18 Sept 2022

10m FT8 RX (Sunday night)

As I totally failed in my quest to copy the EI1KNH beacon, I have QSYed to 10m FT8 RX. I was going to go QRT, but decided to leave things on for a few minutes. The FT8 segment was full of stations from South America. I went QRT then.

4 comments:

Keith said...

Hi Roger -
I have been receiving the EI1KNH beacon’s WSPR transmissions pretty consistently since Saturday morning, having left my receiver running continuously since then. WSPR Net shows nearly 70 spots of the transmissions. I have now changed to FT8 to see if that mode is as successful.

To be honest, I’m at a bit of a loss to understand why I can hear the beacon so consistently with the set-up that I have, particularly in light of the antenna - nominally an end-fed half-wave for 40m which is only about 2 metres above ground and bent in the middle in a horizontal Vee!

Regards,
Keith G0RQQ

Roger G3XBM said...

Yes, that's great. It is odd that I could not detect it at all. I guess your antenna must have some vertical gain in that direction? What strength were you getting it?

Keith said...

I would say on average the signals were in the -22 to -25dB range, occasionally as low as -30 and as high as -19dB.

I did see a couple of spots by G0KTN reported on WSPR Net, and also one by DC1RDB on Friday.

Nothing on FT8 yet….

Regards,
Keith

Keith said...

I have been monitoring the beacon in FT8 mode since this morning, with only one successful decode. In case it was a matter of poor conditions I switched briefly to WSPR, and was rewarded by success. I went back to FT8, but no further decodes.

It would therefore seem that the path between here and the beacon is reasonably reliable, but only if I use WSPR or some other mode that is able to work with extremely low signal levels. Undoubtedly the reliability would improve if I had a better antenna, but that’s not likely to happen in the immediate future.

Regards,
Keith