SHOW NOTES QST Article on Tony’s Polar Explorer prototype radio https://www.arrl.org/files/file/QEX_Next_Issue/Mar-Apr2017/MBF.pdf Flex Radio Aurora 500 Watt Radio https://www.flexradio.com/aurora/?srsltid=AfmBOop2gOFEt-egQitKYx5NOtaK5NJhY2HIMdsPZ5pYJBoJAnAi5oeA Sierra Radio Station Controller video with DX Engineering www.youtube.com/watch?v=FDPrWKNuHrg&t=1s Youtube video of K3CT and the Text To Speech stuff https://youtu.be/fK-IP0KLHGI N1MM Text To Speech https://n1mmwp.hamdocs.com/mmfiles/text-to-speech-modeling-instructions/ Vince’s experimentation with elevated counterpoise wire https://qrper.com/2025/10/hamilton-and-scourge-one-last-activation-in-ontario/ Vince’s paring down of his QRP kit for airline travel - what’s your KMI? https://qrper.com/2025/10/whats-your-kit-mass-index/ PackTenna interview with DX Engineering https://www.youtube.com/watch?v=Cpe_yx821vw
4 Comments
r.
10/22/2025 10:25:32
I so not see the referencw to the lora ground stations mwntionned sueing the show (U Cornell solar sail ?)
Bill Cody (K3CDY)
10/29/2025 12:44:48
As a Flex 8400 owner, I was keenly interested in this podcast. It's one of the few I've replayed, and now I finally grasp the concept of Polar Modulation. Nicely done.
Rob (N7RLV)
11/6/2025 13:10:15
Wonderful discussion - thank you! I have been using the QMX for a couple of months now with remarkable results at 4 - 5 watts. The CESSB feature, that Flex also uses, seems to make a huge difference for QRP DX voice. Nothing like an extra 3 or 4 dB. The Aurora will be on par with a kilowatt that lacks CESSB.
Brian Whitaker
12/4/2025 01:43:49
This was excellent and informative! I’m in the consumer electronics business as an RF engineer and am very appreciative of the easy to grasp description of polar modulation here. It turns out the scheme is used in many mobile phones too… Leave a Reply. |
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