[Ronja] Distance between multiple Tx beams

[Cecilia Puon]

El sáb, 21-11-2009 a las 13:22 +0100, Karel Kulhavy escribió:

> ---- Cecilia Puon <cpuon at fsomexico.com> schrieb:
> > I have read this pages and I understand that I win intensity if I use
> > two Transmitters but I do not know which is the maximum distance that I
> > can separate these Tx if I do not want to distorsion the signal. 
> > 
> > Do I have to direct the two Tx's beams through the same point in the
> > len?Because I dont want to distorsion the signal.
> 
> The longer the link the more you can separate the TX's and still fit into the field
> of view of the receiver.
> 
> The photosensitive area extends over the whole diameter of the RX diode in SFH 203, as
> can be seen by naked eye. Not sure how it is with BPW 43. The RX diode is 5mm in diameter and focal length about 30cm. This gives ratio of 5:300 or 1:60. For every 600 meters of track you can theoretically separate the TX 10 meters



I am a little confused, what exactly do you mean with "For every 600
meters of track you can theoretically separate the TX 10 meters". I
understand that the distance between Tx and Rx is the link lenght and is
equal than the word "Track" for you, am I right? So, how can I have a
track(link) of 600m? and also I can separate Tx from Rx 10 meters, I
dont understand the point.

Thank you, regards.

Cecilia Puón 



> In practice, since the images of the transmitters in the receivers are not points but
> blotches, the separation should be kept less, I would guess one third of that, i.e. 1
> meter every 200 meters.
> 
> Regards,
> 
> Karel
> > 
> > Thank you for your help. 
> > 
> > Cecilia Puon.
> > 
> > 
> > El jue, 19-11-2009 a las 12:05 -0600, Russell Valentine escribió:
> > 
> > > http://ronja.twibright.com/metropolis/dist.php
> > > 
> > > Get your intensity number from (notice the dual TX table):
> > > http://ronja.twibright.com/msmt/gains.pdf
> > > 
> > > Then find the range from here:
> > > http://ronja.twibright.com/drawings/dist.pdf
> > > 
> > > 
> > > Cecilia Puon wrote:
> > > > Hello, I have a question. What is the distance between two Tx beams
> > > > which are used to transmit the same signal to one Rx?, with the proposal
> > > > to improve the range. 
> > > > 
> > > > Thank you for your answer.
> > > > 
> > > > Cecilia Puón.
> > > > 
> > > > 
> > > 
> > > 
> > > _______________________________________________
> > > Ronja mailing list
> > > Ronja at lists.pointless.net
> > > http://pointless.net/mailman/listinfo/ronja
> 
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