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Today β€” 7 July 2024Main stream
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Exploring Shortwave Radio Signals: A Peek into Non-Local Communications

3 July 2024 at 02:17
Curious about what you can hear on shortwave ham radio? This video is a brief survey of the diverse world of communications on the shortwave spectrum. Expand your radio horizons and enhance your emergency communication preparedness by tuning in to the world of shortwave ham radio. If you’ve started delving into radio communications beyond local […]

Go Back In Time – Vintage Film

29 June 2024 at 21:24
Turning back time to virtually witness a critical historic method of shortwave communication using the fundamental mode of continuous wave modulation. This is a film from 1944, teaching the basics of Morse code, for military comms. What is the proper (and most efficient) technique for creating Morse code by hand, using a manual Morse code […]

The Great LoTW Outage - Continues.

By: AA4LR
28 June 2024 at 17:55

Update July 1, 2024. LoTW is back up! It is running slow, but it is available. Thank goodness.

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When I wrote the article back in May, I hardly thought that LoTW would be down a month later.

Sadly, the outage continues.Β 

My suspicions were correct, however, that this was something more than a simple networking problem. The ARRL has since admitted their network was viciously and uniquely hacked. I can certainly understand their caution to make sure that every system linked to LoTW is given a clean bill of health before turning the system back on.

Earlier this week, on Tuesday there was apparently a brief period of time when LoTW was accessible. A couple of my ham buddies managed to upload some contacts. They'll have to wait for confirmations when the rest of us can get in.

I do hope it is soon. I'm really missing this service.

German Teletype (RTTY) Weather on HF (Shortwave) Radio

27 June 2024 at 19:59
This is a video of the German Weather Broadcast from DWD, Hamburg, on shortwave (HF), using teletype (RTTY). I demonstrate two decoding software options: JWcomm32 (older), and, FLdigi. Note the in FLdigi, the β€œReverse” feather is selected to properly decode the signal (in either USB or LSB, you still need to select, β€œReverse”). The radio […]

Modern Amateur Radio Hobby – An Introduction

27 June 2024 at 19:47
This video is an introduction to an international public-service and technology hobby known as β€˜amateur radio’ (or β€˜ham radio’). Amateur radio (also called ham radio) describes the use of radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communication. The term β€œamateur” is used to […]

1939 Film: Morse Code on HF in New Zealand (Historical)

27 June 2024 at 18:01
Before modern radio broadcasting, the trails were being blazed both in public broadcast, but also critical links out of the local area. Here’s a side-look back in time…. in this 1939 Film: New Zealand Shortwave Communications; Morse code (CW) The romance of the radiotelegraph service (in this video, the service in New Zealand) is a […]

German Teletype (RTTY) Weather on HF (Shortwave) Radio

27 June 2024 at 19:59
This is a video of the German Weather Broadcast from DWD, Hamburg, on shortwave (HF), using teletype (RTTY). I demonstrate two decoding software options: JWcomm32 (older), and, FLdigi. Note the in FLdigi, the β€œReverse” feather is selected to properly decode the signal (in either USB or LSB, you still need to select, β€œReverse”). The radio […]

Modern Amateur Radio Hobby – An Introduction

27 June 2024 at 19:47
This video is an introduction to an international public-service and technology hobby known as β€˜amateur radio’ (or β€˜ham radio’). Amateur radio (also called ham radio) describes the use of radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communication. The term β€œamateur” is used to […]

1939 Film: Morse Code on HF in New Zealand (Historical)

27 June 2024 at 18:01
Before modern radio broadcasting, the trails were being blazed both in public broadcast, but also critical links out of the local area. Here’s a side-look back in time…. in this 1939 Film: New Zealand Shortwave Communications; Morse code (CW) The romance of the radiotelegraph service (in this video, the service in New Zealand) is a […]

Another one bites the dust

During the middle of the night on Saturday/Sunday, I got a low battery voltage warning on the KX3. That struck me as odd, as I had recently charged up my 12V 10 Ah battery. I was expecting it to last the entirety of Field Day.Β  But in the heat of battle you really don't think twice about it, so I took it off line and hastily replaced with a recently purchased 12v 5 Ah battery that I had gotten about two weeks ago. THAT battery lasted the second half of Field Day without a whimper.

When I got home from work on Monday, I put the 10 Ah battery on my charger and was getting a battery failure indication. It was reading at a level of 10V and 0% capacity and would not accept a charge, I was wondering how can this be? It was purchased new and I haven't put it through nearly enough cycles to have exhausted it. I figured it must be a battery charger fault, so I hooked up the 5 Ah battery to the charger to see what it said. The 5 Ah (which was in use for roughly the same amount of time, if not more) was down to only 11.8 Volts and had 89% capacity left in it! And the charger's fan started running as soon as I hooked it up.

No charger fault - I got a bad 12V 10 Ah battery. Dang!

