[SBE] OTA digital TV interference

[Kent Winrich]

So what I am hearing is that the trains are emitting signals on bands they
ought not to?  Perhaps the FCC could help out?  (OK you may get up off of
the ground from laughing....)

Kent Winrich
Director of Broadband and Infrastructure
City of Salisbury, NC
@AmericasGigCity

On Mon, Mar 16, 2015 at 1:29 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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