[TowerTalk] Why is a reflector preferred over director for 2 element designs?

[Eddy Swynar]

Hi Don,

That being the case, so does the diminished "footprint" required of a DE vs. a RE design...correct?

~73~ de Eddy VE3CUI - VE3XZ



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On 2011-08-25, at 12:11 PM, n8de at thepoint.net wrote:

> The question asked was why was DE-Refl preferred.  The 0.1 dB loss in gain compared to 5-10 dB F/B makes a difference worth thinking about.
> 73
> Don
> N8DE
> 
> Quoting Eddy Swynar <deswynar at xplornet.ca>:
> 
>> Hi Don,
>> 
>> True enough, but the forward GAIN is less...
>> 
>> ~73~ de Eddy VE3CUI - VE3XZ
>> 
>> 
>> *************************************************************************************************************************
>> 
>> 
>> On 2011-08-25, at 11:53 AM, n8de at thepoint.net wrote:
>> 
>>> DE-Reflector arrays have better front/back ratios.
>>> 73
>>> Don
>>> N8DE
>>> 
>>> 
>>> Quoting John Harper <john at ae5x.com>:
>>> 
>>>> Most 2-element Yagis and quads use a reflector as the 2nd element.
>>>> I'm wondering what (if any) advantages a reflector has over a
>>>> director as the parasitic element for 2-element Yagi/quad designs.
>>>> 
>>>> Thanks,
>>>> 
>>>> John AE5X
>>>> http://www.ae5x.com/blog
>>>> _______________________________________________
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>>> 
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>> 
> 
> 
>