#MagLoop

Kelvin n0mql EN35ld

@kelvin0mql.mastodon.hams.social.ap.brid.gy

1 month ago

Mix 61 ferrite rod is 4”x0.33”, has approx 60 turns 23AWG primary, & 2 turns 28AWG pickup coil. #NanoVNA gave me a mere 17dB dip on the target frequency. Antenna is taped to East-facing window, about 6’ above grade.

But TONIGHT’s test will be this 8”x0.33” rod. All else is the same, except with 2 rods glued together, reinforced with heat shrink, there’s more “aperture” to take in RF. Got a better match with this longer rod also… got NanoVNA to show my dip at -38dB. So I’m very hopeful about this next test.

Last night’s ferrite #MagLoop antenna test was a success, but barely. Got #WSPR decodes of only 1 station, <700km.

MUCH more detail in the ALT text.

Gary @N8DMT

@n8dmt.mastodon.radio.ap.brid.gy

10 months ago

@quantensalat Works fine with 10W on CW (40m and up). Here on FT-8 can work stations as long as RX level is -10 or higher. Upper bands work better than lower ones. Do not use SSB here — but CW is pretty much work anyone you can hear (reasonably above the noise) with the IC-705 cranking at 13.8V […]