Infrared reciver

Guest
I am looking for a IR reciver module with bandwidth greater the common
40khz (namely 10 to 100mhz or more) and a recemendation for a suplier

Thanks
Jeromie
 
<grapev@gmail.com> wrote in message
news:p46r81hm5u9a930pkg82ptn9cbcsj72c05@4ax.com...
I am looking for a IR reciver module with bandwidth greater the common
40khz (namely 10 to 100mhz or more) and a recemendation for a suplier

Thanks
Jeromie
Click to expand...

I would suggest looking at the receiver modules for fiber optic cables,
probably for single mode FO cables. But then you didn't say what
wavelength IR you were using. You may have to build your own using
photodiodes.
 
On Fri, 20 May 2005 04:57:07 -0700, "Watson A.Name - \"Watt Sun, the
Dark Remover\"" <NOSPAM@dslextreme.com> wrote:

grapev@gmail.com> wrote in message
news:p46r81hm5u9a930pkg82ptn9cbcsj72c05@4ax.com...
I am looking for a IR reciver module with bandwidth greater the common
40khz (namely 10 to 100mhz or more) and a recemendation for a suplier

Thanks
Jeromie


I would suggest looking at the receiver modules for fiber optic cables,
probably for single mode FO cables. But then you didn't say what
wavelength IR you were using. You may have to build your own using
photodiodes.
Click to expand...
I thought about using fiber modules. I was/am worried that they would
not work well due to packaging (and im not to hot on cutting one up
just yet). Having never used one in this way, Does the packaging need
to be modifide or is there one that is already in shape for this type
of project? Using a photo diode would be fine if I could find one that
I knew of one that would work well. Yes ive hit google but find little
in the way of user experiance for the units I found. Ive not yet
settled on a exact wavelength. If using fiber modules it will have to
be around 850nm, 1300nm and 1550nm as that is what all the units ive
seen operate in. If using a photodiode then likely around 750 to 900nm
as most of the IR leds ive seen are in this range. I should check the
fiber modules and see if the respond to this range also. I wonder if
it possible to couple FSO into a fiber? This project is for `just` 1/4
mile links. A few friends and I want to build a 10 or 100mbit ethernet
ring between our homes.

Jeromie
 
<grapev@gmail.com> wrote in message
news:cf7s8158g8hq5fi6g52i3kr8fk2smc0mjn@4ax.com...
On Fri, 20 May 2005 04:57:07 -0700, "Watson A.Name - \"Watt Sun, the
Dark Remover\"" <NOSPAM@dslextreme.com> wrote:


grapev@gmail.com> wrote in message
news:p46r81hm5u9a930pkg82ptn9cbcsj72c05@4ax.com...
I am looking for a IR reciver module with bandwidth greater the
common
40khz (namely 10 to 100mhz or more) and a recemendation for a
suplier

Thanks
Jeromie


I would suggest looking at the receiver modules for fiber optic
cables,
probably for single mode FO cables. But then you didn't say what
wavelength IR you were using. You may have to build your own using
photodiodes.


I thought about using fiber modules. I was/am worried that they would
not work well due to packaging (and im not to hot on cutting one up
just yet). Having never used one in this way, Does the packaging need
to be modifide or is there one that is already in shape for this type
of project? Using a photo diode would be fine if I could find one that
Click to expand...
What project? Oh, now I see, below.

I knew of one that would work well. Yes ive hit google but find little
in the way of user experiance for the units I found. Ive not yet
settled on a exact wavelength. If using fiber modules it will have to
be around 850nm, 1300nm and 1550nm as that is what all the units ive
seen operate in. If using a photodiode then likely around 750 to 900nm
as most of the IR leds ive seen are in this range. I should check the
fiber modules and see if the respond to this range also. I wonder if
it possible to couple FSO into a fiber? This project is for `just` 1/4
mile links. A few friends and I want to build a 10 or 100mbit ethernet
ring between our homes.
Click to expand...
Build the Ronja Metropolis. http://ronja.twibright.com/

> Jeromie
 
On Fri, 20 May 2005 19:36:50 -0700, "Watson A.Name - \"Watt Sun, the
Dark Remover\"" <NOSPAM@dslextreme.com> wrote:

grapev@gmail.com> wrote in message
news:cf7s8158g8hq5fi6g52i3kr8fk2smc0mjn@4ax.com...
On Fri, 20 May 2005 04:57:07 -0700, "Watson A.Name - \"Watt Sun, the
Dark Remover\"" <NOSPAM@dslextreme.com> wrote:


grapev@gmail.com> wrote in message
news:p46r81hm5u9a930pkg82ptn9cbcsj72c05@4ax.com...
I am looking for a IR reciver module with bandwidth greater the
common
40khz (namely 10 to 100mhz or more) and a recemendation for a
suplier

Thanks
Jeromie


I would suggest looking at the receiver modules for fiber optic
cables,
probably for single mode FO cables. But then you didn't say what
wavelength IR you were using. You may have to build your own using
photodiodes.


I thought about using fiber modules. I was/am worried that they would
not work well due to packaging (and im not to hot on cutting one up
just yet). Having never used one in this way, Does the packaging need
to be modifide or is there one that is already in shape for this type
of project? Using a photo diode would be fine if I could find one that

What project? Oh, now I see, below.

I knew of one that would work well. Yes ive hit google but find little
in the way of user experiance for the units I found. Ive not yet
settled on a exact wavelength. If using fiber modules it will have to
be around 850nm, 1300nm and 1550nm as that is what all the units ive
seen operate in. If using a photodiode then likely around 750 to 900nm
as most of the IR leds ive seen are in this range. I should check the
fiber modules and see if the respond to this range also. I wonder if
it possible to couple FSO into a fiber? This project is for `just` 1/4
mile links. A few friends and I want to build a 10 or 100mbit ethernet
ring between our homes.

