Re: [WISPA] Strange problem with Canopy 9000APC
I use them with no insertion loss at all. There is a version of it with a male end for antenna however I don't see it on Tessco's site. The polyphaser model # is DSXL-MA Kurt Fankhauser Wavelinc Communications P.O. Box 126 Bucyrus, OH 44820 <http://www.wavelinc.com> http://www.wavelinc.com tel. 419-562-6405 fax. 419-617-0110 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of David Hannum Sent: Thursday, June 13, 2013 10:40 AM To: WISPA General List Subject: Re: [WISPA] Strange problem with Canopy 9000APC Never tried that before. We always use LPU's on the CAT-5 but I've never put one on the antenna lead. What kind of line loss does it cause? I don't see that in the Tech Specs. Also, does it come with a male antenna connector side? Dave Hannum On Thu, Jun 13, 2013 at 10:35 AM, Kurt Fankhauser wrote: Can you possibly put a polyphaser on the 9000APC? I use these: <http://www.tessco.com/products/displayProductInfo.do?sku=531462&eventPage=1 > http://www.tessco.com/products/displayProductInfo.do?sku=531462&eventPage=1 Kurt Fankhauser Wavelinc Communications P.O. Box 126 Bucyrus, OH 44820 <http://www.wavelinc.com> http://www.wavelinc.com tel. 419-562-6405 fax. 419-617-0110 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of David Hannum Sent: Thursday, June 13, 2013 10:11 AM To: WISPA General List Subject: Re: [WISPA] Strange problem with Canopy 9000APC The first radio went bad on the first antenna. The second and third radios have gone bad on the second antenna. We'll probably swap the antenna again this afternoon on this one. Dave Hannum New Era Broadband On Thu, Jun 13, 2013 at 10:05 AM, Jason Bailey wrote: That's why I said antenna. It happened frequently after changing the antenna. --- On Thu, 6/13/13, David Hannum wrote: From: David Hannum Subject: Re: [WISPA] Strange problem with Canopy 9000APC To: "WISPA General List" Date: Thursday, June 13, 2013, 10:01 AM Moisture is not an issue. Good drip loops on both the antenna cable and CAT-5 Cables. We actually sealed the entry of the radio with mastic to be sure. The first radio lasted about 10 months. When it went, we first swapped antennas, thinking maybe a lightning strike damaged it (we've had the same effect on signal from bad antenna). That did nothing to help, so we next swapped the radio. Signal back. That lasted about four weeks. Swapped radio again, and signal back. Lasted about 12 hours this time. No visible damage to any of the radios. No moisture found inside. We don't have capability to test in-house. Will send to SWG or Wireless Units to have them take a look. Dave Hannum New Era Broadband On Thu, Jun 13, 2013 at 9:46 AM, Fred Goldstein http://mc/compose?to=fgoldst...@ionary.com> > wrote: On 6/13/2013 7:43 AM, David Hannum wrote: > We're having an issue with a 9000APC that is very strange. Here is the > situation. We have a remote water tank (stand pipe 75' high) that has a > few homes around it. So, we have a 9000APC and a connectorized 2450AP > on the tower, both on Omni's. The antennas are on a stand almost > exactly 4' apart. There are six subs on the 900MHz radio. About a > month ago, I had an issue where (after about 9 months) the signal to all > of the customers just faded out, to the point that only two subs were > still good. I swapped the antenna and that did not help. I swapped the > radio, and that fixed the problem. Trouble is, it only lasted about > three weeks, and the same thing happened again. I swapped the radio > again yesterday, and today, I'm back in the same boat. The radio in the > AP keeps going out. I had the climbers check the grounding, and we > actually ran a dedicated ground yesterday off the water tank. My knee > jerk feeling today is that maybe the radios are too close together, and > the 2450 is burning up the 900. Could this be the case? Any ideas? > Here is an example of what happens. Customers that run signals -47 to > -57 become -70 to -75 and those who's signals were -70 and up fall clear > off. Swap the radio, and everything goes back to normal. This is now > three radios that have gone, each lasting a much shorter time than the > previous. (this one did not make it 24 hours). > I can't completely rule out lightning - the tower is in a very wooded > area. But usually you burn up the NIC in that case - not weaken the radio. > Thoughts? Interesting mystery! Clearly you don't want to blow more radios this way. Any more clues about what may have happened right before the failures? I'm wondering about weather events. Did it fail after a rain storm? Water coming in to the radio or corroding the antenna connectors might res
Re: [WISPA] Strange problem with Canopy 9000APC
They key to spectrum management is to use as little power as possible to achieve the desired result. Anything beyond this is just pollution. For Canopy you want ~16dB above the noise floor (10dB to get 2X plus 6dB margin). So for example if your noise floor is -78 (in the middle of the desert?) your target is -62. Getting as many of the SM's at this level at all co-located AP's should be your goal. SM's that are weaker will need to have bigger antennas installed or be elevated for better LOS. Some links are just too far and they have to live with what they get or find another provider. If your noise floor creeps above -70, you are going to start seeing issues because it is difficult to get links at -54 at any measurable distance. Those links that fall short will start to modulate from 2X to 1X between 16dB and 10dB margin. From 9dB to about 6dB they will stay at 1X. At 6dB and below they will start re-registering. If you only have one 900AP, running wide open isn't going to hurt you (but may be a problem for another 900MHz user). If you have additional AP's on the same tower (or nearby) you will start interfering with yourself and/or others by hitting the tower with too much signal which will affect your weaker links. Hope that helps ~Jerry From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Erik Anderson Sent: Thursday, June 13, 2013 1:08 PM To: WISPA General List Subject: Re: [WISPA] Strange problem with Canopy 9000APC On 6/13/2013 1:38 PM, David Hannum wrote: He strongly urged me not to even worry about balancing. He says run everything wide open all the time - all SM's and all AP's. Now, I'm not disputing you - I don't know enough too. I'm just relaying what the Cambium engineer told me. No worries (about difference in theology). I am not trying to change anyone's mind, argue, or cause contention: just trying to help. Sorry if anyone thinks otherwise: that is why I am more of a lurker than poster. ALWAYS keep the AP at full power. Always, always, always. Well, I guess if you are using it for a PTP not PTMP and you are causing interference with other equipment then... anyway, if an AP is used as an AP, ALWAYS. But the SM... no. Through Cambium training, we were told differently: but I was not there for that training. Quite honestly, it makes a lot of sense to turn down a radio if the UPLINK strength at the AP is reading -30 to -55. Think about it for a minute from an RF prespective. Your receiver is receiving multiple transmissions. On some, it must increase the gain to make it "sound right." On others, it must decrease the gain to make it "sound right." These frequencies are preset to communicate (900 mhz band) and fine tuned to pick up the quiet sounds. Will the much stronger RF signal, over time, destroy the transceivers ability to hear the quiet sounds? Yes. That is what RF does, and why the microwave oven is so effective. There is an interesting study out there about the effects of long term RF exposure on the structural integrity of buildings. These units are not powerful and not going to damage buildings, but over time, they will damage sensitive electronics. Immediate problems, no. Long term, yes. Support for every other product on the market tells you to turn down a transmitter if receive is better than -50. A Canopy radio may be better than other radios, but we have repeatedly seen that the receiver desenses over time (way before the documented MTBF rate). For the SM, it does not matter if the receive is hot. It will never need to listen to the quiet sounds. The receiver can desense for that client and you will not have an impact. We test every radio before it is deployed/redeployed. This is due to RF sensitivity, and ones that perform worse are marked for use in locations with a strong signal only. Really, you should turn down the SM if the AP receive is that hot. 9 months is fast for burning out an AP. As I said in the first email, I am very suspicious that your problem is the power supply this time. But, I have seen the receivers on the APs get more and more desensitized (16 months is fastest) to the point the truck was rolling all the time for that AP, and a radio swap instantly fixed the numerous problems we were seeing. ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Strange problem with Canopy 9000APC
