If there is too much IR drop, why not use a higher voltage and a small
linear regulator at the far end? Sure, it's not that efficient, but you can
turn off the supply when not in use.
On Thu, Jan 16, 2025, 04:43 Stan Stockton <wa5rtg@gmail.com> wrote:
> Steve,
>
> Thank you so much for all you do to provide practical information to help
> everyone with their RX antenna projects!
>
> If you are using Cat 6 to provide voltage to 12v relays, do you just feed
> it with enough voltage to overcome the voltage drop, if it is too great.
> For example, in addition to using it for feed lines I would want to provide
> voltage to a YCCC 9 Circle combiner/relays and preamps/relays and the
> voltage drop would be too much if I started with 13.8V in the shack. It
> might be on the edge of working or not if I used two pairs. There is too
> much drop with a Bias T at either end of RG6.
>
> Stan, ZF9CW
>
> > On Jan 15, 2025, at 6:31 PM, ve6wz@shaw.ca wrote:
> >
> > I uploaded a new YouTube video about using CAT6 as a feedline for
> receive antennas.
> > I show how to design and make passive transformers to match the 100 Ohm
> pairs.
> > I also describe a modification of my TI amplifier that I use from my
> BOGs to match the CAT6.
> >
> > About 20 years ago I was using CAT5 for feedlines, so using twisted
> pairs is not new. It's been around a long time.
> > However, I'm expanding my phase Beverages arrays and feeding them with
> CAT 6 helps consolidate feedlines and control voltages into fewer lines in
> the field.
> > It is possible to find some very tough, outdoor direct burial CAT6 that
> can work well.
> >
> > https://youtu.be/i44PU8NJf1M
> >
> > 73, de steve ve6wz
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