88 MHz Trans-Atlantic signals heard in Ireland - Sun 8th July 2018

This really is a remarkable catch. Paul Logan in Lisnaskea, Fermanagh, Northern Ireland managed to hear a Canadian radio station across the Atlantic at 88 MHz! While 28 MHz and 50 MHz signals are pretty common across the pond, it is extremely rare that signals of such a high frequency get across.

Using a 5 element beam and a SDR receiver, Paul managed to catch CBC radio 1 on 88.5 MHz from Newfoundland, Canada at 22:35 local time (21:35 UTC) on Sunday the 8th of July 2018.

With a distance of some 3200 kms, it is very likely that it was double hop Sporadic-E which is remarkable. It's not that common for the propagation to reach 88 MHz for one hop but to have it at 88 MHz at two spots at the right distance apart is really rare.

The video of the reception is shown below...



Paul has heard trans-Atlantic Band 2 signals in the past but it really is a rare phenomenon. This is only the fourth time Paul has heard a Canadian radio station on Band 2 (88-108 MHz) since 2003. He is the only person to have heard Band 2 signals from the USA.

The only other person to have heard a Band 2 trans-atlantic signal from North America was David Hamilton in Scotland who heard Newfoundland in 2003. Incredibly, a small number have managed to hear Band 2 stations from the Caribbean which is a more southerly path albeit further away.

Paul's website is http://band2dx.webs.com/

Noctilucent clouds visible from Cork... Sat 7th July 2018

I took this photo of noctilucent clouds from my house in Cork on the south coast of Ireland at about 23:08 UTC on Sat 7th July 2018. This was just after midnight local summer time and about 130 minutes after sunset.

To the naked eye, they looked a bit like a bright cloud on the horizon and a 5 second exposure on the camera was needed to bring out the detail shown above.

My location is just below 52 degrees north so they would certainly have been visible by anyone further north. I could still see them faintly at about 00:00 UTC which was 1am local time, roughly 3 hours after sunset.

Noctilucent clouds exist at a height of about 80 kms above the earths surface, way above where normal clouds exist. Some propose that they may have a bearing on VHF propagation on paths near the poles... example... Europe to Japan on 50 MHz.

Reception of the OZ7IGY beacon on 40 MHz - Fri 6th July 2018

Both 28 MHz and 50 MHz were wide open on Friday the 6th of July 2018 with plenty of strong Sporadic-E signals on the bands. One of the best things about monitoring FT8 signals on 28 MHz is that I can get a very good idea of where the band is open to.

Since I started listening in mid-May, the 28 MHz band has been open every day but openings from Ireland to Denmark are the exception rather than the norm. Openings from Ireland to the South to Spain / Portugal or the South-East to Italy/Germany seem a lot more common.

Today was an exception and as soon as I saw FT8 spots from near Copenhagen on 28 MHz, I listened on 40.071 MHz for the OZ7IGY beacon.  As can be see from the decoded PI4 spots below, I was hearing the 40 MHz beacon from about 13:20 UTC till 21:00 UTC with some gaps.

The 40 MHz signal was never that strong although my use of an indoor 50 MHz antenna probably has a lot to do with that.

This is currently the only signal in Europe on the 40 MHz band.

OZ7IGY beacon decodes below... (Signals stronger than -10dB sigal to noise ratio in bold)

New page for 40 MHz...

At the moment, there is very little material or information on the web about any type of 40 MHz activity. As it is likely to become a new amateur band in Ireland, I have set up a page on this blog so that people can have a look at the information that I have already.

You can see it here... https://ei7gl.blogspot.com/p/40-mhz.html

EI DMR Registrations...

A few weeks back, I got a registration number for using DMR (Digital Mobile Radio). Considering DMR has its roots in the commercial world, I think that this will become the de facto standard for digital radio on the VHF amateur bands in the future...as opposed to D-Star or Fusion.

I was curious to see how many EI stations have registered to do and I put together the chart above. The 2017 peak coincided with articles in the IRTS newsletter.

The chart below shows the total number of DMR registrations for EI calls at the end of each quarter up until the end of 2017...

