Amen. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Nov 21, 2014 12:53 PM, "Matt Jenkins via Af" <[email protected]> wrote:
> Interference shouldn't cause a drop in DB level. > > > Matthew Jenkins > SmarterBroadband > [email protected] > 530.272.4000 > > On 11/21/2014 09:47 AM, David via Af wrote: > >> That or neighbouring wisp with other gear. >> � >> On 11/21/2014 10:27 AM, Jerry Richardson via Af wrote: >> >>> >>> That my first guess as well, alignment. >>> >>> � >>> >>> *From:*Af [mailto:[email protected]] *On Behalf Of *Bill Prince via >>> Af >>> *Sent:* Friday, November 21, 2014 8:24 AM >>> *To:* [email protected] >>> *Subject:* Re: [AFMUG] What can cause Rx signal drop like this on 900 SM >>> >>> � >>> >>> We have seen this when a tree or branch fell on the SM.� Saw something >>> like this when the SM was mounted on a tree and the tree fell down >>> (amazingly, the SM stayed registered, even though the yagi was pointing >>> into the ground). >>> >>> >>> bp >>> <part-15@SkylineBroadbandService> >>> � >>> >>> On 11/21/2014 7:12 AM, Paul Conlin via Af wrote: >>> >>> Attached Cacti plots show a sudden and significant drop in Rx >>> signal from -56 to -65 around 10pm yesterday.� What can cause >>> such a change?� The graphic shows 24 hours.� The SM says it >>> has been registered for 21 hours since we rebooted AP to change >>> channel so the gap in the middle is not a re-reg.� Must be a >>> sample Cacti missed or is it?� Is it a coincidence this missing >>> sample happens right when the signal level changes?� This is a >>> P10 900 SM.� SM and AP running 13.1.3.� Link test is >>> currently 100x100.� 0.3 miles from AP through some trees.� >>> Very rural location.� AP at 65 feet AGL.� SM at 25 feet.� >>> Eight other SMs on this same AP show absolutely no change in >>> their signals when this specific SM has such a dramatic >>> change.� Nothing special about weather last night.� This SM >>> has been having these Rx signal swings for about 3 weeks.� AP >>> has SM Tx power control set to -64. >>> >>> � >>> >>> On the previous channel it would drop when signal was at lower >>> tier so we made this channel change.� None of the SMs hint at >>> interference on any channel although another SM showed signs of >>> interference too.� Our next closest 900 AP is 8.1 miles.� >>> This SM reports beacon from only one AP.� All AP�s are GPS >>> synced. >>> >>> � >>> >>> � >>> >>> PC >>> >>> Blaze Broadband >>> >>> � >>> >>> � >>> >>> >> >
