[Elecraft] Antenna question

[Barry LaZar]

George,
     That is a very good question. However, it is hard to quess. But, 
one thing going in your favor is that one antenna is horizontal and the 
other is vertical. This will minimize the amount of coupling between the 
two. If you can get some horizontal separation between the two, it just 
might be physically safe. If you get really good decoupling, it could be 
on the order of 30 db. that means that a 100 Watts will look like 100 mw 
to your receiver.

     I actually do a variant of what you are asking here. I have a 
Carolina Windom and an 18' base tuned vertical. I know there must be 
some interaction, but so far nothing has smoked. I know better than to 
try this without really looking at it, but I didn't think and did it 
anyway. My antennas are about 15-20 apart horizontally and 15 feet 
vertically. Maybe I had better have a look at it myself. But, my guess 
is you'll be OK as long as you don't need to receive at the same time 
you are transmitting. You will overdrive your receiver and not hear 
anything during transmissions, but the 100 mw or less into the receiver 
should be physically safe. That part of the answer should be answered by 
Elecraft as to the maximum energy the receiver can tolerate.

73,
Barry
K3NDM



On 2/11/2014 6:36 PM, George Thornton wrote:
> This might be a stupid question, but here goes.
>
> I have a small lot.  I currently am using a 3 element Yagi that barely fits on the property.  I was thinking about getting a vertical as a second HF antenna.  If I put it up it is going to have to be pretty close to the Yagi.
>
> I have a dual receive K3.  If I have both receivers going, one on each channel, and I broadcast on one of these antennas, am I in any danger of overloading and frying the other receiver?
>
>
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