[Rover] Moxon antenna performance

[Jacob Tennant]

I know what you mean about the heigth issues as I already have bounce a
home-built 6meter loop off of a bank drive-thru ripping the roof rack off of
my Subaru wagon. Already got the rof rack ready to go again but have checked
all drive-thrus bank,McD's, etc... so I know my safe maximum height.

Was looking towards a pair of 2meter moxons in place of a pair of loops?
Aimed either in the same direction or 180 apart to cover 2 directions.

ALSO< in the past we had talked about using voice keyers on rover setups, a
friend of mine a PIC guru, is prototyping a PIC based single message voice
keyer for my rover setup. It uses a Radio Shack type voice recorder unit and
a PIC controller, once the message is recorded one button turns it on and
starts calling. A PTT pickup line stop it if you key the mic the you have to
restart it manually. Also looking at adding "START" capability via the
UP/DOWN buttons on the MIC.  As soon as we get a working unit ready I will
send you one for your testing, but that might not be till next spring as he
is a Electrical Engineering professor at WVU and plays in the spare time,
but he is good as he has developed a fully functional TNC-2 compatable TNC
using a PIC chip from scratch and uses them for 1200,2400,9600, and 19k2
packet but that is dieing out since he internet has grown.

Talk to you again soon.
Jacob Tennant  K8JWT

PS: If you were me, with only one band, 6meters, 160watts, and a moxon go
out for a rove in September? Was thinking instead of multi band operation
just going for 4 grid operation (FM09,EM99,FN00,EN90) in two on Sat & two on
Sun. Might have 2SSB ready but probably will only be 10watts to 25 watts
with a moxon also. I feel like doing it but sometimes it feels like a
waisted effort with such a limited setup, but we all have to start
somewhere...
----- Original Message -----
From: "Dan Evans, N9RLA" <n9rla@yahoo.com>
To: <rover@mailman.qth.net>
Sent: Sunday, July 28, 2002 8:46 PM
Subject: Re: [Rover] Moxon antenna performance


> Hi Jacob,
>
> The Moxon works very well on 6 meters.  The forward gain compares well
with
> a standard 2 element yagi, but it has a wider pattern and a very sharp
null
> off the back.  L.B.Cebik,W4RNL, has loads of info on the Moxon on his web
> page, http://www.cebik.com .  He also done an article in QST about a year
or
> so ago.  I believe he included in his article, and on his web site, a
> program called moxgen.bas that will scale the Moxon to any frequency you
> want.
>
> The beauty of using the Moxon for a Rover antenna is it's quite a bit
> smaller than a standard 2 element yagi.  I built one out of 1/2" tubing,
and
> I believe the width of the antenna was right around 7 feet.
>
> I also built a prototype for 2 meters, which seemed to work well, but I
> haven't used it much.  The 2 meter version is small enough that it should
be
> a reasonable substitute for an omni loop.  I haven't used it much because
> out here in 9 land I need a lot more gain from a 2 meter antenna.  Out
east,
> or from a nice mountain top, your mileage may vary.
>
> I don't think stacking them would work out vary well.  For me, the biggest
> advantage of the Moxon is it's compact size.  Adding a second antenna
would
> defeat that advantage, and for only a modest amount of additional gain.  I
> think you would likely be a lot better off going to a full size 3 or 4
> element yagi in this case.  A lot less trouble, and  likely more forward
> gain as well.  Of course, I've never tried it, so this is pure speculation
> on my part.
>
> Good luck with your antenna work, and sorry to hear about your quad.  I've
> often considered trying to build a "Rover proof" 2 element quad.  Although
> aside from durability another disadvantage of the quad is the vertical
> height makes it tough to stack other antennas on the same mast.  I may yet
> give one a try someday though.  Configured as a diamond, a quad is also
> considerably more narrow than a normal yagi.
>
> 73
> Dan
>
> Dan Evans N9RLA
> Scottsburg, IN 47170
> {EM78}
> IN-Ham list administrator
> QRP-l #1269
> 1/2 of the N9RLA /R no budget Rover Team
> Check out the Rover Resource Page at:
> http://www.qsl.net/n9rla
>
>
> ----- Original Message -----
> From: "Jacob Tennant" <k8jwt@ntelos.net>
> To: <rover@mailman.qth.net>
> Sent: Sunday, July 28, 2002 3:10 PM
> Subject: [Rover] Moxon antenna performance
>
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