On 6/13/2013 1:38 PM, David Hannum wrote: He strongly urged me not to even worry about balancing. He says run everything wide open all the time - all SM's and all AP's. Now, I'm not disputing you - I don't know enough too. I'm just relaying what the Cambium engineer told me. No worries (about difference in theology). I am not trying to change anyone's mind, argue, or cause contention: just trying to help. Sorry if anyone thinks otherwise: that is why I am more of a lurker than poster. ALWAYS keep the AP at full power. Always, always, always. Well, I guess if you are using it for a PTP not PTMP and you are causing interference with other equipment then... anyway, if an AP is used as an AP, ALWAYS. But the SM... no. Through Cambium training, we were told differently: but I was not there for that training. Quite honestly, it makes a lot of sense to turn down a radio if the UPLINK strength at the AP is reading -30 to -55. Think about it for a minute from an RF prespective. Your receiver is receiving multiple transmissions. On some, it must increase the gain to make it "sound right." On others, it must decrease the gain to make it "sound right." These frequencies are preset to communicate (900 mhz band) and fine tuned to pick up the quiet sounds. Will the much stronger RF signal, over time, destroy the transceivers ability to hear the quiet sounds? Yes. That is what RF does, and why the microwave oven is so effective. There is an interesting study out there about the effects of long term RF exposure on the structural integrity of buildings. These units are not powerful and not going to damage buildings, but over time, they will damage sensitive electronics. Immediate problems, no. Long term, yes. Support for every other product on the market tells you to turn down a transmitter if receive is better than -50. A Canopy radio may be better than other radios, but we have repeatedly seen that the receiver desenses over time (way before the documented MTBF rate). For the SM, it does not matter if the receive is hot. It will never need to listen to the quiet sounds. The receiver can desense for that client and you will not have an impact. We test /every /radio before it is deployed/redeployed. This is due to RF sensitivity, and ones that perform worse are marked for use in locations with a strong signal only. Really, you should turn down the SM if the AP receive is that hot. 9 months is fast for burning out an AP. As I said in the first email, I am very suspicious that your problem is the power supply this time. But, I have seen the receivers on the APs get more and more desensitized (16 months is fastest) to the point the truck was rolling all the time for that AP, and a radio swap instantly fixed the numerous problems we were seeing. ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Strange problem with Canopy 9000APC
Erik, Thanks for the input. I'll swap ports and power supplies. That makes sense. As for running too hot, I conversed with Dan Soles, field engineer for Cambium when he visited, about that very thing. He strongly urged me not to even worry about balancing. He says run everything wide open all the time - all SM's and all AP's. Now, I'm not disputing you - I don't know enough too. I'm just relaying what the Cambium engineer told me. Thanks, Dave Hannum On Thu, Jun 13, 2013 at 1:29 PM, Erik Anderson wrote: > I *have *seen similar things on Canopy 900. > > >1. I work with a lot of 900 APs. Test the radios that are down. Leave >them running connected to the tower as an SM from a couple miles for a >couple days. I bet they are just fine. But testing an AP as an SM is not a >100% guaranteed test (had one test fine then burn up after use on the tower >as an AP for 90 minutes). >2. My gut says you are looking in the wrong spot. You need to be >monitoring the amps being drawn by the radio. I think it is your CMM/CTM >(assuming you are using one). Switch it to a different port. If not, swap >the power supply. > 3. Your radio is running too hot. -45 is not a good thing on 900! Set >the AP to bring everyone down to (say) -65. You could be desensing the >receiver. We have people connecting happily in the -80s. > 4. The 2.4 is not the issue. We have some located 0 ft vertically >offset and horizontally within 12" of 900 radios (plural) with them all on >omnis. 4 feet of vertical separation is ample. > > > On 6/13/2013 11:41 AM, David Hannum wrote: > > The S/N's on the radios are not really close. The second two that went > bad came from a different shipment from the first batch. No visible signs > of vandalism. Tower has locked cage around ladder. I can't imagine > vandalism, however, you never rule out anything you can prove is out. > > Dave > > > On Thu, Jun 13, 2013 at 11:25 AM, Coenraad Loubser > wrote: > >> Extreme bad luck - or perhaps not - are all the radios perhaps from a >> faulty batch? Vandalism - Is there any sort of access control or >> surveillance at the site? The first thoughts that spring to mind. >> >> >> >> On Thu, Jun 13, 2013 at 4:40 PM, David Hannum wrote: >> >>> Never tried that before. We always use LPU's on the CAT-5 but I've >>> never put one on the antenna lead. What kind of line loss does it cause? >>> I don't see that in the Tech Specs. Also, does it come with a male antenna >>> connector side? >>> >>> Dave Hannum >>> >>> >>> On Thu, Jun 13, 2013 at 10:35 AM, Kurt Fankhauser wrote: >>> >>>> Can you possibly put a polyphaser on the 9000APC? I use these: >>>> >>>> >>>> http://www.tessco.com/products/displayProductInfo.do?sku=531462&eventPage=1 >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> Kurt Fankhauser >>>> >>>> Wavelinc Communications >>>> >>>> P.O. Box 126 >>>> >>>> Bucyrus, OH 44820 >>>> >>>> http://www.wavelinc.com >>>> >>>> tel. 419-562-6405 >>>> >>>> fax. 419-617-0110 >>>> >>>> *From:* wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] >>>> *On Behalf Of *David Hannum >>>> *Sent:* Thursday, June 13, 2013 10:11 AM >>>> *To:* WISPA General List >>>> *Subject:* Re: [WISPA] Strange problem with Canopy 9000APC >>>> >>>> >>>> >>>> The first radio went bad on the first antenna. The second and third >>>> radios have gone bad on the second antenna. We'll probably swap the >>>> antenna again this afternoon on this one. >>>> >>>> >>>> >>>> Dave Hannum >>>> >>>> New Era Broadband >>>> >>>> >>>> >>>> On Thu, Jun 13, 2013 at 10:05 AM, Jason Bailey >>>> wrote: >>>> >>>> That's why I said antenna. It happened frequently after changing the >>>> antenna. >>>> >>>> --- On *Thu, 6/13/13, David Hannum * wrote: >>>> >>>> >>>> From: David Hannum >>>> >>>> >>>> Subject: Re: [WISPA] Strange problem with Canopy 9000APC >>>> >>>> To: "WISPA General List" >>>> >>>> Date:
Re: [WISPA] Strange problem with Canopy 9000APC
I /have /seen similar things on Canopy 900.
1. I work with a lot of 900 APs. Test the radios that are down. Leave
them running connected to the tower as an SM from a couple miles for
a couple days. I bet they are just fine. But testing an AP as an SM
is not a 100% guaranteed test (had one test fine then burn up after
use on the tower as an AP for 90 minutes).
2. My gut says you are looking in the wrong spot. You need to be
monitoring the amps being drawn by the radio. I think it is your
CMM/CTM (assuming you are using one). Switch it to a different port.
If not, swap the power supply.
3. Your radio is running too hot. -45 is not a good thing on 900! Set
the AP to bring everyone down to (say) -65. You could be desensing
the receiver. We have people connecting happily in the -80s.
4. The 2.4 is not the issue. We have some located 0 ft vertically
offset and horizontally within 12" of 900 radios (plural) with them
all on omnis. 4 feet of vertical separation is ample.
On 6/13/2013 11:41 AM, David Hannum wrote:
The S/N's on the radios are not really close. The second two that
went bad came from a different shipment from the first batch. No
visible signs of vandalism. Tower has locked cage around ladder. I
can't imagine vandalism, however, you never rule out anything you can
prove is out.
Dave
On Thu, Jun 13, 2013 at 11:25 AM, Coenraad Loubser
mailto:coenr...@wish.org.za>> wrote:
Extreme bad luck - or perhaps not - are all the radios perhaps
from a faulty batch? Vandalism - Is there any sort of access
control or surveillance at the site? The first thoughts that
spring to mind.
On Thu, Jun 13, 2013 at 4:40 PM, David Hannum mailto:oujas...@gmail.com>> wrote:
Never tried that before. We always use LPU's on the CAT-5 but
I've never put one on the antenna lead. What kind of line
loss does it cause? I don't see that in the Tech Specs.
Also, does it come with a male antenna connector side?
Dave Hannum
On Thu, Jun 13, 2013 at 10:35 AM, Kurt Fankhauser
mailto:li...@wavelinc.com>> wrote:
Can you possibly put a polyphaser on the 9000APC? I use these:
http://www.tessco.com/products/displayProductInfo.do?sku=531462&eventPage=1
Kurt Fankhauser
Wavelinc Communications
P.O. Box 126
Bucyrus, OH 44820
http://www.wavelinc.com
tel. 419-562-6405
fax. 419-617-0110
*From:*wireless-boun...@wispa.org
<mailto:wireless-boun...@wispa.org>
[mailto:wireless-boun...@wispa.org
<mailto:wireless-boun...@wispa.org>] *On Behalf Of *David
Hannum
*Sent:* Thursday, June 13, 2013 10:11 AM
*To:* WISPA General List
*Subject:* Re: [WISPA] Strange problem with Canopy 9000APC
The first radio went bad on the first antenna. The second
and third radios have gone bad on the second antenna.
We'll probably swap the antenna again this afternoon on
this one.
Dave Hannum
New Era Broadband
On Thu, Jun 13, 2013 at 10:05 AM, Jason Bailey
mailto:j284...@yahoo.com>> wrote:
That's why I said antenna. It happened frequently after
changing the antenna.
--- On *Thu, 6/13/13, David Hannum /mailto:oujas...@gmail.com>>/* wrote:
From: David Hannum mailto:oujas...@gmail.com>>
Subject: Re: [WISPA] Strange problem with Canopy 9000APC
To: "WISPA General List" mailto:wireless@wispa.org>>
Date: Thursday, June 13, 2013, 10:01 AM
Moisture is not an issue. Good drip loops on both the
antenna cable and CAT-5 Cables. We actually sealed the
entry of the radio with mastic to be sure. The first
radio lasted about 10 months. When it went, we first
swapped antennas, thinking maybe a lightning strike
damaged it (we've had the same effect on signal from bad
antenna). That did nothing to help, so we next swapped the
radio. Signal back. That lasted about four weeks. Swapped
radio again, and signal back. Lasted about 12 hours this time.
No visible damage to any of the radios. No moisture found
inside. We don't have capability to test in-house. Will
send to SWG or Wireless Units to have them take a look.
