Re: [WISPA] FM radio station site strangeness

2009-01-08 Thread os10rules
s in plain English? What freq. does 100meg > ethernet in > full or half duplex > marlon > > - Original Message - > From: "Josh Luthman" > To: "WISPA General List" > Sent: Wednesday, January 07, 2009 9:07 PM > Subject: Re: [WISPA] FM radio

Re: [WISPA] FM radio station site strangeness

2009-01-08 Thread Chuck McCown - 3
There are pseudo square waves on ethernet. Those have an infinite number of harmonics. - Original Message - From: Brian Rohrbacher To: WISPA General List Sent: Wednesday, January 07, 2009 10:11 PM Subject: Re: [WISPA] FM radio station site strangeness I installed a cat5

Re: [WISPA] FM radio station site strangeness

2009-01-07 Thread Josh Luthman
rom: "Josh Luthman" > To: "WISPA General List" > Sent: Wednesday, January 07, 2009 9:07 PM > Subject: Re: [WISPA] FM radio station site strangeness > > >> With 100BASE-TX hardware, the raw bits (4 bits wide clocked at *25 MHz* at >> the MII) go through

Re: [WISPA] FM radio station site strangeness

2009-01-07 Thread Marlon K. Schafer
I thought I'd try that too. marlon - Original Message - From: Travis Johnson To: WISPA General List Sent: Wednesday, January 07, 2009 9:12 PM Subject: Re: [WISPA] FM radio station site strangeness Marlon, It has taken us almost 10 years at our single FM radio st

Re: [WISPA] FM radio station site strangeness

2009-01-07 Thread Marlon K. Schafer
OK, can we put this in plain English? What freq. does 100meg ethernet in full or half duplex marlon - Original Message - From: "Josh Luthman" To: "WISPA General List" Sent: Wednesday, January 07, 2009 9:07 PM Subject: Re: [WISPA] FM radio station site strangen

Re: [WISPA] FM radio station site strangeness

2009-01-07 Thread Marlon K. Schafer
Not yet. I've got some on the way thought. marlon - Original Message - From: To: "WISPA General List" Sent: Wednesday, January 07, 2009 1:08 PM Subject: Re: [WISPA] FM radio station site strangeness > Do you have the shield

Re: [WISPA] FM radio station site strangeness

2009-01-07 Thread Travis Johnson
really. marlon - Original Message - From: "Adam Goodman" To: "WISPA General List" Sent: Wednesday, January 07, 2009 9:15 AM Subject: Re: [WISPA] FM radio station site strangeness It also sounds like there is a new leak in the waveguide. One more thing you mig

Re: [WISPA] FM radio station site strangeness

2009-01-07 Thread Brian Rohrbacher
From: "Adam Goodman" To: "WISPA General List" Sent: Wednesday, January 07, 2009 9:15 AM Subject: Re: [WISPA] FM radio station site strangeness It also sounds like there is a new leak in the waveguide. One more thing you might try is to move the cable from leg to

Re: [WISPA] FM radio station site strangeness

2009-01-07 Thread Josh Luthman
NOT 350, that's gigE, not 10/100. > > Also, this tower is a 100' wooden pole. Can't move anywhere really. > marlon > > - Original Message - > From: "Adam Goodman" > To: "WISPA General List" > Sent: Wednesday, January 07, 20

Re: [WISPA] FM radio station site strangeness

2009-01-07 Thread Marlon K. Schafer
General List" Sent: Wednesday, January 07, 2009 9:15 AM Subject: Re: [WISPA] FM radio station site strangeness > It also sounds like there is a new leak in the waveguide. One more > thing you might try is to move the cable from leg to leg on the tower > so that you variable lengt

Re: [WISPA] FM radio station site strangeness

2009-01-07 Thread reader
Do you have the shielded cable? Mark - Original Message - From: "Marlon K. Schafer" To: "WISPA General List" Cc: Sent: Wednesday, January 07, 2009 7:47 AM Subject: [WISPA] FM radio station site strangeness > Hi All, > > I think we finally have th

Re: [WISPA] FM radio station site strangeness

2009-01-07 Thread Chuck McCown
and very little AM. - Original Message - From: "Dennis Burgess - Linktechs.net" To: "WISPA General List" Sent: Wednesday, January 07, 2009 10:05 AM Subject: Re: [WISPA] FM radio station site strangeness > We had a site with a 1000 watt AM Hotstick about 100 fe

Re: [WISPA] FM radio station site strangeness

2009-01-07 Thread Adam Goodman
It also sounds like there is a new leak in the waveguide. One more thing you might try is to move the cable from leg to leg on the tower so that you variable length sections that do not resonate at 350MHz or ~100MHz (FM transminssion). On Wed, Jan 7, 2009 at 11:16 AM, Adam Goodman wrote: > We al

Re: [WISPA] FM radio station site strangeness

2009-01-07 Thread Dennis Burgess - Linktechs.net
We had a site with a 1000 watt AM Hotstick about 100 feet from another tower. We ran the cable (non-shielded outdoor rated) and crimped the end at the top of the tower. The installer all of a sudden, felt a burning sensation on his thumb with that wonderful smell of burning skin. Guess what,

Re: [WISPA] FM radio station site strangeness

2009-01-07 Thread Adam Goodman
We also colocate with an FM transmitter. Only 1300W though. we also had interference on our Ethernet lines. We solved it by moving radios away from the FM antenna (3 feet or so on a 90' tower) We also installed ferrits which helped (I actually used a conduit pipe). Grounding the cat5 helped too. I

Re: [WISPA] FM radio station site strangeness

2009-01-07 Thread Chuck McCown
Shielded cable would have been my first thought. We always use 100% shielded at all AP sites. Where there is strong RF it is a must. Sometimes not enough. You can also coil the cat5 at the ends of a run to choke out some common mode RF current. You will not normally find transverse interference