Topband: Rohn 25 Vertical questions.

[Ron WV4P]

Thanks for all the replies and willingness to share hard earned wisdom.

Tim, When you say "May cause noise" Is that on TX ? or ?
I am setting the antenna up to run the 4 parasitic elements like yours, but
it will be phase 2 as the radials for them elements will be tricky on my
very unlevel terrain.

Frank, I do anticipate the use of an inband station although it's not
likely to be utilized much I would not think.  All RX will be on a mix of
Beverages, rx vertical arrays and loops 700 - 1200 foot from the TX tower.

I am a welder, but I can't foresee any safe / reliable way of attaching
anything to Rohn 25. Maybe putting lugs on each of the 5/16 bolts and
running an unbroken #6 copper up each leg and bonding together at the top.
A lot of effort for a likely minimal if any change in scores though.

Ron, WV4P




On Wed, 19 Aug 2020 at 03:56, Mail 10 <mail10 at barefoothorse.com.au> wrote:

> I am planning a similar installation, using Deeco mast sections (6' x
> 10"). I have 20 of these, used of course. I don't think they have been
> manufactured for decades. Sections interface with pin and socket, with 3
> x 1/2" bolts between plates on each end.
>
> Will also be strapping across the joints, as I know what a PITA
> intermittent connections are.
>
> It will be a radiating mast with no other antennas on top, apart from a
> parallel wire for 80 m operation.
>
> Erection won't commence until at least later in Spring, as the ground is
> just so wet now, after one of the wettest years we've had.
>
> 73, Luke VK3HJ
>
> On 19/08/2020 4:06 am, Ron WV4P wrote:
> > Howdy All,
> >
> > I'm getting ready to put up a Rohn 25 Insulated Base ~1/4 wave vertical.
> > (115') and I'd like to get some advice if possible.
> _________________
> Searchable Archives: http://www.contesting.com/_topband - Topband
> Reflector
>