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Re: Dual Dipole Antenna Question
Hi John,
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What is your station latitude? -- Dave On 4/5/25 15:58, john.gonyaw via groups.io wrote:
Hi all, |
Dual Dipole Antenna Question
Hi all,
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My name is John Gonyaw. I have recently been attempting to set up a dual dipole antenna and have a few questions about the configuration given my current latitude.
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I am a bit confused on whether to use a phasing cable for the south dipole, as the manual states one is needed for northern hemisphere observers when Jupiter is at southern declinations, though after checking, I have found it is in northern declinations at my current position. The confusion arises when viewing Fig. 3.8 in the manual that provides an image of the phasing cable attached, but was hoping to clarify that this would not be the case if Jupiter is at northern declinations.
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Another question arose when choosing the beam patterns for a dual dipole array. I was hoping to gather the most gain, and noticed the evalvation angles given for each were not close to the maximium or average elevation angle of Jupiter for my given latitude. I had found the maximum elavation angle for Jupiter at 40 degrees N to be about 72, and the only close value for elevation angle was 60 degrees. I was curious about how close the two values should be, or if the elevation angle was incorrectly calculated.?
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I have also attached images of the given elevation angle for Jupiter and dual dipole configurations.
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Thank you!
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Kind Regards,
John Gonyaw
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Re: Solar. 04/04/2025
Thanks Salvador.
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John On Friday, April 4, 2025, 8:20 PM, salvador aguirre via groups.io <drsaguirre@...> wrote:
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April 04, 2025: Nearly continuous solar bursts for several hours
I may be overloading the server by posting all these spectrograms, but I think it is important to document that the Sun was bursting almost continuously for several hours today.? Most of it was pretty faint, with a few strong Type III bursts.
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Richard
250404175000Dark-Sky-Observatory.PNG
250404134615Dark-Sky-Observatory.PNG
250404171407Dark-Sky-Observatory.PNG
250404172406Dark-Sky-Observatory.PNG
250404173406Dark-Sky-Observatory.PNG
250404174405Dark-Sky-Observatory.PNG
250404180019Dark-Sky-Observatory.PNG
250404181019Dark-Sky-Observatory.PNG
250404182018Dark-Sky-Observatory.PNG
250404182018Dark-Sky-Observatory-B.PNG
250404183018Dark-Sky-Observatory.PNG
250404184018Dark-Sky-Observatory.PNG
250404141414Dark-Sky-Observatory.PNG
250404185017Dark-Sky-Observatory.PNG
250404190017Dark-Sky-Observatory.PNG
250404191016Dark-Sky-Observatory.PNG
250404192016Dark-Sky-Observatory.PNG
250404193016Dark-Sky-Observatory.PNG
250404194015Dark-Sky-Observatory.PNG
250404201614Dark-Sky-Observatory.PNG
250404143813Dark-Sky-Observatory.PNG
250404155610Dark-Sky-Observatory.PNG
250404161409Dark-Sky-Observatory.PNG
250404163408Dark-Sky-Observatory.PNG
250404164408Dark-Sky-Observatory.PNG
250404165407Dark-Sky-Observatory.PNG
250404170407Dark-Sky-Observatory.PNG
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Re: Solar Events, Prospect, ME
¿ªÔÆÌåÓý
I'm using a 21 MHz Moxon antenna tuned for 20 MHz,? should be 3 dB better than a dipole.? Not sure it is.
Tom Crowley
From: [email protected] <[email protected]> on behalf of bsneed1 via groups.io <bsneed1@...>
Sent: Friday, April 4, 2025 8:26 PM To: [email protected] <[email protected]> Subject: Re: [Radio JOVE] Solar Events, Prospect, ME ?
Thanks Tom...Interesting in the differences in the spectrograms.
I have a single dipole and a RSP1A receiver and nothing is calibrated. I would guess that for those REALLY interested in these events --- how, where, etc. they occur --- your more refined energy profile is more useful and informative.
Wonder what the plots recorded by the experts look like?
Again, thanks.....bill....
-- Tom Crowley |
Re: Solar Events, Prospect, ME
Thanks Tom...Interesting in the differences in the spectrograms.
I have a single dipole and a RSP1A receiver and nothing is calibrated. I would guess that for those REALLY interested in these events --- how, where, etc. they occur --- your more refined energy profile is more useful and informative.
Wonder what the plots recorded by the experts look like?
