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Posted by blackburst@aol.com on 10/05/35 11:44
Scott Dorsey wrote:
> blackburst@aol.com <blackburst@aol.com> wrote:
> >Scott Dorsey wrote:
> >>
> >> You HAVE to buy another Telex. You cannot mix and match different
> >> manufacturers units because they all use different modulation and noise
> >> reduction systems.
> >>
> >> You can use any antennae intended for that band. Jerrold single-channel
> >> TV yagis used to be a popular choice.
> >
> >A TV antenna? There are two short antennas on the unit in the rack,
> >rather hard to get at during my brief visit.
>
> Yes. You are, after all, using a TV frequency for the wireless. So
> using a TV antenna tuned to that channel can be a good choice.
Any make/model that comes to mind?
>
> >At a certain point on both field lines, the stands end, and there is a
> >retaining wall which goes from about 4 feet down to 4 inches, as the
> >ground slopes up. I see no existing cabling or channels. There IS an
> >electrical vault beside each light pole, but, the GM thinks it comes in
> >from off the street, the wrong direction.
>
> Who pays the bill for the lighting? If the electric meter is on the GM's
> property, there has to be a conduit going out there.
If it's anything like the light outside my building, which I pay for,
there is no visible meter. The power company charges me a flat
$25.month.
>
> Running 70V audio through a power conduit is not a real good idea, but
> you can do it, the code will allow it, and it can work.
I'm thinking counduit along the top of the wall. But then I have 40
feet of asphalt to cross to get to the pole.
>
> >> I don't understand this. Is this a single point-to-point link or is this
> >> a broadcast link? If you have only a single point to point connection,
> >> just use the right antennas and be done with it.
> >
> >The camera goes to various locations on the field, in the stand, even
> >just outside the park. It has a camera-mounted transmitter with a
> >vertical antenna which, I understand, is supposed to be aimed. It is
> >pucked up by an array of 5 DynaPix antenna just below the booth (in the
> >stands behind home plate.) The link has picture breakup often.
>
> AHH! Okay, it is a point to point link, but the transmitter is being
> moved into different locations, right? You move the camera to where
> it wants to be, then point the antenna at the receive antenna array below
> the booth. Except that they aren't pointing it. Is that it?
Yes. We used the same transmitter whn I did the DNC for a news network,
and I was a "pointer", aiming it at the receive antenna. The ballclub
camera antenna can't really be easily aimed.
>
> Is this a semi-pro group or is it minor league? The minor league guys get
> very upset at being called anything else....
Minor league, I think.
> --scott
>
> --
> "C'est un Nagra. C'est suisse, et tres, tres precis."
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