Re: [WISPA] MikroTik 5.8GHz Radio cards and settings.
OOPs, I'm writing quicker than I'm thinking, and
getting myself confused. I'm not using the Amp with the Range 2.
The subscriber side had a Range2 (400watt). The AP
side had a CM9 with Rflinx 250W Amp (802.11G model).
Some weird things had happened, like I had an
antenna and amp plugged on one of the ports, and not the other, and when I
changed antennas in Star OS, I only got a db or two difference in signal
strength. Swapped all the gear and cales had same results. Changed
channels, and problems went a way. It was one of those days that broke all laws
of science and just didn't add up. We also tried changing ports on SU
side at stages during the tests, which is why I asked the question
regarding the Range2s. Its was a site from hell. I started the job out
with 13db radios, as it appeared to be a LOS installation, with some
possible Freznel zone blockage. But unfortuneately they were pine trees.
We got them working, but lots of reliabilty issues. We are actually converting
some of it to 900Mhz next week, and swapping to a 180 deg Sector antenna at AP
instead of the Omni. Its a farm with no one else around for 5-10 square miles.
But there was more noise than expected. The High power was needed to get
past all the Almost-LOS issues with Trees. When we go back, we are swapping
all the pigtails with another brand just for confirmation. Its just helpful to
go back with known facts regarding what to expect from the Range cards, and make
sure we use the optimal port.
Tom DeReggiRapidDSL & Wireless, IncIntAirNet- Fixed Wireless
Broadband
- Original Message -
From:
Blair Davis
To: WISPA General List
Sent: Friday, February 10, 2006 9:49
AM
Subject: Re: [WISPA] MikroTik 5.8GHz
Radio cards and settings.
Tom,The first batch of SR5 cards had a problem with
their mmxc port. Low or no output when selected. The u.fl port was
said to be ok.If you don't mind, why would you use amps with a 400mW
radio card? I'd expect you to be overloading the input on the amps and
making all kinds of noiseTom DeReggi wrote:
What exactly is the old mmcx problem? I had
some original batch Range2's (or is that range 3s, the 2,4Ghz G
ones) that were giving me sparatic performance at a site, used with
RfLink Amps, and the mmcx port.
Tom DeReggiRapidDSL & Wireless, IncIntAirNet- Fixed
Wireless Broadband
-
Original Message -
From:
Blair Davis
To:
[EMAIL PROTECTED]
Cc:
'WISPA
General List'
Sent:
Thursday, February 09, 2006 3:04 PM
Subject:
Re: [WISPA] MikroTik 5.8GHz Radio cards and settings.
I was/am aware of the mmcx issue and all tests were done
with the same u.fl pigtails on each end. When the radio cards were
changed, the same u.fl pigtails were used. Only the radio cards were
changed.They were the older SR5 cards with the mmcx problem.
(proven by testing!!) The mmcx port was down 6db from the u.fl
port.[EMAIL PROTECTED] wrote:
What pigtails and connectors? Mmcx on the SR5 or u.fl? are these new SR5's or
older sr'5s?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf
Of Blair Davis
Sent: Thursday, February 09, 2006 2:08 PM
To: WISPA General List
Subject: [WISPA] MikroTik 5.8GHz Radio cards and settings.
Hey all:
I'm getting some odd results here with a PtP 5.8GHz link using MikroTik
that I setup to test with. Let me describe the setup...
The link is 7.9 miles with clear LoS and clear Frenel zone. Each end
has a 27db grid with a 3ft LMR-400 jumper to the MikroTik radio.
Using the link calculator at
http://www.zytrax.com/tech/wireless/calc.htm I get a predicted rx of
-60.8db at each end with CM9 radio cards (17db output). Using the SR5
cards, (400mW), I get a predicted rx of -51.8
On to the real world results (all reading taken from the MikroTik's
winbox. I am using version 2.9.11 on RouterBoard 230's)
With the CM9 cards, I get a measured rx of -62db, well within the margin
of error. An interesting note here is that I must set the CM9's output
power in the MikroTik at 30db to get these results.. I know that the
MikroTik must be doing something odd with this setting, as the CM9 can
not put out 30db. Reducing the setting drops the rx strenth by a like
amount. This link is stable and will pass 30Mb/sec in UDP and 22Mb/sec
in TCP mode
With the SR5 cards, I get a measured rx of -66db, well outside the
margin of error and 15db below the expected rx strength! An interesting
note here is that I must set the SR5's output power in the MikroTik at
30db to get these results. I know that the MikroTik must be doing
something odd with this setting, as the SR5 should not put out 30db.
Reducing the
Re: [WISPA] MikroTik 5.8GHz Radio cards and settings.
