The TX is currently set to default in MT 2.9.51, whatever dB that turns out
to be. I was going to tune it once the system stabilized.
Maybe 20' of LMR-400.
No lightning arrestors. The other sectors on the tower sat there for years
without them and no damage, so when I upgraded and had the wrong pigtails to
use the existing arrestors, I removed them.
No amps, just the XR5s... I'd never use an amp.
Roughly 16 dBi gain for all 4 sectors pointed North, South, East, and West.
They all have roughly 5 degrees of downtilt.
No PoE, the MT system is a PC with a 4 slot mPCI adapter. The only other
cat 5 is going to an Orthogon Gemini (and it's PoE). This is pointed east
and is on the opposite side of the grain leg from the troubled sector.
Nothing else within 1 mile that uses upper 5 GHz. Well, there's CPE in
unknown bands, but they didn't affect the previous radio\antenna combo.
All customers use 19 or 24 dBi RooTennas, depending on distance from tower.
I believe everyone is between -60 and -75.
For some reason, some of these sectors are much louder than they were
previously, though I don't have any documentation as to who saw what before.
What do band-pass filters cost and where can I get them? Maybe I ought to
invest in some of those.
North, ICS1 = 5785
South, ICS2 = 5805
East, ICS4 = 5765
West, ICS3 = 5745
North = 1
=======
Flags: A - active, B - bss, P - privacy, R - routeros-network, N - nstreme
ADDRESS SSID
BAND FREQ SIG RADIO-NAME
AB R 00:15:6D:50:16:C6 ICS3
5ghz 5745 -49 00156D5016C6
AB R 00:15:6D:50:17:09 ICS4
5ghz 5765 -37 00156D501709
AB R 00:15:6D:64:0B:59 ICS2
5ghz 5805 -43 00156D640B59
AB RN 00:0C:42:05:51:B7 Walter
5ghz 5260 -71 000C420551B7
South = 2
=======
Flags: A - active, B - bss, P - privacy, R - routeros-network, N - nstreme
ADDRESS SSID
BAND FREQ SIG RADIO-NAME
AB R 00:15:6D:50:16:C6 ICS3
5ghz 5745 -51 00156D5016C6
AB R 00:15:6D:50:17:09 ICS4
5ghz 5765 -38 00156D501709
AB R 00:15:6D:64:0B:55 ICS1
5ghz 5785 -29 00156D640B55
East = 4
=======
Will run a scan during non-peak times.
West = 3
=======
Will run a scan during non-peak times.
Mikrotik reports a debatable noise floor reading, which is supposed to
represent all non-802.11 systems. It isn't worse than -99 on any sector.
----------
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
--------------------------------------------------
From: "Marlon K. Schafer" <[EMAIL PROTECTED]>
Sent: Wednesday, October 01, 2008 9:59 AM
To: "WISPA General List" <[email protected]>
Subject: Re: [WISPA] Bad radio?
> First, read this:
> http://www.enterprisenetworkingplanet.com/netsysm/article.php/3765946
>
> It might sound strange but sometimes RSSI can be effected by interference.
> It's important to run the calcs on what you're running. I have a nice
> spread sheet if you need a calculator. I really really miss the YDI
> online
> one. Nice and simple. Not full of junk no one uses. Oh well.
>
> To offer more realistic help here we need to know a lot more info....
>
> What TX power are the radios set for?
>
> How much coax?
>
> Lightning arrestors?
>
> Amps (db)?
>
> What antenna gain?
>
> If sectors, what coverage and how are they pointing? (example, customers
> are 500' lower than the antenna and 1 to 20 miles away. Antenna is
> downtilted 25*)
>
> How long are the cat 5 runs?
>
> Any other radio systems on that tower or near by (less than one mile)?
>
> If you do an ap scan from each AP (usually have to put them in client mode
> but some will do so via ap mode) how many other systems do you see and
> what
> levels do you see them at?
>
> Do you have the ability to run a general spectrum scan? If so, what does
> it
> show? (NOTE: If you run this test make sure to run a second test with
> all
> of the other AP's that you control turned off.)
>
> I turn the power wayyyyyy down on almost all of my AP's these days. Most
> are only putting out 15 to 20 dB. I use slightly larger customer antennas
> to make up for the AP TX power losses. This has REALLY helped the speeds
> and stability on my overall system. Believe it or not, I have customers
> at
> nearly 15 miles pulling 2 to 3 megs both ways via an 8 dB omni fed by a
> radio turned down to 17dB.
>
> I now have several customers over 15 miles that pull from 13dB sectors fed
> by 17dB ap's. Speeds are HIGHER than they were when I was running amped
> systems at 4 watts.
>
> Happy hunting!
> marlon
>
> ----- Original Message -----
> From: "Mike Hammett" <[EMAIL PROTECTED]>
> To: "WISPA General List" <[email protected]>
> Sent: Wednesday, October 01, 2008 6:48 AM
> Subject: Re: [WISPA] Bad radio?
