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Set TX Power?

 
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EricWarnke
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PostPosted: Tue Apr 28, 2009 7:16 pm    Post subject: Set TX Power? Reply with quote

With different non-Accton devices how do you set the transmit power? Does Robin automatically max it out or do you have to manually set it? I have a Bullet 2 and I want to have it transmit as high as it will go but I a) don't know how high it's capable of and b) don't know how to set it!

Cheers.

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bconverse
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PostPosted: Tue Apr 28, 2009 9:48 pm    Post subject: Reply with quote

iwlist txpower

will show you available and set power
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EricWarnke
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PostPosted: Wed Apr 29, 2009 4:19 am    Post subject: Reply with quote

My Bullet2 says that it only has an available transmit power of 100mW. Is that a limitation in Robin or is that the highest the Bullet2 can go?

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sankofa
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PostPosted: Wed Apr 29, 2009 4:59 am    Post subject: Reply with quote

That is the function of the bullet2, The bullet2HP are rated at 1000 mW but I do not think they are available
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EricWarnke
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PostPosted: Wed Apr 29, 2009 6:31 am    Post subject: Reply with quote

Grrr... I thought my Bullet2 had 1000mW! It's very unclear when ordering them...

When you say it's unavailable do you mean they aren't available for ordering or that transmission setting isn't available?

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ispyisail
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PostPosted: Wed Apr 29, 2009 7:29 am    Post subject: Reply with quote

I have a Bullet2HP

I have 79mW output power?

Code:
BusyBox v1.11.2 (2009-04-16 19:56:01 CEST) built-in shell (ash)
Enter 'help' for a list of built-in commands.

  _______                          ________             __
 |       |.-----.-----.-----.  _  |        |.-----.----|  |__
 |   -   ||  _  |  -__|     | |_| |  |  |  ||  -__|__--|     |
 |_______||   __|_____|__|__|     |__|__|__||_____|____|__|__|
          |__|  http://www.open-mesh.com ---------------------

 Powered by these open source projects:

 http://www.blogin.it       http://kokoro.ucsd.edu/nodogsplash
 http://www.openwrt.org     http://www.open-mesh.org
 http://www.olsr.org        http://coova.org/
 +-+-+-+-+-+ +-+-+-+-+
 |r|o|b|i|n| |m|e|s|h|  by
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 +-+-+-+-+-+ +-+-+-+-+
  r2058 2.6.26.5 OLSR nodogsplash open-mesh
 -------------------------------------------------------------
root@Node_3_(Bullet2HP):~# iwlist txpower
lo        no transmit-power information.

eth0      no transmit-power information.

imq0      no transmit-power information.

imq1      no transmit-power information.

wifi0     no transmit-power information.

br-lan    no transmit-power information.

ath1      8 available transmit-powers :
          0 dBm         (1 mW)
          7 dBm         (5 mW)
          9 dBm         (7 mW)
          11 dBm        (12 mW)
          13 dBm        (19 mW)
          15 dBm        (31 mW)
          17 dBm        (50 mW)
          19 dBm        (79 mW)
          Current Tx-Power:19 dBm       (79 mW)

ath2      8 available transmit-powers :
          0 dBm         (1 mW)
          7 dBm         (5 mW)
          9 dBm         (7 mW)
          11 dBm        (12 mW)
          13 dBm        (19 mW)
          15 dBm        (31 mW)
          17 dBm        (50 mW)
          19 dBm        (79 mW)
          Current Tx-Power:19 dBm       (79 mW)

ath0      8 available transmit-powers :
          0 dBm         (1 mW)
          7 dBm         (5 mW)
          9 dBm         (7 mW)
          11 dBm        (12 mW)
          13 dBm        (19 mW)
          15 dBm        (31 mW)
          17 dBm        (50 mW)
          19 dBm        (79 mW)
          Current Tx-Power:19 dBm       (79 mW)

root@Node_3_(Bullet2HP):~#
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EricWarnke
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PostPosted: Wed Apr 29, 2009 4:16 pm    Post subject: Reply with quote

Can you set it to 1000mW? I thought that was the point of these things!

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bconverse
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PostPosted: Wed Apr 29, 2009 4:20 pm    Post subject: Reply with quote

From my limited understanding, the driver will have to told to support it - which I am sure Antonio is working on.
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EricWarnke
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PostPosted: Wed Apr 29, 2009 4:21 pm    Post subject: Reply with quote

Darn... I thought that was ready!

How about your NS2's? Do they put out high power already?

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bconverse
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PostPosted: Wed Apr 29, 2009 4:27 pm    Post subject: Reply with quote

All of our NS2 are used as bridges with stock firmware so I have yet to try them out. Wisp-Router has the EOC-1650 for $49 so I am going to try some of these as they seem to be working now with the regular firmware.
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EricWarnke
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PostPosted: Wed May 06, 2009 11:33 pm    Post subject: Reply with quote

Ok this is ridiculous. I got my NS2's and they're transmitting at 16dBm (39mW)... that's worse than the old crappy MR3021a's...

Any idea when this is getting an interface?

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ispyisail
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PostPosted: Thu May 07, 2009 12:20 am    Post subject: Reply with quote

I would do a physical range test!

I don't trust those figures?
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EricWarnke
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PostPosted: Thu May 07, 2009 12:24 am    Post subject: Reply with quote

Heh, good idea. It does seem to be repeating across my condo even though it's pointed face down on the floor. I'll set it up and do a range test ASAP and let you guys know how it turns out.

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ali
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PostPosted: Thu May 07, 2009 1:12 am    Post subject: Reply with quote

i believe that NS2 have better antenna AAP ,but engineus have better 32MB RAM, which one is better?
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EricWarnke
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PostPosted: Fri May 08, 2009 8:48 pm    Post subject: Reply with quote

Range test shows that it goes a few hundred meters even though it's going through a full building. That does seem sort of short considering the claim of going 15km point-to-point. I didn't think a condo would provide that much interference.

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minbari
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PostPosted: Fri Jan 08, 2010 9:56 pm    Post subject: Reply with quote

EricWarnke wrote:
Range test shows that it goes a few hundred meters even though it's going through a full building. That does seem sort of short considering the claim of going 15km point-to-point. I didn't think a condo would provide that much interference.


15Km point to point is an ideal situtuaion with 100% observance of all fresnel zone rules. if you just put omnis on these and put em 10 feet off the ground, you will be lucky to get 1/2 mile

to get those kinda distances you need to be about 40 ft off the ground with with very narrow-beam directional antennae.



as for the power issue. most of not all of the ubiquity stuff have ofsets biult into the radios. even if it says that they are only able to be set to 14dBM, they are internal offset 10 dBm, so you get a total of 24 dBm (or in the case of the HP model, you can set it as high as 19dBm. that is really 29)
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mtlowes
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PostPosted: Fri Jan 08, 2010 10:24 pm    Post subject: Reply with quote

EOC-2610's in point to point mode using internal antenna: longest distance connection I have is 17Km, 1 on a 90ft tower and the other on a 40ft tower.. Typical receive values of -70 to -75dbm and noisefloor at -96dbm.. able to sustain 54mbps links without issue

EOC-2610's in Mesh shooting 1570meters through trees, over water etc... 1 mounted 30ft the other 11ft using internal antenna. RSSI's sustainable at 18 to 26 with or without leaves on the trees.

Just for an idea of range v/s environment.
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