Dave Hannum
New Era Broadband
On Thu, Jun 13, 2013 at 9:46 AM, Fred Goldstein
http://mc/compose?to=fgoldst...@ionary.com>> wrote:
On 6/13/2013 7:43 AM, David Hannum wrote:
> We're having an issu
Re: [WISPA] Strange problem with Canopy 9000APC
The S/N's on the radios are not really close. The second two that went bad came from a different shipment from the first batch. No visible signs of vandalism. Tower has locked cage around ladder. I can't imagine vandalism, however, you never rule out anything you can prove is out. Dave On Thu, Jun 13, 2013 at 11:25 AM, Coenraad Loubser wrote: > Extreme bad luck - or perhaps not - are all the radios perhaps from a > faulty batch? Vandalism - Is there any sort of access control or > surveillance at the site? The first thoughts that spring to mind. > > > > On Thu, Jun 13, 2013 at 4:40 PM, David Hannum wrote: > >> Never tried that before. We always use LPU's on the CAT-5 but I've never >> put one on the antenna lead. What kind of line loss does it cause? I >> don't see that in the Tech Specs. Also, does it come with a male antenna >> connector side? >> >> Dave Hannum >> >> >> On Thu, Jun 13, 2013 at 10:35 AM, Kurt Fankhauser wrote: >> >>> Can you possibly put a polyphaser on the 9000APC? I use these: >>> >>> >>> http://www.tessco.com/products/displayProductInfo.do?sku=531462&eventPage=1 >>> >>> >>> ** ** >>> >>> ** ** >>> >>> ** ** >>> >>> Kurt Fankhauser >>> >>> Wavelinc Communications >>> >>> P.O. Box 126 >>> >>> Bucyrus, OH 44820 >>> >>> http://www.wavelinc.com >>> >>> tel. 419-562-6405 >>> >>> fax. 419-617-0110 >>> >>> *From:* wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] *On >>> Behalf Of *David Hannum >>> *Sent:* Thursday, June 13, 2013 10:11 AM >>> *To:* WISPA General List >>> *Subject:* Re: [WISPA] Strange problem with Canopy 9000APC >>> >>> ** ** >>> >>> The first radio went bad on the first antenna. The second and third >>> radios have gone bad on the second antenna. We'll probably swap the >>> antenna again this afternoon on this one. >>> >>> >>> >>> Dave Hannum >>> >>> New Era Broadband >>> >>> ** ** >>> >>> On Thu, Jun 13, 2013 at 10:05 AM, Jason Bailey >>> wrote: >>> >>> That's why I said antenna. It happened frequently after changing the >>> antenna. >>> >>> --- On *Thu, 6/13/13, David Hannum * wrote: >>> >>> >>> From: David Hannum >>> >>> >>> Subject: Re: [WISPA] Strange problem with Canopy 9000APC >>> >>> To: "WISPA General List" >>> >>> Date: Thursday, June 13, 2013, 10:01 AM >>> >>> ** ** >>> >>> Moisture is not an issue. Good drip loops on both the antenna cable and >>> CAT-5 Cables. We actually sealed the entry of the radio with mastic to be >>> sure. The first radio lasted about 10 months. When it went, we first >>> swapped antennas, thinking maybe a lightning strike damaged it (we've had >>> the same effect on signal from bad antenna). That did nothing to help, so >>> we next swapped the radio. Signal back. That lasted about four weeks. >>> Swapped radio again, and signal back. Lasted about 12 hours this time.* >>> *** >>> >>> >>> >>> No visible damage to any of the radios. No moisture found inside. We >>> don't have capability to test in-house. Will send to SWG or Wireless Units >>> to have them take a look. >>> >>> >>> >>> Dave Hannum >>> >>> New Era Broadband >>> >>> >>> >>> ** ** >>> >>> On Thu, Jun 13, 2013 at 9:46 AM, Fred Goldstein >>> http://mc/compose?to=fgoldst...@ionary.com>> >>> wrote: >>> >>> On 6/13/2013 7:43 AM, David Hannum wrote: >>> > We're having an issue with a 9000APC that is very strange. Here is the >>> > situation. We have a remote water tank (stand pipe 75' high) that has >>> a >>> > few homes around it. So, we have a 9000APC and a connectorized 2450AP >>> > on the tower, both on Omni's. The antennas are on a stand almost >>> > exactly 4' apart. There are six subs on the 900MHz radio. About a >>> > month ago, I had an issue where (after about 9 months) the signal to >>> all >>> >
Re: [WISPA] Strange problem with Canopy 9000APC
Extreme bad luck - or perhaps not - are all the radios perhaps from a faulty batch? Vandalism - Is there any sort of access control or surveillance at the site? The first thoughts that spring to mind. On Thu, Jun 13, 2013 at 4:40 PM, David Hannum wrote: > Never tried that before. We always use LPU's on the CAT-5 but I've never > put one on the antenna lead. What kind of line loss does it cause? I > don't see that in the Tech Specs. Also, does it come with a male antenna > connector side? > > Dave Hannum > > > On Thu, Jun 13, 2013 at 10:35 AM, Kurt Fankhauser wrote: > >> Can you possibly put a polyphaser on the 9000APC? I use these: >> >> >> http://www.tessco.com/products/displayProductInfo.do?sku=531462&eventPage=1 >> >> >> ** ** >> >> ** ** >> >> ** ** >> >> Kurt Fankhauser >> >> Wavelinc Communications >> >> P.O. Box 126 >> >> Bucyrus, OH 44820 >> >> http://www.wavelinc.com >> >> tel. 419-562-6405 >> >> fax. 419-617-0110 >> >> *From:* wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] *On >> Behalf Of *David Hannum >> *Sent:* Thursday, June 13, 2013 10:11 AM >> *To:* WISPA General List >> *Subject:* Re: [WISPA] Strange problem with Canopy 9000APC >> >> ** ** >> >> The first radio went bad on the first antenna. The second and third >> radios have gone bad on the second antenna. We'll probably swap the >> antenna again this afternoon on this one. >> >> >> >> Dave Hannum >> >> New Era Broadband >> >> ** ** >> >> On Thu, Jun 13, 2013 at 10:05 AM, Jason Bailey wrote: >> >> >> That's why I said antenna. It happened frequently after changing the >> antenna. >> >> --- On *Thu, 6/13/13, David Hannum * wrote: >> >> >> From: David Hannum >> >> >> Subject: Re: [WISPA] Strange problem with Canopy 9000APC >> >> To: "WISPA General List" >> >> Date: Thursday, June 13, 2013, 10:01 AM >> >> ** ** >> >> Moisture is not an issue. Good drip loops on both the antenna cable and >> CAT-5 Cables. We actually sealed the entry of the radio with mastic to be >> sure. The first radio lasted about 10 months. When it went, we first >> swapped antennas, thinking maybe a lightning strike damaged it (we've had >> the same effect on signal from bad antenna). That did nothing to help, so >> we next swapped the radio. Signal back. That lasted about four weeks. >> Swapped radio again, and signal back. Lasted about 12 hours this time.** >> ** >> >> >> >> No visible damage to any of the radios. No moisture found inside. We >> don't have capability to test in-house. Will send to SWG or Wireless Units >> to have them take a look. >> >> >> >> Dave Hannum >> >> New Era Broadband >> >> >> >> ** ** >> >> On Thu, Jun 13, 2013 at 9:46 AM, Fred Goldstein >> http://mc/compose?to=fgoldst...@ionary.com>> >> wrote: >> >> On 6/13/2013 7:43 AM, David Hannum wrote: >> > We're having an issue with a 9000APC that is very strange. Here is the >> > situation. We have a remote water tank (stand pipe 75' high) that has a >> > few homes around it. So, we have a 9000APC and a connectorized 2450AP >> > on the tower, both on Omni's. The antennas are on a stand almost >> > exactly 4' apart. There are six subs on the 900MHz radio. About a >> > month ago, I had an issue where (after about 9 months) the signal to all >> > of the customers just faded out, to the point that only two subs were >> > still good. I swapped the antenna and that did not help. I swapped the >> > radio, and that fixed the problem. Trouble is, it only lasted about >> > three weeks, and the same thing happened again. I swapped the radio >> > again yesterday, and today, I'm back in the same boat. The radio in the >> > AP keeps going out. I had the climbers check the grounding, and we >> > actually ran a dedicated ground yesterday off the water tank. My knee >> > jerk feeling today is that maybe the radios are too close together, and >> > the 2450 is burning up the 900. Could this be the case? Any ideas? >> > Here is an example of what happens. Customers that run signals -47 to >> > -57 become -70 to -75 and th
Re: [WISPA] Strange problem with Canopy 9000APC
Never tried that before. We always use LPU's on the CAT-5 but I've never put one on the antenna lead. What kind of line loss does it cause? I don't see that in the Tech Specs. Also, does it come with a male antenna connector side? Dave Hannum On Thu, Jun 13, 2013 at 10:35 AM, Kurt Fankhauser wrote: > Can you possibly put a polyphaser on the 9000APC? I use these: > > http://www.tessco.com/products/displayProductInfo.do?sku=531462&eventPage=1 > > > ** ** > > ** ** > > ** ** > > Kurt Fankhauser > > Wavelinc Communications > > P.O. Box 126 > > Bucyrus, OH 44820 > > http://www.wavelinc.com > > tel. 419-562-6405 > > fax. 419-617-0110 > > *From:* wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] *On > Behalf Of *David Hannum > *Sent:* Thursday, June 13, 2013 10:11 AM > *To:* WISPA General List > *Subject:* Re: [WISPA] Strange problem with Canopy 9000APC > > ** ** > > The first radio went bad on the first antenna. The second and third > radios have gone bad on the second antenna. We'll probably swap the > antenna again this afternoon on this one. > > > > Dave Hannum > > New Era Broadband > > ** ** > > On Thu, Jun 13, 2013 at 10:05 AM, Jason Bailey wrote:* > *** > > That's why I said antenna. It happened frequently after changing the > antenna. > > --- On *Thu, 6/13/13, David Hannum * wrote: > > > From: David Hannum > > > Subject: Re: [WISPA] Strange problem with Canopy 9000APC > > To: "WISPA General List" > > Date: Thursday, June 13, 2013, 10:01 AM > > ** ** > > Moisture is not an issue. Good drip loops on both the antenna cable and > CAT-5 Cables. We actually sealed the entry of the radio with mastic to be > sure. The first radio lasted about 10 months. When it went, we first > swapped antennas, thinking maybe a lightning strike damaged it (we've had > the same effect on signal from bad antenna). That did nothing to help, so > we next swapped the radio. Signal back. That lasted about four weeks. > Swapped radio again, and signal back. Lasted about 12 hours this time.