Thanks everyone! I’ve order some Wireman 26 GA for the top hat wires and
should be all set.
Much appreciated everyone!!!
73 es DX,
Bob/AA6VB
Robert L. Chortek
> On Apr 11, 2021, at 6:46 AM, Rick@dj0ip.de wrote:
>
> [External Email]
>
> Aha, Joe is right!
> Sorry, I assumed Low Band.
> Sometimes it helps when one can READ! ☹
>
> NO PROBLEM:
> https://www.dj0ip.de/vertical-antennas/80m-on-12m-pole/
> Here you will find the typical lengths for 80m.
> Of course lengths vary slightly from one QTH to the next.
> The Top-Hat wires are about 20 ft. long. Same rules. Use thin wire for the
> top-hats.
>
> 73 - Rick, DJ0IP
> (Nr. Frankfurt, Germany)
> May the Sunspots be with Us!
>
> -----Original Message-----
> From: Topband <topband-bounces+rick=dj0ip.de@contesting.com> On Behalf Of Joe
> Subich, W4TV
> Sent: 11 April 2021 14:36
> To: topband@contesting.com
> Subject: Re: Topband: 43’ 80 Meter Vertical
>
>> On 2021-04-11 5:25 AM, Rick@dj0ip.de wrote:
>> Let's put this in perspective: for the short pole Bob is using, the
>> top-hat wires are going to be in the neighborhood of 100 ft. long.
>> So we do need a lot of space for this.
>
> That is for 160 meters. Bob is building for 80 meters (3545 KHz) so use the
> info here:
> <https://www.dj0ip.de/vertical-antennas/80m-on-12m-pole/>
>
> 73,
>
> ... Joe, W4TV
>
>
>> On 2021-04-11 5:25 AM, Rick@dj0ip.de wrote:
>> I agree with Rick; its better to use 4 top-hat wires.
>>
>> On my Vertical Antenna page, I originally showed plans for verticals with 2,
>> 3, and 4 top-hat wires.
>> I now only show the 4-wire version, except for the Inv.-L.
>>
>> Let's put this in perspective: for the short pole Bob is using, the top-hat
>> wires are going to be in the neighborhood of 100 ft. long.
>> So we do need a lot of space for this.
>>
>> The more top-hat wires, the shorter they need be.
>> But try to keep them equally spaced around the pole and at equal heights.
>>
>> And, if space is an issue, the only solution is a longer pole.
>> For instance, with the 60 ft. Spiderpole, the 4 top-hat wires are only about
>> 82 ft. long.
>> And with the 85 ft. Spiderpole, the wires are about 23 ft. long. (If not
>> for darn HOA's . . . )
>>
>> With these longer poles, the top-hat wires should not exit from the top;
>> these poles are too thin.
>> Drop down one segment and connect the top-hat wires there.
>>
>> 73 - Rick, DJ0IP
>> (Nr. Frankfurt, Germany)
>> May the Sunspots be with Us!
>>
>> -----Original Message-----
>> From: Topband <topband-bounces+rick=dj0ip.de@contesting.com> On Behalf
>> Of Richard (Rick) Karlquist
>> Sent: 11 April 2021 00:35
>> To: Chortek, Robert L. <Robert.Chortek@berliner.com>; TopBand List
>> <topband@contesting.com>
>> Subject: Re: Topband: 43’ 80 Meter Vertical
>>
>>
>>> On 4/10/2021 1:16 PM, Chortek, Robert L. wrote:
>>> Hoping to get some guidance from the antenna gurus here.
>>>
>>>
>>> Can someone tell me if I added two top hat wires 16 GA THHN sloping at 45
>>> degrees “about” how long they would need to be to resonate at 3.545 MHZ.
>>>
>>> Bob/AA6VB
>>> Robert L. Chortek
>>
>> After SWR, the most overrated goal for ham radio antennas is resonance. You
>> should use the amount of top loading that maximizes the radiation
>> resistance. Then put an appropriate reactance in series with the antenna to
>> provide a resistive load to the transmitter at 3545. The reactance may be
>> turn out to be inductive or capacitive. You will also want to make the
>> series reactance variable somehow unless you only ever want to operate on
>> 3545.
>>
>> You would also be advised to use 4 top loading wires instead of just
>> two. There is a substantial advantage for 4 vs 2. Beyond
>> 4 top wires (say 8) the benefits aren't worth the trouble.
>> This is explained by the fact that 4 is the maximum number of top wires that
>> don't couple to each other.
>>
>> It is also advantageous to pull out the top loading wires to a more gentle
>> slope if you can.
>>
>> You can use bare aluminum electric fence wire to reduce weight and wind
>> loading on the vertical.
>>
>>
>> 73
>> Rick N6RK
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