[TowerTalk] M2 7&10-30LP8 vs 2 or 3 element tribander

[Jim Brown]

In my experience, the only way to compare any system with such a small 
difference in performance is by A/B testing. That means the two antennas 
mounted close to each other with elements in line (to minimize coupling 
between them) and at the same height, with a LOT of testing to average 
out the effects of QSB (or by studying cluster spots).

Does 1-2 dB matter?  For casual operation, no. For serious weak signal 
work, when your signal is at the level of the other guy's noise, it can 
matter a LOT. But anecdotal comments from owners of one antenna or the 
other are hardly meaningful, and often based more on the pride of the 
owner in the choice he made in buying what he bought. :) If you doubt 
this statement, spend a few hours reading the archive of the email 
reflector devoted to ANY manufacturer's radio.

73, Jim K9YC


On Fri,12/9/2016 6:00 AM, Richard Thorne wrote:
> The best I can tell is the log  has about 1db to 2db less gain as 
> compared to other non-trapped multiband designs. 10.5dbi at 65' vs 
> 11.4 to 12.5 dbi (depending on band).
>
> If anyone has the M2 log or other brand log and has compared them to 
> traditional yagi's on short booms I'd be interested to hear your 
> experiences.