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Roger G3XBM's (Mainly) Amateur Radio Blog

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10FT8R proper schematic

Posted: 23 May 2021 02:04 AM PDT http://g3xbm-qrp.blogspot.com/2021/05/10ft8r-proper-schematic.html



With many thanks to Jay W5OLF here is a proper schematic of this little 10m
FT8 RX. At one time I had a copy of SPlan so could create schematics
properly although I have no idea where it is now!
I bought the crystal at low cost from 3rd Planet Solar in the USA. They
have good stocks and currently are $1.50 each. I pulled the crystal down
to 14.037MHz. If you can find a low cost source of 14.037MHz crystals, the inductor in series with the crystal probably won't be needed. I needed
enough series inductance with the crystal to pull down 3kHz. Moulded chokes
are probably fine in this application. I used a toroid inductor just
because it was at hand.
Jay is working on a PCB and improvements.

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10m FT8 RX with the tiny indoor loop antenna and the 10FT8R RX

Posted: 23 May 2021 02:51 PM PDT http://g3xbm-qrp.blogspot.com/2021/05/10m-ft8-rx-with-tiny-indoor-loop.html


As of about 0817z I turned on my 10m FT8 RX. As yet, just a spot of a
Polish station. It is now 0836z.
UPDATE 1116z: 96 stations spotted on RX so far today.
UPDATE 1506z: 237 stations spotted on 10m FT8 RX today with the 10FT8R RX.
Most look like Es. See map.
UPDATE 1848z: 343 stations spotted today on 10m FT8 RX with the 10FT8R RX
and the tiny indoor loop.
UPDATE 2150z: 403 stations spotted on 10m FT8 RX today. Now QRT.

See
https://sites.google.com/view/g3xbm4/home/hf-mf-and-lf/homebrew/10ft8r-rx

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Sunspots - Sunday May 23rd 2021

Posted: 22 May 2021 11:56 PM PDT http://g3xbm-qrp.blogspot.com/2021/05/sunspots-sunday-may-23rd-2021.html


Solar flux is 76 and the SSN 19. A=5 and K=2.

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