I seem to recall N0AX stating that the Mosley antennas were tested without a
balun per the manufacturer's instructions but I have not found Ward's post.
I did find this: Mosley officially states that baluns can introduce
unnecessary losses, and their antennas are designed for a balanced pattern
using standard RG-8/U coax.
Joe Subich, W4TV wrote:
The range tests by K7LXC and N0AX some 15 years after I
got rid of the TA36 proved my "feeling" correct. Mosley's
"large tribander" (Pro 77) showed negative gain compared
to a dipole on 10 meters and the phone portion of 20 meters.
In the second report, the Pro 57B showed negative gain
(average) on both 10 and 15 meters.
In both cases, those results were between 4 and 6 dB
inferior to all other antennas in the large tribander class
(Skyhawk, C31XR, TH6/7, TH11, KT34-XA, X9).
Considering that the K7LXC/N0AX tests were performed by
directly comparing the tribanders with a dipole at the
same height, I will stand by their results and my own
anecdotal observations over "receive only" observations
that have no basis for comparison.
73,
... Joe, W4TV
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|