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Interesting. Thanks. John

But my EZNEC model shows 1.2 kΩ 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

Really nice N event trains of S-bursts, John! -- Dave

Here's some Io-B' followed by some non-Io-A from the 5th. -- Dave

Good evening:? ? ? ? ? non IoA from early this morning. ? ? ?John

Buenos días Chris. Me alegro de tu correo. Estamos hablando de una antena para la recepción de Onda Corta fundamentalmente. También se puede utilizar para transmisión, si uno es radioaficionado

Good evening:? ? ? ? IoB from early this morning. N events included, making the paper that Tom sent very timely. Thanks. ? ? ?John

I modeled your proposed antenna from the sketch using the latest and free version of EZNEC. The parameters I used are as follows: Conductivity: 0.005 S/m Relative Dielectric Constant: 10 (well wateres

Claudio - a few questions:? Is the orientation of the array critical with respect to Jupiter, i.e. should the 3 wires be at 90 degrees to Jupiter? Or just align it east-west with the 3 wires at the

Hi Sabine, I think in Tom's message it's just a non-standard abbreviation for "polarization" -- as in "left-hand circular polarization" -- also seen as "LCP" in the standard abbreviation. -- Dave

Here is an excellent paper on N-Events by Jim Brown, Dave Typinski and Richard Flagg. https://radiojove.gsfc.nasa.gov/library/pubs/docs/SARA-2014_RJ//RJ17_Brown_Jupiter_N_events.pdf Tom

Hi Sabine, I am not able to explain "polar" in this context. Too complex for me unfortunately. Maybe others can help. In the meantime I googled and found this good paper on N-Events by Jim Brown, Dave

Io-B with Jupiter about +half an hour outside the antenna lobe (just missed). Sabine -- Germany Standard time: UTC +1 hour

I will try my best. Sabine -- Germany Standard time: UTC +1 hour

I really enjoyed browsing through your documentation. I spent some time searching the internet to see if the strange 4 m antennas in front of the common backplane belong to the early Telefunken

Great record, the N-event immediately catches the eye. Can you give a description of what "polar" means in this context? Sabine -- Germany Standard time: UTC +1 hour

Here's some really weak (low elevation angle) non-Io-A from the 4th. Better for US west coast / Alaska / Hawaii. -- Dave

Thanks for the trip report Dave, and pics! Very cool. - Tom

Dec 02 2024. Io-C - Heliotown. After 0900 UTC slightly dominant left hand circular polar N- event activity. Tom

Sabine, you might need to add a couple more adjectives when describing "the fan heater next door". ~Duane