TSF » Historique » Version 72
Version 71 (Laurent GUERBY, 24/04/2014 17:38) → Version 72/75 (Laurent GUERBY, 24/04/2014 17:39)
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h1. TSF
Also see [[AirOS]]
h2. Tests radio
[[RadioPechDavid20120727]]
h2. Antennas
http://dl.ubnt.com/docs/UWC/2012_Chicago/UWC-AirMax_Matt.pdf
h2. Revolution
LOS problems due to tree? Announcing the revolutionary AirFresnelCleaner
http://forum.ubnt.com/showthread.php?t=50439
h2. Propagation loss
http://www.ko4bb.com/Manuals/05)_GPS_Timing/E10589_Propagation_Losses_2_and_5GHz.pdf
VHF/UHF/Microwave Radio Propagation: A Primer for Digital Experimenters http://www.tapr.org/ve3jf.dcc97.html
h2. Path Loss
http://en.wikipedia.org/wiki/Path_loss
http://wiki.ubnt.com/AirMax_Products
http://dl.ubnt.com/UBNT-gain_matrix_2.pdf
http://www.distributed-wireless.com/calculators/pathloss_RSSI.html
http://www.complextoreal.com/chapters/linkbud.pdf
http://www.wirelessconnections.net/calcs/FresnelZone.asp
http://www.zytrax.com/tech/wireless/calc.htm
http://www.wlanantennas.com/fresnel_zone.php
<pre>
Path loss 5.8 GHz (for 2.4 GHz remove 8 dB)
0.5 km 102 dB 2.5m
1.0 km 108 dB 3.6m
1.5 km 111 dB
2.0 km 114 dB 5.1m (5.2 at 5.5 GHz 7.91 at 2.4 GHz)
2.5 km 116 dB
3.0 km 117 dB
4.0 km 120 dB 7.2m
5.0 km 121 dB
6.0 km 123 dB
7.5 km 125 dB
8.0 km 126 dB 10.2m
10 km 128 dB
12 km 129 dB
15 km 131 dB
16 km 132 dB
20 km 134 dB
24 km 135 dB
26 km 136 dB
32 km 138 dB
40 km 140 dB
50 km 142 dB
60 km 143 dB
80 km 146 dB
100 km 148 dB
150 km 151 dB
</pre>
MCS15 -75
<pre>
-x + g + 27 = -75
x = g + 27 + 75
</pre>
Loco g = 13 x = 115 ~ 2 km
NS g = 16 x = 118 ~ 3 km
5G19 g = 19 x = 121 ~ 5 km
5G20 g = 20 x = 122 ~ 5.5 km
NB22 g = 22 x = 124 ~ 6 km
NB25 g = 25 x = 127 ~ 8 km
RD30 g = 30 x = 132 ~ 16 km
RD34 g = 34 x = 136 ~ 26 km
MCS12 -84 x=g+27+84=g+111
Loco g = 13 x = 124 ~ 6 km
NS g = 16 x = 127 ~ 8 km
5G19 g = 19 x = 130 ~ 14 km
5G20 g = 20 x = 131 ~ 15 km
NB22 g = 22 x = 133 ~ 18 km
NB25 g = 25 x = 136 ~ 26 km
RD30 g = 30 x = 141 ~ 45 km
RD34 g = 34 x = 145 ~ 70 km
MCS0 -96 x=g+27+96=g+123
Loco g = 13 x = 136 ~ 26 km
NS g = 16 x = 139 ~ 35 km
5G19 g = 19 x = 142 ~ 50 km
5G20 g = 20 x = 143 ~ 60 km
NB22 g = 22 x = 145 ~ 70 km
NB25 g = 25 x = 148 ~ 100 km
RD30 g = 30 x = 153 ~ 150+ km
RD34 g = 34 x = 157 ~ 150+ km
http://dl.ubnt.com/UBNT-MIMO_Data_Rates_2.pdf
