[Antennas] DC voltage on coax

[William Lambing]

There are 2 series capacitors.  If you will they are connected together.  The RFC injects DC voltage at one end and the other RFC takes the voltage out at the other end.  There is no DC voltage at either the radio or antenna end.  The voltage is present only on the coax between the capacitors.  This keeps DC off of the radio and antenna.

We used 1mh chokes and .01mf caps.  Our frequency range was 6.9 to 7.3mc (before MHz) and it worked.

I think even some of the ARRL Handbooks had a similar item shown.

73

Bill, W0LPQ