[TowerTalk] dx baster antenna

Dan Zimmerman N3OX n3ox at n3ox.net
Thu Mar 5 08:32:48 PST 2009


 All 1 sunit. It just doesn't seem linear...Not worth the extra $ to take
> down a tribander that has maybe 4dbd gain on 20mtrs for a huge mono band
> yagi with a 32' boom and truss supports for the boom ect for a mere 3.5 db
> gain. Maybe im missing something here.
>

Tony,

When DX signals are about even with the noise, and the noise and DX signal
are steady, a good set of DXer ears may be able to just detect a 1dB change.

3.5dB might actually be a really useful amount of signal level.  It's
certainly not worthless to add 3.5dB gain to your antenna system, even if it
requires a lot of planning and assistance from TowerTalk (that's why this is
topical, right?)

And if a S-unit is 6dB, that certainly matters.  I did a rough little
experiment in a sound editing program:

http://www.n3ox.net/files/6dB

73
Dan


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