Tom, The first batch of SR5 cards had a problem with their mmxc port. Low or no output when selected. The u.fl port was said to be ok. If you don't mind, why would you use amps with a 400mW radio card? I'd expect you to be overloading the input on the amps and making all kinds of noise Tom DeReggi wrote: What exactly is the old mmcx problem? I had some original batch Range2's (or is that range 3s, the 2,4Ghz G ones) that were giving me sparatic performance at a site, used with RfLink Amps, and the mmcx port. Tom DeReggi RapidDSL & Wireless, Inc IntAirNet- Fixed Wireless Broadband - Original Message - From: Blair Davis To: [EMAIL PROTECTED] Cc: 'WISPA General List' Sent: Thursday, February 09, 2006 3:04 PM Subject: Re: [WISPA] MikroTik 5.8GHz Radio cards and settings. I was/am aware of the mmcx issue and all tests were done with the same u.fl pigtails on each end. When the radio cards were changed, the same u.fl pigtails were used. Only the radio cards were changed. They were the older SR5 cards with the mmcx problem. (proven by testing!!) The mmcx port was down 6db from the u.fl port. [EMAIL PROTECTED] wrote: What pigtails and connectors? Mmcx on the SR5 or u.fl? are these new SR5's or older sr'5s? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Blair Davis Sent: Thursday, February 09, 2006 2:08 PM To: WISPA General List Subject: [WISPA] MikroTik 5.8GHz Radio cards and settings. Hey all: I'm getting some odd results here with a PtP 5.8GHz link using MikroTik that I setup to test with. Let me describe the setup... The link is 7.9 miles with clear LoS and clear Frenel zone. Each end has a 27db grid with a 3ft LMR-400 jumper to the MikroTik radio. Using the link calculator at http://www.zytrax.com/tech/wireless/calc.htm I get a predicted rx of -60.8db at each end with CM9 radio cards (17db output). Using the SR5 cards, (400mW), I get a predicted rx of -51.8 On to the real world results (all reading taken from the MikroTik's winbox. I am using version 2.9.11 on RouterBoard 230's) With the CM9 cards, I get a measured rx of -62db, well within the margin of error. An interesting note here is that I must set the CM9's output power in the MikroTik at 30db to get these results.. I know that the MikroTik must be doing something odd with this setting, as the CM9 can not put out 30db. Reducing the setting drops the rx strenth by a like amount. This link is stable and will pass 30Mb/sec in UDP and 22Mb/sec in TCP mode With the SR5 cards, I get a measured rx of -66db, well outside the margin of error and 15db below the expected rx strength! An interesting note here is that I must set the SR5's output power in the MikroTik at 30db to get these results. I know that the MikroTik must be doing something odd with this setting, as the SR5 should not put out 30db. Reducing the setting drops the rx strength by a like amount. This link is stable and will pass 24Mb/sec in UDP and 16Mb/sec in TCP mode. Nothing else is changed when I swap the SR5's for the CM9's or back again. I use the same antennas, cables, boards and pigtails. The antennas and cables are not moved between tests. (except for moving the pigtail from one card to the other). Can anyone tell me what I am doing wrong here? Or do I just have some bad SR5 cards? Or is the tx power setting in the MikroTik flakey? Or is the tx power setting relative db not absolute db? BTW, I will be changing one end to a sector and wish to use the SR5 cards then. Otherwise I'd be happy with the -62 on the CM9's Thanks in advance. -- Blair Davis AOL IM Screen Name -- Theory240 West Michigan Wireless ISP 269-686-8648 A division of: Camp Communication Services, INC -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.15.3/254 - Release Date: 02/08/2006 -- Blair Davis AOL IM Screen Name -- Theory240 West Michigan Wireless ISP 269-686-8648 A division of: Camp Communication Services, INC -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.15.5/256 - Release Date: 2/10/2006 -- Blair Davis AOL IM Screen Name -- Theory240 West Michigan Wireless ISP 269-686-8648 A division of: Camp Communication Services, INC -- WISPA Wireless List: wireles
Re: [WISPA] MikroTik 5.8GHz Radio cards and settings.
What exactly is the old mmcx problem? I had some original batch Range2's (or is that range 3s, the 2,4Ghz G ones) that were giving me sparatic performance at a site, used with RfLink Amps, and the mmcx port. Tom DeReggiRapidDSL & Wireless, IncIntAirNet- Fixed Wireless Broadband - Original Message - From: Blair Davis To: [EMAIL PROTECTED] Cc: 'WISPA General List' Sent: Thursday, February 09, 2006 3:04 PM Subject: Re: [WISPA] MikroTik 5.8GHz Radio cards and settings. I was/am aware of the mmcx issue and all tests were done with the same u.fl pigtails on each end. When the radio cards were changed, the same u.fl pigtails were used. Only the radio cards were changed.They were the older SR5 cards with the mmcx problem. (proven by testing!!) The mmcx port was down 6db from the u.fl port.[EMAIL PROTECTED] wrote: What pigtails and connectors? Mmcx on the SR5 or u.fl? are these new SR5's or older sr'5s? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Blair Davis Sent: Thursday, February 09, 2006 2:08 PM To: WISPA General List Subject: [WISPA] MikroTik 5.8GHz Radio cards and settings. Hey all: I'm getting some odd results here with a PtP 5.8GHz link using MikroTik that I setup to test with. Let me describe the setup... The link is 7.9 miles with clear LoS and clear Frenel zone. Each end has a 27db grid with a 3ft LMR-400 jumper to the MikroTik radio. Using the link calculator at http://www.zytrax.com/tech/wireless/calc.htm I get a predicted rx of -60.8db at each end with CM9 radio cards (17db output). Using the SR5 cards, (400mW), I get a predicted rx of -51.8 On to the real world results (all reading taken from the MikroTik's winbox. I am using version 2.9.11 on RouterBoard 230's) With the CM9 cards, I get a measured rx of -62db, well within the margin of error. An interesting note here is that I must set the CM9's output power in the MikroTik at 30db to get these results.. I know that the MikroTik must be doing something odd with this setting, as the CM9 can not put out 30db. Reducing the setting drops the rx strenth by a like amount. This link is stable and will pass 30Mb/sec in UDP and 22Mb/sec in TCP mode With the SR5 cards, I get a measured rx of -66db, well outside the margin of error and 15db below the expected rx strength! An interesting note here is that I must set the SR5's output power in the MikroTik at 30db to get these results. I know that the MikroTik must be doing something odd with this setting, as the SR5 should not put out 30db. Reducing the setting drops the rx strength by a like amount. This link is stable and will pass 24Mb/sec in UDP and 16Mb/sec in TCP mode. Nothing else is changed when I swap the SR5's for the CM9's or back again. I use the same antennas, cables, boards and pigtails. The antennas and cables are not moved between tests. (except for moving the pigtail from one card to the other). Can anyone tell me what I am doing wrong here? Or do I just have some bad SR5 cards? Or is the tx power setting in the MikroTik flakey? Or is the tx power setting relative db not absolute db? BTW, I will be changing one end to a sector and wish to use the SR5 cards then. Otherwise I'd be happy with the -62 on the CM9's Thanks in advance. -- Blair Davis AOL IM Screen Name -- Theory240 West Michigan Wireless ISP 269-686-8648 A division of: Camp Communication Services, INC -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.15.3/254 - Release Date: 02/08/2006 -- Blair Davis AOL IM Screen Name -- Theory240 West Michigan Wireless ISP 269-686-8648 A division of: Camp Communication Services, INC -- WISPA Wireless List: wireless@wispa.orgSubscribe/Unsubscribe:http://lists.wispa.org/mailman/listinfo/wirelessArchives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] MikroTik 5.8GHz Radio cards and settings.