I don't remember where I purchased it, whether it was from eBay or Amazon, but it doesn't matter. Its not like you can return a battery some 11 months after you've bought it online. I had purchased it after the 2023 Skeeter Hunt when my last deep cycle battery gave up the ghost. I don't want to be scrambling for electrons during the Hunt this year, so I went on eBay and found an economically (cheaply) priced 12V 10 Ah Deep Cycle Gel Cell battery.

I know, you guys are probably thinking, why didn't he go lithium?Β  Price mainly, but also because I don't feel like purchasing a dedicated lithium battery charger. I once ruined a small lithium battery by not using the correct charger on it and I don't want to relive that escapade. I learned that lesson well. However, should this battery not last longer than a cycle or two, I guess I'll bite the bullet. Maybe spending a little more right now would be the right thing to do in the long run, but I guess I'm too frugal to have reached that point yet.

It should be at my house in about a week - long before it's needed for the Skeeter Hunt on August 18th - which, by the way, we've had 93 sign ups so far and the 1st Day of Summer was only 6 days ago!

And looky see what came in the mail yesterday!


Not an ATNO, but an ATNC - All Time New Confirmation. I've worked Easter Island before, but never got a QSL card.

72 de Larry W2LJ

QRP - When you care to send the very least!

Checking out the CCRadio SolarBT

22 June 2024 at 12:52
By Jock Elliott, KB2GOM The syllables coming through the headphones were unknown to me. Clearly it was a language, but not one that I knew. So I logged it: 2/18/24, 1101Z, 1660 kHz, unknown language, orchestral music. (I later found out it was a Korean language station from New Jersey.) Then I moved on down […]

UK POTA Rain and Shine

By: w6csn
19 June 2024 at 18:26

Bletchley Park

Most readers of this blog are probably familiar with Bletchley Park and the significance of this place in breaking the codes used by the axis military forces during the second world war.

The electromechanical systems developed and used here to aid the codebreakers in their daily work led directly to the electronic digital computers of the mid-twentieth century, and then to the modern world as we know it.

After boarding the London Northwestern Railway at Euston station, the hour long train journey took us from central London, through the suburbs, then the pastoral English countryside to the station at Bletchley, just south of Milton Keynes.

Bletchley Park is a five minute walk from the train station at Bletchley, the town of the same name. In keeping with the formerly clandestine nature of the work at Bletchley Park, there are no loud signs to welcome you, just the Union Jack flying over the nondescript visitor center in Block C.

Exiting the visitor center, any ham will quickly spot the three-element SteppIR Yagi perched atop a roof-mounted tower. Also from the tower, a folded dipole extends over the the Block B building which houses the Alan Turing museum exhibits. The other end of this antenna farm is plugged into GB3RS, the amateur radio station for the National Radio Centre of the RSGB.

The friendly and helpful staff of amateurs at the NRC played a crucial role in my hoped-for plan of activating Bletchley Park for Parks On The Air.

Surprisingly, the POTA page for GB-0507 showed only a handful of activations of this iconic location. Seeing as this is a heritage site, I sent an email to the NRC about week before my visit asking for advice on how to be a welcome guest POTA operator.

Note, the NRC is colocated on the grounds of the museum but they are not a part of Bletchley Park. The NRC is a separate organization.

Martyn G0GMB, the Director of the NRC, kindly responded to my enquiry and informed me that individual amateur radio activity is not generally permitted on the grounds of Bletchley Park due to the number of visitors they receive and concerns about RF safety. This could explain the low number of activations.

The sharp eyed will spot the GB3RS beam across the pond.

Martyn suggested I could set up in the overflow car park few minutes walk down the road from the visitor center. While not on the grounds of Bletchley Park proper, the parking lot operation would still be in the spirit of POTA and would reasonably count as a valid activation location.

When I arrived at Bletchley Park on Friday afternoon, I was met by Mervyn G4KLE who was expecting me thanks to a note left by OM G0GMB. Mervyn asked where all my equipment was and I motioned to the pack on my back.

Because my radio and antenna was a low impact, minimal footprint QRP setup, I was told that I could make use of the picnic table just out the side door of the GB3RS shack, with my antenna setup just beside it. This dead-end spot was not on any of the paths frequented by park visitors and my antenna would not be easily visible.

The antenna is low profile

This was a much better arrangement than trying to activate from a car park without a car! I quickly deployed a GRA-GNT micro tripod with center spike pushed easily into the soft ground. The GRA-7350T loaded vertical and a set of short radials provided an SWR of 1.05 to 1.

I chose the QMX as a travel radio while in Britain because with it, the overall kit is very lightweight and compact. With the exception of the tripod the whole kit fits in my carry-on. The GRA-GNT antenna mounting kit has to fly in checked baggage due to several aggressive looking spikes that would certainly be flagged by airport security.

One of the display cases inside the NRC shows an original QCX radio produced by Hans Summers G0UPL, so it is only fitting for the QMX to be operated in its ancestral homeland.

An original QRP-Labs QCX on display at the center-bottom

I scheduled the activation for the whole day on the POTA app and thankfully the RBN connection was working well and spotted me just moments after starting to call β€œCQ POTA DE M/W6CSN” which was programmed into message slot #1 on the QMX.

