[VHFcontesting] Triband antenna for Joe 706

[Dan Evans]

I think we are all over looking a pretty simple solution.

Typically, quads don't fit well with VHF ops because it complicates 
putting several antennas on the same mast.   Like the traditional 
"Christmas tree" style.

However, if we are targeting a new op trying to get his 706 on the air 
with as simple an antenna as possible, then an interlaced quad would 
likely be the best fit.

For example, start with a 6' or so boom.  This should give you enough 
room for about 3 "outside" elements for 6 meters.  On the same boom,  
you can likely put 5 or 6 elements for two meters. [I am doing this from 
memory, hi hi]  For 432, I would guess you would get around 12 elements 
on the same boom.

Run the feeds out to a common point and join 2 & 432 with a diplexer.  
Most rigs use a separate feed line for 6, and a common one for 2 & 432.

Cheap to build.  Good performance.  Uses two feed lines.  Not a lot 
different than the famous HF multi-band quads...

Now I may just have to build the darn thing to prove the point!!!   Does 
someone want to model it for me?

73
Dan
-- 
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On 3/8/2010 9:10 AM, jcplatt1 at mmm.com wrote:
> For several years I have toyed with a simple 6, 2,&  432 antenna that could
> be deployed for roving or portable use.  Size, weight, cost, simplicity,
> play against gain&  performance, so there has to be trade offs.   Here is a
> thumb nail sketch of my design so far -
>
>
>