Under advanced status the OLDER (the original sr5 cards) report 15dbm TX Power, while the new cards report 19dbm TX Power Also the CHIP INFO under General – is different between the original sr5 cards and the newer SR5 cards (eeprom info) From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Hendry Sent: Thursday, February 09, 2006 5:31 PM To: 'WISPA General List' Subject: RE: [WISPA] MikroTik 5.8GHz Radio cards and settings. If it help, we got SR5’s as soon as they where available. When I put them in a real world environment on a StarOS/WRAP set-up I saw no increase in signal quality on either end. Put the CM9’s back in and still no change. From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Blair Davis Sent: 09 February 2006 20:10 To: Scott Reed Cc: WISPA General List Subject: Re: [WISPA] MikroTik 5.8GHz Radio cards and settings. That makes sense as an explanation for the CM9 issue. Thanks... Doesn't explain the low output on the SR5 cards Scott Reed wrote: Seems to me there are posts that the MT setting values do not equate to dB. Maybe on P15's MT maillist. Scott Reed Owner NewWays Wireless Networking Network Design, Installation and Administration www.nwwnet.net -- Original Message --- From: Blair Davis <[EMAIL PROTECTED]> To: WISPA General List Sent: Thu, 09 Feb 2006 14:07:46 -0500 Subject: [WISPA] MikroTik 5.8GHz Radio cards and settings. > Hey all: > > I'm getting some odd results here with a PtP 5.8GHz link using MikroTik > that I setup to test with. Let me describe the setup... > > The link is 7.9 miles with clear LoS and clear Frenel zone. Each end > has a 27db grid with a 3ft LMR-400 jumper to the MikroTik radio. > > Using the link calculator at > http://www.zytrax.com/tech/wireless/calc.htm I get a predicted rx of > -60.8db at each end with CM9 radio cards (17db output). Using the SR5 > cards, (400mW), I get a predicted rx of -51.8 > > On to the real world results (all reading taken from the MikroTik's > winbox. I am using version 2.9.11 on RouterBoard 230's) > > With the CM9 cards, I get a measured rx of -62db, well within the margin > of error. An interesting note here is that I must set the CM9's output > power in the MikroTik at 30db to get these results.. I know that the > MikroTik must be doing something odd with this setting, as the CM9 can > not put out 30db. Reducing the setting drops the rx strenth by a like > amount. This link is stable and will pass 30Mb/sec in UDP and 22Mb/sec > in TCP mode > > With the SR5 cards, I get a measured rx of -66db, well outside the > margin of error and 15db below the expected rx strength! An interesting > note here is that I must set the SR5's output power in the MikroTik at > 30db to get these results. I know that the MikroTik must be doing > something odd with this setting, as the SR5 should not put out 30db. > Reducing the setting drops the rx strength by a like amount. This link > is stable and will pass 24Mb/sec in UDP and 16Mb/sec in TCP mode. > > Nothing else is changed when I swap the SR5's for the CM9's or back > again. I use the same antennas, cables, boards and pigtails. The > antennas and cables are not moved between tests. (except for moving the > pigtail from one card to the other). > > Can anyone tell me what I am doing wrong here? Or do I just have some > bad SR5 cards? Or is the tx power setting in the MikroTik flakey? Or > is the tx power setting relative db not absolute db? > > BTW, I will be changing one end to a sector and wish to use the SR5 > cards then. Otherwise I'd be happy with the -62 on the CM9's > > Thanks in advance. > > -- > Blair Davis > > AOL IM Screen Name -- Theory240 > > West Michigan Wireless ISP > 269-686-8648 > > A division of: > Camp Communication Services, INC > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ --- End of Original Message --- No virus found in this incoming message.Checked by AVG Free Edition.Version: 7.1.375 / Virus Database: 267.15.3/254 - Release Date: 2/8/2006 -- Blair Davis AOL IM Screen Name -- Theory240 West Michigan Wireless ISP269-686-8648 A division of:Camp Communication Services, INC -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.15.3/254 - Release Date: 08/02/2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.15.
