Probably the most durable two conductor is Military WD-1A telephone cable.
available on eBay for $50 for about a half-mile. Special lower
impedance transformers are required to match the line's impedance. It is
also a great source for very durable single wire Beverages with both ends
connected together.
Herb, KV4FZ
On Sun, Jan 12, 2020 at 11:26 AM John Kaufmann via Topband <
topband@contesting.com> wrote:
> I'm looking for a source for durable ladder line for making two-wire
> reversible Beverages for use at the KC1XX contest station. In the past
> we've used the line sold by DX Engineering but over the years we've found
> that the plastic spacers between the wires become brittle and break off.
> It
> may be UV exposure that causes this. We also get some pretty severe
> weather
> at KC1XX hilltop location, with ice in the winter and frequent strong
> winds.
> The spacer breakage sometimes exposes the wires, which then become twisted,
> and the ladder line generally becomes weakened and prone to wire breakage.
>
>
>
> What else is available commercially?
>
>
>
> 73, John W1FV
>
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