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Roland:You've opened up a very large can of enigma. We made many tests with multiple loops some years ago. Not long into the experiments we realized how complex the study would be. Considering all the

Hi, I am a new member of this group. Callsign HB9VQQ. I have been experimenting with Loop antennas for some time. I have been using a Wlelgood 3.1 loop with a diameter of 1m (single loop) for many

In case anyone is interested, I bought an LZ1AQ type amp from Everett before Christmas and finally got it up today.? I'm using a 4 foot loop made from 1/2 hardline, fed with about 50 feet of RG6, and

For inductive reactance reduction of a rectangular cross section conductor compared to a circular one, the width to thickness ratio of about 16:1 is about the point of diminishing returns. This does

The intent of my comment was not to change the topic; rather to ask the question; "If a flat [sheet metal, such as copper] conductor is a lower inductance than a round [copper/aluminum] conductor,

Lots of "hand waving" data here. Suggest you take a look at: https://agupubs.onlinelibrary.wiley.com/doi/10.1002/2017JD027016 There is also an extensive study buried in the "Journal of the Franklin

The higher in frequency you go, the more you need ribbon conductors to deal with monsterous currents line lightning strikes. The reactance does not change. Its reactance can easily be calculated

A interesting summary on using cat6 for low noise rx antenna feedlines. *** https://www.youtube.com/watch?v=i44PU8NJf1M *** I have used a single VE6WZ transimpedance amplifier

Hi Bernard, If you still need spice model, you will find "2SK932-23 Model_Rev0" at https://www.onsemi.jp/products/discrete-power-modules/jfets/2sk932#technical-documentation but sri for

Back when I was working with several radio sites, we were using 2" wide flat copper ground strap; because it was supposedly lower impedance than wire ground conductors. [Lightening as you know is NOT

The ferrite used all came from digikey and is a product of fairite corporation. The coil I used has 3 rod assemblies inside. 1 assembly is made of 1.02 inch diameter beads 1.125 inches long. The other

john Go look at Lz1aq website.. much info on there re loop antenna fabrication..plus much much more. Chavdar is a well know and respected wealth of knowledge.. ie on here one can buy from USA his

Hi Just DONT buy on ebay/ preferred vendor from China! ( even if cheap!) Always more expensive but as above..mouser etc. Simon g0zen

thanks for all the replies everyone. Much appreciated. I’ve been ruminating on the connection point. Supporting and fabricating the loop is the easy part. I don’t think having a squared off end of

I stocked up from Fair-Rite at Mouser about a year ago. Digikey also had them as well as several other companies. Gedas, W8BYA EN70JT Light travels faster than sound..... This is why some people

Quick Question. Who do you purchase your 77 and 75 mix from? Fred N4CLA [email protected]> wrote:

Wow. From where did you got that ferrite? 73, Jukka

I use 77mix for my AM BCB filters. I have to get some 75mix for the usb cables to my Airspy for VLF. I used my giant ferrite VLF loopstick in the aftermath of Helene here in Asheville for some

Thanks!

If you remember when MFJ first was selling its transmit loops, the short period when these were contemporaneous with the AEA Isoloop, MFJ touted that their loop was not a flat element, was instead