Sorry - fat fingers - 60,90,120,150 instead of 60,90,130,150
> On Apr 6, 2025, at 10:47 PM, Stan Stockton <wa5rtg@gmail.com> wrote:
>
> I became a believer when I listened to a recording of an EME signal
> transmitted and received at N2QV…..wait for it. - 20M CW. 20m is the third
> best band for that antenna array. I’ve probably missed it but haven’t heard
> too many instances of EME on 20m CW even with highly optimized mono band
> Yagis.
>
> Rick is way smarter than I could ever imagine being but I believe not correct
> on this one. Model four 32 foot boom optimized Yagi antennas on 20, 15 and 10
> (60,90,130,150 feet) for all three bands and see what you get as compared to
> a single Yagi. The antennas are 36 foot booms but probably average 32 feet
> for any particular band.
>
> I believe it’s more likely that W6BH had some of them out of phase with the
> others than his stack didn’t work well.
>
> Although you would really like to switch between Upper and Both/All and
> see/hear a big difference and can find people who will tell you about the
> gigantic differences they have seen, sometimes you scratch your head because
> you can’t see or hear it, don’t have any of those stories to tell, and have
> to trust the model to be accurate. 2-3 dB is sometimes hard to discern with
> nothing but a transceiver and headphones.
>
> 73…Stan, K5GO
>
>> On Apr 6, 2025, at 9:40 PM, john@kk9a.com wrote:
>>
>> If I recall correctly, N5DX has had a US high score in CQWW many times
>> using a four stack of multiband Yagis vertically stacked on a 150ft rotating
>> tower. I don't know how well they work in an H-Frame.
>>
>> John KK9A
>>
>>
>> Ron WV4P wrote:
>>
>> I am very surprised to learn that multi-band antennas do not work well in
>> stacks.
>>
>> Ron, WV4P
>>
>>>> On Sun, Apr 6, 2025 at 8:48 PM Mike Fatchett W0MU <w0mu at w0mu.com> wrote:
>>>
>>> He could have used 20m monobanders and saved a ton of
>>> money......Obviously money was not an issue. 4 80 ft towers as the
>>> supports.....etc.......And then when it broke you were SOL.
>>>
>>> W0MU
>>>
>>>> On 4/6/2025 7:34 PM, Richard (Rick) Karlquist wrote:
>>>> A stack in 2 dimensions like that only works well on one band.
>>>> It won't be anything great whether SteppIR's or any other tribanders
>>>> are used. W6BH tried a stack of KT34's (only vertical stacking)
>>>> and it didn't work very well, which should have been obvious without
>>>> building it. As was said, more cents than sense.
>>>>
>>>> 73
>>>> Rick N6RK
>>
>>
>>
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