[TowerTalk] Omnidirectional antenna for domestic contests. Re: TowerTalk Digest, Vol 154, Issue 18
Joe Subich, W4TV
lists at subich.com
Tue Oct 13 08:01:27 EDT 2015
> 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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