13 Nov 2022

8m FT8 QRP TX and RX (Sunday)

At the moment, I am on 40.680 MHz FT8. My TX period is first.  No spots at 1212z.

UPDATE 1322z:   No spots today.

10m QRP (500mW) WSPR TX (Sunday)

Yet again, I am on 10m QRP WSPR TX with the W5OLF beacon.  At 1208z, 3 unique stations had spotted me.

UPDATE 1324z:  8 spots of my QRP today so far.

UPDATE 1412z: 12 spots of my 500mW WSPR so far today. Several from North America.

UPDATE 1842z:   20 spots of me today.  Now QRT.


8m ISM experiments

It looks like all UK amateurs (anyone actually!) may legally operate beacons on some of the ISM bands without a licence as long as they comply with IR2030.  Callsigns are not needed, but you could use your amateur callsign. 

ISM is not for radio communication, but my reading of the rules suggests beaconing is fine.

In the case of 8m this means 10mW ERP.  My current plan is to test locally initially at the power of my T&I permit (5W) and then repeat the test at 10mW ERP.  I shall probably try WSPR and maybe (if the test is successful) later with FT8. 

If successful, it means many more in the UK could run beacons on 8m, or indeed any permitted ISM band, albiet at low ERP.  10mW ERP at 8m is probably enough to cover the local area. On better Es openings DX copy is possible.

Of course a small amateur allocation at 8m would be better. I cannot understand why in the UK and other administrations they don't permit amateurs access to 8m with just a band of even 5 kHz wide, narrow digital only, secondary, low power, by NoV or similar, strictly no interference. To my mind this is stupid and backward. Such a band would actively encourage research and self training. As it is, in the UK we have to pay annually to do this!!

UPDATE 1824z:  I have emailed members of my local radio club membership list hoping to do some local tests with WSPR. When using 10mW ERP I propose to use the call ISM1, so people know when I am on 10mW ERP WSPR.  FT8 might work, but WSPR works with much weaker signals. Measuring 10mW ERP could be a challenge.

See https://www.rfcafe.com/references/electrical/pwr2volts.htm .See https://www.qsl.net/co8tw/Coax_Calculator.htm .

Sunspots - Sunday November 13th 2022

Solar flux is 138 and the SSN 65.  A=5 and K=1.

12 Nov 2022

8m FT8 (Saturday)

Yet again, I am trying to be spotted in the USA on 8m QRP FT8.  I was spotted there by 2 stations a few days ago.  A transatlantic QSO would be even better.

On RX, ZS6WAB (8931km) has been spotted strongly several times.

UPDATE 1922z:  No spots all day apart from the ZS several times on 8m FT8 RX. Now QRT.

Stroke? - NOT amateur radio

My stroke was in 2013. Apart from my poor voice and always being giddy, most of my body is fine.

I am now even more aware of a couple of things that may have been a result of my stroke or just old age. 

Firstly, names of words rarely automatically look wrong when they are written down.  At one time I could just look at a word and know it was wrong. 

Secondly, I hate driving or being driven. It as if my mind is in overdrive and stressful. All the time I am thinking of potential hazards. It also seems my perception of speed is different. It feels like everything seems faster 30mph feels like 50mph and so on. Perhaps my brain needs more time to process things.

Village scene (Saturday) - NOT amateur radio

The photo shows our village earlier today.

10m 500mW WSPR TX (Saturday)

Later, I hope to go on 8m FT8 QRP. At the moment I am on 10m QRP WSPR TX. So far at 1007z, 7 unique stations spotting me. This is encouraging.

UPDATE 1930z:   28 stations have spotted my 500mW WSPR TX  today.

Sunspots - Saturday November 12th 2022

 Solar flux is 138 and the SSN 57.  A=9 and K=2.

11 Nov 2022

Use of ISM bands in the UK

Just had this response from OFCOM about the use of ISM bands without a licence in the UK:

“The use of licence-exempt apparatus is authorised under exemption regulations, with set emission powers and other criteria.  This is in order for it to be available to all users with minimal risk of disruption or interference.

The limits, including maximum power levels and whether airborne use is permitted, are set out in the UK Interface requirement. If apparatus being used for testing meets the relevant technical criteria and complies with IR 2030, then a licence will not be necessary. Please note that some frequency bands which may be licence-exempt in other countries, such as the USA, may not be so in the UK and only the frequency bands listed are eligible for the exemption of qualifying apparatus.

In some circumstances we may be able to authorise the test or development of non-compliant radio apparatus under an Innovation and Trial (I&T) licence.  However, this generally will be under conditions that are sufficiently remote, shielded or otherwise unlikely to affect other users.  I&T is not intended for the operational use of radio apparatus, such as for the monitoring / control / telemetry of other apparatus, where a licensed or exempt authorisation is already generally available.  Even if it were the radio apparatus itself that is under test or development (in excess of normally permitted limits) we should emphasise that, as described above, it will not be possible to grant an operational permission for its future deployment and use.”

My reading of this is that as long as we meet the interface requirements set out in IR 2030, we are perfectly at liberty to use ISM bands for beacons without a licence.

At 8m, this means a limit of 10mW ERP.  10mW ERP does not sound much but on WSPR or FT8 range might be surprising.

This means anyone in the UK can use 8m (or any other ISM band) for beaconing as long as they fully comply with IR 2030.

I am not a legal expert and I have just shared what OFCOM has written in answer to my question earlier in the week.  In this instance, OFCOM has been very helpful indeed. I should like to thank OFCOM for the prompt reply.