<pre>
MCS MOD Spatial Streams 40Mhz channel 20Mhz channel 10MHz channel 5Mhz channel
400ns GI 800ns GI 800ns GI 800ns GI
0 BPSK 1X1 15 6.5 3.25 1.625
1 QPSK 1X1 30 13 6.5 3.25
2 QPSK 1X1 45 19.5 9.75 4.875
3 16-QAM 1X1 60 26 13 6.5
4 16-QAM 1X1 90 39 19.5 9.75
5 64-QAM 1X1 120 52 26 13
6 64-QAM 1X1 135 58.5 29.25 14.625
7 64-QAM 1X1 150 65 32.5 16.25
8 BPSK 2X2 30 13 6.5 3.25
9 QPSK 2X2 60 26 13 6.5
10 QPSK 2X2 90 39 19.5 9.75
11 16-QAM 2X2 120 52 26 13
12 16-QAM 2X2 180 78 39 19.5
13 64-QAM 2X2 240 104 52 26
14 64-QAM 2X2 270 117 58.5 29.25
15 64-QAM 2X2 300 130 65 32.5
</pre>
<pre>
Rocket M5
TX
MCS0 27 dBm +/- 2 dB
MCS1 27 dBm +/- 2 dB
MCS2 27 dBm +/- 2 dB
MCS3 27 dBm +/- 2 dB
MCS4 26 dBm +/- 2 dB
MCS5 24 dBm +/- 2 dB
MCS6 22 dBm +/- 2 dB
MCS7 21 dBm +/- 2 dB
MCS8 27 dBm +/- 2 dB
MCS9 27 dBm +/- 2 dB
MCS10 27 dBm +/- 2 dB
MCS11 27 dBm +/- 2 dB
MCS12 26 dBm +/- 2 dB
MCS13 24 dBm +/- 2 dB
MCS14 22 dBm +/- 2 dB
MCS15 21 dBm +/- 2 dB
RX
MCS0 -96 dBm +/- 2 dB
MCS1 -95 dBm +/- 2 dB
MCS2 -92 dBm +/- 2 dB
MCS3 -90 dBm +/- 2 dB
MCS4 -86 dBm +/- 2 dB
MCS5 -83 dBm +/- 2 dB
MCS6 -77 dBm +/- 2 dB
MCS7 -74 dBm +/- 2 dB
MCS8 -95 dBm +/- 2 dB
MCS9 -93 dBm +/- 2 dB
MCS10 -90 dBm +/- 2 dB
MCS11 -87 dBm +/- 2 dB
MCS12 -84 dBm +/- 2 dB
MCS13 -79 dBm +/- 2 dB
MCS14 -78 dBm +/- 2 dB
MCS15 -75 dBm +/- 2 dB
Rocket M2
TX
MCS0 28 dBm +/- 2 dB
MCS1 28 dBm +/- 2 dB
MCS2 28 dBm +/- 2 dB
MCS3 28 dBm +/- 2 dB
MCS4 27 dBm +/- 2 dB
MCS5 25 dBm +/- 2 dB
MCS6 23 dBm +/- 2 dB
MCS7 22 dBm +/- 2 dB
MCS8 28 dBm +/- 2 dB
MCS9 28 dBm +/- 2 dB
MCS10 28 dBm +/- 2 dB
MCS11 28 dBm +/- 2 dB
MCS12 27 dBm +/- 2 dB
MCS13 25 dBm +/- 2 dB
MCS14 23 dBm +/- 2 dB
MCS15 22 dBm +/- 2 dB
RX
MCS0 -96 dBm +/- 2 dB
MCS1 -95 dBm +/- 2 dB
MCS2 -92 dBm +/- 2 dB
MCS3 -90 dBm +/- 2 dB
MCS4 -86 dBm +/- 2 dB
MCS5 -83 dBm +/- 2 dB
MCS6 -77 dBm +/- 2 dB
MCS7 -74 dBm +/- 2 dB
MCS8 -95 dBm +/- 2 dB
MCS9 -93 dBm +/- 2 dB
MCS10 -90 dBm +/- 2 dB
MCS11 -87 dBm +/- 2 dB
MCS12 -84 dBm +/- 2 dB
MCS13 -79 dBm +/- 2 dB
MCS14 -78 dBm +/- 2 dB
MCS15 -75 dBm +/- 2 dB
</pre>
h2. Fixation serre joint
http://doc.rhizome-fai.net/doku.php?id=howto:deploiement:fixer_une_antenne
h2. Noise
http://ml.ninux.org/pipermail/battlemesh/2014-April/002924.html
It depends a bit on the receiver's quality, I've had experiences where
the SNR could drop to about 8 and the link would still somewhat work.
