[50mhz] New DXCC activated on 6m!

Sat Jan 29 13:46:38 EST 2011

If you were mainly interested in EME, would a side by side stack on 2 
vertically polarized yagis reduce the ground gain much? It would make the 
mechanical issues much easier.

73s John AA5JG

----- Original Message ----- 
From: "Lance Collister" <w7gj at q.com>
To: "Carl" <km1h at jeremy.mv.com>
Cc: "Magic Band EME Operators" <MagicEME at googlegroups.com>; "50mhz" 
<50mhz at mailman.qth.net>; "James M. Galm, W8WTS" <jim at w8wts.com>; "Bill 
VanAlstyne W5WVO" <w5wvo at cybermesa.net>
Sent: Saturday, January 29, 2011 5:38 PM
Subject: Re: [50mhz] New DXCC activated on 6m!

> Hello Carl, Bill, et al,
>
> There is no question that side by side stacking can be done and it 
> certainly makes
> elevation easier.  And if the yagis are horizontally polarized, there 
> should be
> optimum ground gain.  Typically, a 7 element yagi 20' above the ground 
> would have
> ground gain lobes around 7 and 15 degrees elevation when aimed at the 
> horizon...
> and when elevated, local noise goes down rapidly.
>
> Of course, stacking horizontally polarized antennas side by side 
> introduces
> mechanical challenges since the cross boom needs to be non-conducting on 
> the end
> sections, and the coaxial phasing lines need to drop down from the yagis 
> at right
> angles rather than be dressed along the cross boom.  However, G3WOS has 
> shown with
> his new side-by-side horizontal array what success can be had with 
> elevation.
> Detailed information of the construction and operation of his new array is 
> here:
>
> http://www.gare.co.uk/6m_antenna/
>
> There are a number of exciting new DXCC coming on 6m in the coming months 
> that
> will only be workable on 6m EME, which is why more and more people are 
> gearing up
> now ;-)
>
> GL and VY 73, Lance
>
> On 1/29/2011 5:14 PM, Carl wrote:
>> Why not a side by side long boom array at 10-20' above ground? Elevation 
>> pattern
>> is raised but I wonder at what point you lose the ground gain?
>>
>> Ive heard EME at the horizon with my 35' 8el which is at 60' with a 
>> hilltop 2-3
>> degree negative horizon in most directions. Havent had any interest in 
>> working any
>> yet it but might have to consider if its the only way to get a new 
>> country.
>>
>> Carl
>> KM1H
>>
>>
>> ----- Original Message ----- From: "Bill VanAlstyne W5WVO" 
>> <w5wvo at cybermesa.net>
>> To: <doc at kd4e.com>; <w7gj at q.com>
>> Cc: "James M. Galm, W8WTS" <jim at w8wts.com>; "50mhz" 
>> <50mhz at mailman.qth.net>
>> Sent: Friday, January 28, 2011 10:56 PM
>> Subject: Re: [50mhz] New DXCC activated on 6m!
>>
>>
>>> The primary barrier to 6m EME is man-made noise. While it is possible 
>>> for a
>>> decent horizon-only station with QRO to make the occasional contact with 
>>> EME
>>> super-stations on 6m, elevating the antenna 20 degrees or more above the
>>> horizon can drop your noise floor by 10 dB or more -- and that changes
>>> everything.
>>>
>>> I run a kW+ to 5-over-5 on 6m, and I have been successful in making only
>>> three EME contacts on this band, all with bona fide multi-kilowatt
>>> super-stations in EU. All other 6m EME attempts have failed due to my
>>> inability to even see a signal from most stations, let alone decode 
>>> it --
>>> all while receiving (by Internet) reports of loudspeaker copy on my
>>> transmitted signal. Bottom line, it's all about noise.
>>>
>>> I haven't done it yet, as my ham radio priorities lie elsewhere, but if 
>>> I
>>> was going to get serious about 6m EME, the first thing I would do is put 
>>> up
>>> an elevation rotator system!
>>>
>>> Bill W5WVO
>>> DM65qh
>>>
>>>
>>> -----Original Message----- From: doc at kd4e.com
>>> Sent: Friday, January 28, 2011 01:38
>>> To: w7gj at q.com
>>> Cc: James M. Galm, W8WTS ; 50mhz
>>> Subject: Re: [50mhz] New DXCC activated on 6m!
>>>
>>> I saw the amp listed for him but not the rig.
>>>
>>> OK re. your station - that is good data as to what is necessary for a
>>> serious EME station - good prop. or weak.
>>>
>>> I am trying to learn what Hams are using who are making contacts on
>>> 6M when 99% of Hams hear nothing but static - the requirements do
>>> appear the same for borderline EME conditions: an antenna array up
>>> high, max. legal output, low-loss everything, top-notch rig.
>>>
>>> As you say, under good conditions much less is necessary, at least
>>> on one end of the QSO.
>>>
>>> And, as is true of weak-signal and other DX work, knowledge of the
>>> band, the propagation, and other specific variables matters.
>>>
>>>
>>> --
>>>
>>> Thanks! & 73, KD4E
>>> David Colburn http://kd4e.com
>>> Have an http://ultrafidian.com day
>>> I don't google I SEARCH! http://ixquick.com
>>> Shop Freedom-Friendly http://kd4e.com/of.html
>>> ______________________________________________________________
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>>
>>
>>
>
>
> -- 
> Lance Collister, W7GJ (ex: WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 
> 3D2LR)
> P.O. Box 73
> Frenchtown, MT  59834  USA
> QTH: DN27UB
> TEL: (406) 626-5728   URL: http://www.bigskyspaces.com/w7gj
> LIVE MESSENGER CHAT: w7gj at hotmail.com  SKYPE: lancew7gj
> 2m DXCC #11, 6m DXCC #815
>
> Interested in 6m EME?  Ask me about subscribing to the Magic Band EME 
> email Google
> Group!
> (or click on the link at the bottom of my web page above)
>
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