I had no idea what to expect working a POTA activation in Great Britain and where most of the awake ham population would be European. As such I was a little surprised when the first call was from K2UPD in Kentucky, USA – and he was loud.

Throughout the hour that I was on the air there was alternating periods of sunshine and clouds with occasional light rain. The rain was nothing that couldn’t be handled by the Rite-In-The-Rain logbook and by simply closing the flap of the Maxpedition pouch that held the radio and battery.

The water resistant log book takes the rain in stride.

However, needing just two more contacts for a complete activation, the skies started chucking down rain in large quantities. At this rate both the station and the operator would soon be thoroughly soaked. I hastily made an arrangement with Mervyn G4KLE where he turned the power down on GB3RS as low as it would go and I worked him both as GB3RS and then G4KLE to finish out the ten.

Skies cleared after the activation was complete, naturally.

While that stunt may have stretched the spirit of the rules, they were valid over-the-air contacts and counted for POTA. I was simply working him line of sight off the side of his beam.

QSO map from http://tools.adventureradio.de/analyzer/

I quickly bundled all the stuff back into the GB3RS shack and tried to dry the wettest of the equipment before stowing it all back in my pack.

I can say with confidence that without the kind assistance from Martyn, Mervyn, and the whole gang at the National Radio Centre that my attempt to do a POTA activation at this important historical site would not have been successful, if it even happened at all. They really are a great bunch of guys.

Many thanks to Mervyn G4KLE and the gang at GB3RS

If you ever visit Bletchley Park, which I highly recommend, and are thinking about doing a POTA activity it is imperative that you contact the people at the NRC ahead of time and make appropriate arrangements. GB-0507 is a sensitive and historically significant site, do not just show up with a bunch of ham radio equipment and expect that you’ll be able to operate.


Hyde Park

A couple of days after the successful excursion to Bletchley Park, I had some time available in the morning and I had been wanting to do another POTA activation while in London. Hyde Park is smack in the center of London and is designated POTA reference GB-0401 – I figured now was good time to try to get it.

I consulted the marvel of deception that is the London Underground Map and saw that just three stops from our hotel on the Jubilee Line would take me within walking distance of Hyde Park.

Bill Bryson in his book β€œNotes from a Small Island” has this to say about the London Underground Map:

What a piece of perfection it is, created in 1931 by a forgotten hero named Harry Beck, an out of work draughtsman who realized that when you are underground it doesn’t matter where you are.

Alighting at Green Park station it was approximately a quarter mile walk to Hyde Park Corner. I kept going, deeper into the park, hoping to put some distance between the operating location and what I presumed would be higher RFI emanating from the modern urban environment at the edges of the park.

A park bench which backed up against an area of taller grass seemed like a good choice since it was off the main trail and I could set up the antenna in an area unlikely to be frequented by people.

After spotting myself, I again set to calling CQ POTA with my β€œM/” prefixed callsign. Conditions weren’t great it seemed, but I did make three contacts before the rain once again began falling in earnest.

Waiting out the rain showers was no longer an option as I was running out of time. However, since theoretically I had until 11 o’clock that night to complete the activation, I could come back later in the afternoon and try to wrap it up.

It took several hours to help my daughter to finish packing up and getting moved out of her apartment and back to our hotel, from which we’d leave early the next day for Heathrow for our flight back to San Francisco.

Cloudy skies were never far off in London

After an early dinner we found our way back to Hyde Park which was a much busier place now than it was at 8AM. The park bench which I had used earlier was unavailable so I found a place to set up the station at the edge of a broad field.

The QMX station easily deploys anywhere

This time around, while there were definitely stations on the bands, they either weren’t hearing me or not in the mood to answer my QRP calls.

The week of walking all over (and under) London, the chilly afternoon weather, and sitting on the ground making no contacts finally got the better of me. After an hour of trying I decided to throw in the towel.

Z35M/PNorth Macedonia20 meters2024-06-16 07:56
CT1GFKPortugal20 meters2024-06-16 08:01
K2UPDKentucky, USA20 meters2024-06-16 08:16
When traveling you can’t always get the activation done in time

The three contacts made that morning would have to do. I uploaded my log to POTA later that evening from the hotel. While not thrilled with being the first to attempt, but not complete, the activation of Hyde Park, I put a positive spin on it. All the other activators that come after me don’t have to worry about being the first to bust an activation here. Hi Hi.

Conclusion

Rain and Sun, complete and incomplete activations, these radio outings in Great Britain were a lot of fun and enabled me to tick the box next to one of this year’s ham radio goals, which was do to a POTA activation in a foreign country.

73 de M/W6CSN

Joe’s Adirondack Adventure: POTA activations in the Independence River Wilderness

19 June 2024 at 11:05
Many thanks to Joe (N0LSD) who shares the following guest post: Independence River Wilderness – Adirondacks, NY by Joe (N0LSD) A recent family engagement offered me the perfect opportunity to travel to a part of my state I rarely get the chance to visit. This trip would be a single over-nighter, but allow for the … Continue reading Joe’s Adirondack Adventure: POTA activations in the Independence River Wilderness β†’
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