The thermal noise is mostly intrinsic to how energy relates at a
particle level, this is denoted by the Boltzmann constant (k).
Further, it depends on the bandwidth (B) used and temperature (T).
Nthermal = B * k * T = 20*10^6 Hz (802.11 channel) * 1.38065*10^-23 J/K
* 300 K (27 Celsius) ~= 8.28 * 10^-11
This gives the noise in Watts, to change it to dBm (which references
miliWatts), you take 10*log10( N * 1000 ) ~= -100.
[1] Has a nice table with examples of this noise.
In reality, there's more interference than just from the temperature.
It's quite probable your receiver adds another 5 dBm to its reported
noise to account for this.
I also recall from my time working on my thesis that receivers/drivers
tend to return a static value for noise, rather than actually measure
it.
[1] http://en.wikipedia.org/wiki/Thermal_noise#Noise_power_in_decibels
h2. DFS radars meteo
* ETSI EN 301 893 v1.7.0 (2012-01)
** http://www.etsi.org/deliver/etsi_en/301800_301899/301893/01.07.00_40/en_301893v010700o.pdf
* ETSI and Europe http://forum.ubnt.com/showthread.php?t=52560
* power density and ETSI http://forum.ubnt.com/showthread.php?t=53123
* "2. Slave devices with a maximum EIRP of less than 23 dBm do not have to implement radar detection." - Table D.2 http://linuxwireless.org/en/developers/DFS/ETSI
* http://www.etsi.org/deliver/etsi_en/301800_301899/301893/01.07.01_60/en_301893v010701p.pdf
** http://community.ubnt.com/t5/airOS-Beta/Alleviating-the-lack-of-quot-compliance-test-quot/m-p/744726#U744726
* [PATCH 0/4] ath9k: integrate DFS detection http://www.mail-archive.com/ath9k-devel@lists.ath9k.org/msg08370.html
* http://education.meteofrance.com/jsp/site/Portal.jsp?page_id=12060&document_id=21887&portlet_id=53478
* DFS and AirOS 5.5 http://forum.ubnt.com/showthread.php?t=44105&page=8
* Toulouse meteo france 5625 MHz
* http://www.ladepeche.fr/article/2002/10/31/352210-un-radar-meteo-couvrira-le-tarn-et-l-aveyron.html
** radar meteo pres d'Albi lieu dit « Le Puech », commune de Monclar.
** 5640 MHz ?
* liste des radars en Europe : EUMETNET/OPERA - Radar Network http://www.eumetnet.eu/radar-network
** marche plus : http://www.knmi.nl/opera/euradars3.html
<pre>
From: Jocelyn Delalande jocelyn.lists2012 at crapouillou.net
Reply-to: fai-locaux at fdn.fr
To: fai-locaux at fdn.fr
Subject: Re: [fai-locaux] Ubiquiti - Support du DFS
Date: Sun, 15 Apr 2012 19:12:56 +0200
Mailer: Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20120129 Thunderbird/10.0
Au passage, j'ai pu trouver une liste des radars météo en Europe
données en KMZ, présentées sur une carte où dans une interface maison.
http://www.knmi.nl/opera/euradars3.html
La bande qui nous intéresse est la "C band" chaque radar présente des
contacts administratifs, sa fréquence précise et son rayon d'action
approximatif. Pratique… Rien ne dit que ça ne soit exhaustif de l'usage
radar de la bande 5GHzet ça n'enlève rien à la nécessité légale
d'activer la DFS ceci-dit… Comme disait burban, y'a peut-être du militaire.
