K1 transceiver

Years ago I built and used an Elecraft K1 CW transceiver. A few years ago it was sold. For its intended purpose, it worked well.

These days I prefer to use digital modes like FT8 and WSPR.

There are better products available nowadays from Elecraft such as the KX2 and KX3 QRP transceivers. In the UK these are expensive especially if you buy the extras as well. They are very good rigs though, although I'd think twice about field use in rain.

See http://www.elecraft.com/
See also https://sites.google.com/site/g3xbmqrp3/hf/k1

A high sensitivity MOSFET crystal set

Firstly, I should say I have not built this, but it looks interesting.

See http://www.arrl.org/files/file/Technology/tis/info/pdf/culter.pdf

Sub 9kHz amateur radio

At one time, I was fit and well and did quite a bit at VLF.  Apart from receiving several EU stations at VLF, I used earth-mode and could detect my own signals at 6km. Further would have been possible. 

Others, using radiated signals, have covered some quite remarkable distances from amateur gardens with modest powers. At one time people said we'd be lucky to get "over the garden fence".  How very wrong they were!

I still maintain the Sub-9kHz Amateur Radio website. Quite a bit is happening and, contrary to popular belief, big antennas are not needed for VLF RX. What is needed on TX are very stable signals and very long times. Luckily, free software allows VLF MSK commercial stations to be used as stable signals to achieve lock.

10m FT8 RX

We are nearing the Es season in the northern hemisphere.

Today, I am monitoring 10m FT8 RX, but as yet no spots. Usually, I spot the odd UK station, the odd European and sometimes South America, although openings to this part of the world are usually in the evening at this time of the year on 10m in the UK.

UPDATE 1832z: Still no spots on 10m FT8 so far today. At the moment things look dire on 10m. Usually by now I have copied something, but as yet nothing at all today! I even went to check the antenna was connected! I shall continue to monitor for a few hours, but I am not very hopeful. Later, I may try 472kHz (630m) WSPR RX.

UPDATE 1924z: Still no DX today. G0PQO (IO92) was copied this afternoon but this spot was not uploaded to PSKreporter. I'll give it another hour then QSY to MF RX.

Mental health issues - NOT amateur radio

This came in from Molly. You may find the links helpful.

"Hi,

Having had personal experience with addiction, I’ve seen how important it is to address mental health issues before they take control. I truly believe it’s lifesaving to nurture our innermost selves before mental health conditions become debilitating, whether it’s something as common as stress and anger or something as complex as depression or suicidal thoughts.

As part of my work with Recovery Hope, I’m sending you some articles that offer insight and support for those who may be struggling. I hope you’ll consider adding these to your site on this page or one like it (http://g3xbm-qrp.blogspot.com/2010_05_01_archive.html​). Based on the information you have there, it seems you’re just as aware of how important it is for people to care for their emotional wellbeing.

A Checklist for Parents with Children with Mental Health Problems

For Teachers: Children’s Mental Health Disorder Fact Sheet for the Classroom

Promoting Mental Health at Home: How to Design the Perfect Meditation Room

Healthy Eating and Depression: How Diet May Help Protect Your Mental Health

5 Ways to Use Feng Shui in Your Home Design

Drug Abuse and Addiction: Recognizing the Signs and Symptoms of Drug Addiction

Anger Management and Addiction: How to Take Charge of Anger Issues in Sobriety

Elderly Mental Health: How to Help Your Senior

Coping with the Loss of a Loved One

I truly thank you in advance for your support! If you’re open to working with me so that I can write an article for you that further explores the importance of mental health on our overall wellness, please let me know. Since this is a subject so close to me, there is no charge. (If you don’t want me to contact you again, please let me know that as well.)

Thanks,

Molly

Molly Anderson​

Sunspots - Monday April 16th 2018

Solar flux is 69 today, but the sunspot number is zero yet again. A=6 and K=1.

Exhaustion: stroke or old age? - NOT amateur radio

Later this year I turn 70. In 2013 I had a stroke. At the moment 15 minutes of physical work leaves me totally drained. I am unsure if this is as a result of my stroke or just me getting older. Either way, it is no fun. In many ways I feel so much older than, say, 5 years ago. I try to remain positive, but it is hard.

Canada and 5MHz

The new frequency allocation table for Canada has been published reports Southgate News. As yet, Canadian amateurs are not allowed to use the new 15kHz wide WRC 5MHz allocation.

See http://southgatearc.org/news/2018/april/canada-new-100w-ham-radio-5-mhz-allocation.htm#.WtN4CkxFzIU

Personally, I think the sooner we all have a harmonised allocation at 60m the better. Additional channels would be a bonus. As a QRPer, I'd settle for 5W too!

137kHz Transverter

One of my videos describes my transverter for 137kHz, a band on which I had no suitable antennas. Best DX was a WSPR spot by G8HUH at 250km. This is also on my main website at www.g3xbm.co.uk  where you can also find a better quality schematic.

In the end this was converted into a RX-TX transverter, although the FT817 was very deaf on 137kHz!