RE: [WISPA] MikroTik 5.8GHz Radio cards and settings.
when they new improved Sr5 (the ones w/ the updated MMCX’s) I noticed a few changes in the way mikrotik behaves with them, I also seem about a 6dbm improvement in those links as well… Dan From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Hendry Sent: Thursday, February 09, 2006 5:31 PM To: 'WISPA General List' Subject: RE: [WISPA] MikroTik 5.8GHz Radio cards and settings. If it help, we got SR5’s as soon as they where available. When I put them in a real world environment on a StarOS/WRAP set-up I saw no increase in signal quality on either end. Put the CM9’s back in and still no change. From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Blair Davis Sent: 09 February 2006 20:10 To: Scott Reed Cc: WISPA General List Subject: Re: [WISPA] MikroTik 5.8GHz Radio cards and settings. That makes sense as an explanation for the CM9 issue. Thanks... Doesn't explain the low output on the SR5 cards Scott Reed wrote: Seems to me there are posts that the MT setting values do not equate to dB. Maybe on P15's MT maillist. Scott Reed Owner NewWays Wireless Networking Network Design, Installation and Administration www.nwwnet.net -- Original Message --- From: Blair Davis <[EMAIL PROTECTED]> To: WISPA General List Sent: Thu, 09 Feb 2006 14:07:46 -0500 Subject: [WISPA] MikroTik 5.8GHz Radio cards and settings. > Hey all: > > I'm getting some odd results here with a PtP 5.8GHz link using MikroTik > that I setup to test with. Let me describe the setup... > > The link is 7.9 miles with clear LoS and clear Frenel zone. Each end > has a 27db grid with a 3ft LMR-400 jumper to the MikroTik radio. > > Using the link calculator at > http://www.zytrax.com/tech/wireless/calc.htm I get a predicted rx of > -60.8db at each end with CM9 radio cards (17db output). Using the SR5 > cards, (400mW), I get a predicted rx of -51.8 > > On to the real world results (all reading taken from the MikroTik's > winbox. I am using version 2.9.11 on RouterBoard 230's) > > With the CM9 cards, I get a measured rx of -62db, well within the margin > of error. An interesting note here is that I must set the CM9's output > power in the MikroTik at 30db to get these results.. I know that the > MikroTik must be doing something odd with this setting, as the CM9 can > not put out 30db. Reducing the setting drops the rx strenth by a like > amount. This link is stable and will pass 30Mb/sec in UDP and 22Mb/sec > in TCP mode > > With the SR5 cards, I get a measured rx of -66db, well outside the > margin of error and 15db below the expected rx strength! An interesting > note here is that I must set the SR5's output power in the MikroTik at > 30db to get these results. I know that the MikroTik must be doing > something odd with this setting, as the SR5 should not put out 30db. > Reducing the setting drops the rx strength by a like amount. This link > is stable and will pass 24Mb/sec in UDP and 16Mb/sec in TCP mode. > > Nothing else is changed when I swap the SR5's for the CM9's or back > again. I use the same antennas, cables, boards and pigtails. The > antennas and cables are not moved between tests. (except for moving the > pigtail from one card to the other). > > Can anyone tell me what I am doing wrong here? Or do I just have some > bad SR5 cards? Or is the tx power setting in the MikroTik flakey? Or > is the tx power setting relative db not absolute db? > > BTW, I will be changing one end to a sector and wish to use the SR5 > cards then. Otherwise I'd be happy with the -62 on the CM9's > > Thanks in advance. > > -- > Blair Davis > > AOL IM Screen Name -- Theory240 > > West Michigan Wireless ISP > 269-686-8648 > > A division of: > Camp Communication Services, INC > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ --- End of Original Message --- No virus found in this incoming message.Checked by AVG Free Edition.Version: 7.1.375 / Virus Database: 267.15.3/254 - Release Date: 2/8/2006 -- Blair Davis AOL IM Screen Name -- Theory240 West Michigan Wireless ISP269-686-8648 A division of:Camp Communication Services, INC -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.15.3/254 - Release Date: 08/02/2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.15.3/254 - Release Date: 08/02/2006 -- No virus
RE: [WISPA] MikroTik 5.8GHz Radio cards and settings.