Ciao,
Jocelyn
</pre>
h2. Equipe de deploiement
Le groupe TSF est mis en "group watch" de tous les projets de deploiement : inscrivez-vous dans ce groupe pour être tenu au courant de toute évolution ou nouveau projet.
h2. Obsolète
Issue #147
Groupe de suivi manuel par Laurent en attendant
https://www.chiliproject.org/issues/802
* Laurent GUERBY
* Adrien
* bikepunk
* Théo
* Jérémie Dimino
* Sylvain F
* Jocelyn Delalande
h1. TSF
Also see [[AirOS]]
h2. Tests radio
[[RadioPechDavid20120727]]
h2. Antennas
http://dl.ubnt.com/docs/UWC/2012_Chicago/UWC-AirMax_Matt.pdf
h2. Revolution
LOS problems due to tree? Announcing the revolutionary AirFresnelCleaner
http://forum.ubnt.com/showthread.php?t=50439
h2. Propagation loss
http://www.ko4bb.com/Manuals/05)_GPS_Timing/E10589_Propagation_Losses_2_and_5GHz.pdf
VHF/UHF/Microwave Radio Propagation: A Primer for Digital Experimenters http://www.tapr.org/ve3jf.dcc97.html
h2. Path Loss
http://en.wikipedia.org/wiki/Path_loss
http://wiki.ubnt.com/AirMax_Products
http://dl.ubnt.com/UBNT-gain_matrix_2.pdf
http://www.distributed-wireless.com/calculators/pathloss_RSSI.html
http://www.complextoreal.com/chapters/linkbud.pdf
http://www.wirelessconnections.net/calcs/FresnelZone.asp
http://www.zytrax.com/tech/wireless/calc.htm
http://www.wlanantennas.com/fresnel_zone.php
<pre>
Path loss 5.8 GHz (for 2.4 GHz remove 8 dB)
0.5 km 102 dB 2.5m
1.0 km 108 dB 3.6m
1.5 km 111 dB
2.0 km 114 dB 5.1m (5.2 at 5.5 GHz 7.91 at 2.4 GHz)
2.5 km 116 dB
3.0 km 117 dB
4.0 km 120 dB 7.2m
5.0 km 121 dB
6.0 km 123 dB
7.5 km 125 dB
8.0 km 126 dB 10.2m
10 km 128 dB
12 km 129 dB
15 km 131 dB
16 km 132 dB
20 km 134 dB
24 km 135 dB
26 km 136 dB
32 km 138 dB
40 km 140 dB
50 km 142 dB
60 km 143 dB
80 km 146 dB
100 km 148 dB
150 km 151 dB
</pre>
MCS15 -75
<pre>
-x + g + 27 = -75
x = g + 27 + 75
</pre>
Loco g = 13 x = 115 ~ 2 km
NS g = 16 x = 118 ~ 3 km
5G19 g = 19 x = 121 ~ 5 km
5G20 g = 20 x = 122 ~ 5.5 km
NB22 g = 22 x = 124 ~ 6 km
NB25 g = 25 x = 127 ~ 8 km
RD30 g = 30 x = 132 ~ 16 km
RD34 g = 34 x = 136 ~ 26 km
MCS12 -84 x=g+27+84=g+111
Loco g = 13 x = 124 ~ 6 km
NS g = 16 x = 127 ~ 8 km
5G19 g = 19 x = 130 ~ 14 km
5G20 g = 20 x = 131 ~ 15 km
NB22 g = 22 x = 133 ~ 18 km
NB25 g = 25 x = 136 ~ 26 km
RD30 g = 30 x = 141 ~ 45 km
RD34 g = 34 x = 145 ~ 70 km
MCS0 -96 x=g+27+96=g+123
Loco g = 13 x = 136 ~ 26 km
NS g = 16 x = 139 ~ 35 km
5G19 g = 19 x = 142 ~ 50 km
5G20 g = 20 x = 143 ~ 60 km
NB22 g = 22 x = 145 ~ 70 km
NB25 g = 25 x = 148 ~ 100 km
