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Operating Notes: DX, AllStarLink

By: Dan KB6NU
7 September 2024 at 14:22

CY9C

When CY9C began operations back on August 26, there were huge pileups. On 30-meter CW, the pileup was at least 5 kHz wide. One of the reasons for this, of course, is that St. Paul Island is part of Canada and not that far from most of the United States. That made it a lot more accessible to hams here in the U.S.

Lighthouse and buildings on rocky island.
CY9C operated from St. Paul Island from August 25, 2024 to September 5, 2024.

I waited, and on the evening of August 31, I actually heard them calling CQ on 30 meters managed to work them on the second call.

As it turns out, I probably could have skipped it entirely. I just checked Logbook of the World (LOTW) and see that I worked CY9C on August 21, 2016; CY9SS on July 5, 2005; ;and Cy9A on July 31, 2003.

VUs in the log

For some reasonβ€”maybe because I don’t really have a DX stationβ€”I had never managed to work anyone in India. Well, in the last Β month or so, I’ve managed to work two Indians, VU2GSM and VU2TMP. VU2TMP has QSLed via LOTW, making my current DXCC count 174.

AllStarLink

And now for something completely different, as they used to say on Monty Python’s Flying Circus….

AllStarLink logo.
Several months ago, the University of Michigan Amateur Radio Club (UMARC) upgraded their repeater system (145.23-, 100Hz). As part of this upgrade, they became a node on the AllStarLink network, which they have been proudly announcing on their Sunday night net.Β 

After last Sunday’s net, I decided to find out how to access the network. The first thing I did was to take a look at the UMARC website, or I should say websites. UMARC actually has four different web pages. Unfortunately, none of them had any information on how to access the AllStarLink network.

Then, I asked one of the club’s advisors. He wasn’t really sure how to do it either, and advised me to search for the information on the web. I did this and found a Beginner’s Guide, but this isn’t really what I was looking for. The Beginner’s Guide directs someone on how to set up their own node, not really how to use the network.

I kept looking and found the page AllStarLink Standard Commands. This is exactly what I was looking for. This page describes the DTMF sequences a user needs to connect and disconnect from nodes. Fortunately, the UMARC repeater uses this standard command set.

Next, I had to find a repeater to connect to. That shouldn’t be so difficult, I reasoned, since the network boasts that they have 34,720 users and 35,345 nodes. I started with the AllStarLink Node List. I was able to connect to a couple of repeaters, but most of them seemed either offline or inaccessible for some reason. One of the active nodes that I was able to connect to was WW8GM, the General Motors Amateur Radio Club repeater in Detroit, but I got no reply to my call there.

So, I asked on /r/amateurradio if anyone had suggestions for active or interesting nodes. Β I was directed to a list of β€œkeyed nodes,” which I guess are nodes that are currently active. Currently, this page is showing 30-35 active nodes.

One of the nodes that looked promising was a repeater in Seattle. The page showed that it was connected to at least a dozen other repeaters. When I connected to that repeater, I heard a net with everyone giving weather reports! I didn’t find that very interesting, so I quickly disconnected.

I’m told that the UMARC repeater connects to a net of student stations on Saturday afternoon. I’ll be listening for that, but really would like to know of other interesting nets or nodes on the AllStarLink network. If you know of any, please comment below.

Β 

Leh, 1978 and the story of a photograph

By: W6PNG
12 August 2024 at 12:21
1978, Leh…..a homage to Nat Geo

The plane is empty.

She’s adamant that we must stay in our assigned seats but I somehow find myself stealthy relocated to a window seat.

Tired, excited and most likely caffeinated we are airborne from Cairo. The previous flight had left London sometime past midnight, presumably to garner the cheapest departure cost, inevitably has disrupted my sleep pattern, worsened by rigid and unbending seats.

Alarm and confusion set in as we descended early and all l could see was miles of desert and dunes. This can’t possibly be India and I wonder if we have somehow found our way onto the wrong flight to the wrong destination. Maybe she’s amused but responds that we are landing in Dubai and assures us we will get to Bombay after a short stop that requires no disembarkation on my part.

