28 May 2024

10m 500uW WSPR

 


My 500uW 10m WSPR was spotted by DK6UG (633km) late yesterday. This looks like a patch of Es.

UPDATE 0834z: synced to internet time, but no spots this morning.

UPDATE 1547z: Yet again, my 500uW 10m WSPR was spotted in Scotland. I have lost count of how many countries my 500uW WSPR have been spotted in, but it is a lot.

Double rainbow - NOT amateur radio

 


This was our close last evening. On the whole it was a dry day with just some rain after teatime.

160m QRP FT8 overnight with the earth-electrodes in the ground

It works!  

Connecting the FT817ND to the earth-electrode "antenna" in the ground the match via the transformer used on 630m remained good, so I left things unchanged. It was pretty effective on the setting below maximum on the FT817ND. The map shows the spots I got.

Sunspots - Tuesday May 28th

 Solar flux is 170 and the SSN 116.   A=8 and K=2.

27 May 2024

Recent events in the UK - NOT amateur radio

Several recent events have severely dented my confidence in "the deep state". These include the contaminated blood scandal, Grenfell Tower and the Post Office scandal.  Time and again, we hear of corruption in high places. It makes me sick.

It would be good if those in high places operated at all times with high integrity and honesty. It would appear many cannot be trusted sadly.

160m QRP FT8 tonight?

Overnight, I may give 160m FT8 a go with my earth-electrode "antenna" in the ground. This assumes the match is acceptable. 

For a first try I shall probably use 2.5W. It is unlikely I shall be on until it gets dark. I don't think I have tried 160m FT8.

UPDATE 1656z:  The match is good and I am on 160m with 2.5W FT8.  No spots on RX or TX.

UPDATE 1831z:   One UK spot of me by 2E0INH (60km).

UPDATE 1900z:  3 UK spots of me so far this evening. Still very much light. Furthermost is G4BRK (133km). This is quite reasonable with 2.5W FT8.

UPDATE 2039z:  6 spots of me (see map).

UPDATE 2154z : 11 spots of me with 2 spots from Norway.

Wicken Fen walk - NOT amateur radio

 

This morning, we did a very nice walk around part of Wicken Fen.

630m QRPP WSPR overnight

Well, either the internet was not working here from the shack or there was an issue with WSPRnet. Although I was spotting DX on 630m WSPR and was sending all night, no spots at all. I shall probably try again tonight.

6m 10mW FT8 (Monday)

My QRPP 6m FT8 has been on since about 0815z. No spots.

UPDATE 1601z:
  32 spots of my 6m 10mW FT8 (see map). This proves that very little power is needed when Es is good.

Sunspots - Monday May 27th

 Solar flux is 156 and the SSN 148. A=10 and K=1.

26 May 2024

Is there a problem with WSPRnet?

 At the moment I am on 630m WSPR with my usual 10mW ERP. I am seeing no spots on RX or TX. This could be that I cannot connect to the internet or there’s a problem with WSPRnet. I shall leave it on overnight.

Distant thunder - NOT amateur radio

Between the showers, we were trying to do some gardening. 

The photo (yet again!) is of the windmill next door with storm clouds behind just now.

Low cost 70cm QRPP modules

Before anyone tells me I know Baonfeng and Quansheng handhelds are available at very low cost, but I wonder if any experimenters are experimenting with low cost modules designed to send digital signals at short range?  

Many are available on Amazon.

500uW 10m WSPR (Sunday)

Quite surprised to see my 500uW QRPP 10m WSPR had been spotted this morning by GM4WJA (624km). I suspect this is Es as I have been spotted in N.Ireland when I was running just 10mW FT8 on 6m.

6m 10mW FT8 (Sunday)

My 10mW 6m FT8 to the V2000 vertical omni antenna is on, but no spots at 0858z. 

UPDATE 0950z:  Spotted by GI0OTC (560km) in Northern Ireland. I suspect this is Es as I have also been spotted running just 500uW in Scotland on 10m WSPR.

UPDATE 1459z: No more spots of me on 10mW 6m FT8 surprisingly. No further Es reports of my QRPP. Perhaps later?

UPDATE 1735z: Some Es now. 4 spots of my 10mW 6m FT8 so far.

Es (Sunday)

At the moment Es looks quite promising in Eastern Europe. Let's hope this spreads west.

See https://www.tvcomm.co.uk/g7izu/radio-propagation-maps/europe-sporadic-e/ .

QMX+ from QRP Labs

Yesterday evening I heard that QRP Labs had received my payment, although I do not know what the delivery date will be for my QMX+.

See https://qrp-labs.com/qmxp.html .

Near where I come from - NOT amateur radio

This is Blackpool Sands in Devon (not THAT Blackpool!!). It’s near where I come from in South Devon. 

It is a private beach with restricted access.

6m 10mW FT8 overnight

 Although I (accidentally) left my 6m QRPP on overnight, no spots.

Sunspots - Sunday May 26th

 Solar flux is 152 and the SSN 106. A=6 and K=1.

25 May 2024

POTA with the Elecraft KH1

In the USA POTA seems very popular. Amateur Radio Weekly reports on a POTA activation pedestrian portable with the KH1 and a small whip by K4SWL

I don't think the tiny KH1 is available in Europe.