>
>
>> okay, now 3 days later the new south radio (originally north) is
>> misbehaving
>> in the same way (Tx/Rx signals are off by 10 where on the other sectors
>> they're roughly balanced). The signals going back to the tower are 8 -
>> 10
>> db stronger than the received signals. An R52 (or possibly R52H) is
>> shooting back to the tower whereas an XR5 is shooting down to the CPE.
>> If
>> it were different radio specs, it'd be unbalanced the other way around.
>>
>> The SR5s that I have installed have been functioning just fine for years
>> and
>> are installed in the same fashion as the XR5s. Did UBNT make a bad batch
>> of
>> XR5s or am I doing something wrong?
>>
>>
>> ----------
>> Mike Hammett
>> Intelligent Computing Solutions
>> http://www.ics-il.com
>>
>>
>>
>> --------------------------------------------------
>> From: "Mike Hammett" <[EMAIL PROTECTED]>
>> Sent: Sunday, September 28, 2008 2:58 PM
>> To: "WISPA General List" <[email protected]>
>> Subject: Re: [WISPA] Bad radio?
>>
>>> I changed the freq a bit and didn't see any significant change. I
>>> climbed
>>> and swapped the pigtails with North and changed all the settings so they
>>> were fully swapped. Everyone on the south sector (which did have the
>>> questionable radio) is now happy. Now the North sector is showing the
>>> same
>>> symptoms on my test CPE. It's a good thing everyone except two are on
>>> East
>>> and West until I get this sorted out. Time to contact Streakwave about
>>> a
>>> bad radio...
>>>
>>>
>>> ----------
>>> Mike Hammett
>>> Intelligent Computing Solutions
>>> http://www.ics-il.com
>>>
>>>
>>>
>>> --------------------------------------------------
>>> From: "RickG" <[EMAIL PROTECTED]>
>>> Sent: Sunday, September 28, 2008 1:05 PM
>>> To: "WISPA General List" <[email protected]>
>>> Subject: Re: [WISPA] Bad radio?
>>>
>>>> It would be interesting to switch the freqs around and see what
>>>> happens. It's probably a bad radio or cable though. -RickG
>>>>
>>>> On Sun, Sep 28, 2008 at 1:06 PM, Mike Hammett
>>>> <[EMAIL PROTECTED]>
>>>> wrote:
>>>>> Does this seem like the radio isn't loud enough?
>>>>>
>>>>> I setup the test CPE on the TV tower at my house and pointed it at the
>>>>> tower. Radio Mobile reports the azimuth as 250 degrees, so well
>>>>> within
>>>>> the south sector's coverage and only at a distance of 230'. I am well
>>>>> below the vertical beamwidth of the sectors, explaining the relatively
>>>>> low signals, but ICS2 is horrible.
>>>>>
>>>>> 1 = North, 2 = South, 3 = West, 4 = East.
>>>>>
>>>>> It makes no sense that South is that much worse signal wise than the
>>>>> others, especially considering that it should be on the South sector
>>>>> anyway. 3 and 4 are SR5s while 1 and 2 are XR5s. I just replaced the
>>>>> towers with the XR5s.
>>>>>
>>>>>
>>>>>
>>>>> [EMAIL PROTECTED] Test Platform] > /interface wireless scan wlan1
>>>>> Flags: A - active, B - bss, P - privacy, R - routeros-network, N -
>>>>> nstreme
>>>>> ADDRESS SSID BAND
>>>>> FREQ
>>>>> SIG NF SNR RADIO-NAME
>>>>> AB R 00:15:6D:50:16:C6 ICS3 5ghz
>>>>> 5745 -72 -99 27 00156D5016C6
>>>>> AB R 00:15:6D:50:17:09 ICS4 5ghz
>>>>> 5765 -68 -99 31 00156D501709
>>>>> AB R 00:15:6D:64:0B:59 ICS1 5ghz
>>>>> 5785 -77 -99 22 00156D640B59
>>>>> AB R 00:15:6D:64:0B:55 ICS2 5ghz
>>>>> 5825 -85 -99 14 00156D640B55
>>>>>
>>>>>
>>>>> Here is a listing of the signals when connected:
>>>>>
>>>>> [EMAIL PROTECTED] Test Platform] > /interface wireless monitor wlan1
>>>>> status: connected-to-ess
>>>>> band: 5ghz
>>>>> frequency: 5785MHz
>>>>> tx-rate: "6Mbps"
>>>>> rx-rate: "6Mbps"
>>>>> ssid: "ICS1"
>>>>> bssid: 00:15:6D:64:0B:59
>>>>> radio-name: "00156D640B59"
>>>>> signal-strength: -77dBm
>>>>> tx-signal-strength: -74dBm
>>>>> noise-floor: -107dBm
>>>>> signal-to-noise: 30dB
>>>>> tx-ccq: 58%
>>>>> p-throughput: 5481
>>>>> overall-tx-ccq: 58%
>>>>> authenticated-clients: 1
