23 Mar 2015

Internet time servers

I noticed that, by default, my PC synced to internet time only once a week, far too long on an old PC. I have downloaded a package (atomic.exe) that allows you to program any chosen interval and hope now the PC clock will be very regularly updated to internet time. This is essential for WSPR. At the moment it is set to sync every 5 minutes, but once every few hours is probably frequent enough.

I used atomic.exe before on my previous PC for many years. It worked well. A virus scan showed no threats. For now I'll stick with this, although (see comments below) there may be better solutions when the internet may be down, but this is very rare. Virgin Media cable seems very reliable and very fast.

Last USA spot today

On this rather lack lustre day on 10m WSPR it looks like W1VR (6965km) was the last to spot me at 1746z this evening. Only a couple of unique USA stations spotted me all afternoon.

472kHz WSPR

Spots received from 10 unique stations in the last 24 hours on 472kHz WSPR with best DX 306km. As far as I can see,these are stations that have spotted me before. I am still using the earth-electrode "antenna".
Unique 472kHz WSPR spots of my 5mW ERP in last 24 hours

Sunspots and 10m - Monday March 23rd 2015

Sunspot number has risen to 88 and 10m propagation is expected to be "fair" today. The band did open to the USA after lunch with a couple of stations in the USA spotting my 500mW 10m WSPR beacon. W1VR (6965km) at 1446z was the first. With just a couple of stations spotting me this hardly a big opening!

22 Mar 2015

China v. Japan

Up to now, the Japanese "big boys" such as Icom, Kenwood and Yaesu have pretty well dominated the amateur radio market, but the Chinese are on the march. Only last month I bought a 30W pep all mode rig for 10m: this was made in China. See also yesterday's post about 40m Pixie kits at ridiculously low prices.

Be in no doubt: within a few years we will see the amateur radio market flooded with quality products made in China with low prices. At this point, the traditional Japanese brands will die out or be made in China. By the next solar minimum in around 4-5 years time the dynamics of the commercial amateur radio market will be very different. The writing is already on the wall.

Up to now most Chinese amateur products have lacked the finesse of Japanese products but this is rapidly changing. We are fast approaching the time when Chinese made amateur products will be every bit as good as Japanese products, but at very much lower prices.

In the end competition is healthy but this is likely to result in the death nell for all manufacturers not in China. We could well see the death of Ten Tec and Elecraft unless they design in the USA and make in China. The volumes of loyal customers who would be willing to pay USA manufacturing prices would be far too low, sadly.

Of course, we have already seen this with most consumer products and white goods. In the end, China will become too expensive and we will look for slave labour rates elsewhere. Sadly we live in a very odd world. This cannot go on for ever, but we are all complicit. At the moment we are exporting most of our manufacture to China.

Life was, in a way, so much easier when things were made to last, they were made in the UK, we saved up to buy things we really needed, when things were altogether less consumption driven.

10m WSPR - no USA again today?

It looks like a today will be another day with absolutely no 10m WSPR spots from the USA.  As previously when the 10m propagation was "poor" I still seem to be copied (using my 500mW WSPR beacon) by active stations who are a single F2 hop away. It seems the E-W path to the USA suffers when propagation is poor.

UPDATE 1944z:  No USA spots all day. Will go QRT on 10m WSPR soon.

Grandchildren and ducks - NOT amateur radio

For some time now we have had  a pair of tame mallard ducks waddling around our close. Today they were curious when we arrived home and came into the drive and front garden. The photo shows our granddaughter looking at them.  When they realised there was no food on offer they wandered away.

Sunspots and 10m - Sunday March 22nd 2015

Sunspot number is 40 today but all HF looks disturbed. 10m propagation is expected to be "poor".

So far this morning, my 500mW WSPR beacon has been spotted by RK3ABW, LZ1OI, EA8/LA3JJ and G4IKZ. Apart from the local, these all look like single hop F2 propagation. No reports from 4X1RF.

21 Mar 2015

40m Pixie kit at INCREDIBLE price

I bought my 40m Pixie kit for $10 and thought this was a bargain.  Then Andy Cutland sent me this link.
Hi Roger, this is the cheapest i've seen yet. What fantastic value !
Check out this item I found on eBay:
End time: 15 Apr 2015 10:33:10
(Sent from eBay Mobile for Android)
At £3.19 with free shipping there is no way you could make this cheaper in my view. Remember this price includes a crystal, PCB and all the board mounted parts.  This looks identical to mine which works very well. This is a refined Pixie and performance has exceeded expectations. Netting is excellent TX to RX and AM breakthrough very modest. My power out is about 400mW and a 1uV signal level very good on RX. A totally usable 40m CW rig for not much more than a cup of coffee.

Even with the after-effects of my cerebellum brain bleed I was able to build the kit without any issues.

Legal local AM broadcasting in the USA

On http://www.amateurradio.com/ there is a link today to the SSTRAN ANT3000 MW AM transmitter kit. This is legal in the USA for broadcasts around the home or with an FCC Part 15 compliant base loaded vertical for greater ranges.

Very many years ago my very first ever TX was an AM transmitter for MW using a crystal earpiece  a microphone. This was one of the circuits in my Heathkit Electronics Workshop which I got for Christmas 1961. It only got around the house. Another circuit was a MW receiver and I recall DXing with it that same holiday.

This kicked off my interest in radio and amateur radio that has remained with me ever since. I am not sure this TX was strictly legal in the UK. Years later I have reached the other side of the planet with less power!