[SBE] OTA digital TV interference

Mon Mar 16 15:56:17 EDT 2015

Before you give up on the over the air reception, I would suggest that you review the FCC's Over-the-Air Reception Device (OTARD) rule. It can be found at (http://www.fcc.gov/guides/over-air-reception-devices-rule) and address what antenna placement limitations can be made. I spent a lot of years working in commercial television dealing with satellite home viewer waiver requests in areas where over-the-air reception was available but local rules forbade television antenna installation. In most of the cases I dealt with (including on military installations), the FCC's rule trumped local ordinance which for the most part are unenforceable.

From: SBE [mailto:sbe-bounces at sbe.org] On Behalf Of David Baker
Sent: Monday, March 16, 2015 12:54 PM
To: sbe member discussion mail list
Subject: Re: [SBE] OTA digital TV interference

It's becoming apparent from the responses that whether the problem is reflections or EMI, getting the antenna as far from the train as possible is my best solution.

Unfortunately, I've tried moving the antenna to all available points in the building with no luck so I've run out of options there.  Also, the landlord has strict rules as to where

an antenna can go.  Probably the only option left is cable TV.  It makes sense that bits are corrupt at the antenna already and can't get them back, but trying better

coax wouldn't hurt.  It is a pretty long run now - about 30 feet.

Thanks again to everyone who responded.

On Mon, Mar 16, 2015 at 12:29 PM, Jonathan Solomon <jon at thesolomonhouse.com <mailto:jon at thesolomonhouse.com> > wrote:

I've done many a shows parked on the streets of NYC.  Back in the days of tube monitors, you could always tell when a train was passing underneath as the tube went haywire.  Obviously, the bigger or better (high res) monitor, the worse the problem.  It was only when trains went by, so I'm guessing an EMI (Strong magnetic pull).

As to the antenna question, what about a very directional yagi?  

On Mon, Mar 16, 2015 at 11:26 AM, Dan Slentz via SBE <sbe at sbe.org <mailto:sbe at sbe.org> > wrote:

I remember reading something about the subway trains in NYC having a major power interface that caused all sorts of EMI issues.   Wonder if potentially (pun) a metro type train (large power station centrally located) or even a traditional train (basically giant generator which powers the train since ALL trains, less steam locomotives, are actually electrical) are producing the interference through electrical noise (thinking this is more electrical interference than "train reflection".

  _____  

From: David Baker <dbaker at addison-il.org <mailto:dbaker at addison-il.org> >
To: sbe member discussion mail list <sbe at sbe.org <mailto:sbe at sbe.org> > 
Sent: Monday, March 16, 2015 10:30 AM
Subject: [SBE] OTA digital TV interference

Good morning!

I'm wondering if any TV station engineers are addressing the problem of OTA digital TV interference and loss near trains, or if a solution can be recommended for this problem.  For apartment buildings especially where antenna height is not an option, if that would fix the problem at all.  Can a filter be installed between antenna and TV that would help to remove what I think is EMI coming from the trains?

Thanks for any suggestions!

-- 

Thank you,

David Baker, CBTE <http://www.sbe.org/sections/descriptions.php#CBTE_CBRE> , CBNT <http://www.sbe.org/sections/descriptions.php#CBNT> 

Media Production Coordinator
Community Relations Dept.
Village of Addison
office: 630-693-7554 <tel:630-693-7554> 
cell: 708-935-7829 <tel:708-935-7829> 
www.addisonadvantage.org <http://www.addisonadvantage.org/> 

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-- 

Thank you,

David Baker, CBTE <http://www.sbe.org/sections/descriptions.php#CBTE_CBRE> , CBNT <http://www.sbe.org/sections/descriptions.php#CBNT> 

Media Production Coordinator
Community Relations Dept.
Village of Addison
office: 630-693-7554
cell: 708-935-7829
www.addisonadvantage.org <http://www.addisonadvantage.org> 

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