>>>>> current-ack-timeout: 28
>>>>> wds-link: no
>>>>> nstreme: no
>>>>> framing-mode: none
>>>>> routeros-version: "2.9.51"
>>>>> last-ip: 10.10.1.1
>>>>> 802.1x-port-enabled: yes
>>>>> compression: no
>>>>> current-tx-powers:
>>>>> 6Mbps:24(24),9Mbps:24(24),12Mbps:24(24),18Mbps:24(24),24Mbps:24(24),36Mbps:22(22),48Mbps:20(20),54Mbps:19(19)
>>>>> notify-external-fdb: no
>>>>>
>>>>>
>>>>> [EMAIL PROTECTED] Test Platform] > /interface wireless monitor wlan1
>>>>> status: connected-to-ess
>>>>> band: 5ghz
>>>>> frequency: 5825MHz
>>>>> tx-rate: "6Mbps"
>>>>> rx-rate: "6Mbps"
>>>>> ssid: "ICS2"
>>>>> bssid: 00:15:6D:64:0B:55
>>>>> radio-name: "00156D640B55"
>>>>> signal-strength: -86dBm
>>>>> tx-signal-strength: -76dBm
>>>>> noise-floor: -107dBm
>>>>> signal-to-noise: 21dB
>>>>> tx-ccq: 59%
>>>>> p-throughput: 5535
>>>>> overall-tx-ccq: 58%
>>>>> authenticated-clients: 1
>>>>> current-ack-timeout: 167
>>>>> wds-link: no
>>>>> nstreme: no
>>>>> framing-mode: none
>>>>> routeros-version: "2.9.51"
>>>>> 802.1x-port-enabled: yes
>>>>> compression: no
>>>>> current-tx-powers:
>>>>> 6Mbps:24(24),9Mbps:24(24),12Mbps:24(24),18Mbps:24(24),24Mbps:24(24),36Mbps:22(22),48Mbps:20(20),54Mbps:19(19)
>>>>> notify-external-fdb: no
>>>>> -- [Q quit|D dump|C-z pause]
>>>>>
>>>>>
>>>>> [EMAIL PROTECTED] Test Platform] > /interface wireless monitor wlan1
>>>>> status: connected-to-ess
>>>>> band: 5ghz
>>>>> frequency: 5745MHz
>>>>> tx-rate: "6Mbps"
>>>>> rx-rate: "6Mbps"
>>>>> ssid: "ICS3"
>>>>> bssid: 00:15:6D:50:16:C6
>>>>> radio-name: "00156D5016C6"
>>>>> signal-strength: -74dBm
>>>>> tx-signal-strength: -70dBm
>>>>> noise-floor: -106dBm
>>>>> signal-to-noise: 32dB
>>>>> tx-ccq: 59%
>>>>> p-throughput: 5518
>>>>> overall-tx-ccq: 59%
>>>>> authenticated-clients: 1
>>>>> current-ack-timeout: 28
>>>>> wds-link: no
>>>>> nstreme: no
>>>>> framing-mode: none
>>>>> routeros-version: "2.9.51"
>>>>> last-ip: 10.10.3.5
>>>>> 802.1x-port-enabled: yes
>>>>> compression: no
>>>>> current-tx-powers:
>>>>> 6Mbps:24(24),9Mbps:24(24),12Mbps:24(24),18Mbps:24(24),24Mbps:24(24),36Mbps:22(22),48Mbps:20(20),54Mbps:19(19)
>>>>> notify-external-fdb: no
>>>>>
>>>>> [EMAIL PROTECTED] Test Platform] > /interface wireless monitor wlan1
>>>>> status: connected-to-ess
>>>
>>>
>>>
>>> --------------------------------------------------------------------------------
>>> WISPA Wants You! Join today!
>>> http://signup.wispa.org/
>>> --------------------------------------------------------------------------------
>>>
>>> WISPA Wireless List: [email protected]
>>>
>>> Subscribe/Unsubscribe:
>>> http://lists.wispa.org/mailman/listinfo/wireless
>>>
>>> Archives: http://lists.wispa.org/pipermail/wireless/
>>>
>>
>>
>> --------------------------------------------------------------------------------
>> WISPA Wants You! Join today!
>> http://signup.wispa.org/
>> --------------------------------------------------------------------------------
>>
>> WISPA Wireless List: [email protected]
>>
>> Subscribe/Unsubscribe:
>> http://lists.wispa.org/mailman/listinfo/wireless
>>
>> Archives: http://lists.wispa.org/pipermail/wireless/
>
>
>
> --------------------------------------------------------------------------------
> WISPA Wants You! Join today!
> http://signup.wispa.org/
> --------------------------------------------------------------------------------
>
> WISPA Wireless List: [email protected]
>
> Subscribe/Unsubscribe:
> http://lists.wispa.org/mailman/listinfo/wireless
>
> Archives: http://lists.wispa.org/pipermail/wireless/
>
--------------------------------------------------------------------------------
WISPA Wants You! Join today!
http://signup.wispa.org/
--------------------------------------------------------------------------------
WISPA Wireless List: [email protected]
Subscribe/Unsubscribe:
http://lists.wispa.org/mailman/listinfo/wireless
Archives: http://lists.wispa.org/pipermail/wireless/