If it help, we got SR5’s as soon as they where available. When I put them in a real world environment on a StarOS/WRAP set-up I saw no increase in signal quality on either end. Put the CM9’s back in and still no change. From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Blair Davis Sent: 09 February 2006 20:10 To: Scott Reed Cc: WISPA General List Subject: Re: [WISPA] MikroTik 5.8GHz Radio cards and settings. That makes sense as an explanation for the CM9 issue. Thanks... Doesn't explain the low output on the SR5 cards Scott Reed wrote: Seems to me there are posts that the MT setting values do not equate to dB. Maybe on P15's MT maillist. Scott Reed Owner NewWays Wireless Networking Network Design, Installation and Administration www.nwwnet.net -- Original Message --- From: Blair Davis <[EMAIL PROTECTED]> To: WISPA General List Sent: Thu, 09 Feb 2006 14:07:46 -0500 Subject: [WISPA] MikroTik 5.8GHz Radio cards and settings. > Hey all: > > I'm getting some odd results here with a PtP 5.8GHz link using MikroTik > that I setup to test with. Let me describe the setup... > > The link is 7.9 miles with clear LoS and clear Frenel zone. Each end > has a 27db grid with a 3ft LMR-400 jumper to the MikroTik radio. > > Using the link calculator at > http://www.zytrax.com/tech/wireless/calc.htm I get a predicted rx of > -60.8db at each end with CM9 radio cards (17db output). Using the SR5 > cards, (400mW), I get a predicted rx of -51.8 > > On to the real world results (all reading taken from the MikroTik's > winbox. I am using version 2.9.11 on RouterBoard 230's) > > With the CM9 cards, I get a measured rx of -62db, well within the margin > of error. An interesting note here is that I must set the CM9's output > power in the MikroTik at 30db to get these results.. I know that the > MikroTik must be doing something odd with this setting, as the CM9 can > not put out 30db. Reducing the setting drops the rx strenth by a like > amount. This link is stable and will pass 30Mb/sec in UDP and 22Mb/sec > in TCP mode > > With the SR5 cards, I get a measured rx of -66db, well outside the > margin of error and 15db below the expected rx strength! An interesting > note here is that I must set the SR5's output power in the MikroTik at > 30db to get these results. I know that the MikroTik must be doing > something odd with this setting, as the SR5 should not put out 30db. > Reducing the setting drops the rx strength by a like amount. This link > is stable and will pass 24Mb/sec in UDP and 16Mb/sec in TCP mode. > > Nothing else is changed when I swap the SR5's for the CM9's or back > again. I use the same antennas, cables, boards and pigtails. The > antennas and cables are not moved between tests. (except for moving the > pigtail from one card to the other). > > Can anyone tell me what I am doing wrong here? Or do I just have some > bad SR5 cards? Or is the tx power setting in the MikroTik flakey? Or > is the tx power setting relative db not absolute db? > > BTW, I will be changing one end to a sector and wish to use the SR5 > cards then. Otherwise I'd be happy with the -62 on the CM9's > > Thanks in advance. > > -- > Blair Davis > > AOL IM Screen Name -- Theory240 > > West Michigan Wireless ISP > 269-686-8648 > > A division of: > Camp Communication Services, INC > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ --- End of Original Message --- No virus found in this incoming message.Checked by AVG Free Edition.Version: 7.1.375 / Virus Database: 267.15.3/254 - Release Date: 2/8/2006 -- Blair Davis AOL IM Screen Name -- Theory240 West Michigan Wireless ISP269-686-8648 A division of:Camp Communication Services, INC -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.15.3/254 - Release Date: 08/02/2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.15.3/254 - Release Date: 08/02/2006 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] MikroTik 5.8GHz Radio cards and settings.
That makes sense as an explanation for the CM9 issue. Thanks... Doesn't explain the low output on the SR5 cards Scott Reed wrote: Seems to me there are posts that the MT setting values do not equate to dB. Maybe on P15's MT maillist. Scott Reed Owner NewWays Wireless Networking Network Design, Installation and Administration www.nwwnet.net -- Original Message --- From: Blair Davis <[EMAIL PROTECTED]> To: WISPA General List Sent: Thu, 09 Feb 2006 14:07:46 -0500 Subject: [WISPA] MikroTik 5.8GHz Radio cards and settings. > Hey all: > > I'm getting some odd results here with a PtP 5.8GHz link using MikroTik > that I setup to test with. Let me describe the setup... > > The link is 7.9 miles with clear LoS and clear Frenel zone. Each end > has a 27db grid with a 3ft LMR-400 jumper to the MikroTik radio. > > Using the link calculator at > http://www.zytrax.com/tech/wireless/calc.htm I get a predicted rx of > -60.8db at each end with CM9 radio cards (17db output). Using the SR5 > cards, (400mW), I get a predicted rx of -51.8 > > On to the real world results (all reading taken from the MikroTik's > winbox. I am using version 2.9.11 on RouterBoard 230's) > > With the CM9 cards, I get a measured rx of -62db, well within the margin > of error. An interesting note here is that I must set the CM9's output > power in the MikroTik at 30db to get these results.. I know that the > MikroTik must be doing something odd with this setting, as the CM9 can > not put out 30db. Reducing the setting drops the rx strenth by a like > amount. This link is stable and will pass 30Mb/sec in UDP and 22Mb/sec > in TCP mode > > With the SR5 cards, I get a measured rx of -66db, well outside the > margin of error and 15db below the expected rx strength! An interesting > note here is that I must set the SR5's output power in the MikroTik at > 30db to get these results. I know that the MikroTik must be doing > something odd with this setting, as the SR5 should not put out 30db. > Reducing the setting drops the rx strength by a like amount. This link > is stable and will pass 24Mb/sec in UDP and 16Mb/sec in TCP mode. > > Nothing else is changed when I swap the SR5's for the CM9's or back > again. I use the same antennas, cables, boards and pigtails. The > antennas and cables are not moved between tests. (except for moving the > pigtail from one card to the other). > > Can anyone tell me what I am doing wrong here? Or do I just have some > bad SR5 cards? Or is the tx power setting in the MikroTik flakey? Or > is the tx power setting relative db not absolute db? > > BTW, I will be changing one end to a sector and wish to use the SR5 > cards then. Otherwise I'd be happy with the -62 on the CM9's > > Thanks in advance. > > -- > Blair Davis > > AOL IM Screen Name -- Theory240 > > West Michigan Wireless ISP > 269-686-8648 > > A division of: > Camp Communication Services, INC > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ --- End of Original Message --- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.15.3/254 - Release Date: 2/8/2006 -- Blair Davis AOL IM Screen Name -- Theory240 West Michigan Wireless ISP 269-686-8648 A division of: Camp Communication Services, INC -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] MikroTik 5.8GHz Radio cards and settings.