*** > * > > > > No visible damage to any of the radios. No moisture found inside. We > don't have capability to test in-house. Will send to SWG or Wireless Units > to have them take a look. > > > > Dave Hannum > > New Era Broadband > > > > ** ** > > On Thu, Jun 13, 2013 at 9:46 AM, Fred Goldstein > http://mc/compose?to=fgoldst...@ionary.com>> > wrote: > > On 6/13/2013 7:43 AM, David Hannum wrote: > > We're having an issue with a 9000APC that is very strange. Here is the > > situation. We have a remote water tank (stand pipe 75' high) that has a > > few homes around it. So, we have a 9000APC and a connectorized 2450AP > > on the tower, both on Omni's. The antennas are on a stand almost > > exactly 4' apart. There are six subs on the 900MHz radio. About a > > month ago, I had an issue where (after about 9 months) the signal to all > > of the customers just faded out, to the point that only two subs were > > still good. I swapped the antenna and that did not help. I swapped the > > radio, and that fixed the problem. Trouble is, it only lasted about > > three weeks, and the same thing happened again. I swapped the radio > > again yesterday, and today, I'm back in the same boat. The radio in the > > AP keeps going out. I had the climbers check the grounding, and we > > actually ran a dedicated ground yesterday off the water tank. My knee > > jerk feeling today is that maybe the radios are too close together, and > > the 2450 is burning up the 900. Could this be the case? Any ideas? > > Here is an example of what happens. Customers that run signals -47 to > > -57 become -70 to -75 and those who's signals were -70 and up fall clear > > off. Swap the radio, and everything goes back to normal. This is now > > three radios that have gone, each lasting a much shorter time than the > > previous. (this one did not make it 24 hours). > > I can't completely rule out lightning - the tower is in a very wooded > > area. But usually you burn up the NIC in that case - not weaken the > radio. > > Thoughts? > > Interesting mystery! Clearly you don't want to blow more radios this way. > > Any more clues about what may have happened right before the failures? > I'm wondering about weather events. Did it fail after a rain storm? > Water coming in to the rad
Re: [WISPA] Strange problem with Canopy 9000APC
Can you possibly put a polyphaser on the 9000APC? I use these: <http://www.tessco.com/products/displayProductInfo.do?sku=531462&eventPage=1 > http://www.tessco.com/products/displayProductInfo.do?sku=531462&eventPage=1 Kurt Fankhauser Wavelinc Communications P.O. Box 126 Bucyrus, OH 44820 <http://www.wavelinc.com> http://www.wavelinc.com tel. 419-562-6405 fax. 419-617-0110 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of David Hannum Sent: Thursday, June 13, 2013 10:11 AM To: WISPA General List Subject: Re: [WISPA] Strange problem with Canopy 9000APC The first radio went bad on the first antenna. The second and third radios have gone bad on the second antenna. We'll probably swap the antenna again this afternoon on this one. Dave Hannum New Era Broadband On Thu, Jun 13, 2013 at 10:05 AM, Jason Bailey wrote: That's why I said antenna. It happened frequently after changing the antenna. --- On Thu, 6/13/13, David Hannum wrote: From: David Hannum Subject: Re: [WISPA] Strange problem with Canopy 9000APC To: "WISPA General List" Date: Thursday, June 13, 2013, 10:01 AM Moisture is not an issue. Good drip loops on both the antenna cable and CAT-5 Cables. We actually sealed the entry of the radio with mastic to be sure. The first radio lasted about 10 months. When it went, we first swapped antennas, thinking maybe a lightning strike damaged it (we've had the same effect on signal from bad antenna). That did nothing to help, so we next swapped the radio. Signal back. That lasted about four weeks. Swapped radio again, and signal back. Lasted about 12 hours this time. No visible damage to any of the radios. No moisture found inside. We don't have capability to test in-house. Will send to SWG or Wireless Units to have them take a look. Dave Hannum New Era Broadband On Thu, Jun 13, 2013 at 9:46 AM, Fred Goldstein http://mc/compose?to=fgoldst...@ionary.com> > wrote: On 6/13/2013 7:43 AM, David Hannum wrote: > We're having an issue with a 9000APC that is very strange. Here is the > situation. We have a remote water tank (stand pipe 75' high) that has a > few homes around it. So, we have a 9000APC and a connectorized 2450AP > on the tower, both on Omni's. The antennas are on a stand almost > exactly 4' apart. There are six subs on the 900MHz radio. About a > month ago, I had an issue where (after about 9 months) the signal to all > of the customers just faded out, to the point that only two subs were > still good. I swapped the antenna and that did not help. I swapped the > radio, and that fixed the problem. Trouble is, it only lasted about > three weeks, and the same thing happened again. I swapped the radio > again yesterday, and today, I'm back in the same boat. The radio in the > AP keeps going out. I had the climbers check the grounding, and we > actually ran a dedicated ground yesterday off the water tank. My knee > jerk feeling today is that maybe the radios are too close together, and > the 2450 is burning up the 900. Could this be the case? Any ideas? > Here is an example of what happens. Customers that run signals -47 to > -57 become -70 to -75 and those who's signals were -70 and up fall clear > off. Swap the radio, and everything goes back to normal. This is now > three radios that have gone, each lasting a much shorter time than the > previous. (this one did not make it 24 hours). > I can't completely rule out lightning - the tower is in a very wooded > area. But usually you burn up the NIC in that case - not weaken the radio. > Thoughts? Interesting mystery! Clearly you don't want to blow more radios this way. Any more clues about what may have happened right before the failures? I'm wondering about weather events. Did it fail after a rain storm? Water coming in to the radio or corroding the antenna connectors might result. And if the antenna's connector is flaky, re-attaching it to a new radio might be a temporary fix, but reattaching it to an old radio might "fix" it too (temporariy). Have you examined the broken radios in the shop? -- Fred R. Goldstein fred "at" interisle.net Interisle Consulting Group +1 617 795 2701 ___ Wireless mailing list Wireless@wispa.org <http://mc/compose?to=Wireless@wispa.org> http://lists.wispa.org/mailman/listinfo/wireless -Inline Attachment Follows- ___ Wireless mailing list Wireless@wispa.org <http://mc/compose?to=Wireless@wispa.org> http://lists.wispa.org/mailman/listinfo/wireless ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Strange problem with Canopy 9000APC
I wonder if it's electrical. Shortly after our tornado we lost all 4 900 aps at the same time. When I got on site our Coop was across the street working on the lines. The backhaul links were fine. Not saying they caused it necessarily but losing all 4 at the same time on a bright sunny day was curious. The back haul links in other frequencies were fine. David Hannum wrote: > The first radio went bad on the first antenna. The second and third > radios have gone bad on the second antenna. We'll probably swap the > antenna again this afternoon on this one. > Dave Hannum > New Era Broadband > > > On Thu, Jun 13, 2013 at 10:05 AM, Jason Bailey <mailto:j284...@yahoo.com>> wrote: > > That's why I said antenna. It happened frequently after changing > the antenna. > > --- On *Thu, 6/13/13, David Hannum / <mailto:oujas...@gmail.com>>/* wrote: > > > From: David Hannum <mailto:oujas...@gmail.com>> > > Subject: Re: [WISPA] Strange problem with Canopy 9000APC > To: "WISPA General List" <mailto:wireless@wispa.org>> > Date: Thursday, June 13, 2013, 10:01 AM > > > Moisture is not an issue. Good drip loops on both the antenna > cable and CAT-5 Cables. We actually sealed the entry of the > radio with mastic to be sure. The first radio lasted about 10 > months. When it went, we first swapped antennas, thinking > maybe a lightning strike damaged it (we've had the same effect > on signal from bad antenna). That did nothing to help, so we > next swapped the radio. Signal back. That lasted about four > weeks. Swapped radio again, and signal back. Lasted about 12 > hours this time. > No visible damage to any of the radios. No moisture found > inside. We don't have capability to test in-house. Will send > to SWG or Wireless Units to have them take a look. > Dave Hannum > New Era Broadband > > > On Thu, Jun 13, 2013 at 9:46 AM, Fred Goldstein > <http://mc/compose?to=fgoldst...@ionary.com>> wrote: > > On 6/13/2013 7:43 AM, David Hannum wrote: > > We're having an issue with a 9000APC that is very > strange. Here is the > > situation. We have a remote water tank (stand pipe 75' > high) that has a > > few homes around it. So, we have a 9000APC and a > connectorized 2450AP > > on the tower, both on Omni's. The antennas are on a > stand almost > > exactly 4' apart. There are six subs on the 900MHz > radio. About a > > month ago, I had an issue where (after about 9 months) > the signal to all > > of the customers just faded out, to the point that only > two subs were > > still good. I swapped the antenna and that did not > help. I swapped the > > radio, and that fixed the problem. Trouble is, it only > lasted about > > three weeks, and the same thing happened again. I > swapped the radio > > again yesterday, and today, I'm back in the same boat. > The radio in the > > AP keeps going out. I had the climbers check the > grounding, and we > > actually ran a dedicated ground yesterday off the water > tank. My knee > > jerk feeling today is that maybe the radios are too > close together, and > > the 2450 is burning up the 900. Could this be the case? > Any ideas? > > Here is an example of what happens. Customers that run > signals -47 to > > -57 become -70 to -75 and those who's signals were -70 > and up fall clear > > off. Swap the radio, and everything goes back to > normal. This is now > > three radios that have gone, each lasting a much shorter > time than the > > previous. (this one did not make it 24 hours). > > I can't completely rule out lightning - the tower is in > a very wooded > > area. But usually you burn up the NIC in that case - > not weaken the radio. > > Thoughts? > > Interesting mystery! Clearly you don't want to blow more > radios this way. > > Any more clues a