See https://www.youtube.com/watch?v=QHGLkA25MQA

Fallen tree - NOT amateur radio

A few days ago we went for a walk at Dalham. The photo shows our "London" grandchildren enjoying a fallen tree on the walk.

G3XBM video channel

A reminder that quite a few of my projects are shown in YouTube videos on my channel G3XBM. Many of my projects can be seen here in videos made over the years. Most are amateur radio related, but a few are not.

2m FT8 again

After a brief TX period just before breakfast with best DX a spot by G1IDZ (184km), although I was also copied in France, I am now on 2m FT8 RX. Again, I am using 2.5W and my big-wheel omnidirectional antenna. So far, 17 unique stations spotted in 4 countries (0930z).

UPDATE 1145z: Now 35 uniques in 5 countries on 2m FT8 RX today so far.

Stations spotted by 1452z

today on 2m FT8 RX

UPDATE 1452z: Currently 50 uniques in 6 countries on 2m FT8 RX today.

UPDATE 1820z: Now 66 uniques in 6 countries spotted on 2m FT8 RX today.

UPDATE 1840z: Now 73 uniques in 9 countries today on 2m FT8 RX. 2m!!!

UPDATE 2128z: Now QRT.  Best DX today on 2m FT8 RX was DJ6GK (607km) in Hesse, Germany.

Sunspots - Sunday April 15th 2018

Solar flux is 69 and the sunspot number 11.  A=6 and K=2.

Amazon Prime - NOT amateur radio

Both my wife and I have been "caught" by Amazon Prime. Neither of us wanted this service and we both cancelled immediately.

As far as I can tell, I did everything possible to avoid signing up, yet still found I had joined! To this day, I do not understand how.

Amazon must be employing some very dodgy methods to make you sign up. Unless you manually opt out they will charge your card every month. To my mind "this is not cricket" as they say here. If you want to sign up then make this clear and simple. If you do not want to sign up then it should not allow you to sign up by mistake.

Money to burn?

On the Southgate News page it says you can now buy a companion loudspeaker for the ICOM IC-7610 transceiver. All you need, allegedly, is a spare £192!! For this price you can equip an amateur radio station capable of worldwide QSOs. To me this is silly money for what is after all just a LS. I guess each to his own.

See http://southgatearc.org/news/2018/april/new-matching-sp-41-speaker-for-the-ic-7610.htm#.WtJEuUxFzIU

Red-legged partridge - NOT amateur radio

After several months without seeing any, these handsome birds have returned to our Close. Earlier this week one nearly fed from my hand, coming about 25cms (1 foot) from my hand, curious.

2m FT8 RX

Since just before breakfast I have been monitoring 2m FT8 RX again. Already (0900z) 24 unique stations spotted in 6 countries with best DX on RX DK2DTF (644km).

UPDATE 1222z:  Now 37 uniques in 7 countries spotted.

UPDATE 1300z: Now 40 uniques in 8 countries.

UPDATE 1903z: Now 56 uniques in 8 countries in the last 12 hours.

UPDATE 2116z: 59 uniques in 8 countries today on 2m FT8 RX. Now time to go QRT.

Sunspots - Saturday April 14th 2018

Solar flux is 69 today and the sunspot number still 13.  A=9 and K=1.

Virus? - NOT amateur radio

Whenever I open the page to add things to my blog currently, my Avast comes up with "threat detected".  I suspect one of the ads on my edit page currently contains some sort of malware. I am pretty sure it is not anything I have placed on the blog. I only hope it is not there on the pages visitors see.

Anyway, it is good discipline to have anti-virus protection on your PC. If you are not protected, I recommend Avast which has good scores and is available free. In the case of Windows Defender, it uses Avast as the virus protection on my own PC.

These days, every PC user must have virus protection. Without it, you are acting irresponsibly and foolishly, endangering others as well as yourself. Get protected now.

House quiet again - NOT amateur radio

Our "London" grandchildren have gone home and the house is quiet again. We have had them since Monday and visitors for over a week, leaving me exhausted. We love having the grandchildren, but they do tire me!

Rallies

15 APRIL 2018 : WEST LONDON RADIO & ELECTRONICS SHOW (Kempton Rally)

Kempton Park Racecourse, Staines Road East, Sunbury on Thames, TW16 5AQ. There will be a talk in station and on site car parking is free. Doors open at 10am with disable d visitors gaining access 10 minutes earlier. There will be trade stations, a Bring & Buy and special interest groups. Other attractions are lectures, a raffle and catering on site. Details from Paul, M0CJX on 0845 165 0351, info@radiofairs.co.uk. www.radiofairs.co.uk.


15 APRIL 2018 : YEOVIL ARC QRP CONVENTION

Digby Hall, Sherborne, Dorset DT9 3AA. Doors open 9.30am to 3pm. Admission £3, regrettably only guide dogs can be admitted. There will be traders, a Bring & Buy as well as club stands. A programme of talks will take place, details on the website. Supported by RSGB, RAFARS & BYLARA [http://yeovil-arc.com/QRPconvention.php].


A list of rallies can be found at http://rsgb.org/main/news/rallies/

2m FT8 RX

So far this morning on 2m FT8 RX 18 unique stations in 6 countries in the last 6 hours.

