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 Subject :can't mesh w/100% link quality.. 2014-06-22- 04:55:34 
ky2le
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Joined: 2014-04-25- 11:20:42
Posts: 4
Location

at a remote location with mobile wrt54, a power amp and tp link omni at a distance of 9.84 miles from my home ubiquity i get 90 to 100 % link quality over a 15 minute period; but can not mesh--from a closer location with only link quality of 50-60% using just the wrt54 i can mesh--my computer times out when i try to mesh from the distant point---can i increase the time allowed for attempted mesh?

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 Subject :Re:can't mesh w/100% link quality.. 2014-06-22- 05:46:15 
KG6JEI
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Joined: 2013-12-02- 19:52:05
Posts: 516
Location

A couple of items come to mind here:

1) The amplifier -- it is very possible the amplifier itself is decreasing the quality of the signal being transmitted.  WIFI requires very linear amplification. It has been seen that many amplifiers actually distort the signal (especially when the power from the router is more than 2-3dbm ) so while you may have an LQ of 100% in ine direction it could be 0% in the other direction.

2) The Omni -- while omni's may have a place they can pick up noise from all directions,  add this to the noise from the amplifier and you may be far enough out that thr node just can't hear you due to local noise.

3) Bullets are single chain devices, having multiple chains (Rocket or Nanostation) has proven to be a better receiver than just a bullet. (Signals while bouncing can change the plane they are in)

4) Distance Paramater -- Ensure this is set do the distance required on both nodes.

There is no timeout in units trying to mesh, it will happen continuously.  You may want to look at the OLSR Status page and see how the routes look and if you have an NLQ value for the node in question and what the % is and what the RTX cost on the route is .  If you have 100% one way but 0% the other than you don't have a connection that would be useable.

The PC attached plays no part in meshing only in accessing the services on the mesh. 



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 Subject :Re:can't mesh w/100% link quality.. 2014-06-23- 02:50:28 
ky2le
Member
Joined: 2014-04-25- 11:20:42
Posts: 4
Location

Dear Hacker:  Thank you for the information--the note about linking with my home unit was about how i knew it was working--i had been meshing with other unit using the wrt54, amp and tp-link omni--

it might be helpful to know what link quality means, how is it calculated

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 Subject :Re:can't mesh w/100% link quality.. 2014-06-23- 06:34:03 
KG6JEI
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Joined: 2013-12-02- 19:52:05
Posts: 516
Location

Try, http://www.broadband-hamnet.org/hsmm-mesh-forums/view-postlist/forum-788/topic-788-link-quality-number.html

All the comments I've given above apply to being able to link in one spot but not another spot.

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