[Elecraft] XG3 6M beacon W7RDP/B on the air

[Kevin Rock]

Dense stands of trees no longer exist on my mountain.  Many, many square  
miles of timber have been clearcut in the last ten years.  Now I can see  
for a very long way :)
    Kevin.



On Tue, 21 Jun 2011 16:37:27 -0700, Geoffrey Mackenzie-Kennedy  
<gm4esd at btinternet.com> wrote:

> Not an expert Wayne, but earned my $ calculating path loss at HF up to
> microwave during point-to-pont, mobile and relay systems design "back  
> then"
> using the classic 4/3 Earth Radius approach at VHF-Microwave.  
> Unfortunately
> my relevant data is packed, but I understand that the path between Kevin  
> and
> Doug is about 150 miles. So in spite of the elevation of Kevin's QTH, at  
> 50
> MHz the path would not appear to be true line of sight but Fresnel Zone
> obstructed, which together with any loss added by local obstructions  
> such as
> dense tree growth and buildings could put the beacon's signal below  
> Kevin's
> noise floor.
>
> 73,
> Geoff
> GM4ESD
>
>
> On June 21, 2011 at 23:40 Z, Wayne Burdick wrote:
>
>> Do we have any experts at path-loss calculations (over typical
>> Seattlian terrain) on the list?
>>
>> Wayne
>> N6KR
>>
>> On Jun 21, 2011, at 3:34 PM, Kevin Rock wrote:
>>
>>> I should be line of sight to Seattle.  I know I am south of it and
>>> he is using a gain antenna.  Do you think he will reach beyond the
>>> outskirts of Seattle?
>>>   Kevin.
>>>
>>>
>>>
>>>
>>> On Tue, 21 Jun 2011 15:26:00 -0700, Wayne Burdick
>>> <n6kr at elecraft.com> wrote:
>>>
>>>> Also, at 0 dBm power output, his XG3 may only be audible to fairly
>>>> close stations unless there's a serious band opening.
>>>>
>>>> Wayne
>>>> N6KR
>
>
>
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