As of the 9th of February 2018, there are 106 EI calls registered on DMR. Needless to say, not all of them are active or may even have equipment but it does show a growing interest in this digital mode.

Update 9th March 2018 : Using the 'Heard Users' function, 47 of the 108 registered users have been heard using DMR. That's roughly 44%.

EI-GI Packet Map for 1994

I recently came across this old map of the various packet nodes in Ireland back in 1994 (Click on the image to see the full size version).

In today's world of smartphones and tablets, it's easy to forget about what a big deal packet radio was back then. In 1994, most people weren't on the Internet and the only source of information was via email at work or via magazines and books.

The killer 'app' at the time if it could be called that, was the DX-Cluster. When it was working properly, it allowed people to see for the first time what was happening on the bands and what others were hearing.

From what I remember, I started using packet radio back in the early 90's with an old DIGITAL computer terminal, a PK-88 TNC and a really old PYE 2m radio.

1994 may well have marked the peak of packet radio in Ireland. A few years later as more people got access to the Internet, the packet radio network went into decline. The 1200 bits per second speed back then seemed fine at the time but it was arcane compared to say a dial up modem let alone the megabit fibre connections of today.

Today, packet is used mainly for APRS (Automatic Packet/Position Reporting System) where stations sent out an identification bursts every few minutes. A map of Irish stations on APRS can be seen HERE.

Activity Levels for the Wild Atlantic Way Award... Jan 2017

From 1st January to 31st December 2017 Irish Radio Amateurs will be on air with nine special calls – EI11WAW through to EI99WAW.  Each call will be associated with one of the counties making up the Wild Atlantic Way.  Each call will have its own distinctive QSL card depicting a highlight of the county linked to the call.

As of the 31st of January 2017, the number of page views on QRZ.COM can be seen above. As you might expect, the number of page views should roughly reflect the activity levels of each station.

There has been quite a variation in activity levels for the month of January. The number of QSO's recorded in Clublog is shown below and roughly matches the QRZ.COM views.

* Note that some stations may not have updated all their contacts yet which would explain why perhaps EI11WAW has a lot more QRZ page views than recorded contacts.

Some calls like EI99WAW have been very active on both SSB and CW and on bands from 80m to 20m which allows a lot of people to work them....both near and far.

Others have been very quiet or else they have been up on the higher bands like 20m which makes it difficult for stations in the UK and Ireland to work them. Still though, it's early days and there are still 11 months left.

More info about the Wild Atlantic Way award in this previous post.

Digital Modes on the VHF bands in EI

Over the last few weeks, I have been reading up on the various digital radios on the VHF bands. It would seem as if there are three potential modes which could be a replacement for analogue FM.

1) Icom D-Star, 2) DPMR and 3) Yaesu System Fusion

While the digital radio network in the UK seems to be pretty well developed, it is still in its infancy in EI.

A recent news item from the IRTS outlined how the the Yaesu System Fusion was being introduced in Donegal and Limerick.

A key fact is that the Yaesu DR-1X repeater controller will work on both analogue FM and on the Yaesu C4FM digital system. This means that at worst, it will work away as an FM repeater even if no-one uses the digital system. It will receive digital signals and convert them to FM on the o/p so that everyone can hear them. e.g. Digital in, FM out. It can also relay whatever is on the input...i.e. FM in, FM out OR digital in, digital out.

It was mentioned in the news item that some people in the Limerick region have bought the following Yaesu radios...

There are some obvious issues with introducing this new system in EI...

1) As you can see, they're not cheap. Someone can buy an ordinary analogue FM rig for a lot less. A cheap Chinese FM handheld can be purchased for less than €50.

2) The level of activity on the existing FM network is pretty low. The Limerick repeater has very little traffic on it as it is so it's hard to justify buying an expensive radio.

It will be interesting to see how things develop. I suspect though that in Ireland, DPMR may well become the system of choice for those that want to experiment with digital as cheaper radios come on the market.

This video explains what the Yaesu Fusion System is all about....


This is a video of the new repeater in Donegal...