[SixClub] Back on the list

[Ben Ramler]

Antenna works is just more than couplers you know....
 opps sorry people I meant radio works. But what about
these MAxon antennas

--- "Mike (KA5CVH) Urich" <ka5cvh at gmail.com> wrote:

> On 3/12/06, W9FS - Jerry <sixclub at 6mt.com> wrote:
> 
> So if you have a power line that is radiating noise
> or even a TV that
> is say 20db over S9 you have no way of tuning out
> the interference
> with an omni, but with a beam you can.
> 
> Mike wrote
> 
> Yes the gain will be similar enough that aspect
> should not be a matter
> of consideration but there are two other factors
> that I didn't see
> discussed.   I understand most of it but don't
> always properly spit it
> back out correctly so forgive me if I misspeak.
> 
> The first thing is;
> What are you trying to use the antenna to achieve? 
> By that are you
> wanting to work mostly north American (NA) stations
> or are you trying
> to make transoceanic (TO) hops as well?
> 
> The first reason I ask this is because I didn't see
> anyone address the
> vertical angle of radiation.  I have no idea what
> kind of vertical
> pattern the stacked KB6KQ's would exhibit but I bet
> it is much broader
> than a yagi.  This should serve you well for NA
> contacts but I suspect
> poorly for TO.  The second reason I ask is what
> Jerry alluded to and
> that is the stacked omni's will have _NO_ ability
> for rear rejection
> which is important when trying to pull a weak one
> out.
> 
> So IMHO gain is not the only thing you need to be
> concerned with.  You
> need to evaluate how important vertical angle of
> radiation is and
> whether or not a good front to back ratio is needed.
> 
> Now to whether or not to spin a beam (presumably a
> yagi) with a TV
> rotor.  I have seen good tv rotors and I have seen
> "puny" tv rotors. 
> A good TV rotor should handle a 3L yagi _AND
> POSSIBLY_ a 7-10L 144
> yagi as well but you are really stretching the
> limits here.  I did a
> google search for antenna works and found a web-site
> http://www.antennaworks.com/ but its only about RF
> amplifiers.
> 
> As always YMMV
> 
> Mike Urich KA5CVH
> http://ka5cvh.com
> Amateur radio ~is~ a contact sport
> >
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