|
|
Posted by blackburst@aol.com on 10/05/96 11:44
Scott Dorsey wrote:
> blackburst@aol.com <blackburst@aol.com> wrote:
> >Scott Dorsey wrote:
> >>
> >> 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?
>
> Whatever model Jerrold (or Winegard, or whoever your local dealer carries)
> sells for the channel of interest. The antenna will have some gain rating
> on it; the higher gain antennas will be more directional.
Must look into that.
>
> >> 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.
>
> You may not need conduit, depending on local code.
I think theywant it for cosmetic and secutiry reasons. (Why did I have
to pick a ballpark...)
You MIGHT be able to
> use outdoor low voltage lighting cable, although in some places it is not
> legal to run 70V circuits over class II wiring. In other places it is.
>
> >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.
>
> That's bad, because it means you're going to need a WHOLE HELL OF A LOT
> more power into an omni antenna than into an antenna with gain. 20 dB
> of antenna gain is the difference between a watt and a hundred watts of
> input power in actual field strength.
>
> I'd first make sure the transmitting antenna you are using is really an
> omni and not a misapplied gain antenna....
I wish they had left some @#$%^^^ documentation!
> --scott
> --
> "C'est un Nagra. C'est suisse, et tres, tres precis."
Navigation:
[Reply to this message]
|