Trying the Skyfoil kite and more from a generous viewer

Opening a parcel generously sent by John KC0KBG. The main item inside is a kite that I test as a means of supporting a wire for an antenna.
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[@vk2ig]

Peter, that's very nice of John KCØKBG to send you those goodies! Some people who've done experimenting with kite antennas advise that corona discharge can occur with very long wires - but we're talking way longer than the wire length you're using, and much higher kite altitudes. Cheers, Mike VK2IG

[@johnk8091]

What a generous chap ! I look forward to seeing you put up and operate, some kite antennas again - loved your last episodes with kite antennas some years ago. Especially the sprinkler that came on unexpectedly, while you were walking past

[@Panoramix0874]

I think you need to get the kite well above tree tops. You are trying to operate it in "dirty air"which makes the kite wander all over the place.

[@researchandbuild1751]

Those kites are awesome

[@TheLightningStalker]

I need to send you some of your schematics that I redrew in a CAD program.

[@VK9TOM]

Australia Post inspection does that mean customs were interested ?

[@vk2ig]

Yes. They inspect a particular percentage (and type) of international mail.

[@VK9TOM]

Thank you

[@b.griffinarmstrong8677]

Hi Peter, is there any chance you could post the information on that binaural CW receiver? I have been collecting info on them for some time with the hopes of making one, and that looks like an article I haven't seen. 73 Brian KC2NYP

[@vk3ye]

It's from Ham Radio magazine November 1975. What's described is not true binaural reception (in the sense of phase differences like Rick Campbell described in a direct conversion receiver published in QST) but is a method that creates an artificial difference with audio filtering. The filters are just straightforward low pass and high pass op amp low and high pass filters filters with 750 Hz cut offs. Standard circuits as per data sheets etc. Two op amps per channel. Inputs in parallel, outputs to each side of headphones. Discussion on the concept here. elecraft.365791.n2.nabble.com/Re-Binaural-CW-Reception-td390169.html

[@b.griffinarmstrong8677]

@@vk3ye Thank you so much! Love the channel.

[@Dazzwidd]

I thought to myself, after such success with the light pole experiments, the tedium and instability of kites is redundant. I wonder if your generous contributor has seen those videos 😅

[@hfvhf987]

Experimentation is never redundant.

[@vk3ye]

Horses for courses. The kite is still applicable if you've got no tall metal poles eg you're at a location like a beach. Also the tall metal poles were good for 160m (though I suspect still inferior to a kite supported wire) but for bands like 40 & 80m the kite antenna would likely be superior.

[@Dazzwidd]

@@vk3ye Maybe he should have mailed you a 40 meter telescoping aluminum pole

[@BoB4jjjjs]

I thought the whole idea of Ham Radio was to experiment?

[@Dazzwidd]

@@BoB4jjjjs He's done lots of kites antennas. Looks like a pain in the butt to me

[@user-lu9vq2co8c]

Hi from Belarus Peter show more cb

[@vk3ye]

Hi Vropb - CB's not really my thing. Sorry!

[@Dazzwidd]

Are you allowed to transmit on 27 mhz CB in Belarus?