Well we did not expect the TET Emtron 6 el dual drive, short boom, liteweight, wide band beam to win this battle but it has been interesting and more testing is in order. The jury is still out!
TET has dual driven elements on a 6 meter boom. LFA is longer with 5 elements loop driven on 8m boom. Results so far show the LFA to have about 2 S points over the TET…BUT…the LFA has a very sharp bandwidth…about a mhz max..move out of that and things go downhill quickly. TET Emtron holds the bandwidth over 4mhz under 2:1. Both antennas are experiencing interaction and the swr on the tet has increased markedly since the lfa went up under it. We will need to remove the tet and see how the lfa does on its own swr wise. (we know how the tet was doing on its own) We may see an increase in bandwidth. Both antenna are fed with the same type of balun and I think we may need to change the balun on the lfa to a coaxial cable air wound type or a 1:1 current type which we have on hand. Every test so far has had the lfa ahead by at least a couple of S points. I can’t say it is any quieter that the TET at this stage because I am not really noticing much difference noise wise. Program for the next few days is to check the antennas together, change the balun of the lfa and remove the tet so the lfa is on its own.