Again, thanks.....bill.... |
Solar 04/04/2025 Easley, South Carolina
Good evening: ? ? ?More and more great solar. Thanks to Bill, Richard, Tom and Duane for the heads-up. John
Solar04042025Labeled1A.PNG
Solar04042025Labeled2A.PNG
Solar04042025Labeled3A.PNG
Solar04042025Labeled4A.PNG
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Solar04042025Labeled6A.PNG
Solar04042025Labeled7A.PNG
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Solar04042025Labeled9A.PNG
Solar04042025Labeled10A.PNG
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Solar. 04/04/2025
Hi
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Solar Events Today.
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Salvador ![]()
250404182000.jpg
250404182003PIKIS.PNG
250404201502PIKIS.PNG
250404202002PIKIS.PNG
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250404221002PIKIS.PNG
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Solar 4 APR 2025
Observations from Grafton, WV.
Did not catch as much as others, but here is what I caught. ~Duane
250404141736Grafton-WV_WeakSolar.PNG
250404182022Grafton-WV_MediumSolar.PNG
250404193522Grafton-WV_WeakSolar.PNG
250404201649Grafton-WV_WeakSolar.PNG
250404202045Grafton-WV_WeakSolar.PNG
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Re: Solar Events, Prospect, ME
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From: [email protected] <[email protected]> on behalf of bsneed1 via groups.io <bsneed1@...>
Sent: Friday, April 4, 2025 6:41 PM To: [email protected] <[email protected]> Subject: [Radio JOVE] Solar Events, Prospect, ME ?
Good evening...here are 3 events from this morning. Hopefully, there were more....bill...
-- Tom Crowley |
More Solar Events, 4 April 2025, Prospect, ME
This was the last strong event record but between the first 3 previously posted and this one there were 6 weaker events.
After the 1821:40 event there were 5 more but much weaker. I haven't posted the spectrograms for the weaker events. Anyone interested in the times?
A busy day!.....bill....
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Solar Events April 03, 2025 from the Dark Sky Observatory
Hi All,
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Adding to the ever-growing pile, here are spectrograms from the Dark Sky Observatory of yesterday's solar events.
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Richard
250403175000Dark-Sky-Observatory.PNG
250403123017Dark-Sky-Observatory.PNG
250403164007Dark-Sky-Observatory.PNG
250403165806Dark-Sky-Observatory.PNG
250403172205Dark-Sky-Observatory.PNG
250403195215Dark-Sky-Observatory.PNG
250403190816Dark-Sky-Observatory.PNG
250403192616Dark-Sky-Observatory.PNG
250403194615Dark-Sky-Observatory.PNG
250403155009Dark-Sky-Observatory.PNG
250403160009Dark-Sky-Observatory.PNG
250403160808Dark-Sky-Observatory.PNG
250403162208Dark-Sky-Observatory.PNG
250403163008Dark-Sky-Observatory.PNG
250403163207Dark-Sky-Observatory.PNG
250403163207Dark-Sky-Observatory-B.PNG
250403163607Dark-Sky-Observatory.PNG
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Solar 04/03/2025 Easley, South Carolina
Good evening: ? ? ?Another good solar day. Thanks to Salvador and Duane for the heads-up. John
Solar04032025Labeled1A.PNG
Solar04032025Labeled2A.PNG
Solar04032025Labeled3A.PNG
Solar04032025Labeled4A.PNG
Solar04032025Labeled5A.PNG
Solar04032025Labeled6A.PNG
Solar04032025Labeled7A.PNG
Solar04032025Labeled9A.PNG
Solar04032025Labeled10A.PNG
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Solar 3 APR 2025
Observations from Grafton, WV.
Solar today. ~Duane
250403123359Grafton-WV_WeakSolar.PNG
250403131132Grafton-WV_WeakSolar.PNG
250403144623Grafton-WV_WeakSolar.PNG
250403150013Grafton-WV_WeakSolar.PNG
250403155018Grafton-WV_WeakSolar.PNG
250403160805Grafton-WV_WeakSolar.PNG
250403161202Grafton-WV_WeakSolar.PNG
250403163148Grafton-WV_WeakSolar.PNG
250403163744Grafton-WV_WeakSolar.PNG
250403164042Grafton-WV_MediumSolar.PNG
250403190955Grafton-WV_WeakSolar.PNG
250403192702Grafton-WV_WeakSolar_Noise.PNG
250403194648Grafton-WV_WeakSolar.PNG
250403195244Grafton-WV_WeakSolar.PNG
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