Seems to me there are posts that the MT setting values do not equate to dB. Maybe on P15's MT maillist. Scott Reed Owner NewWays Wireless Networking Network Design, Installation and Administration www.nwwnet.net -- Original Message --- From: Blair Davis <[EMAIL PROTECTED]> To: WISPA General List Sent: Thu, 09 Feb 2006 14:07:46 -0500 Subject: [WISPA] MikroTik 5.8GHz Radio cards and settings. > Hey all: > > I'm getting some odd results here with a PtP 5.8GHz link using MikroTik > that I setup to test with. Let me describe the setup... > > The link is 7.9 miles with clear LoS and clear Frenel zone. Each end > has a 27db grid with a 3ft LMR-400 jumper to the MikroTik radio. > > Using the link calculator at > http://www.zytrax.com/tech/wireless/calc.htm I get a predicted rx of > -60.8db at each end with CM9 radio cards (17db output). Using the SR5 > cards, (400mW), I get a predicted rx of -51.8 > > On to the real world results (all reading taken from the MikroTik's > winbox. I am using version 2.9.11 on RouterBoard 230's) > > With the CM9 cards, I get a measured rx of -62db, well within the margin > of error. An interesting note here is that I must set the CM9's output > power in the MikroTik at 30db to get these results.. I know that the > MikroTik must be doing something odd with this setting, as the CM9 can > not put out 30db. Reducing the setting drops the rx strenth by a like > amount. This link is stable and will pass 30Mb/sec in UDP and 22Mb/sec > in TCP mode > > With the SR5 cards, I get a measured rx of -66db, well outside the > margin of error and 15db below the expected rx strength! An interesting > note here is that I must set the SR5's output power in the MikroTik at > 30db to get these results. I know that the MikroTik must be doing > something odd with this setting, as the SR5 should not put out 30db. > Reducing the setting drops the rx strength by a like amount. This link > is stable and will pass 24Mb/sec in UDP and 16Mb/sec in TCP mode. > > Nothing else is changed when I swap the SR5's for the CM9's or back > again. I use the same antennas, cables, boards and pigtails. The > antennas and cables are not moved between tests. (except for moving the > pigtail from one card to the other). > > Can anyone tell me what I am doing wrong here? Or do I just have some > bad SR5 cards? Or is the tx power setting in the MikroTik flakey? Or > is the tx power setting relative db not absolute db? > > BTW, I will be changing one end to a sector and wish to use the SR5 > cards then. Otherwise I'd be happy with the -62 on the CM9's > > Thanks in advance. > > -- > Blair Davis > > AOL IM Screen Name -- Theory240 > > West Michigan Wireless ISP > 269-686-8648 > > A division of: > Camp Communication Services, INC > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ --- End of Original Message --- -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] MikroTik 5.8GHz Radio cards and settings.
Thank you. Performance is not the issue here. The issue is predicted signal strength vs measured signal strength. The link works and works well. Thruput and latency are well within expected ranges. I am just getting numbers that don't make sense. Like the high power SR5 cards having a lower output that the low power CM9 cards. Before I proceed with my planned deployment, I want to understand my test readings. Julius Igugu wrote: Upgrade to 2.9.12. It has better wireless performance. Chech the mikrotik forums. - Original Message - From: "Blair Davis" <[EMAIL PROTECTED]> To: "WISPA General List" Sent: Thursday, February 09, 2006 8:07 PM Subject: [WISPA] MikroTik 5.8GHz Radio cards and settings. Hey all: I'm getting some odd results here with a PtP 5.8GHz link using MikroTik that I setup to test with. Let me describe the setup... The link is 7.9 miles with clear LoS and clear Frenel zone. Each end has a 27db grid with a 3ft LMR-400 jumper to the MikroTik radio. Using the link calculator at http://www.zytrax.com/tech/wireless/calc.htm I get a predicted rx of -60.8db at each end with CM9 radio cards (17db output). Using the SR5 cards, (400mW), I get a predicted rx of -51.8 On to the real world results (all reading taken from the MikroTik's winbox. I am using version 2.9.11 on RouterBoard 230's) With the CM9 cards, I get a measured rx of -62db, well within the margin of error. An interesting note here is that I must set the CM9's output power in the MikroTik at 30db to get these results.. I know that the MikroTik must be doing something odd with this setting, as the CM9 can not put out 30db. Reducing the setting drops the rx strenth by a like amount. This link is stable and will pass 30Mb/sec in UDP and 22Mb/sec in TCP mode With the SR5 cards, I get a measured rx of -66db, well outside the margin of error and 15db below the expected rx strength! An interesting note here is that I must set the SR5's output power in the MikroTik at 30db to get these results. I know that the MikroTik must be doing something odd with this setting, as the SR5 should not put out 30db. Reducing the setting drops the rx strength by a like amount. This link is stable and will pass 24Mb/sec in UDP and 16Mb/sec in TCP mode. Nothing else is changed when I swap the SR5's for the CM9's or back again. I use the same antennas, cables, boards and pigtails. The antennas and cables are not moved between tests. (except for moving the pigtail from one card to the other). Can anyone tell me what I am doing wrong here? Or do I just have some bad SR5 cards? Or is the tx power setting in the MikroTik flakey? Or is the tx power setting relative db not absolute db? BTW, I will be changing one end to a sector and wish to use the SR5 cards then. Otherwise I'd be happy with the -62 on the CM9's Thanks in advance. -- Blair Davis AOL IM Screen Name -- Theory240 West Michigan Wireless ISP 269-686-8648 A division of: Camp Communication Services, INC -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- Blair Davis AOL IM Screen Name -- Theory240 West Michigan Wireless ISP 269-686-8648 A division of: Camp Communication Services, INC -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] MikroTik 5.8GHz Radio cards and settings.
