12 Apr 2021

1.095kHz earth-mode 10 years ago


One of my Facebook memories today was this photo of my VLF experiments with earth-mode communications. I was using a 5W beacon and was a very solid signal at 4.5km as the photo shows. As I recall signals tended to be better as frequency was reduced. 

17m FT8 RX

At 1335z I QSYed to 17m FT8 RX using the FT817ND and the improved indoor loop.

UPDATE 1431z:  23 stations in 4 continents spotted so far.

Muntjac deer - NOT amateur radio

This young one had its nose against our garden room door. 

If open, I am sure it would have come in out of curiosity. It disappeared into the bushes.

Mars helicopter - NOT amateur radio

Southgate News has a report about the helicopter on the latest NASA Mars lander.

See http://www.southgatearc.org/news/2021/april/mars-helicopter-flight-delayed-to-no-earlier-than-april-14.htm#.YHQk6SjYrrc

See https://mars.nasa.gov/technology/helicopter .

Snow! - NOT amateur radio

Our back lawn earlier
Last week it was mid 20s C and "shirt sleeve" weather.  

What did we get this morning? Snow! April can certainly be changeable! Most had gone within a few hours.

160m FT8 QRP

Stations spotting my
QRP on 160m FT8
In the last half day my 160m FT8 QRP with 2.5W to the earth-electrode "antenna" in the ground has been spotted by 36 stations across Europe with the greatest on TX a spot by IK8FJW (1653km). 

On RX both North and South America spotted on 160m FT8 as well as Asiatic Russia.

10m FT8 RX

With the improved loop, I am on 10m FT8 RX at the moment. I must like punishment! It would not surprise me if I get no spots all day. Certainly, the morning was poor with not a single spot.

UPDATE 1333z:  No spots.

Think I shall QSY to 17m FT8 RX.

Sunspots - Monday April 12th 2021

 Solar flux is 73 and the SSN 0. A=6 and K=1.

11 Apr 2021

160m FT8 QRP (Sunday)

At about 1915z, I QSYed to 160m FT8 QRP with 2.5W and the earth-electrode "antenna" in the ground.

UPDATE 1923z:  Already my QRP has been spotted by 3 stations on TX and I have spotted 14 stations on RX.

Stations spotting
my 160m FT8
QRP this evening
UPDATE 2132z:  23 stations have spotted my QRP on 160m FT8 TX this evening.  on 160m FT8 QRP with the furthermost DL0PF-RP (1016km).

20m FT8 RX

I have just switched to 20m FT8 QRP with 2.5W QRP and the (improved) indoor loop. I was very briefly on TX, but mostly on 20m FT8 RX. 

Furthermost on 20m FT8 RX was W7RIS (7963km) on the west coast of the USA in Oregon.  In all, 107 stations spotted on RX.

UPDATE 1904z: 251 stations spotted. Furthermost is ZS6LKF (9089km).