Cool....we will all benefit from results, good or bad.

Jaime Solorza

On Sun, Jul 22, 2018, 6:32 PM Brandon Yuchasz <[email protected]>
wrote:

> Jaime.
>
> We have an FM sight giving us trouble. We have a spool of this sitting
> here to be deployed I will report back after we try it.
>
>
>
>
>
> *From:* AF [mailto:[email protected]] *On Behalf Of *Jaime Solorza
> *Sent:* Friday, July 20, 2018 10:01 PM
> *To:* AnimalFarm Microwave Users Group
> *Subject:* Re: [AFMUG] Ethernet problems next to FM Antenna
>
>
>
> Have tried Shireen DC-2020?  Dual shields...we have used it with success
> in SCADA application with high EMI and RFI levels....it's pricey but worked
> for us.
>
> Jaime Solorza
>
>
>
> On Fri, Jul 20, 2018, 8:35 PM Nate Burke <[email protected]> wrote:
>
> I'm curious why Liquidtight works when the foil shield on the Cat5
> doesn't.  Extra distance from the twists?  Heavier gauge steel?  Do you
> need to make sure the liquid tight is grounded, or just the fact that it's
> around the cat5 is enough?
>
> On 7/20/2018 7:04 PM, Chuck McCown wrote:
>
> Yeah, that too.  Some folks could not make it work without the
> liquidtight.
>
>
>
> *From:* Sean Heskett
>
> *Sent:* Friday, July 20, 2018 5:38 PM
>
> *To:* AnimalFarm Microwave Users Group
>
> *Subject:* Re: [AFMUG] Ethernet problems next to FM Antenna
>
>
>
> Put all Ethernet cables inside shielded liquidtight flex conduit.  You can
> buy it st an electrical supply shop.
>
>
>
> Be sure to run the conduit to a metal box at the top and then breakout to
> each ap in smaller shielded conduit.
>
>
>
> -sean
>
>
>
>
>
> On Fri, Jul 20, 2018 at 10:35 AM Nate Burke <[email protected]> wrote:
>
> It looks like the old archives aren't back online yet, so I couldn't go
> searching through there for ideas.
>
> I have a site where we have been co-locating with a 800w FM Transmitter
> for years.  We've always had Ethernet problems at the site since the FM
> went in.  Everything is shielded cat5 (Belden 7919).  It is at a grain
> elevator, our equipment is on one corner of the platform, and the FM
> Transmitter is on the other corner.  We are horizontally separated by
> about 10 feet.  There is no way to get vertical separation.  I used to
> run all the cables down to the bottom of the leg, about 100'.  In an
> effort to make the Ethernet work better, I installed an Edgepoint fed
> with Fiber at the top, so cable lengths between the radios and the
> Edgepoint are now 5'-10'. With the FM Transmitter turned off, everything
> runs perfectly.  When the FM is turned on, most equipment drops to
> 100mb, and some goes down to 10mb.  On the most problematic equipment, I
> have installed the 4 pair FM Filters from Sandman
> http://www.sandman.com/rf.html within 12" of both the switch and the
> radio.  It made no change.
>
> What FM Elimination tricks have I forgotten to try?  I was really
> expecting the short cable lengths to solve the problem.
>
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