Peter M0LNB (@rfconsultantuk) 's Twitter Profile
Peter M0LNB

@rfconsultantuk

Doctoral RF engineering and satellite communications consultant for 35 years, now retired. Licensed since 2005. Main interests are EME, satellites and SWL.

ID: 1731303753263849472

calendar_today03-12-2023 13:26:24

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441 Followers

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Peter M0LNB (@rfconsultantuk) 's Twitter Profile Photo

5 more QSO off the moon from this contraption in the garden! 2 initials: PA0TBR -17 -19 and IZ8GGF -17 -18 Good that it's all still working ok.

5 more QSO off the moon from this contraption in the garden!

2 initials: PA0TBR -17 -19 and IZ8GGF -17 -18

Good that it's all still working ok.
Peter M0LNB (@rfconsultantuk) 's Twitter Profile Photo

I'm adding a SWL table to my website! Will be adding stations I like all the time. rfconsult.uk/hf/#hf-1 I can tell you're all excited by that, lol

Peter M0LNB (@rfconsultantuk) 's Twitter Profile Photo

Another 7 eme QSO tonight. Including my 1st Yagi2Yagi with OE3JPC! He has 2x56el with 400W at Ant I have 4x36el with 200W at Ant Link closed with -24 -24 SNR Wow 🤩

Peter M0LNB (@rfconsultantuk) 's Twitter Profile Photo

Moon at 30 deg elevation West with house in antenna HPBW, limiting wsjtx 60c to -25dB SNR. 20 deg elevation possible East for Oz and NZ. Best decode at my qth anywhere so far is -28. I need to optimise for -32dB

Moon at 30 deg elevation West with house in antenna HPBW, limiting wsjtx 60c to -25dB SNR.  20 deg elevation possible East for Oz and NZ.  

Best decode at my qth anywhere so far is -28.  I need to optimise for -32dB
Peter M0LNB (@rfconsultantuk) 's Twitter Profile Photo

Wet ice dramatically changes the dielectric environment Wet ice is a mix of: •Ice (εr ≈ 3–4) •Liquid water (εr ≈ 80, lossy) When this coats a Yagi’s elements, the antenna is no longer operating in air (εr ≈ 1). De-tunes antenna, return loss worse.