[TowerTalk] Omnidirectional antenna for domestic contests. Re: TowerTalk Digest, Vol 154, Issue 18
Patrick Greenlee
patrick_g at windstream.net
Tue Oct 13 08:28:37 EDT 2015
If ya wanna get all technical then lets call a spade a manually
operated digging apparatus. But seriously wouldn't that more likely be
"refract" signals than reflect signals if ya wanna get into the physics?
Patrick NJ5G
On 10/13/2015 7:01 AM, Joe Subich, W4TV wrote:
>
> > So the laws of electromagnetic radiation physics do not apply to the
> > east coast LOL !
>
> Of course they do. Except at night in the middle of winter there is
> no "skip zone" on 80/40 meters. The presence or absence of the skip
> zone indicates that ability of the ionoshpere (density) to reflect
> signals at high angles.
>
> 73,
>
> ... Joe, W4TV
>
>
> On 10/12/2015 11:56 PM, Robert Harmon wrote:
>> Joe,
>>
>> So the laws of electromagnetic radiation physics do not apply to the
>> east coast LOL !
>> I have been following this discussion and Jim is basing HIS
>> contributions on actual data.
>> You are digging your self into a hole Joe. Time to stop digging :-)
>>
>> Bob
>> K6UJ
>>
>>
>>
>>
>> On 10/12/15 8:02 PM, Joe Subich, W4TV wrote:
>>> On 10/12/2015 10:50 PM, Jim Brown wrote:
>>>> But at lower angles (30 degrees and below), which is where most of
>>>> the stations we want to work in a domestic contest come in,
>>>
>>> While that may be true for you on the left coast (the land of fruits
>>> and flakes), it is most certainly untrue for those in W3, W4, W8, W9
>>> and W0. Most QSOs for those in flyover country are at takeoff angles
>>> greater than 60 degrees on 80 and 40 meters. However, that still
>>> argues for a height of roughly 50 feet for an 80/40 trapped or fan
>>> dipole (3/8 wave on 40 meters, 3/16 wave on 80 meters). 70 feet (60
>>> to 80 feet) is to be avoided due to the overhead null on 40 meters.
>>>
>>> 73,
>>>
>>> ... Joe, W4TV
>>>
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