Build the Ronja Metropolis. http://ronja.twibright.com/

Jeromie
Click to expand...
Ive a much simpler design and I have been told that the Ronja has
issues with part stability. I do use that site for some info, along
with a number of others (they all do voice/serial over a pen laser and
one does 144khz fm (I think that was it, ill need to find it agian)).
I could always find a ethernet to fiber driver and repalce the laser
section.

Jeromie
 
<trimed>
I hadn't heard of that deficiency. But the Ronja and all light beam
systems have the same vulnerability to fog and precipitation. If I were
going to set up a link, I would use a pair of WAPs and a pair of decent
antennas.

A friend of mine has a 600 foot link that he put together with a pair of
WAPs and the tin can antennas that can be found on the 'net. It's not
very reliable, partly because of electrical reasons but also because the
wind causes the antennas to not point at each other. I pointed him to
the www.hyperlinktech.com website and told him to get rid of the
troublesome can antennas (he doesn't know anything about RF) and buy a
pair of decent antennas from them. But he hasn't done so yet. :-/

At lease he did buy some decent LMR400 coax cable.
Click to expand...
I know fog/rain cause attenuation. That should not be much of a
problem for me as we only have 2 or 3 days of fog a year here. Rain
tho we get alot of (this is Oregon after all). II am in eastern so we
get 1/4 or so of the coast. Ive already got a wi-fi network inplace.
the 11mbit rf (4.5~5mb data) isnt enough (nor is the 10 or 100 we hope
to get, I will be runnign gigE in the house shortly). Ronja did give
me hope as it looks like someone in the Czech Republic has at least 30
installed links. I will be making modifacations to Ronja so that it is
simpler to build and hopefully more bandwidth. Time to read up on the
license some more.

Jeromie
 
Dear Jeromie,

Would you pleased tell us the IR module QTY, you request ?

Then we can arranged sample for your testing.

Thanks !

--
Patrick Cheung
Sales Department
Town Target Technology Limited
Address : 1805-7, Wu Sang House, 655 Nathan Road, Mongkok,
Kowloon, Hong Kong
Tel : 2505-5838 Fax : 2505-8121
E-mail : patrick.cheung@towntarget.com.hk
Web-site : http://www.townt.com/towne/ or www.towntarget.com.hk


<grapev@gmail.com> ???????:p46r81hm5u9a930pkg82ptn9cbcsj72c05@4ax.com...
I am looking for a IR reciver module with bandwidth greater the common
40khz (namely 10 to 100mhz or more) and a recemendation for a suplier

Thanks
Jeromie
Click to expand...
 
<grapev@gmail.com> wrote in message
news:nnpt81922876v10dmoimlvk2bp2ahe8pbb@4ax.com...
On Fri, 20 May 2005 19:36:50 -0700, "Watson A.Name - \"Watt Sun, the
Dark Remover\"" <NOSPAM@dslextreme.com> wrote:


grapev@gmail.com> wrote in message
news:cf7s8158g8hq5fi6g52i3kr8fk2smc0mjn@4ax.com...
On Fri, 20 May 2005 04:57:07 -0700, "Watson A.Name - \"Watt Sun,
the
Dark Remover\"" <NOSPAM@dslextreme.com> wrote:


grapev@gmail.com> wrote in message
news:p46r81hm5u9a930pkg82ptn9cbcsj72c05@4ax.com...
I am looking for a IR reciver module with bandwidth greater the
common
40khz (namely 10 to 100mhz or more) and a recemendation for a
suplier

Thanks
Jeromie


I would suggest looking at the receiver modules for fiber optic
cables,
probably for single mode FO cables. But then you didn't say what
wavelength IR you were using. You may have to build your own
using
photodiodes.


I thought about using fiber modules. I was/am worried that they
would
not work well due to packaging (and im not to hot on cutting one up
just yet). Having never used one in this way, Does the packaging
need
to be modifide or is there one that is already in shape for this
type
of project? Using a photo diode would be fine if I could find one
that

What project? Oh, now I see, below.

I knew of one that would work well. Yes ive hit google but find
little
in the way of user experiance for the units I found. Ive not yet
settled on a exact wavelength. If using fiber modules it will have
to
be around 850nm, 1300nm and 1550nm as that is what all the units
ive
seen operate in. If using a photodiode then likely around 750 to
900nm
as most of the IR leds ive seen are in this range. I should check
the
fiber modules and see if the respond to this range also. I wonder
if
it possible to couple FSO into a fiber? This project is for `just`
1/4
mile links. A few friends and I want to build a 10 or 100mbit
ethernet
ring between our homes.

Build the Ronja Metropolis. http://ronja.twibright.com/

Jeromie


Ive a much simpler design and I have been told that the Ronja has
issues with part stability. I do use that site for some info, along
with a number of others (they all do voice/serial over a pen laser and
one does 144khz fm (I think that was it, ill need to find it agian)).
I could always find a ethernet to fiber driver and repalce the laser
section.

Jeromie
Click to expand...
I hadn't heard of that deficiency. But the Ronja and all light beam
systems have the same vulnerability to fog and precipitation. If I were
going to set up a link, I would use a pair of WAPs and a pair of decent
antennas.

A friend of mine has a 600 foot link that he put together with a pair of
WAPs and the tin can antennas that can be found on the 'net. It's not
very reliable, partly because of electrical reasons but also because the
wind causes the antennas to not point at each other. I pointed him to
the www.hyperlinktech.com website and told him to get rid of the
troublesome can antennas (he doesn't know anything about RF) and buy a
pair of decent antennas from them. But he hasn't done so yet. :-/

At lease he did buy some decent LMR400 coax cable.
 
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