[SBE] OTA digital TV interference

[David Baker]

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>
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> 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>
>> *To:* sbe member discussion mail list <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
>> cell: 708-935-7829
>> www.addisonadvantage.org
>>
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>
>
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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
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