Re: [WISPA] Strange problem with Canopy 9000APC
Are all the ground points bonded together? David Hannum wrote: > We're having an issue with a 9000APC that is very strange. Here is the > situation. We have a remote water tank (stand pipe 75' high) that has > a few homes around it. So, we have a 9000APC and a connectorized > 2450AP on the tower, both on Omni's. The antennas are on a stand > almost exactly 4' apart. There are six subs on the 900MHz radio. > About a month ago, I had an issue where (after about 9 months) the > signal to all of the customers just faded out, to the point that only > two subs were still good. I swapped the antenna and that did not > help. I swapped the radio, and that fixed the problem. Trouble is, it > only lasted about three weeks, and the same thing happened again. I > swapped the radio again yesterday, and today, I'm back in the same > boat. The radio in the AP keeps going out. I had the climbers check > the grounding, and we actually ran a dedicated ground yesterday off > the water tank. My knee jerk feeling today is that maybe the radios > are too close together, and the 2450 is burning up the 900. Could > this be the case? Any ideas? > Here is an example of what happens. Customers that run signals -47 to > -57 become -70 to -75 and those who's signals were -70 and up fall > clear off. Swap the radio, and everything goes back to normal. This > is now three radios that have gone, each lasting a much shorter time > than the previous. (this one did not make it 24 hours). > I can't completely rule out lightning - the tower is in a very wooded > area. But usually you burn up the NIC in that case - not weaken the > radio. > Thoughts? > Dave Hannum > New Era Broadband > > > ___ > Wireless mailing list > Wireless@wispa.org > http://lists.wispa.org/mailman/listinfo/wireless ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Strange problem with Canopy 9000APC
The first radio went bad on the first antenna. The second and third radios have gone bad on the second antenna. We'll probably swap the antenna again this afternoon on this one. Dave Hannum New Era Broadband On Thu, Jun 13, 2013 at 10:05 AM, Jason Bailey wrote: > That's why I said antenna. It happened frequently after changing the > antenna. > > --- On *Thu, 6/13/13, David Hannum * wrote: > > > From: David Hannum > > Subject: Re: [WISPA] Strange problem with Canopy 9000APC > To: "WISPA General List" > Date: Thursday, June 13, 2013, 10:01 AM > > > Moisture is not an issue. Good drip loops on both the antenna cable and > CAT-5 Cables. We actually sealed the entry of the radio with mastic to be > sure. The first radio lasted about 10 months. When it went, we first > swapped antennas, thinking maybe a lightning strike damaged it (we've had > the same effect on signal from bad antenna). That did nothing to help, so > we next swapped the radio. Signal back. That lasted about four weeks. > Swapped radio again, and signal back. Lasted about 12 hours this time. > > No visible damage to any of the radios. No moisture found inside. We > don't have capability to test in-house. Will send to SWG or Wireless Units > to have them take a look. > > Dave Hannum > New Era Broadband > > > > On Thu, Jun 13, 2013 at 9:46 AM, Fred Goldstein > http://mc/compose?to=fgoldst...@ionary.com> > > wrote: > > On 6/13/2013 7:43 AM, David Hannum wrote: > > We're having an issue with a 9000APC that is very strange. Here is the > > situation. We have a remote water tank (stand pipe 75' high) that has a > > few homes around it. So, we have a 9000APC and a connectorized 2450AP > > on the tower, both on Omni's. The antennas are on a stand almost > > exactly 4' apart. There are six subs on the 900MHz radio. About a > > month ago, I had an issue where (after about 9 months) the signal to all > > of the customers just faded out, to the point that only two subs were > > still good. I swapped the antenna and that did not help. I swapped the > > radio, and that fixed the problem. Trouble is, it only lasted about > > three weeks, and the same thing happened again. I swapped the radio > > again yesterday, and today, I'm back in the same boat. The radio in the > > AP keeps going out. I had the climbers check the grounding, and we > > actually ran a dedicated ground yesterday off the water tank. My knee > > jerk feeling today is that maybe the radios are too close together, and > > the 2450 is burning up the 900. Could this be the case? Any ideas? > > Here is an example of what happens. Customers that run signals -47 to > > -57 become -70 to -75 and those who's signals were -70 and up fall clear > > off. Swap the radio, and everything goes back to normal. This is now > > three radios that have gone, each lasting a much shorter time than the > > previous. (this one did not make it 24 hours). > > I can't completely rule out lightning - the tower is in a very wooded > > area. But usually you burn up the NIC in that case - not weaken the > radio. > > Thoughts? > > Interesting mystery! Clearly you don't want to blow more radios this way. > > Any more clues about what may have happened right before the failures? > I'm wondering about weather events. Did it fail after a rain storm? > Water coming in to the radio or corroding the antenna connectors might > result. And if the antenna's connector is flaky, re-attaching it to a > new radio might be a temporary fix, but reattaching it to an old radio > might "fix" it too (temporariy). Have you examined the broken radios in > the shop? > > -- > Fred R. Goldstein fred "at" interisle.net > Interisle Consulting Group > +1 617 795 2701 > ___ > Wireless mailing list > Wireless@wispa.org <http://mc/compose?to=Wireless@wispa.org> > http://lists.wispa.org/mailman/listinfo/wireless > > > > -Inline Attachment Follows- > > > ___ > Wireless mailing list > Wireless@wispa.org <http://mc/compose?to=Wireless@wispa.org> > http://lists.wispa.org/mailman/listinfo/wireless > > > ___ > Wireless mailing list > Wireless@wispa.org > http://lists.wispa.org/mailman/listinfo/wireless > > ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Strange problem with Canopy 9000APC
Grounding points bonded. On Thu, Jun 13, 2013 at 10:03 AM, Jay Weekley wrote: > Are all the ground points bonded together? > > David Hannum wrote: > > We're having an issue with a 9000APC that is very strange. Here is the > > situation. We have a remote water tank (stand pipe 75' high) that has > > a few homes around it. So, we have a 9000APC and a connectorized > > 2450AP on the tower, both on Omni's. The antennas are on a stand > > almost exactly 4' apart. There are six subs on the 900MHz radio. > > About a month ago, I had an issue where (after about 9 months) the > > signal to all of the customers just faded out, to the point that only > > two subs were still good. I swapped the antenna and that did not > > help. I swapped the radio, and that fixed the problem. Trouble is, it > > only lasted about three weeks, and the same thing happened again. I > > swapped the radio again yesterday, and today, I'm back in the same > > boat. The radio in the AP keeps going out. I had the climbers check > > the grounding, and we actually ran a dedicated ground yesterday off > > the water tank. My knee jerk feeling today is that maybe the radios > > are too close together, and the 2450 is burning up the 900. Could > > this be the case? Any ideas? > > Here is an example of what happens. Customers that run signals -47 to > > -57 become -70 to -75 and those who's signals were -70 and up fall > > clear off. Swap the radio, and everything goes back to normal. This > > is now three radios that have gone, each lasting a much shorter time > > than the previous. (this one did not make it 24 hours). > > I can't completely rule out lightning - the tower is in a very wooded > > area. But usually you burn up the NIC in that case - not weaken the > > radio. > > Thoughts? > > Dave Hannum > > New Era Broadband > > > > > > ___ > > Wireless mailing list > > Wireless@wispa.org > > http://lists.wispa.org/mailman/listinfo/wireless > > ___ > Wireless mailing list > Wireless@wispa.org > http://lists.wispa.org/mailman/listinfo/wireless > ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Strange problem with Canopy 9000APC
