On Fri, 20 Jan 2006 04:58:48 -0500, "Dr.Ace"
wrote:



I use 2 HF antennas, a 272 ft delta loop and a 160 meter band 1/4 wave
inverted L antenna, both antennas go thru my MFJ-989C Tuner . When I am not
on the air I leave the antenna switch on the tuner in the "Dummy Load"
position. That connects a 300 watt 50 ohm resistor to the radio's antenna
jack and grounds both antennas.

I have the same tuner. Are the antennas really grounded when in dummy
load position? Looking at the circuit diagram, I can see the coax
braid is always grounded, and one side of the balanced line is always
grounded. But are both sides of all antennas grounded when in the
dummy load position? From what I can see, the coax center conductors,
and one side of the balanced line are left floating.

bob
k5qwg




I hope this is of some help.

Ace - www.WH2T.com