You can run DC or AC over it. Think of it this way, 1000 watt ham radio puts 223 volts AC (at RF frequencies) on the coax and everything is just fine.
All CATV systems put 60 or 90 volts AC on the line to power the amps. From: Ty Featherling Sent: Monday, November 02, 2015 2:09 PM To: [email protected] Subject: [AFMUG] using heliax for DC power up tower? Any reason I couldn't use 1/4" heliax I already have in place up a tower to run power to a POE switch? This is the stuff: https://www.tessco.com/products/displayProductInfo.do?sku=469162 -Ty
