25 May 2024

Sunspots - May 25th

 Solar flux 163 and the SSN 100. A=9 and K=1.

24 May 2024

630m QRP WSPR (Friday)

My 630m 10mW ERP WSPR from the earth-electrode "antenna" in the ground was turned on at about 2040z.

UPDATE 2115z: 2 stations have spotted me so far this evening.

500uW 10m WSPR (Friday)

My beacon is on and sync'd to internet time.  No spots. 

UPDATE 1839z:   2 spots in Germany of my 500uW WSPR. A reminder that my WSPR beacon is hard programmed to report 0.5W even though with the PA turned off it is actually 500uW only.  I think these German spots were the first in several days.

European Es

At the moment European Es does not look too great although things can quickly change.

See https://www.tvcomm.co.uk/g7izu/radio-propagation-maps/europe-sporadic-e/.

Amazing flowers - NOT amateur radio

 


My wife does not usually buy peonies, but these are looking great at the moment.

10mW 6m FT8 (Friday)

My QRPP 6m FT8 was turned on at about 0750z.

UPDATE 0830z:   No spots.

UPDATE 1523z:  11 spots of me.

630m WSPR overnight


For a change I went on 630m WSPR overnight with my 10mW ERP from the earth electrode “antenna” in the ground. In all, 7 stations spotted me. This was more than I expected. No real DX.

Sunspots - Friday May 24th

 Solar flux is 176 and the SSN 130. A=10 and K=2.

23 May 2024

630m QRP WSPR (Thursday)

For a change, I am again on 630m WSPR with my 10mW ERP from my earth-electrode "antenna" in the ground.

UPDATE 1908z:  So far, just spots by G8OCV/SDR.

Puzzled

At the moment, I remain puzzled: at 10mW I was surprised that FT8 worked at all on 6m. Already today (presumably by Es) 10 stations have spotted me on 6m FT8 at 10mW.  

At 13dB weaker my 10m WSPR at 500uW remains unspotted. I had assumed that signals 13dB weaker might have been harder, but then WSPR works with signals considerably weaker than FT8.

Probably Jan OZ9QV is correct, that the far shorter TX period for FT8 (about 15 seconds) catches very brief Es bursts with FT8 that the 120 seconds needed for WSPR does not decode: the Es cloud has to remain around for longer.  Perhaps Es just bubbles up for very short periods more than we thought. Maybe FT4 would be better still, even though it is even less sensitive?

With FT8 I am pleasantly surprised how well just 10mW works with 6m FT8.  Of course the WSPR signal at 500uW is more likely to be buried in noise too. Overall, I suspect the briefness of FT8 must help more than I was expecting.