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 <[email protected]> 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, [email protected] 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 > > _________________ > > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
