21 Sept 2017

Pompeii again - NOT amateur radio

This is another view of Pompeii, Italy taken on our Italian adventure. One of the main gates to the city is in the background. Pompeii was covered when Vesuvius erupted in AD79 to be rediscovered centuries later.

Sunspots - Thursday September 21st 2017

Solar flux is 73 today and the sunspot number 22.  A=10 and K=2.

10m WSPR TX (500mW)

No spots so far, even though my 10m WSPR beacon has been on since about 0615z.

UPDATE 1548z: Still no reports all day.

UPDATE 1807z: There was a brief 10m Es opening to Germany around teatime with my 10m WSPR beacon copied by a couple of stations.

6m FT8 RX

Since before breakfast I have been on 6m FT8 RX. So far, just G3PXT (82km) spotted.

UPDATE 1550z: So far, 4 spots, all Gs.

UPDATE 1810z: 5 stations spotted on 6m FT8 today, all Gs.

Overnight on 630m WSPR RX

630m WSPR RX Uniques Overnight
Yesterday evening and overnight I monitored 630m WSPR RX using the coax feed to my 2m "big wheel" as the antenna on 630m via a ferrite rod ATU and mains ground - nothing at all special, all feeding the FT817. In all, 8 unique stations spotted including Spain and Norway.

20 Sept 2017

QSY to 630m WSPR RX

After a poor day, I have moved to 630m WSPR RX using the coax to my 2m "big-wheel" antenna as the MF antenna matched with a ferrite rod ATU. As yet, no MF spots.

UPDATE 1945z: 2 stations spotted so far on MF with best DX DC0DX (467km).

UPDATE 2111z: Best DX is now LA3EQ (769km).

DST100 receiver

My first "proper" HF receiver was some beast! It was a DST100 which covered from 50kHz to just over 30MHz. It took 2 people to lift it. I think it was originally designed for tanks in WW2. It heard some impressive DX much of it on AM.

See https://sites.google.com/site/g3xbmqrp3/hf/dst100

See also https://www.vintage-radio.net/forum/showthread.php?t=78909&page=2

FT8 rather than WSPR?

Although WSPR can detect signals some 10dB weaker than FT8, I am getting better results on 6m FT8 than 10m WSPR.

Maybe the 15 second periods in FT8 are better suited to aircraft reflections. Maybe my 6m antenna is much better than my 10m one. Maybe my 500mW on 10m is not enough?

Certainly FT8 is becoming very popular nowadays. Although I don't know, will this become the new MS mode?

10m WSPR TX (500mW)

Since before breakfast, I have been on 10m WSPR TX with my little beacon. No spots today so far.

UPDATE 1622z: Still no spots today.

6m FT8 RX

Although I have been on since before breakfast only Gs and GI spotted. Best DX so far is GI4SNA (488km).

UPDATE 1426z: Still no further stations spotted here today.

UPDATE 1621z: Just one additional spot today: G3YDY (65km). No Europeans spotted today.

UPDATE 1630z: Another G spotted. So far today, 6 stations (all in the British Isles) spotted on 6m FT8 today.

UPDATE 1838z: Not uploaded to PSK Reporter Maps (not sure why) were GU and F spots. So far, just British Isles stations spotted today, although with the GU and F spots today's total is 4 countries spotted on 6m.