[K3CAL] Hospital Installation

[Shawn Donley]

Jim,

Yes, the 70cm Yagi would be on the same mast just below the 2M omni.   You can see the Mt Hope tower(s) from the hospital roof.

The room does not appear to have a main ground buss like normal comm shelters, but there is a common grounding plate near the spot where the cables come in.  Picture attached.  It's a bit of a rats nest in the room but hospital IT plans to clean it up.

Shawn



> On November 15, 2019 at 8:47 PM James Tetlow <k3uga at comcast.net> wrote:
> 
>     Do you propose to mount the 70cm yagi on the same mast below the 2 meter Omni?
>     Is there a ground buss running around the room? Or is there just one main buss close to where the cable enters the room? Want to keep the ground from the outside coax shield and the polyphaser as short as possible.
> 
>     Sent from my iPad,
>     Best Regards, 
>     Jim Tetlow
> 
> 
>         > > On Nov 15, 2019, at 8:26 PM, Shawn Donley <n3ae at comcast.net> wrote:
> > 
> > 
> >     > 
>         > >         All,
> > 
> >         As you probably know by now, CalvertHealth Medical Center (the hospital) has approved our proposal to install an antenna on the hospital roof and equipment in the adjacent climate controlled equipment room.   Both the roof and the equipment room can be reached by elevator and one flight of stairs ... no expensive tower climbers needed.  We will be moving the 2M repeater to the hospital as an experiment once the antenna and coax is installed. 
> > 
> >         We already have a Diamond X300NA antenna suitable for this effort.  With the help of others I put together the attached spreadsheet to list what else we need for a quality install at the hospital.
> > 
> >         This isn't a request for money but rather an opportunity to see if CARA members might have some of the needed hardware which could be donated for the cause, or know of other sources for the listed items but at a better price.
> > 
> >         The 440MHz Yagi is for a link to Mt Hope.
> > 
> >         I also attached a summary of the coverage tests we conducted at the hospital in October, which was very positive for 2M (and less so for 70cm)
> > 
> >         Let me know if you have any questions.
> > 
> >         N3AE
> >         <Estimated Cost for Calvert Hospital Antenna Install.xlsx>
> >         <Oct 2nd 2019 Coverage Test from Hospital Roof.xlsx>
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