I was/am aware of the mmcx issue and all tests were done with the same u.fl pigtails on each end. When the radio cards were changed, the same u.fl pigtails were used. Only the radio cards were changed. They were the older SR5 cards with the mmcx problem. (proven by testing!!) The mmcx port was down 6db from the u.fl port. [EMAIL PROTECTED] wrote: What pigtails and connectors? Mmcx on the SR5 or u.fl? are these new SR5's or older sr'5s? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Blair Davis Sent: Thursday, February 09, 2006 2:08 PM To: WISPA General List Subject: [WISPA] MikroTik 5.8GHz Radio cards and settings. Hey all: I'm getting some odd results here with a PtP 5.8GHz link using MikroTik that I setup to test with. Let me describe the setup... The link is 7.9 miles with clear LoS and clear Frenel zone. Each end has a 27db grid with a 3ft LMR-400 jumper to the MikroTik radio. Using the link calculator at http://www.zytrax.com/tech/wireless/calc.htm I get a predicted rx of -60.8db at each end with CM9 radio cards (17db output). Using the SR5 cards, (400mW), I get a predicted rx of -51.8 On to the real world results (all reading taken from the MikroTik's winbox. I am using version 2.9.11 on RouterBoard 230's) With the CM9 cards, I get a measured rx of -62db, well within the margin of error. An interesting note here is that I must set the CM9's output power in the MikroTik at 30db to get these results.. I know that the MikroTik must be doing something odd with this setting, as the CM9 can not put out 30db. Reducing the setting drops the rx strenth by a like amount. This link is stable and will pass 30Mb/sec in UDP and 22Mb/sec in TCP mode With the SR5 cards, I get a measured rx of -66db, well outside the margin of error and 15db below the expected rx strength! An interesting note here is that I must set the SR5's output power in the MikroTik at 30db to get these results. I know that the MikroTik must be doing something odd with this setting, as the SR5 should not put out 30db. Reducing the setting drops the rx strength by a like amount. This link is stable and will pass 24Mb/sec in UDP and 16Mb/sec in TCP mode. Nothing else is changed when I swap the SR5's for the CM9's or back again. I use the same antennas, cables, boards and pigtails. The antennas and cables are not moved between tests. (except for moving the pigtail from one card to the other). Can anyone tell me what I am doing wrong here? Or do I just have some bad SR5 cards? Or is the tx power setting in the MikroTik flakey? Or is the tx power setting relative db not absolute db? BTW, I will be changing one end to a sector and wish to use the SR5 cards then. Otherwise I'd be happy with the -62 on the CM9's Thanks in advance. -- Blair Davis AOL IM Screen Name -- Theory240 West Michigan Wireless ISP 269-686-8648 A division of: Camp Communication Services, INC -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.15.3/254 - Release Date: 02/08/2006 -- Blair Davis AOL IM Screen Name -- Theory240 West Michigan Wireless ISP 269-686-8648 A division of: Camp Communication Services, INC -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] MikroTik 5.8GHz Radio cards and settings.
Upgrade to 2.9.12. It has better wireless performance. Chech the mikrotik forums. - Original Message - From: "Blair Davis" <[EMAIL PROTECTED]> To: "WISPA General List" Sent: Thursday, February 09, 2006 8:07 PM Subject: [WISPA] MikroTik 5.8GHz Radio cards and settings. Hey all: I'm getting some odd results here with a PtP 5.8GHz link using MikroTik that I setup to test with. Let me describe the setup... The link is 7.9 miles with clear LoS and clear Frenel zone. Each end has a 27db grid with a 3ft LMR-400 jumper to the MikroTik radio. Using the link calculator at http://www.zytrax.com/tech/wireless/calc.htm I get a predicted rx of -60.8db at each end with CM9 radio cards (17db output). Using the SR5 cards, (400mW), I get a predicted rx of -51.8 On to the real world results (all reading taken from the MikroTik's winbox. I am using version 2.9.11 on RouterBoard 230's) With the CM9 cards, I get a measured rx of -62db, well within the margin of error. An interesting note here is that I must set the CM9's output power in the MikroTik at 30db to get these results.. I know that the MikroTik must be doing something odd with this setting, as the CM9 can not put out 30db. Reducing the setting drops the rx strenth by a like amount. This link is stable and will pass 30Mb/sec in UDP and 22Mb/sec in TCP mode With the SR5 cards, I get a measured rx of -66db, well outside the margin of error and 15db below the expected rx strength! An interesting note here is that I must set the SR5's output power in the MikroTik at 30db to get these results. I know that the MikroTik must be doing something odd with this setting, as the SR5 should not put out 30db. Reducing the setting drops the rx strength by a like amount. This link is stable and will pass 24Mb/sec in UDP and 16Mb/sec in TCP mode. Nothing else is changed when I swap the SR5's for the CM9's or back again. I use the same antennas, cables, boards and pigtails. The antennas and cables are not moved between tests. (except for moving the pigtail from one card to the other). Can anyone tell me what I am doing wrong here? Or do I just have some bad SR5 cards? Or is the tx power setting in the MikroTik flakey? Or is the tx power setting relative db not absolute db? BTW, I will be changing one end to a sector and wish to use the SR5 cards then. Otherwise I'd be happy with the -62 on the CM9's Thanks in advance. -- Blair Davis AOL IM Screen Name -- Theory240 West Michigan Wireless ISP 269-686-8648 A division of: Camp Communication Services, INC -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] MikroTik 5.8GHz Radio cards and settings.
