[NLRS] 222 antennas

Dr. Gerald N. Johnson geraldj at ispwest.com
Fri May 26 11:16:39 EDT 2006


On Fri, 2006-05-26 at 10:46 -0500, jcplatt1 at mmm.com wrote:
> 
> Either antenna will work very very well for you Mike.    I prefer the K1FO
> designs (DSFO222-10RS), but be aware that some construction will be needed.
> Take a look at their downloadable manual .... the elements need to be slid
> into place on the boom and the driven element with its T-match needs to be
> constructed and soldered together.   I have done several of these and its
> no big deal, but just to make you aware that the antenna does not come
> "ready to use" ..... some construction is required.    In comparison, I
> don't know how much work is required to get the M^2 antenna operational.
> As the feed is different, I suspect (but don't know) that it may be nearly
> ready to go .....

The M2 feed is simpler to assemble, the elements still need the keepers
and insulators installed. And the short segments of boom need to be
bolted together. The M2 feed isn't affected much by heavy rain or ice
accumulations. The K1FO designs handle some rain but not ice.

>  anyone else comment on M^2 and the work that is required
> to get them operational out-of-the-box ?   In either case, I'm looking
> forward to working you on 222 from eight grids this June contest Mike !
> If you don't get the antenna in time, you can borrow my end mount three
> element.  222 is THE best VHF band.
> 
> 73, Jon
> W0ZQ
> 

-- 
73, Jerry, K0CQ,
All content copyright Dr. Gerald N. Johnson, electrical engineer



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