[50mhz] Antenna Modeling

[Dan Schaaf]

Hi Lance

Thanks. I had seen this chart before. However, my antenna is not listed and 
that is why I was hoping that someone could model it, and maybe even add it 
to the list.

I would just love to know what I am working with in terms of real gain on 
this A504HB antenna so that in my next choice of antenna, I will know how 
much improvement I will get.

Dan Schaaf

==================================
K3ZXL www.k3zxl.com
Cape Cod Instruments www.gnm-inc.com
NOBSKA www.nobska.net
==================================

----- Original Message ----- 
From: "Lance Collister, W7GJ" <w7gj at q.com>
To: "Dan Schaaf" <dan-schaaf at att.net>
Cc: <50mhz at mailman.qth.net>
Sent: Sunday, June 26, 2011 3:44 PM
Subject: Re: [50mhz] Antenna Modeling


> Hi Dan,
>
> Most claimed gain figures for 6m antennas are greatly inflated.  You may 
> find this comparison table of interest:
>
> http://www.bigskyspaces.com/w7gj/6mTable.htm
>
> GL and VY 73, Lance
>
> On 6/26/2011 11:49 AM, Dan Schaaf wrote:
>> Hi All,
>>
>> I have a Diamond A504HB 4 element yagi for 6 meters.
>> The manual says that it is 10.8 dbi gain.
>> I am not sure what to believe because that seems pretty high for a 4 
>> element yagi with 10.66 ft length boom.
>>
>> Has anyone ever modeled this antenna? Or is there anyone here who is 
>> willing to  model it? I have all of the construction details.
>>
>> I am in SW Florida and have worked as far as several JA stations with it 
>> but they were just above the noise. Last night JA6GCE was coming in and 
>> he was the strongest that I had ever heard a JA but still not moving the 
>> S meter.
>>
>> Now, I have to say that this yagi is on top of a 28 ft tower and so I 
>> know that I am height limited. But I am just curious of it's real gain 
>> compared to other antennas on the market.
>>
>> Dan Schaaf
>>
>> ==================================
>> K3ZXL www.k3zxl.com
>> Cape Cod Instruments www.gnm-inc.com
>> NOBSKA www.nobska.net
>> ==================================
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>
>
> -- 
> Lance Collister, W7GJ
> (ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ)
> P.O. Box 73
> Frenchtown, MT   59834-0073
> USA
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> 2m DXCC #11/6m DXCC #815
>
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