That's why I said antenna. It happened frequently after changing the antenna. --- On Thu, 6/13/13, David Hannum wrote: From: David Hannum Subject: Re: [WISPA] Strange problem with Canopy 9000APC To: "WISPA General List" Date: Thursday, June 13, 2013, 10:01 AM Moisture is not an issue. Good drip loops on both the antenna cable and CAT-5 Cables. We actually sealed the entry of the radio with mastic to be sure. The first radio lasted about 10 months. When it went, we first swapped antennas, thinking maybe a lightning strike damaged it (we've had the same effect on signal from bad antenna). That did nothing to help, so we next swapped the radio. Signal back. That lasted about four weeks. Swapped radio again, and signal back. Lasted about 12 hours this time. No visible damage to any of the radios. No moisture found inside. We don't have capability to test in-house. Will send to SWG or Wireless Units to have them take a look. Dave Hannum New Era Broadband On Thu, Jun 13, 2013 at 9:46 AM, Fred Goldstein wrote: On 6/13/2013 7:43 AM, David Hannum wrote: > We're having an issue with a 9000APC that is very strange. Here is the > situation. We have a remote water tank (stand pipe 75' high) that has a > few homes around it. So, we have a 9000APC and a connectorized 2450AP > on the tower, both on Omni's. The antennas are on a stand almost > exactly 4' apart. There are six subs on the 900MHz radio. About a > month ago, I had an issue where (after about 9 months) the signal to all > of the customers just faded out, to the point that only two subs were > still good. I swapped the antenna and that did not help. I swapped the > radio, and that fixed the problem. Trouble is, it only lasted about > three weeks, and the same thing happened again. I swapped the radio > again yesterday, and today, I'm back in the same boat. The radio in the > AP keeps going out. I had the climbers check the grounding, and we > actually ran a dedicated ground yesterday off the water tank. My knee > jerk feeling today is that maybe the radios are too close together, and > the 2450 is burning up the 900. Could this be the case? Any ideas? > Here is an example of what happens. Customers that run signals -47 to > -57 become -70 to -75 and those who's signals were -70 and up fall clear > off. Swap the radio, and everything goes back to normal. This is now > three radios that have gone, each lasting a much shorter time than the > previous. (this one did not make it 24 hours). > I can't completely rule out lightning - the tower is in a very wooded > area. But usually you burn up the NIC in that case - not weaken the radio. > Thoughts? Interesting mystery! Clearly you don't want to blow more radios this way. Any more clues about what may have happened right before the failures? I'm wondering about weather events. Did it fail after a rain storm? Water coming in to the radio or corroding the antenna connectors might result. And if the antenna's connector is flaky, re-attaching it to a new radio might be a temporary fix, but reattaching it to an old radio might "fix" it too (temporariy). Have you examined the broken radios in the shop? -- Fred R. Goldstein fred "at" interisle.net Interisle Consulting Group +1 617 795 2701 ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless -Inline Attachment Follows- ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Strange problem with Canopy 9000APC
Moisture is not an issue. Good drip loops on both the antenna cable and CAT-5 Cables. We actually sealed the entry of the radio with mastic to be sure. The first radio lasted about 10 months. When it went, we first swapped antennas, thinking maybe a lightning strike damaged it (we've had the same effect on signal from bad antenna). That did nothing to help, so we next swapped the radio. Signal back. That lasted about four weeks. Swapped radio again, and signal back. Lasted about 12 hours this time. No visible damage to any of the radios. No moisture found inside. We don't have capability to test in-house. Will send to SWG or Wireless Units to have them take a look. Dave Hannum New Era Broadband On Thu, Jun 13, 2013 at 9:46 AM, Fred Goldstein wrote: > On 6/13/2013 7:43 AM, David Hannum wrote: > > We're having an issue with a 9000APC that is very strange. Here is the > > situation. We have a remote water tank (stand pipe 75' high) that has a > > few homes around it. So, we have a 9000APC and a connectorized 2450AP > > on the tower, both on Omni's. The antennas are on a stand almost > > exactly 4' apart. There are six subs on the 900MHz radio. About a > > month ago, I had an issue where (after about 9 months) the signal to all > > of the customers just faded out, to the point that only two subs were > > still good. I swapped the antenna and that did not help. I swapped the > > radio, and that fixed the problem. Trouble is, it only lasted about > > three weeks, and the same thing happened again. I swapped the radio > > again yesterday, and today, I'm back in the same boat. The radio in the > > AP keeps going out. I had the climbers check the grounding, and we > > actually ran a dedicated ground yesterday off the water tank. My knee > > jerk feeling today is that maybe the radios are too close together, and > > the 2450 is burning up the 900. Could this be the case? Any ideas? > > Here is an example of what happens. Customers that run signals -47 to > > -57 become -70 to -75 and those who's signals were -70 and up fall clear > > off. Swap the radio, and everything goes back to normal. This is now > > three radios that have gone, each lasting a much shorter time than the > > previous. (this one did not make it 24 hours). > > I can't completely rule out lightning - the tower is in a very wooded > > area. But usually you burn up the NIC in that case - not weaken the > radio. > > Thoughts? > > Interesting mystery! Clearly you don't want to blow more radios this way. > > Any more clues about what may have happened right before the failures? > I'm wondering about weather events. Did it fail after a rain storm? > Water coming in to the radio or corroding the antenna connectors might > result. And if the antenna's connector is flaky, re-attaching it to a > new radio might be a temporary fix, but reattaching it to an old radio > might "fix" it too (temporariy). Have you examined the broken radios in > the shop? > > -- > Fred R. Goldstein fred "at" interisle.net > Interisle Consulting Group > +1 617 795 2701 > ___ > Wireless mailing list > Wireless@wispa.org > http://lists.wispa.org/mailman/listinfo/wireless > ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Strange problem with Canopy 9000APC
On 6/13/2013 7:43 AM, David Hannum wrote: > We're having an issue with a 9000APC that is very strange. Here is the > situation. We have a remote water tank (stand pipe 75' high) that has a > few homes around it. So, we have a 9000APC and a connectorized 2450AP > on the tower, both on Omni's. The antennas are on a stand almost > exactly 4' apart. There are six subs on the 900MHz radio. About a > month ago, I had an issue where (after about 9 months) the signal to all > of the customers just faded out, to the point that only two subs were > still good. I swapped the antenna and that did not help. I swapped the > radio, and that fixed the problem. Trouble is, it only lasted about > three weeks, and the same thing happened again. I swapped the radio > again yesterday, and today, I'm back in the same boat. The radio in the > AP keeps going out. I had the climbers check the grounding, and we > actually ran a dedicated ground yesterday off the water tank. My knee > jerk feeling today is that maybe the radios are too close together, and > the 2450 is burning up the 900. Could this be the case? Any ideas? > Here is an example of what happens. Customers that run signals -47 to > -57 become -70 to -75 and those who's signals were -70 and up fall clear > off. Swap the radio, and everything goes back to normal. This is now > three radios that have gone, each lasting a much shorter time than the > previous. (this one did not make it 24 hours). > I can't completely rule out lightning - the tower is in a very wooded > area. But usually you burn up the NIC in that case - not weaken the radio. > Thoughts? Interesting mystery! Clearly you don't want to blow more radios this way. Any more clues about what may have happened right before the failures? I'm wondering about weather events. Did it fail after a rain storm? Water coming in to the radio or corroding the antenna connectors might result. And if the antenna's connector is flaky, re-attaching it to a new radio might be a temporary fix, but reattaching it to an old radio might "fix" it too (temporariy). Have you examined the broken radios in the shop? -- Fred R. Goldstein fred "at" interisle.net Interisle Consulting Group +1 617 795 2701 ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Strange problem with Canopy 9000APC
Let us know what you find
- Original Message -
From: David Hannum
To: WISPA General List
Sent: Thursday, June 13, 2013 8:14 AM
Subject: Re: [WISPA] Strange problem with Canopy 9000APC
Swapped antennas first, thinking that might have been the issue. Did not
help. I've heard off list from a couple of others who are experiencing the
same exact issue. And like us, it's limited to a given tower or towers. We
have 9000APC all over the place. This is the only spot for this problem. I'm
wondering about static on this fiberglass shell tower . . . But we ran a
dedicated ground to both the antenna mount and the LPU on the CAT-5. And
overnight it went out.
Dave Hannum
New Era Broadband
On Thu, Jun 13, 2013 at 9:06 AM, Jason Bailey wrote:
Antenna has a dead short. Just a guess.
--- On Thu, 6/13/13, David Hannum
wrote:
From: David Hannum
Subject: [WISPA] Strange problem with Canopy 9000APC
To: "WISPA General List"
Date: Thursday, June 13, 2013, 7:43 AM
We're having an issue with a 9000APC that is very strange. Here is
the situation. We have a remote water tank (stand pipe 75' high) that has a
few homes around it. So, we have a 9000APC and a connectorized 2450AP on the
tower, both on Omni's. The antennas are on a stand almost exactly 4' apart.
