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non IoA 12/08/2024 Easley, South Carolina
Good evening again:? ? ? I forgot to add the graphics to the weak non IoA from last night. Sorry. John
By AOL · #12102 ·
non IoA 12/08/2024 Easley, South Carolina
Good evening:? ? ?Some very weak non IoA from last night. John
By AOL · #12101 ·
Re: Solar. 08/12/2024
Salvador:? ? ?Good job! I think I captured the same. Good to have some solar to show. John
By AOL · #12100 ·
Solar 12/08/2024 Easley, South Carolina
Good evening:? ? ? ? ? Solar from today. Some pesky RFI. ? ? John
By AOL · #12099 ·
Solar. 08/12/2024
Hi, Solar event Today. Regards Salvador
By salvador aguirre · #12098 ·
non IoB 12/07/2024 Easley, South Carolina
Good evening:? ? ? ? ? non IoB I think. Nomenclature selection opinions welcomed. ? ? ?John
By AOL · #12097 ·
06 Dec 2024 Io-A
Here's some lackluster Io-A from the 6th. -- Dave
By Dave Typinski · #12096 ·
IoA 12/06/2024 Easley, South Carolina
Good evening:? ? ? Weak IoA from 12/06/2024. John
By AOL · #12095 ·
Dec. 5, 2024 Io-B, Gainesville, Florida
Adding to the excellent John Cox recording of the N event. Here is what I saw of the Io-B N event from Gainesville, Fl Jupiter was a bit beyond the 3-dB point of my antenna to the East. I also had a
By Francisco Reyes · #12094 ·
Re: 05/06 Dec 2024 Io-A
But a catch :)
By Huub Hameleers SWL/JO21JN · #12093 ·
Re: High Gain and Wide Bandwidth Dipole Antenna.
I have used EZNEC (and ELNEC before that) for a few decades.? It was written by Roy Lewella, W7EL, and for years he sold it at a modest price.? He has now retied, though, and made his latest and
By Dave AB7E · #12092 ·
Re: High Gain and Wide Bandwidth Dipole Antenna.
Thanks, Dave, AB7E, for you pointers. I stayed clear of the "high gain" issue as I thought that should be obvious. But, evidently, not so..... Again, thank you. Dave - W?LEV [email protected]>
By W0LEV · #12091 ·
Re: High Gain and Wide Bandwidth Dipole Antenna.
There is a fundamental dichotomy here in this entire discussion.? While a wide bandwidth dipole may perform adequately for somebody depending upon their criteria, there is no such thing as a high
By Dave AB7E · #12090 ·
Re: High Gain and Wide Bandwidth Dipole Antenna.
Yes, EZNEC is an antenna design / evaluation application. Even a 2-wire folded dipole has a nominal feed impedance of 300-ohms and is inappropriate to feed it with 50-ohm coax. Dave - W?LEV
By W0LEV · #12089 ·
05/06 Dec 2024 Io-A
Not the best catch ever. Sabine -- Germany Standard time: UTC +1 hour
By Sabine Cremer · #12088 ·
Re: Dec 02 2024. Io-C N emissions - Heliotown
Oh darn, only a non-native speaker can do that! I associated the "polar" to the "N-event". :-( Sorry, Tom! Thanks for the tip, Dave! And thanks to Tom pointing out the interesting publication. Sabine
By Sabine Cremer · #12087 ·
Re: High Gain and Wide Bandwidth Dipole Antenna.
Claudio, Many thanks for the reply.? Please excuse my manners, I should have apologized for not speaking Spanish before launching into? English!! I speak a little Greek, but no Spanish,
By Chris Pannell · #12086 ·
Re: IoB 12/05/2024 Easley, South Carolina
Interesting. Thanks. John
By AOL · #12085 ·
Re: High Gain and Wide Bandwidth Dipole Antenna.
But my EZNEC model shows 1.2 k¦¸ at the feed. That would require a 24:1 broadband transformer plus balun. I don't believe it is useful with 50-ohm coax at all! I sent out the EZNEC analysis earlier
By W0LEV · #12084 ·
Re: IoB 12/05/2024 Easley, South Carolina
Really nice N event trains of S-bursts, John! -- Dave
By Dave Typinski · #12083 ·