John,
Yes, if both beverages are to be the same length, a single wire will work in 
both directions.  I take this approach on the E/W antenna:  It's a single-wire 
with transformers at each end and two runs of co-ax to the shack.  For this 
particular antenna, that was the cheapest / most-robust / easiest approach.  
The antennas mentioned in my prior post used a shorter wire length in the 
secondary direction, added as an afterthought subsequent to the installation of 
the JA/EU antennas.   It was an easy way to get two new directions for free - 
spliced end-rolls were used for the wire. 
Vy 73,
Jeff  W0ODS
If you terminate both ends though, isn't it easier just to use one wire and 
>relay switch between the feeder and termination R?
>73
>John
>
>
_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK
 
 |