Fair point.
> On Apr 20, 2019, at 14:39, <[email protected]> <[email protected]> wrote: > > Be fun to see if the problem changes when switching to a different antenna > and or transmission line. > > From: Matt Hoppes > Sent: Saturday, April 20, 2019 12:28 PM > To: AnimalFarm Microwave Users Group > Subject: Re: [AFMUG] Fwd: CAT5. FM. And Rain > > I believe there is a spare antenna already connected. I’ll have to check on > Monday. > >> On Apr 20, 2019, at 14:22, <[email protected]> <[email protected]> wrote: >> >> Do they have a spare FM antenna you could connect to a temp line and perhaps >> pull it up the tower while on? >> >> I know I am getting increasingly crazy with ideas here but just spitballing. >> >> From: Matt Hoppes >> Sent: Saturday, April 20, 2019 12:17 PM >> To: AnimalFarm Microwave Users Group >> Subject: Re: [AFMUG] Fwd: CAT5. FM. And Rain >> >> The Nautel doesn’t ramp. It’s all or nothing. >> >>> On Apr 20, 2019, at 13:03, Chuck McCown <[email protected]> wrote: >>> >>> Would you be allowed to ramp up the RF and see what levels cause what kinds >>> of problems? >>> >>> From: Chuck McCown >>> Sent: Saturday, April 20, 2019 10:47 AM >>> To: AnimalFarm Microwave Users Group >>> Subject: Re: [AFMUG] Fwd: CAT5. FM. And Rain >>> >>> Do you have perhaps a grounding issue at one end or the other? Most >>> ethernet devices have phy transformers that ground directly or through a >>> capacitor. Ground potential differences between one end and the other can >>> cause a problem like this. >>> >>> If you are connected to an earth ground that changes with moisture then >>> perhaps a ground loop is causing problems. This seems backwards but it may >>> be ground related somehow. >>> >>> Fiber >>> Spray water >>> Liquidtight >>> >>> I hate to suggest the intermod theory as it seems a bit unlikely to have >>> intermod strong enough to interfere with an ethernet signal, but not too >>> many things left to think. >>> >>> >>> >>> From: Matt Hoppes >>> Sent: Saturday, April 20, 2019 10:41 AM >>> To: AnimalFarm Microwave Users Group >>> Subject: Re: [AFMUG] Fwd: CAT5. FM. And Rain >>> >>> The issue has gotten worse over the last two years. With it be terrible >>> right now. >>> >>> We just reran cable last month. All new cable and radios. And still having >>> the issue. >>> >>>> On Apr 20, 2019, at 12:03, Chuck McCown <[email protected]> wrote: >>>> >>>> You would have to climb it with a garden sprayer strapped to your back. >>>> I am more of the opinion of the corroded RJ45. >>>> >>>> From: Matt Hoppes >>>> Sent: Saturday, April 20, 2019 8:42 AM >>>> To: AnimalFarm Microwave Users Group >>>> Subject: Re: [AFMUG] Fwd: CAT5. FM. And Rain >>>> >>>> Not in liquidtight. >>>> >>>> Have ground lifted and grounded. No change. >>>> >>>> Have not wet things (would be difficult - no ready source of water) >>>> >>>> Obviously RF is getting into the Ethernet, when things are wet. I’m just >>>> trying to figure out why. Clearly a connection is being made somewhere it >>>> shouldn’t be. >>>> >>>> >>>> >>>>> On Apr 20, 2019, at 09:58, Chuck McCown <[email protected]> wrote: >>>>> >>>>> So moisture + rf = Ethernet interference. Just as originally stated. No >>>>> standing waves. >>>>> Is your cat5 in liquidtight? Have you played with grounding & >>>>> ungrounding the shields? How about taking a garden sprayer and >>>>> selectively wetting things? >>>>> >>>>> Sent from my iPhone >>>>> >>>>> Begin forwarded message: >>>>> >>>>>> From: Matt Hoppes <[email protected]> >>>>>> Date: April 20, 2019 at 7:52:12 AM MDT >>>>>> To: Chuck McCown <[email protected]> >>>>>> Subject: Re: [AFMUG] CAT5. FM. And Rain >>>>>> >>>>>> Yes. Problem goes away. >>>>>> >>>>>>>> On Apr 20, 2019, at 09:51, Chuck McCown <[email protected]> wrote: >>>>>>> >>>>>>> Have you killed the ref when you are having the problem? Might not be >>>>>>> ref related. >>>>>>> >>>>>>> Sent from my iPhone >>>>>>> >>>>>>>>> On Apr 19, 2019, at 7:11 PM, Matt Hoppes >>>>>>>>> <[email protected]> wrote: >>>>>>>> >>>>>>>> 19watts >>>>>>>> >>>>>>>>>> On 4/19/19 8:58 PM, Chuck McCown wrote: >>>>>>>>> What is the reflected power when you are having problems? >>>>>>>>> Sent from my iPhone >>>>>>>>>>> On Apr 19, 2019, at 6:41 PM, Matt Hoppes >>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>> >>>>>>>>>> My thoughts too. But the reflected power right now is only 19watts >>>>>>>>>> out of 9,000. >>>>>>>>>> >>>>>>>>>>>> On Apr 19, 2019, at 20:14, Chuck McCown <[email protected]> wrote: >>>>>>>>>>> >>>>>>>>>>> My guess is that the FM station has a problem with the antenna or >>>>>>>>>>> transmission line. Moisture throws off impedance somewhere and you >>>>>>>>>>> have a strong standing wave on the transmission line. Probably a >>>>>>>>>>> bad connector. >>>>>>>>>>> >>>>>>>>>>> Sent from my iPhone >>>>>>>>>>> >>>>>>>>>>>>> On Apr 19, 2019, at 5:52 PM, Matt Hoppes >>>>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>>>> >>>>>>>>>>>> Looking to the wisdom of the AF group on this. >>>>>>>>>>>> >>>>>>>>>>>> I have some equipment on an FM tower. It’s a 9kw station around >>>>>>>>>>>> 150ft. We are at 250ft with two sectors and a backhaul. Netonix >>>>>>>>>>>> switch in shelter. >>>>>>>>>>>> >>>>>>>>>>>> Nothing else on the tower. >>>>>>>>>>>> >>>>>>>>>>>> Normally all is fine. When it rains or is very moist out (heavy >>>>>>>>>>>> heavy fog) we start having major Ethernet negotiation issues. >>>>>>>>>>>> The ports will go from 1Gig to 10F sometimes. Sometimes drop >>>>>>>>>>>> completely. >>>>>>>>>>>> >>>>>>>>>>>> I’ve got ferrite beads wrapped about 5 times top and bottom. >>>>>>>>>>>> >>>>>>>>>>>> Any further words of wisdom on what to try? I suspect some odd >>>>>>>>>>>> grounding issue. But not sure how to track it down or isolate it. >>>>>>>>>>>> -- >>>>>>>>>>>> AF mailing list >>>>>>>>>>>> [email protected] >>>>>>>>>>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>>>>>>>>>> >>>>>>>>>>> -- >>>>>>>>>>> AF mailing list >>>>>>>>>>> [email protected] >>>>>>>>>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> AF mailing list >>>>>>>>>> [email protected] >>>>>>>>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>>>> -- >>>>> AF mailing list >>>>> [email protected] >>>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>>> -- >>>> AF mailing list >>>> [email protected] >>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>>> -- >>>> AF mailing list >>>> [email protected] >>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> -- >>> AF mailing list >>> [email protected] >>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> -- >>> AF mailing list >>> [email protected] >>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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