RD30 g = 30 x = 153 ~ 150+ km
RD34 g = 34 x = 157 ~ 150+ km
http://dl.ubnt.com/UBNT-MIMO_Data_Rates_2.pdf
<pre>
MCS MOD Spatial Streams 40Mhz channel 20Mhz channel 10MHz channel 5Mhz channel
400ns GI 800ns GI 800ns GI 800ns GI
0 BPSK 1X1 15 6.5 3.25 1.625
1 QPSK 1X1 30 13 6.5 3.25
2 QPSK 1X1 45 19.5 9.75 4.875
3 16-QAM 1X1 60 26 13 6.5
4 16-QAM 1X1 90 39 19.5 9.75
5 64-QAM 1X1 120 52 26 13
6 64-QAM 1X1 135 58.5 29.25 14.625
7 64-QAM 1X1 150 65 32.5 16.25
8 BPSK 2X2 30 13 6.5 3.25
9 QPSK 2X2 60 26 13 6.5
10 QPSK 2X2 90 39 19.5 9.75
11 16-QAM 2X2 120 52 26 13
12 16-QAM 2X2 180 78 39 19.5
13 64-QAM 2X2 240 104 52 26
14 64-QAM 2X2 270 117 58.5 29.25
15 64-QAM 2X2 300 130 65 32.5
</pre>
<pre>
Rocket M5
TX
MCS0 27 dBm +/- 2 dB
MCS1 27 dBm +/- 2 dB
MCS2 27 dBm +/- 2 dB
MCS3 27 dBm +/- 2 dB
MCS4 26 dBm +/- 2 dB
MCS5 24 dBm +/- 2 dB
MCS6 22 dBm +/- 2 dB
MCS7 21 dBm +/- 2 dB
MCS8 27 dBm +/- 2 dB
MCS9 27 dBm +/- 2 dB
MCS10 27 dBm +/- 2 dB
MCS11 27 dBm +/- 2 dB
MCS12 26 dBm +/- 2 dB
MCS13 24 dBm +/- 2 dB
MCS14 22 dBm +/- 2 dB
MCS15 21 dBm +/- 2 dB
RX
MCS0 -96 dBm +/- 2 dB
MCS1 -95 dBm +/- 2 dB
MCS2 -92 dBm +/- 2 dB
MCS3 -90 dBm +/- 2 dB
MCS4 -86 dBm +/- 2 dB
MCS5 -83 dBm +/- 2 dB
MCS6 -77 dBm +/- 2 dB
MCS7 -74 dBm +/- 2 dB
MCS8 -95 dBm +/- 2 dB
MCS9 -93 dBm +/- 2 dB
MCS10 -90 dBm +/- 2 dB
MCS11 -87 dBm +/- 2 dB
MCS12 -84 dBm +/- 2 dB
MCS13 -79 dBm +/- 2 dB
MCS14 -78 dBm +/- 2 dB
MCS15 -75 dBm +/- 2 dB
Rocket M2
TX
MCS0 28 dBm +/- 2 dB
MCS1 28 dBm +/- 2 dB
MCS2 28 dBm +/- 2 dB
MCS3 28 dBm +/- 2 dB
MCS4 27 dBm +/- 2 dB
MCS5 25 dBm +/- 2 dB
MCS6 23 dBm +/- 2 dB
MCS7 22 dBm +/- 2 dB
MCS8 28 dBm +/- 2 dB
MCS9 28 dBm +/- 2 dB
MCS10 28 dBm +/- 2 dB
MCS11 28 dBm +/- 2 dB
MCS12 27 dBm +/- 2 dB
MCS13 25 dBm +/- 2 dB
MCS14 23 dBm +/- 2 dB
MCS15 22 dBm +/- 2 dB
RX
MCS0 -96 dBm +/- 2 dB
MCS1 -95 dBm +/- 2 dB
MCS2 -92 dBm +/- 2 dB
MCS3 -90 dBm +/- 2 dB
MCS4 -86 dBm +/- 2 dB
MCS5 -83 dBm +/- 2 dB
MCS6 -77 dBm +/- 2 dB
MCS7 -74 dBm +/- 2 dB
MCS8 -95 dBm +/- 2 dB
MCS9 -93 dBm +/- 2 dB
MCS10 -90 dBm +/- 2 dB
MCS11 -87 dBm +/- 2 dB
MCS12 -84 dBm +/- 2 dB
MCS13 -79 dBm +/- 2 dB
MCS14 -78 dBm +/- 2 dB
MCS15 -75 dBm +/- 2 dB
</pre>
h2. Fixation serre joint
http://doc.rhizome-fai.net/doku.php?id=howto:deploiement:fixer_une_antenne
h2. Noise
http://ml.ninux.org/pipermail/battlemesh/2014-April/002924.html
It depends a bit on the receiver's quality, I've had experiences where
the SNR could drop to about 8 and the link would still somewhat work.