There are six subs on the 900MHz radio. About a month ago, I had an issue
where (after about 9 months) the signal to all of the customers just faded out,
to the point that only two subs were still good. I swapped the antenna and
that did not help. I swapped the radio, and that fixed the problem. Trouble
is, it only lasted about three weeks, and the same thing happened again. I
swapped the radio again yesterday, and today, I'm back in the same boat. The
radio in the AP keeps going out. I had the climbers check the grounding, and
we actually ran a dedicated ground yesterday off the water tank. My knee jerk
feeling today is that maybe the radios are too close together, and the 2450 is
burning up the 900. Could this be the case? Any ideas?
Here is an example of what happens. Customers that run signals -47
to -57 become -70 to -75 and those who's signals were -70 and up fall clear
off. Swap the radio, and everything goes back to normal. This is now three
radios that have gone, each lasting a much shorter time than the previous.
(this one did not make it 24 hours).
I can't completely rule out lightning - the tower is in a very
wooded area. But usually you burn up the NIC in that case - not weaken the
radio.
Thoughts?
Dave Hannum
New Era Broadband
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--
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Re: [WISPA] Strange problem with Canopy 9000APC
Swapped antennas first, thinking that might have been the issue. Did not help. I've heard off list from a couple of others who are experiencing the same exact issue. And like us, it's limited to a given tower or towers. We have 9000APC all over the place. This is the only spot for this problem. I'm wondering about static on this fiberglass shell tower . . . But we ran a dedicated ground to both the antenna mount and the LPU on the CAT-5. And overnight it went out. Dave Hannum New Era Broadband On Thu, Jun 13, 2013 at 9:06 AM, Jason Bailey wrote: > Antenna has a dead short. Just a guess. > > --- On *Thu, 6/13/13, David Hannum * wrote: > > > From: David Hannum > > Subject: [WISPA] Strange problem with Canopy 9000APC > To: "WISPA General List" > Date: Thursday, June 13, 2013, 7:43 AM > > > We're having an issue with a 9000APC that is very strange. Here is the > situation. We have a remote water tank (stand pipe 75' high) that has a > few homes around it. So, we have a 9000APC and a connectorized 2450AP on > the tower, both on Omni's. The antennas are on a stand almost exactly 4' > apart. There are six subs on the 900MHz radio. About a month ago, I had > an issue where (after about 9 months) the signal to all of the customers > just faded out, to the point that only two subs were still good. I swapped > the antenna and that did not help. I swapped the radio, and that fixed the > problem. Trouble is, it only lasted about three weeks, and the same thing > happened again. I swapped the radio again yesterday, and today, I'm back > in the same boat. The radio in the AP keeps going out. I had the climbers > check the grounding, and we actually ran a dedicated ground yesterday off > the water tank. My knee jerk feeling today is that maybe the radios are > too close together, and the 2450 is burning up the 900. Could this be the > case? Any ideas? > > Here is an example of what happens. Customers that run signals -47 to -57 > become -70 to -75 and those who's signals were -70 and up fall clear off. > Swap the radio, and everything goes back to normal. This is now three > radios that have gone, each lasting a much shorter time than the previous. > (this one did not make it 24 hours). > > I can't completely rule out lightning - the tower is in a very wooded > area. But usually you burn up the NIC in that case - not weaken the radio. > > Thoughts? > > Dave Hannum > New Era Broadband > > -Inline Attachment Follows- > > > ___ > Wireless mailing list > Wireless@wispa.org <http://mc/compose?to=Wireless@wispa.org> > http://lists.wispa.org/mailman/listinfo/wireless > > > ___ > Wireless mailing list > Wireless@wispa.org > http://lists.wispa.org/mailman/listinfo/wireless > > ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Strange problem with Canopy 9000APC
Antenna has a dead short. Just a guess. --- On Thu, 6/13/13, David Hannum wrote: From: David Hannum Subject: [WISPA] Strange problem with Canopy 9000APC To: "WISPA General List" Date: Thursday, June 13, 2013, 7:43 AM We're having an issue with a 9000APC that is very strange. Here is the situation. We have a remote water tank (stand pipe 75' high) that has a few homes around it. So, we have a 9000APC and a connectorized 2450AP on the tower, both on Omni's. The antennas are on a stand almost exactly 4' apart. There are six subs on the 900MHz radio. About a month ago, I had an issue where (after about 9 months) the signal to all of the customers just faded out, to the point that only two subs were still good. I swapped the antenna and that did not help. I swapped the radio, and that fixed the problem. Trouble is, it only lasted about three weeks, and the same thing happened again. I swapped the radio again yesterday, and today, I'm back in the same boat. The radio in the AP keeps going out. I had the climbers check the grounding, and we actually ran a dedicated ground yesterday off the water tank. My knee jerk feeling today is that maybe the radios are too close together, and the 2450 is burning up the 900. Could this be the case? Any ideas? Here is an example of what happens. Customers that run signals -47 to -57 become -70 to -75 and those who's signals were -70 and up fall clear off. Swap the radio, and everything goes back to normal. This is now three radios that have gone, each lasting a much shorter time than the previous. (this one did not make it 24 hours). I can't completely rule out lightning - the tower is in a very wooded area. But usually you burn up the NIC in that case - not weaken the radio. Thoughts? Dave HannumNew Era Broadband -Inline Attachment Follows- ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Strange problem with Canopy 9000APC
we have a lot of 900 in the airbut honestly, have never heard of anything like this. :( - Original Message - From: David Hannum To: WISPA General List Sent: Thursday, June 13, 2013 6:43 AM Subject: [WISPA] Strange problem with Canopy 9000APC We're having an issue with a 9000APC that is very strange. Here is the situation. We have a remote water tank (stand pipe 75' high) that has a few homes around it. So, we have a 9000APC and a connectorized 2450AP on the tower, both on Omni's. The antennas are on a stand almost exactly 4' apart. There are six subs on the 900MHz radio. About a month ago, I had an issue where (after about 9 months) the signal to all of the customers just faded out, to the point that only two subs were still good. I swapped the antenna and that did not help. I swapped the radio, and that fixed the problem. Trouble is, it only lasted about three weeks, and the same thing happened again. I swapped the radio again yesterday, and today, I'm back in the same boat. The radio in the AP keeps going out. I had the climbers check the grounding, and we actually ran a dedicated ground yesterday off the water tank. My knee jerk feeling today is that maybe the radios are too close together, and the 2450 is burning up the 900. Could this be the case? Any ideas? Here is an example of what happens. Customers that run signals -47 to -57 become -70 to -75 and those who's signals were -70 and up fall clear off. Swap the radio, and everything goes back to normal. This is now three radios that have gone, each lasting a much shorter time than the previous. (this one did not make it 24 hours). I can't completely rule out lightning - the tower is in a very wooded area. But usually you burn up the NIC in that case - not weaken the radio. Thoughts? Dave Hannum New Era Broadband -- ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
[WISPA] Strange problem with Canopy 9000APC
We're having an issue with a 9000APC that is very strange. Here is the situation. We have a remote water tank (stand pipe 75' high) that has a few homes around it. So, we have a 9000APC and a connectorized 2450AP on the tower, both on Omni's. The antennas are on a stand almost exactly 4' apart. There are six subs on the 900MHz radio. About a month ago, I had an issue where (after about 9 months) the signal to all of the customers just faded out, to the point that only two subs were still good. I swapped the antenna and that did not help. I swapped the radio, and that fixed the problem. Trouble is, it only lasted about three weeks, and the same thing happened again. I swapped the radio again yesterday, and today, I'm back in the same boat. The radio in the AP keeps going out. I had the climbers check the grounding, and we actually ran a dedicated ground yesterday off the water tank. My knee jerk feeling today is that maybe the radios are too close together, and the 2450 is burning up the 900. Could this be the case? Any ideas? Here is an example of what happens. Customers that run signals -47 to -57 become -70 to -75 and those who's signals were -70 and up fall clear off. Swap the radio, and everything goes back to normal. This is now three radios that have gone, each lasting a much shorter time than the previous. (this one did not make it 24 hours). I can't completely rule out lightning - the tower is in a very wooded area. But usually you burn up the NIC in that case - not weaken the radio. Thoughts? Dave Hannum New Era Broadband ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Strange problem
Sure they weren't 169.254.whatever,whatever ? -- Original Message -- From: richard sterne Reply-To: WISPA General List Date: Fri, 6 Aug 2010 18:18:01 +0100 >They are not like any of my address ranges from what I remember is >that they were 192.254.?.? each time. > >Richard > > > >WISPA Wants You! Join today! >http://signup.wispa.org/ > > >WISPA Wireless List: wireless@wispa.org > >Subscribe/Unsubscribe: >http://lists.wispa.org/mailman/listinfo/wireless > >Archives: http://lists.wispa.org/pipermail/wireless/ > Sent via the WebMail system at avolve.net WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Strange problem
Aren't those just default Windows IP addresses? It looks like the DHCP code is not working, and they aren't really getting an IP address. Friendly Regards, Mike -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of richard sterne Sent: Friday, August 06, 2010 12:18 PM To: WISPA General List Subject: Re: [WISPA] Strange problem They are not like any of my address ranges from what I remember is that they were 192.254.?.? each time. Richard WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org 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: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Strange problem
That could be it. I will load the service pack next time it happens Thanks Richard WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Strange problem
Could it be related to this? http://support.microsoft.com/kb/928233 John richard sterne wrote: > Older versions of Windows work fine. > > Richard > > > > WISPA Wants You! Join today! > http://signup.wispa.org/ > > > WISPA Wireless List: wireless@wispa.org > > 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: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Strange problem
