/ymailus/mouse.JPG (i can upload a hi res one
if anyone needs it)

s

s wrote:
[...]

Certainly interesting ...

However, I'd suggest you would get a more acceptable performance by
purchasing a USB hub. Plug the hubs' cable into the computer, and place
the hub on the desk in proper range of the mouse and plug the mouses'
dongle into the hub ...

I know, not as fun as experimenting, but loads more performance!

Regards,
JS

On Dec 26, 6:57*pm, John Smith wrote:

I know, not as fun as experimenting, but loads more performance!

that wud definately provide a solution, but i am bent on tryng to get
this wireless mouse designed to work on the same desk as the receiver,
to transmit from a different room.

i am trying to establish where to solder an antenna.

s wrote:

...
i am trying to establish where to solder an antenna.

Got 'cha ...

I don't think anyone here would hesitate to offer assistance. However,
for beginnings, the antenna should be cut for the specific freq of the
mouse. Do you know that freq?

And then, without a schematic of the mouse, how would someone locate the
"final amp" on the mouse with any certainty? Can you identify the
trace/other which is serving as the ant now? That is where, most
likely, you would make the connection. If it were my mouse I'd be more
brazen--you hating me for making a wrong "guess" just doesn't cut it!

There is more to worry about also ... trust me.

Crux of the matter being--no one is a big hurry to help you "burn up"
your mouse!

Regards,
JS

likely, you would make the connection. *If it were my mouse I'd be more
brazen--you hating me for making a wrong "guess" just doesn't cut it!

no worries,its an old, non optical mouse that i am trying to give a
2nd life.
i think it runs at 27Mhz. there is a little can on the underside which
has 27.045 on it.

the current antenna laid on the pcb is shaped thus
http://www.geocities.com/ymailus/pcb.JPG

thx

s wrote:

...
i think it runs at 27Mhz. there is a little can on the underside which
has 27.045 on it.

the current antenna laid on the pcb is shaped thus
http://www.geocities.com/ymailus/pcb.JPG

thx

Some of the "more to it" is that at 27Mhz, you are not going to add on
anything I can think of which will improve distance--all I see is that
you will detune circuit and antenna and degrade performance. (at least,
in a usable way)

At 900Mhz and above, a complete antenna can consist of a "bread tie" and
performance can be improved.

Let's see if any others have some thoughts ...

Regards,
JS

s wrote:
hi there,

i read an article(link below) on adding an external aerial to a PC
mouse to improve its transmitting ability using a twist tie to its
front

http://lactose.blogspot.com/2007/06/...prove-its.html

but it didnt improve its range. i figured you ppl here know your
aerials so i was wondering if you could give me some ideas to try.
this is what the mouse looks like (RF board is one on the right). thx

http://www.geocities.com/ymailus/mouse.JPG (i can upload a hi res one
if anyone needs it)

s

Sorry I'm late, we were away for Xmas.

One thing already suggested is somehow making electrical contact between
your body and the antenna terminal so your body acts as a larger
effective antenna at the mouse. I wouldn't worry about any impedance
mismatch between the RF portion of the mouse and your body, power levels
are so low you won't damage anything.

Another thing is making the antenna at the PC bigger, like maybe a full
wave loop of #36 magnet wire strung up the walls and across the ceiling
and coupled in to the dongle by wrapping it with a few turns of the loop
wire. Different orientations of the loop may give you better performance.