The thermal noise is mostly intrinsic to how energy relates at a
particle level, this is denoted by the Boltzmann constant (k).
Further, it depends on the bandwidth (B) used and temperature (T).
Nthermal = B * k * T = 20*10^6 Hz (802.11 channel) * 1.38065*10^-23 J/K
* 300 K (27 Celsius) ~= 8.28 * 10^-11
This gives the noise in Watts, to change it to dBm (which references
miliWatts), you take 10*log10( N * 1000 ) ~= -100.
[1] Has a nice table with examples of this noise.
In reality, there's more interference than just from the temperature.
It's quite probable your receiver adds another 5 dBm to its reported
noise to account for this.
I also recall from my time working on my thesis that receivers/drivers
tend to return a static value for noise, rather than actually measure
it.
[1] http://en.wikipedia.org/wiki/Thermal_noise#Noise_power_in_decibels
h2. DFS radars meteo
* ETSI EN 301 893 v1.7.0 (2012-01)
** http://www.etsi.org/deliver/etsi_en/301800_301899/301893/01.07.00_40/en_301893v010700o.pdf
* ETSI and Europe http://forum.ubnt.com/showthread.php?t=52560
* power density and ETSI http://forum.ubnt.com/showthread.php?t=53123
* "2. Slave devices with a maximum EIRP of less than 23 dBm do not have to implement radar detection." - Table D.2 http://linuxwireless.org/en/developers/DFS/ETSI
* http://www.etsi.org/deliver/etsi_en/301800_301899/301893/01.07.01_60/en_301893v010701p.pdf
** http://community.ubnt.com/t5/airOS-Beta/Alleviating-the-lack-of-quot-compliance-test-quot/m-p/744726#U744726
* [PATCH 0/4] ath9k: integrate DFS detection http://www.mail-archive.com/ath9k-devel@lists.ath9k.org/msg08370.html
* http://education.meteofrance.com/jsp/site/Portal.jsp?page_id=12060&document_id=21887&portlet_id=53478
* DFS and AirOS 5.5 http://forum.ubnt.com/showthread.php?t=44105&page=8
* Toulouse meteo france 5625 MHz
* http://www.ladepeche.fr/article/2002/10/31/352210-un-radar-meteo-couvrira-le-tarn-et-l-aveyron.html
** radar meteo pres d'Albi lieu dit « Le Puech », commune de Monclar.
** 5640 MHz ?
* liste des radars en Europe : EUMETNET/OPERA - Radar Network http://www.eumetnet.eu/radar-network
** marche plus : http://www.knmi.nl/opera/euradars3.html
<pre>
From: Jocelyn Delalande jocelyn.lists2012 at crapouillou.net
Reply-to: fai-locaux at fdn.fr
To: fai-locaux at fdn.fr
Subject: Re: [fai-locaux] Ubiquiti - Support du DFS
Date: Sun, 15 Apr 2012 19:12:56 +0200
Mailer: Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20120129 Thunderbird/10.0
Au passage, j'ai pu trouver une liste des radars météo en Europe
données en KMZ, présentées sur une carte où dans une interface maison.
http://www.knmi.nl/opera/euradars3.html
La bande qui nous intéresse est la "C band" chaque radar présente des
contacts administratifs, sa fréquence précise et son rayon d'action
approximatif. Pratique… Rien ne dit que ça ne soit exhaustif de l'usage
radar de la bande 5GHzet ça n'enlève rien à la nécessité légale
d'activer la DFS ceci-dit… Comme disait burban, y'a peut-être du militaire.
Ciao,
Jocelyn
</pre>
h2. Equipe de deploiement
Le groupe TSF est mis en "group watch" de tous les projets de deploiement : inscrivez-vous dans ce groupe pour être tenu au courant de toute évolution ou nouveau projet.
h2. Obsolète
Issue #147
Groupe de suivi manuel par Laurent en attendant
https://www.chiliproject.org/issues/802
* Laurent GUERBY
* Adrien
* bikepunk
* Théo
* Jérémie Dimino
* Sylvain F
* Jocelyn Delalande