5 May 2023

10m QRP FT8 (Friday)

My intermittent coax plug has been fixed and now on 10m FT8 with the FT817ND at 2.5W. So far spotted by just 1 G station, but spotting stations across the world on RX.

UPDATE 0944z: 12 stations have spotted my 2.5W  and 67 stations spotted here.

UPDATE 1000z: Thunder stopped play!  All disconnected. See https://sites.google.com/view/g3xbm4/home/other-amateur-radio/lightning-maps .

160m FT8 QRP last evening

160m FT8 QRP TX 

160m FT8 RX 

Last evening I went on 160m FT8 with 2.5W and the earth-electrode "antenna" in the ground. As the evening before, results were good. 

Sunspots - Friday May 5th 2023

 Solar flux is 162 and the SSN 139. A=6 and K=1. 

4 May 2023

10m QRP FT8 (Thursday)

Very late in the day, I decided to switch from 8m to 10m FT8. Just a couple of spots of my 2.5W from the FT817ND. I also discovered that my 10m coax antenna plug is intermittent. This needs investigation. Quite a few stations spotted on RX.

UPDATE 1803z:  4 spots of my 2.5W with the furthermost 9G5AF (5189km).

Rallies on Sunday

These rallies have been notified to me. I do not have contact details, but advise checking with the organisers first if intending to travel a long way.

Sunday May 7th - Dartmoor Radio Rally, Yelverton, PL20 6AL

Sunday May 7th - Hamfest Rally,Thorpe Camp Visitor's Centre. No postcode given.

Spring - NOT amateur radio


The green in spring always looks fresh whereas later it looks tired. This horse chestnut tree looks splendid. 

8m QRP FT8 TX (Thursday)

Earlier. I got my first 8m FT8 report for a while. This was Martin's SDR at WESSEXSDR (265km) at a respectable - 17dB S/N. 

They have arrived - NOT amateur radio


The swifts are back. This morning 2 were spotted. I have yet to hear them screaming in feeding parties, but the cycle that has been around for thousands of years continues. 

See https://www.rspb.org.uk/birds-and-wildlife/wildlife-guides/bird-a-z/swift/ .

160m QRP FT8 last evening

Spots of my QRP FT8 on 160m
with the earth-electrode "antenna"
in the ground last evening

Using just 2.5W FT8 on 160m last evening to the earth-electrode "antenna" in the ground 14 spots of me (as the map shows) were obtained. It works remarkably well with the FT817ND with just the 3C90 transformer and no ATU. I guess the SWR is between 2:1 and 3:1.

Sporadic E (Es)


We are just entering the Es season in the northern hemisphere. DX out to about 1500km with low power is common on the lower VHF bands. The photo shows my V2000 omni in 2020. On 6m even QRP SSB is enough to work DX. 

Sunspots - Thursday May 4th 2023

Solar flux is 156 and the SSN 143. A=4 and K=1. 

3 May 2023

160m QRP FT8 (Wednesday)

It is not dark here for about 90 minutes, but my 2.5W to the earth-electrode "antenna" in the ground has been spotted on 2 SDR's in the west country the furthermost WESSEXSDR (265km).


UPDATE 2108z:
11 stations have spotted my 2.5W to the earth-electrode "antenna" in the ground on 160m FT8.

Still waiting - NOT amateur radio

Today, for only the second time, we had a cup of tea in the garden. Despite looking (and listening) for about a hour, no swifts seen or heard. This is a bit early. Hopefully within a few weeks we will hear the screams, look up and see some. Numbers are meant to be down, although locally they seemed as numerous.

Laburnum - NOT amateur radio


 This is now out. Spring is here! This was out where we vote tomorrow.

8m QRP FT8 (Wednesday)

 For the last couple of hours I have been on 8m QRP FT8 again on 40.680 MHz. No spots.

UPDATE 1641z:  No spots.

Plans for today (Wednesday)

After returning from shopping, I plan to return to tests on 40.680 MHz FT8. 

Later this summer, I want to give 8m WSPR a go, probably at 1W. I am hopeful that more Europeans will give 8m WSPR a go using ISM rules. In many countries a licence is not needed under ISM rules.  

On 8m FT8 and WSPR at the same time I can only go on if I am RX only on FT8 at the time.

Sunspots - Wednesday May 3rd 2023

 Solar flux is 157 and the SSN 134.  A=9 and K=0.

2 May 2023

10m inter-G?

Many years ago, the RSGB organised some 10m activity contests in the evenings. This must have been 40 years ago at a guess. 

Despite using 10W pep and a dipole, I could work stations 150km away consistently. With more power and a small beam, even better results would be possible. These days we have digital modes that can work with very weak signals indeed, so spanning such distances with very simple antennas like dipoles and CB whips should be even easier.

At the moment 10m is a great DX band, but at sunspot minimum, people often desert it, sadly. What I am advocating is that more of us should stick with it in the quieter years when it behaves more like a VHF band.

As a final reminder, Es is good in the Es season at any point in the solar cycle. DX has been worked from the UK by F2 N-S with QRP SSB even when the sunspot count was zero at solar minimum. People often desert it when it is a lack of activity and not poor conditions. I hope FT8 will help at such times.

10m QRP FT8 (Tuesday)

Since about 0800z, I have been on 10m QRP FT8 with the tiny QDX. Just 3 inter-G spots of me so far. It is a bit early.

UPDATE 0859z: TA9J (3463km) has also spotted me by what I think is F2 propagation. Now 5 Gs have spotted me. No Es apparent.


UPDATE 1510z: 
29 spots of me today with the furthermost FR4NB/QRP (9722km) on Reunion Is in the Indian Ocean.

2m activity contest (UKAC)

The May leg of the RSGB organised activity contest on 2m is tonight starting at 1900z. Activity levels are usually good with portables on hilltops. 

It lasts (I think) for 2.5  hours although with my QRP, omni antenna and poor voice I am usually on less than an hour. 

This really does not feel like a contest. It is more a way to stimulate activity and work squares.