[HCARC] Field Day Antennas

[Kerry Sandstrom]

Harvey,

I didn't know how the antennas were setup.  If it were me, I would use 
the three existing RG-8/U runs for the multiband vertical, the 2 m and 
the 432 antennas.  I suspect that 1 or 2 RG-8X cables would fit between 
the RG-8/U cables.  That would take care of the low frequency dipoles.

How long have the existing cables been in place?  It may be time to 
replace them anyway.  Perhaps Chuck could give us an idea on the 
lifetime of coax cables.

The purpose of my original e-mail was to get us thinking about the 
usefulness of several lowband dipoles in close proximity to each other.  
In any event, we need to figure out what we can do with the club station 
and its antennas.  If we have to run a couple transmission lines on the 
outside and through a window for this exercise, I think that would be 
acceptable.  It would also let us know how well we can operate multiple 
HF rigs from the club station.

We need to do this as simple as we can.  The more complicated we make 
it, the more problems we will probably have.

Kerry

On 6/6/2014 7:43 AM, Harvey N. Vordenbaum wrote:
> Due to the limitations of the building feed through conduit we only have a
> few coax's (RG-8's) available.
> The HF antennas are combined outside by a remote coax switch box.  There is
> one spare feed through cable however.
> There are separate coax's for the 2M and 2M/.7M antennas.
> Fred has an idea of replacing all the present RG-8's with RG-8X cable thus
> gaining a few more lines passing through. Someone could make a calculation
> about how many lines would be gained. Making this change would not be easy,
> however and time is getting short.
> For field day we may have to pass coax through the partially opened window,
> but then you wouldn't want a generator running nearby.
>
>
> -----Original Message-----
> From: HCARC [mailto:hcarc-bounces at mailman.qth.net] On Behalf Of Kerry
> Sandstrom
> Sent: Thursday, June 05, 2014 10:07 PM
> To: Gary J - N5BAA; hcarc at mailman.qth.net
> Subject: [HCARC] Field Day Antennas
>
> Gary,
>
> You may only need to put an antenna up for the GOTA station across the
> street.  Questions you need to answer are:
>           1.  Do the existing 40 and 80 m dipoles have separate transmission
> lines?
>           2. Can you operate one transceiver on the 20/15/10 Vertical and
> another on the dipoles simultaneously?
>           3. If the answer to 1 is yes, can you operate with one transceiver
> on 80m and another on 40 m simultaneously?
>           4. Is operation even permitted on 30/17/12 m for field day, if not
> you don't need any WARC antennas?
>
> If you can operate on 80 and/or 40 simultaneously with 20/15/10, then that
> is probably all you need.  You won't be able to operate two stations on any
> single band even with separate antennas behind the RC Building.  I suggest
> that if you really don't need to add any more antennas you shouldn't.
>
> You should check out all the antennas and transmission lines that are a
> permanent part of the station a couple weeks ahead of time in case you need
> to make any repairs.
>
> If you are operating as 2 or 3F (why not 4F!!) then I don't think setup time
> is even a factor since the station is ostensibly part of a "permanent"
> emergency fascility.
>
> Kerry
>
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