[SBE] OTA digital TV interference

[Jonathan Solomon]

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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