9 May 2017
10m WSPR
I have been on 10m WSPR TX overnight (500mW). Only one spot from PG0DX/1 (411km) during the overnight period. This was possibly tropo? I am still on 10m WSPR, ever hopeful.
8 May 2017
Probing? - NOT amateur radio
Funny how one of my blogs had exceptional numbers yesterday and this blog exceptional numbers today. The fact these coincide with great interest from a certain Eastern European nation is purely coincidence?
Somehow I think someone is doing a regular probe to see if they are suitable sites to hack. Should my blogs suddenly disappear or behave oddly, you will know why. I try to avoid this, but some very famous sites have been affected in the past.
Somehow I think someone is doing a regular probe to see if they are suitable sites to hack. Should my blogs suddenly disappear or behave oddly, you will know why. I try to avoid this, but some very famous sites have been affected in the past.
No internet - NOT amateur radio
Our broadband stopped working last night. I called the helpline and after an hour on the phone to India (where the call centre was located) it still refused to work. I was exhausted. After lunch my wife tried the call centre. A different person this time. Within 5 minutes everything was working. I don't know what she did but it worked.
Labels:
internet
Fewer swallows (birds)? - NOT amateur radio
It is the second week in May and I have seen no house martins, just one swift and very few swallows. I may be wrong, but there seem fewer around here this year.
Yesterday we went for a walk, taking about an hour, around part of the village and the skies were empty of these. In years past, the skies would have been filled with these migrants.
Each year that passes, there appear to be fewer and fewer. Just a few years ago (even last year) swifts were the most common bird in the summer sky. I have been looking and there are very few around, so far at least. Maybe they are late arriving, although I fear there are genuinely fewer about.
From the RSPB website:
"Swallow numbers in the UK have fluctuated over the last 30 years with pronounced regional variation in trends."
Yesterday we went for a walk, taking about an hour, around part of the village and the skies were empty of these. In years past, the skies would have been filled with these migrants.
Each year that passes, there appear to be fewer and fewer. Just a few years ago (even last year) swifts were the most common bird in the summer sky. I have been looking and there are very few around, so far at least. Maybe they are late arriving, although I fear there are genuinely fewer about.
From the RSPB website:
"Swallow numbers in the UK have fluctuated over the last 30 years with pronounced regional variation in trends."
Labels:
house martin,
migrants,
swallows,
swift
PSK31 versus JT65
I was going to try PSK31 on 10m today, then I read this and decided against it! I shall try 10m JT65 (2W) again.
http://forums.qrz.com/index.php?threads/what-can-jt65-do-that-psk31-cant-do-what-can-jt9-do-that-jt65-cant-do.540841/page-2
UPDATE 1648z: No JT65 spots on 10m here today, at least not yet.
http://forums.qrz.com/index.php?threads/what-can-jt65-do-that-psk31-cant-do-what-can-jt9-do-that-jt65-cant-do.540841/page-2
UPDATE 1648z: No JT65 spots on 10m here today, at least not yet.
Wideband verticals
There are several examples of wideband verticals. These are often designed to work without an ATU but performance is compromised. Martin, G8JNJ, has done some analysis of these. In some applications, these antennas serve a purpose, although the commercial versions are not low cost. If you can accept the compromises then take a look.
See http://www.g8jnj.net/cometcha250b.htm
See http://www.g8jnj.net/cometcha250b.htm
Sunspots and 10m - Monday May 8th 2017
Solar flux is 70 today and sunspot number 23. A=8 and K=2. There seems to be more Es on 10m now although little real DX outside of Europe with my antenna. Others with better antennas and more power may be fairing better on 10m.
7 May 2017
Muntjac Deer - NOT amateur radio
This small deer was introduced in the UK, but is now common. Last year we had some in our garden, and they nibbled our sweet peas! We saw one today in a nearby meadow. They are like a large dog in size.
See https://en.wikipedia.org/wiki/Muntjac
See https://en.wikipedia.org/wiki/Muntjac
VLF tests continue
Experiments at VLF by amateurs continue with DK7FC leading those TXing on bands from 970Hz to 8270Hz. People as far away as Italy and the UK have been trying to receive these transmissions, some successfully.
Unlike commercial stations, these are amateurs using modest powers and "back yard" antennas. At one time people said, "we'll never get over the garden wall at VLF". Instead, signals are being received over hundreds and sometimes thousands of kilometres. I think in the past I have copied 5 different amateur VLF signals from as far away as Germany and the Czech Republic.
The secret is long integration periods, very narrow bandwidths and great stability. Casual listening will not work. Amateur VLF work requires care and dedication, quite different from reception of commercial VLF stations with huge powers and antennas.
Unlike commercial stations, these are amateurs using modest powers and "back yard" antennas. At one time people said, "we'll never get over the garden wall at VLF". Instead, signals are being received over hundreds and sometimes thousands of kilometres. I think in the past I have copied 5 different amateur VLF signals from as far away as Germany and the Czech Republic.
The secret is long integration periods, very narrow bandwidths and great stability. Casual listening will not work. Amateur VLF work requires care and dedication, quite different from reception of commercial VLF stations with huge powers and antennas.
Labels:
amateurradio.com,
vlf
MS on 2m
Martin G8OFA has been using 2m MS (meteor scatter) this year and has worked some impressive DX as the photo shows. The MS QSOs are shown as squares with bold outlines. As you can see, these are far into continental Europe. Such contacts would be rare on 2m by tropo and QTH, power and antennas would be important.
MS is available at any time (random MS) but is best in showers. It works at any time in the solar cycle. QTH is less important. On 6m, pings tend to be longer, although antenna elements are bigger.
MS is available at any time (random MS) but is best in showers. It works at any time in the solar cycle. QTH is less important. On 6m, pings tend to be longer, although antenna elements are bigger.
Subscribe to:
Posts (Atom)