6m 10mW FT8 in the Es season

At the start of the Es season, I started with 10mW 6m WSPR. It worked, so I changed to 6m 10mW FT8, which in theory needs a better S/N to decode.  

Every day, 10mW 6m FT8 has been very successful.  Some reports suggest some margin too. 

I think the fact that FT8 only needs a 15 second TX period compared with 120 seconds for WSPR helps to catch very brief Es openings. 

When I return to 8m, I think I shall try 10mW ERP FT8 instead of WSPR.

23cm activity session

Well over a year ago I bought a 2W 23cms transverter that I intended to use /P in the 23cm activity sessions. As it has been so wet, I have yet to do this. Perhaps later?

I was only going to go out very locally, but on higher ground.

10m 500uW (0.5mW) WSPR (Saturday)

My 500uW 10m QRPP WSPR beacon was turned on at about 0830z.  European Es looks quite promising, so I am hopeful. 

See https://www.tvcomm.co.uk/g7izu/radio-propagation-maps/europe-sporadic-e/ .

UPDATE 1117z:  No spots.

UPDATE 1738z:  Just a single spot of my QRPP by DK6UG (633km). 

6m 10mW FT8 (Saturday)

Es map of Europe
My 10mW 6m QRPP FT8 was turned on at about 0830z. No spots yet.  European Es looks quite hopeful. 

See https://www.tvcomm.co.uk/g7izu/radio-propagation-maps/europe-sporadic-e/ .

UPDATE 1026z:   5 spots of my 10mW 6m FT8.

UPDATE 1731z: 10 stations have spotted me.

630m QRP WSPR overnight


Last night I went on 630m WSPR with my 10mW ERP. In all, 7 stations spotted me, which was better than I was expecting. Best DX was GM3YXM (425km). 

ISWL

Back in the 1960s I first joined the International Short Wave League. 

It produces a magazine called "Monitor" which is probably unique in that it supports both amateur radio (RX and TX) and broadcast band listeners. 
They are currently offering a generous package to attract old members back.

See https://www.iswl.org.uk/ .

Sunspots - May 25th

 Solar flux 163 and the SSN 100. A=9 and K=1.

24 May 2024

630m QRP WSPR (Friday)

My 630m 10mW ERP WSPR from the earth-electrode "antenna" in the ground was turned on at about 2040z.

UPDATE 2115z: 2 stations have spotted me so far this evening.

500uW 10m WSPR (Friday)

My beacon is on and sync'd to internet time.  No spots. 

UPDATE 1839z:   2 spots in Germany of my 500uW WSPR. A reminder that my WSPR beacon is hard programmed to report 0.5W even though with the PA turned off it is actually 500uW only.  I think these German spots were the first in several days.

European Es

At the moment European Es does not look too great although things can quickly change.

See https://www.tvcomm.co.uk/g7izu/radio-propagation-maps/europe-sporadic-e/.

Amazing flowers - NOT amateur radio

 


My wife does not usually buy peonies, but these are looking great at the moment.

10mW 6m FT8 (Friday)

My QRPP 6m FT8 was turned on at about 0750z.

UPDATE 0830z:   No spots.

UPDATE 1523z:  11 spots of me.

630m WSPR overnight


For a change I went on 630m WSPR overnight with my 10mW ERP from the earth electrode “antenna” in the ground. In all, 7 stations spotted me. This was more than I expected. No real DX.

Sunspots - Friday May 24th

 Solar flux is 176 and the SSN 130. A=10 and K=2.

23 May 2024

630m QRP WSPR (Thursday)

For a change, I am again on 630m WSPR with my 10mW ERP from my earth-electrode "antenna" in the ground.

UPDATE 1908z:  So far, just spots by G8OCV/SDR.

Puzzled

At the moment, I remain puzzled: at 10mW I was surprised that FT8 worked at all on 6m. Already today (presumably by Es) 10 stations have spotted me on 6m FT8 at 10mW.  

At 13dB weaker my 10m WSPR at 500uW remains unspotted. I had assumed that signals 13dB weaker might have been harder, but then WSPR works with signals considerably weaker than FT8.

Probably Jan OZ9QV is correct, that the far shorter TX period for FT8 (about 15 seconds) catches very brief Es bursts with FT8 that the 120 seconds needed for WSPR does not decode: the Es cloud has to remain around for longer.  Perhaps Es just bubbles up for very short periods more than we thought. Maybe FT4 would be better still, even though it is even less sensitive?

With FT8 I am pleasantly surprised how well just 10mW works with 6m FT8.  Of course the WSPR signal at 500uW is more likely to be buried in noise too. Overall, I suspect the briefness of FT8 must help more than I was expecting.

Rally this Sunday

 The following rally has been notified to me. As always, I recommend contacting organisers to check details.

Sunday May 26th - Durham and District ARS Radio Rally. Bowburn, DH6 5AT. Contact dadars@gmx.com .

Cambridge bookshops - NOT amateur radio

When I first came to Cambridge in 1970 there were loads of bookshops and it seemed a sleepy academic town. 

Many people nowadays prefer to buy their books online, so there are fewer bookshops left. 

The photo shows one that is still around although it would not surprise me if much of its business is now online. Many of the books they sell are secondhand.

10m 500uW WSPR (Thursday)

 My 10m WSPR QRPP beacon is on again. 

UPDATE 1553z:  No spots.