Topband: Elevated Radial Question

[Bob Witmer]

Gentlemen:

I’ve recently installed my first 160M antenna - a 90 foot linearly loaded sloping vertical with a single 126ft elevated ( 10-15ft off the ground ) vertical.

I’m feeding this with a dual core current choke balun and to my surprise it presents a 1.2 SWR at 1.83Mhz at the balun.  2:1 SWR bandwidth is ~ 50KHz.  The shack connection to the balun is through about 125ft of RG213 coax on the ground.

It seems to be working OK but my question is:

I can add one more 126ft elevated vertical but it would be almost at a right angle to the first radial and would come within 15ft of the house with aluminum siding - Will this additional elevated vertical provide some improvement or just create the potential for additional noise pick-up due to it’s location near the house?

Thanks in advance for your thoughts and suggestions.

73

Bob

W3RW