Older versions of Windows work fine. Richard WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Strange problem
Are you certain they were obtained via DHCP? There very well could be a rogue DHCP server. If this a MT DHCP server you can go into alerts and see if another one is answering DHCP queries. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Fri, Aug 6, 2010 at 1:18 PM, richard sterne wrote: > They are not like any of my address ranges from what I remember is > that they were 192.254.?.? each time. > > Richard > > > > WISPA Wants You! Join today! > http://signup.wispa.org/ > > > WISPA Wireless List: wireless@wispa.org > > 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: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Strange problem
They are not like any of my address ranges from what I remember is that they were 192.254.?.? each time. Richard WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Strange problem
What makes them weird? What's the problem? Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Fri, Aug 6, 2010 at 1:04 PM, richard sterne wrote: > IPv4 but will check. > > Richard > > > > WISPA Wants You! Join today! > http://signup.wispa.org/ > > > WISPA Wireless List: wireless@wispa.org > > 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: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Strange problem
IPv4 but will check. Richard WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Strange problem
Are they just IPv6 addresses? Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Fri, Aug 6, 2010 at 12:48 PM, richard sterne wrote: > I have a AP in a bar for customer access. when Vista and windows 7 > users try to use it they get strange IP addresses. The only way to use > it is to put in a static address. This is the only box on my network > that issues DHCP. Anyone any thoughts? > > Richard > > > > WISPA Wants You! Join today! > http://signup.wispa.org/ > > > WISPA Wireless List: wireless@wispa.org > > 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: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] Strange problem
I have a AP in a bar for customer access. when Vista and windows 7 users try to use it they get strange IP addresses. The only way to use it is to put in a static address. This is the only box on my network that issues DHCP. Anyone any thoughts? Richard WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Strange problem after AP upgrade (at my wits end)
Unfortunately, we have our own set of customized tools used to manage the network and each AP, so the ability to switch OS will not help. Someone has suggested a serial cable and logging the console activity. still trying to figure out the logistics.On 4/6/06, John Scrivner <[EMAIL PROTECTED]> wrote: Try different radios and/or system OS. You could run Mikrotik or Star OSon the board for little money. If it is not a motherboard issue then I think there is something that the OS or radios do not like specific tothat location.Scrivrabbtux rabbtux wrote:> All,>> we have a 50' tower that had a soekris4511 board running a modified > version of pebble linux. The system worked great for nearly 2> years. We upgraded the system to a soekris 4521 and bridged both> pcmcia interfaces to have a 2 sector site. The 2 sector system works > great except for one problem: it randomly dies every 1-4 days and> never comes back! (until a tech goes on site and recycles power)>> The lockup symptoms are as folows:> 1) blinking link light at switch where eth0 is plugged in. > 2) No response from any interface - wired or wireless.> 3) System log is set to issue a "mark" line every 10 minutes, but> nothing is written during this lockup time.>> The system has a working & tested watchdog timer. >> What has been tried (not in this order):>> 1) cron job that pings wireless backhaul and does a reboot if no ping> answer for 10 min. (didn't ever run)>> 2) Thinking it might be a power problem we replaced power supplies. >> 3) Not trusting our POE ethernet cable, we used a second Cat5 cable> for DC power only. 4 wires were used for each line of the DC power,> which was plugged directly into the motherboard. >> 4) Added a ground rod & cable to improve tower grounding. (remember> though, this single sector system worked fine without this added> grounding)>> 5) swapped out the 4521 motherboard. >> 6) created a bench test system. This was an exact duplicate of the> tower system without external antennas, run on the bench.>> wireless LT -> 2 sector system(backhaul link) - > wireless router -> > wired laptop>> In this test system our test AP runs without any wired connections, as> it is in the field. We ran flat out repeated copy scripts for 3-4> days, and transferred approx 40G at about 3Mb/s (way more that actual > field conditions!).>> Never saw test system lockup, its up time was always correct. This> actual 4521 mother board is now on the tower, and we still see the> problem.>> Any suggestions?? >> Thank you kindly,> Marshall--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] Strange problem after AP upgrade (at my wits end)
Try different radios and/or system OS. You could run Mikrotik or Star OS on the board for little money. If it is not a motherboard issue then I think there is something that the OS or radios do not like specific to that location. Scriv rabbtux rabbtux wrote: All, we have a 50' tower that had a soekris4511 board running a modified version of pebble linux. The system worked great for nearly 2 years. We upgraded the system to a soekris 4521 and bridged both pcmcia interfaces to have a 2 sector site. The 2 sector system works great except for one problem: it randomly dies every 1-4 days and never comes back! (until a tech goes on site and recycles power) The lockup symptoms are as folows: 1) blinking link light at switch where eth0 is plugged in. 2) No response from any interface - wired or wireless. 3) System log is set to issue a "mark" line every 10 minutes, but nothing is written during this lockup time. The system has a working & tested watchdog timer. What has been tried (not in this order): 1) cron job that pings wireless backhaul and does a reboot if no ping answer for 10 min. (didn't ever run) 2) Thinking it might be a power problem we replaced power supplies. 3) Not trusting our POE ethernet cable, we used a second Cat5 cable for DC power only. 4 wires were used for each line of the DC power, which was plugged directly into the motherboard. 4) Added a ground rod & cable to improve tower grounding. (remember though, this single sector system worked fine without this added grounding) 5) swapped out the 4521 motherboard. 6) created a bench test system. This was an exact duplicate of the tower system without external antennas, run on the bench. wireless LT -> 2 sector system(backhaul link) - > wireless router -> wired laptop In this test system our test AP runs without any wired connections, as it is in the field. We ran flat out repeated copy scripts for 3-4 days, and transferred approx 40G at about 3Mb/s (way more that actual field conditions!). Never saw test system lockup, its up time was always correct. This actual 4521 mother board is now on the tower, and we still see the problem. Any suggestions?? Thank you kindly, Marshall -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] Strange problem after AP upgrade (at my wits end)
All,we have a 50' tower that had a soekris4511 board running a modified version of pebble linux. The system worked great for nearly 2 years. We upgraded the system to a soekris 4521 and bridged both pcmcia interfaces to have a 2 sector site. The 2 sector system works great except for one problem: it randomly dies every 1-4 days and never comes back! (until a tech goes on site and recycles power)The lockup symptoms are as folows:1) blinking link light at switch where eth0 is plugged in.2) No response from any interface - wired or wireless.3) System log is set to issue a "mark" line every 10 minutes, but nothing is written during this lockup time. The system has a working & tested watchdog timer.What has been tried (not in this order):1) cron job that pings wireless backhaul and does a reboot if no ping answer for 10 min. (didn't ever run) 2) Thinking it might be a power problem we replaced power supplies.3) Not trusting our POE ethernet cable, we used a second Cat5 cable for DC power only. 4 wires were used for each line of the DC power, which was plugged directly into the motherboard.4) Added a ground rod & cable to improve tower grounding. (remember though, this single sector system worked fine without this added grounding)5) swapped out the 4521 motherboard.6) created a bench test system. This was an exact duplicate of the tower system without external antennas, run on the bench.wireless LT -> 2 sector system(backhaul link) - > wireless router -> wired laptopIn this test system our test AP runs without any wired connections, as it is in the field. We ran flat out repeated copy scripts for 3-4 days, and transferred approx 40G at about 3Mb/s (way more that actual field conditions!).Never saw test system lockup, its up time was always correct. This actual 4521 mother board is now on the tower, and we still see the problem.Any suggestions??Thank you kindly,Marshall -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] Strange Problem with AP upgrade (at my wits end)
All, we have a 50' tower that had a soekris 4511 board running a modified version of pebble linux. The system worked great for nearly 2 years. We upgraded the system to a soekris 4521 and bridged both pcmcia interfaces to have a 2 sector site. The 2 sector system works great except for one problem: it randomly dies every 1-4 days and never comes back! (until tech recycles power) The lockup symptoms are as follows: 1) blinking link light at switch where eth0 is plugged in. 2) No response from any interface - wired or wireless 3) System log is set to issue "mark" line every 10 minutes, but nothing is ever written to the log during this time. The system has a working & tested watchdog timer. What has been tried (not in this order): 1) cron job that pings wireless backhaul and does a reboot if no ping answer after 10 min. (didn't ever run) 2) Thinking it might be a power problem we replaced power supplies. 3) Not trusting our POE ethernet cable, we used second Cat5 cable to create DC power plug, and plug directly into motherboard. 4 wires for + and 4wires for - on the DC cable. 4) Added gnd rod & cable to improve tower grounding. (remember though, this single sector system work fine for quite some time) 5) Swapped out the 4521 motherboard. 6) Created bench test system. This was an exact duplicate of the tower system without external antennas. Wireless laptop ->2 sector system (wireless backhaul link)-> wireless router-> wired laptop In this test system our test AP runs without any wired connections, as we use it in the field. We ran flat out repeated copy scripts for 3-4 days, and transfered approx 40G at about 3Mb/sec (way more than field load!). Never saw test AP lockup, its uptime was always correct. This actual 4521 motherboard is now on the tower, and we still see the problem. Any suggestions? Thank you kindly, Marshall -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
