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Today โ€” 14 August 2024Roger G3XBM's (Mainly) Amateur Radio Blog

6m QRP FT8 (Wednesday)

This morning, my 2.5W FT8 to the vertical omni antenna is on 6m.ย  I am wondering, if as on 2m, I am tapping into some sort of troposcatter mode?

As well as the usual G spots I have been spotted in Sicily and Eire. FT8 works with signals even weaker than CW. I guess it could also be aircraft reflection?

UPDATE 1245z: 37 stations have spotted me on 6m FT8 and I have spotted 23. I think this is Es. See map for stations spotting my QRP 6m FT8 today.

UPDATE 1554z: 48 stations have spotted me and I have spotted 29 stations here.

Wildfires - NOT amateur radio

We may argue whether or not this is a short-term blip or a longer-term trend, but the Earth is definitely warmer and the evidence seems to point to the influence ofย  man.ย  Wildfires seem more common, oceans are warming and hurricanes seem more common.

There is no doubt, whatever your views on origin, that moving away from fossil fuels will help in the longer term. We need more, lower cost ways of storing renewables. We need electric cars with better ranges that do not depend on mining rare materials, we need to be able to charge far less frequently, we need electric cars to compete with fossil fuelled cars on price.

My view is that when the time is right, we will all be driving some sort of vehicle that does not depend on fossil fuel. I just hope the turning point arrives sooner than later. Imagine if we all still had film cameras and cathode ray tubes and valves! Things change.

Plans for Wednesday

10m seems pretty good on FT8, so I shall learn little. Maybe I shall give 6m QRP FT8 a go?ย  As the 10m antenna won't be used I could put my 500mW 10m WSPR beacon on.

UPDATE 0806z:ย  10m QRP WSPR beacon and 6m QRP FT8 turned on at about 0800z. 3 Gs have spotted me on 6m FT8, but no spots of my 500mW 10m WSPR.

70cm activity contest yesterday evening

With 10W SSB and a 2m big-wheel omni I usually struggle in the 70cm UKAC (activity contest), but I usually manage a few contacts. Last night was different.ย 

Firstly, the impression I had was there were fewer people on.ย  This could partly be due to the holiday season and people being away.

Also those that were on I could not work. After about 20 minutes I just gave up having worked nobody! Perhaps the combination of higher local noise and fewer people make all the difference to QRP stations like mine.

I should be on the 70cm UKAC next month. We'll see.

Yesterday โ€” 13 August 2024Roger G3XBM's (Mainly) Amateur Radio Blog

10mW?

ย As a keen QRP FT8 operator on 10m, 8m and 6m this thought occurred to me.

If you are copied with a plus value S/N (say at 1W, or even 5W) there is a very good chance you would still be copied at 10mW. Of course, this will depend on the noise floor at the RX and finding a clear frequency.

Many have been surprised that licence free 8m 10mW ERP FT8 has been copied right across Europe. It does not surprise me at all.ย 

What does surprise me is how few have tried this especially in the Es season. Just think, no licence, make up a callsign that WSJT-X and PSKreporter can work with and have fun.ย 

Remember operating under ISM rules is not amateur radio.

10m QRP FT8 (Tuesday)


My 2.5W 10m FT8 was turned on at about 1015z. One RV6 called me and I was immediately worked. So far, my signal has been spotted by 5 stations.

UPDATE 1056z: Spotted by 19 stations so far today.

UPDATE 1101z:ย  Some people are very against working Russian stations. I can remember back in the days of the USSR working loads of Russian stations. I have nothing against the Russian people and the more we can break down barriers the better. One Russian station in Moscow emails me most Christmases.

UPDATE 1302z:ย  ย So far spotted by 53 stations. 237 stations spotted here on 10m FT8 RX.

UPDATE 1830z:ย ย 673 stations have been spotted here and I have been spotted by 151 stations including Reunion Is and South America.

UPDATE 1935z:ย  696 stations copied here today and 153 stations have spotted me.ย ย See map for stations spotting me.ย  Now QRT.

FT290/FT790


Many people around the planet own an FT817 or its successor.ย 

Before the FT817 became ubiquitous there were the 2m FT290 and 70cm FT790. Even today there are FT290s driving transverters.

I never understood why stupid Yaesu never offered a replacement, but it is now far too late as they have "missed the boat". These days there are plenty of rigs. In 2010 the world was their oyster.

Best modes for VHF MS?

Just wondering what the best mode is for MS on VHF?ย  MS signals may be strong, with Doppler, but fleeting.ย ย 

I assume WSPR would be useless as it takes too long. I have no idea about FT8/4 in such conditions. Maybe there is a mode that copes well in these conditions?ย 

Overnight I was on 50.280 MHz MSK144 RX and this certainly is popular in Europe. This was the Perseid meteor shower. 30 stations from Spain and Italy ๐Ÿ‡ฎ๐Ÿ‡น to Sweden were spotted on 6m RX. See map.


Before yesterdayRoger G3XBM's (Mainly) Amateur Radio Blog

MSK144 on 50.280 MHz RX

G8SEI (131km) is the only station so far spotted on 6m this evening on MSK144. Although I am no expert in these matters, I thought I would try monitoring 50.280 MHz (Europe) during the night to see if I manage any copy during the Perseid meteor shower. I suspect G8SEI is being copied by normal tropo and not via MS!

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