Originally Posted by MConner
I am adding a #2 comm radio and am thinking this type of antenna install might work since most of what I use it for is receive. ....SNIP
Sorry, that is not how antennas work.
The same elements that make a good transmit antenna make a good receiving antenna. If you want to pump a couple of kilowatts though it there are of course other consideration. For our minuscule 10 or 20 watts, there are none.
As far as using an ELT antenna for comm that will work assuming you are talking about the older 121.5 only ELT antennas.