What pigtails and connectors? Mmcx on the SR5 or u.fl? are these new SR5's or older sr'5s? > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf > Of Blair Davis > Sent: Thursday, February 09, 2006 2:08 PM > To: WISPA General List > Subject: [WISPA] MikroTik 5.8GHz Radio cards and settings. > > Hey all: > > I'm getting some odd results here with a PtP 5.8GHz link using MikroTik > that I setup to test with. Let me describe the setup... > > The link is 7.9 miles with clear LoS and clear Frenel zone. Each end > has a 27db grid with a 3ft LMR-400 jumper to the MikroTik radio. > > Using the link calculator at > http://www.zytrax.com/tech/wireless/calc.htm I get a predicted rx of > -60.8db at each end with CM9 radio cards (17db output). Using the SR5 > cards, (400mW), I get a predicted rx of -51.8 > > On to the real world results (all reading taken from the MikroTik's > winbox. I am using version 2.9.11 on RouterBoard 230's) > > With the CM9 cards, I get a measured rx of -62db, well within the margin > of error. An interesting note here is that I must set the CM9's output > power in the MikroTik at 30db to get these results.. I know that the > MikroTik must be doing something odd with this setting, as the CM9 can > not put out 30db. Reducing the setting drops the rx strenth by a like > amount. This link is stable and will pass 30Mb/sec in UDP and 22Mb/sec > in TCP mode > > With the SR5 cards, I get a measured rx of -66db, well outside the > margin of error and 15db below the expected rx strength! An interesting > note here is that I must set the SR5's output power in the MikroTik at > 30db to get these results. I know that the MikroTik must be doing > something odd with this setting, as the SR5 should not put out 30db. > Reducing the setting drops the rx strength by a like amount. This link > is stable and will pass 24Mb/sec in UDP and 16Mb/sec in TCP mode. > > Nothing else is changed when I swap the SR5's for the CM9's or back > again. I use the same antennas, cables, boards and pigtails. The > antennas and cables are not moved between tests. (except for moving the > pigtail from one card to the other). > > Can anyone tell me what I am doing wrong here? Or do I just have some > bad SR5 cards? Or is the tx power setting in the MikroTik flakey? Or > is the tx power setting relative db not absolute db? > > BTW, I will be changing one end to a sector and wish to use the SR5 > cards then. Otherwise I'd be happy with the -62 on the CM9's > > Thanks in advance. > > -- > Blair Davis > > AOL IM Screen Name -- Theory240 > > West Michigan Wireless ISP > 269-686-8648 > > A division of: > Camp Communication Services, INC > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.375 / Virus Database: 267.15.3/254 - Release Date: 02/08/2006 > -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.15.3/254 - Release Date: 02/08/2006 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] MikroTik 5.8GHz Radio cards and settings.
Hey all: I'm getting some odd results here with a PtP 5.8GHz link using MikroTik that I setup to test with. Let me describe the setup... The link is 7.9 miles with clear LoS and clear Frenel zone. Each end has a 27db grid with a 3ft LMR-400 jumper to the MikroTik radio. Using the link calculator at http://www.zytrax.com/tech/wireless/calc.htm I get a predicted rx of -60.8db at each end with CM9 radio cards (17db output). Using the SR5 cards, (400mW), I get a predicted rx of -51.8 On to the real world results (all reading taken from the MikroTik's winbox. I am using version 2.9.11 on RouterBoard 230's) With the CM9 cards, I get a measured rx of -62db, well within the margin of error. An interesting note here is that I must set the CM9's output power in the MikroTik at 30db to get these results.. I know that the MikroTik must be doing something odd with this setting, as the CM9 can not put out 30db. Reducing the setting drops the rx strenth by a like amount. This link is stable and will pass 30Mb/sec in UDP and 22Mb/sec in TCP mode With the SR5 cards, I get a measured rx of -66db, well outside the margin of error and 15db below the expected rx strength! An interesting note here is that I must set the SR5's output power in the MikroTik at 30db to get these results. I know that the MikroTik must be doing something odd with this setting, as the SR5 should not put out 30db. Reducing the setting drops the rx strength by a like amount. This link is stable and will pass 24Mb/sec in UDP and 16Mb/sec in TCP mode. Nothing else is changed when I swap the SR5's for the CM9's or back again. I use the same antennas, cables, boards and pigtails. The antennas and cables are not moved between tests. (except for moving the pigtail from one card to the other). Can anyone tell me what I am doing wrong here? Or do I just have some bad SR5 cards? Or is the tx power setting in the MikroTik flakey? Or is the tx power setting relative db not absolute db? BTW, I will be changing one end to a sector and wish to use the SR5 cards then. Otherwise I'd be happy with the -62 on the CM9's Thanks in advance. -- Blair Davis AOL IM Screen Name -- Theory240 West Michigan Wireless ISP 269-686-8648 A division of: Camp Communication Services, INC -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
