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Re: [TowerTalk] M2 40 meter Yagi

To: Tower Talk <towertalk@contesting.com>
Subject: Re: [TowerTalk] M2 40 meter Yagi
From: Grant Saviers <grants2@pacbell.net>
Date: Tue, 13 Oct 2020 16:21:51 -0700
List-post: <mailto:towertalk@contesting.com>
There is really no reason to not publish the modeling results (unless of course they weren't done or are bad). ARRL requires the results for advertising. Free space and one at a "good" elevation are what the better manufacturers are doing. A few make the models available.

One more reason I won't do business ever again with M2.

Grant KZ1W

On 10/13/2020 12:35, kdutson@sbcglobal.net wrote:
I have the 40M4LLDD model.  It has four elements and covers 7.0-7.3 MHz.  SWR 
is below 2.0 across the entire band.  This is possible because it has two 
phased driver elements, one for each segment of the band.  So, you end up with 
two three-element Yogis.  This is a great antenna for $2929.95, as seen on the 
M2 web site.

The 40M4CDD model covers less bandwidth with lower price $2729.95, but promises 
flatter response.  The selling point is that one does not need the frequencies 
above 7.2 since the foreign broadcasters have moved to other frequencies, and 
European hams can now use 7.0-7.2 phone and cw.

If I were the manufacturer, you would not see me publishing a graph like you 
want.  There are too many installations that are far removed from what the 
manufacturer can do to produce the graph.

73, Keith NM5G

-----Original Message-----
From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of Bill via 
TowerTalk
Sent: Tuesday, October 13, 2020 1:46 PM
To: towertalk@contesting.com
Subject: [TowerTalk] M2 40 meter Yagi

M2 has a new version of their 40 meter Yagi - 40M4CDD.  unlike the one it replaced, it 
covers 7.0 - 7.2 mHz, or 7.1- 7.3 mHz.  Of course the "adjustable" elements can 
be shortened to make the sweet spot  up a little higher than 7.0 - 7.2.
The brochure says SWR varies from 1.2- 2.0.  However, when I asked M2 if they 
could send me a print out of the graph they responded they couldn't, which made 
me scratch my head.  $3000 for an antenna and they can't do that?
Anyone out there who has this specific antenna, not the one it replaced, let me 
know your experience with it...SWR, construction etc.
73  Bill K4XS/KH7XS/V31XX
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