UPDATE 1422z: Now 26 unique stations in 7 countries today.

UPDATE 2144z: Now 63 unique stations in 7 countries today.

OFCOM auction results published

Now, don't get too excited as it is not good for your heart! I know how much you enjoy news about OFCOM, just like me!

OFCOM has now published the results of its auction of microwave spectrum. Yes, I know you have been anxiously awaiting this with bated breath, but now the wait is over! You can breath again.  😎

See http://ofcom.cmail19.com/t/ViewEmail/i/264F38AB38B02CEC2540EF23F30FEDED/59D1BD3EA2F08127C67FD2F38AC4859C

Heathkit HW8 QRP Transceiver

Some years ago, I owned one of these rigs and worked some impressive DX with it. It was a joy to use. I think it was sold when I bought a Yaesu transceiver many years ago. It went back to its original owner.

See https://sites.google.com/site/g3xbmqrp3/hf/hw8

Sunspots (yes real sunspots!) - Friday April 13th 2018

Solar flux is 69 today and the sunspot number is 13 i.e. not zero for a change! A=9 and K=2.

Mildenhall museum again - NOT amateur radio

Another view of our visit to Mildenhall Museum a few days ago with our grandchildren.

FETer very simple transceiver

It seems unbelievable that this ultra-simple design (14 parts) is 10 years old. It was a simpler version of a W2AW design for 40m. I put mine on 80m CW. It certainly works!

See https://sites.google.com/site/g3xbmqrp3/hf/feter-80m-qrpp-cw-transceiver

2m FT8

After a brief TX period (spotted locally) I am again on 2m FT8 RX. So far, 10 uniques spotted in 4 countries.

Best DX so far today on 2m FT8 RX is DK2DTF (644km).


UPDATE 1310z: The photo shows the stations spotted on 2m FT8 RX so far today.

Sunspots - Thursday April 12th 2018

Solar flux is 68 today yet the sunspot number is stubbornly zero again. A=14 and K=2.

Crystals sets

A great deal of fun can be had with the simplest of receivers. I had some great fun DXing with a shortwave crystal set. These days, there are fewer SW broadcasters sending in English, so IDing is harder, but not impossible.

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

10m FT8 RX

So far today, just one spot on 10m FT8 RX of DL8FCK (627km) in Hesse in Germany.

UPDATE 1930z: Just one G spot in addition and no DX as yet today.

UPDATE 2145z: Now QRT.

Worse spots to read? - NOT amateur radio

This was our granddaughter earlier reading on our windowsill. There are worse backdrops!

I think this is a book she brought from home.

Sunspots - Wednesday April 11th 2018

Solar flux is 68 today and the sunspot number remains zero. A=20 and K=2.

10m FT8 RX

As well as a couple of stations in Rio (Brazil) I also spotted VP8LP, although these spots of the Falklands did not upload to PSKreporter.  It seems that 10m regularly opens to South America, despite the very poor solar conditions. It is definitely worth keeping a watch on 10m FT8. Quite a few EU spots plus 3 in the Canary Is.

70cm (432MHz) UKAC RSGB activity contest

Tonight I expected to miss this contest as we have grandchildren staying. I managed to snatch about 10 minutes and worked a couple of stations with G4CLA (105km) as the best DX. Seeing I only have 5W RF and a 2 metre halo, I was quite pleased.

Museum visit - NOT amateur radio

It is funny, but our grandchildren seem to love museums! Today we had to revisit the small (free) museum at Mildenhall, Suffolk. We also had a request to visit the church there again.

Yet more OFCOM rubbish (my view)

Now we are told that the next stage in their auction of microwave spectrum has been reached. Big deal. Most of us are just plain bored.

You can also read this in Welsh. It is a good job green people with one leg living in Stoke-On-Trent don't have their own language or they'd have to employ another person!

See http://ofcom.cmail19.com/t/ViewEmail/i/8B6148651C1AA1D42540EF23F30FEDED/59D1BD3EA2F08127C67FD2F38AC4859C

2m FT8

After a quick CQ in which my 5W to an omnidirectional antenna was received by G0LUJ (279km) I shall be on 2m FT8 RX most of the day. I may try 10m FT8 much later.

As yet,  just a couple of Gs spotted on 2m FT8.

UPDATE 0918z: Now 3 Gs spotted.

UPDATE 0930z: Now one F and DK spotted. Best DX is F6APE (551km).

UPDATE 1148z: Now 24 unique stations in 4 countries spotted today on 2m FT8.  Best DX is DK2DTF (644km).

UPDATE 1605z: Now 45 uniques. Time to QSY to 10m FT8 RX.

The Pixie

This is a classic QRP CW transceiver. Like all simple transceivers it is a compromise. Chinese versions are available at less than the cost of the crystal alone in the UK. The Chinese kit I built was for 40m and worked first time.

The Pixie is a derivative of the Micro-80.

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

Simple Regen Circuit

Regen receivers amaze me. How something so simple can work so well never fails to intrigue me.

I was looking for a photo I took some years ago, but so far I have failed to find it. I still have the RX in a drawer!


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