We all know that 1.7Mhz and lower is OPEN AT NIGHT but how high up is also OPEN AT NIGHT??
I know 160 is (1.8 - 2Mhz) but how much higher??? I know 80 is (3.6 - 4) and 40 right? How high on the analogue spectrum IS OPEN like 1.5Mhz is at night??? |
Very roughly, 10 MHZ.
An easy way to tell currently: Google "SDR Enschede" and download the 24 hour waterfall plot. Note that they are about a half a time zone east of Greenwich. |
Merci buddy...... Its interesting isnt it??
Some nights I have seen 10,11 and 12 meters stay open ALL NIGHT!! The universe is amazing... |
The bands get funky sometimes. Last night I was working a station in New Mexico on 7279 when the noise got crazy and the band dropped out within a couple minutes.
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Yea its really something..............
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Up to 24 MHz it was wide open just before sunset today. I thought the
nearby noise generator was on! ... but the signals were fading a bit, so I looked on the Airspy and there were real signals everywhere ... I've never seen so much old fashioned digital (RTTY etc.) |
I have had nights that 11 meters stayed wide open all night!! (Doesnt happen much though)
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