Weeks go by and we’ve traveled enormous distances at a snail’s pace. We’ve crept south from Bombay to Cape Comorin, the southernmost tip of India. As lone travelers we are an oddity to many. We visit Hindu temples, have become very familiar with train stations, carriages, government hotels and a diet that is proving hard. Density varies from a handful of people in remote and struggling villages to throngs that are almost a deluge in cities of equally challenged people. We’ve swung north along the Bay of Bengal towards Darjeeling.Β 

Me, 1978, somewhere in India

Weeks become almost two months and we’ve skirted westward across the lower Himalayas and into Kashmir. Maybe it was an article in the Guardian, but Rico has decided we must visit Leh in the otherworldly place called β€œLittle Tibet” or more formally, Ladakh. Not long since a war frontier in bloody battles with China, this area is now open for the first time to tourists.Β 

Srinagar to Leh, 2 days, ~250 miles

Ill again, I stay in the Srinagar hotel room. Against the odds, Rico has scored a victory with two bus tickets and permission for us to ride from Srinagar up through the mountains on what is sometimes a plausible road clinging to the mountain side high above the Indus River.

Kargil is a desolate high altitude place. Unfamiliar with much, all hotel beds are nabbed by those in the know and we find ourselves sleeping on a dirt floor in a hovel. Maybe tea revived us the next morning but a day later we arrived in Leh and straight into the 15th century. No cars, limited electricity, heavy felt clothing, distinctive hats all make for a sense of somewhere that is not India. Buddhist pray wheals, pray flags and a miniature Portola dot a hilly and rugged community and close in feel and outlook to Tibet versus India.

The compartment was typical of the era. Two doors, two bench seats offering privacy and these cramped spaces were repeated the length of the carriage. No bathroom, no ability to move up or down the carriage. If trapped, fellow travelers could make theΒ  journey almost unbearable.

Each is not particularly heavy nor bulky but five, seven or more rapidly became a chore to move. Pulling one out was possibly the highlight of the trip. Aged relatives with little to say made for difficult company for this ten year old who was shy and also had little to say.Β 

In a world of black and white TV and music pouring from a tiny transistor radio, badly curated by a prescriptive BBC, National Geographic was manna from heaven. A beautiful, exciting and colorful world existed beyond the drab 1970s UK.Β 

I loved the photos of American National Parks, hoodoos in Bryce or geysers in Yellowstone. Definitely not central London. I loved the photos of American states, colorful Vermont, cactus rich Arizona, I’m sold, I’m coming!. The occasional pull out map was always a perennial favorite. Photo tours of Africa, South America and even Europe were a delight. The ads for Bell Air or Cadillac conveyed such a sense of optimism. Camera and exotic shortwave radio ads sealed the deal for me. There is a Brave New World somewhere else.

Thunderbird, Cadillac, Bel Air….the stuff of dreams

We were essentially broke. Film was expensive, space was tight and unbelievably for an almost three month trip I have around twelve rolls of 35mm film, predominantly color but a few rolls of black and white. As a pretty unseasoned photographer on such a ridiculous β€œsnap” budget it’s a marvel I have really anything to show for what was and is tritely, a life changing trip which made me a better human. Not many, a few, sunrise at Cape Comorin and this.

3 months, ~12 rolls of film….practically impossible to get anything of value save this!!

Permission granted, not as V victory but by two fingers, a rupee for each.Β Β 

I snapped it, I labored to develop and print it and caringly carried it over the decades through countless moves, an emigration to America and stashed it with family photos.

Its significance, somewhat unrecognized nor fully understood until later in life. In a way it’s a homage to National Geographic. Imitation is the finest form of flattery and I was β€œmimicking” what I had so enjoyed.

Twenty five percent inflation, relentless crippling strikes and an IMF bailout sharpens the will in 1970s London to avoid failure.Β 

With a newly minted Computer Science and Math degree, emigrating to join the A team was made all the more palatable having so enjoyed National Geographic’s simple message; the world is a wonderful place, the glass is half full, not half empty and optimism and America are the same thing.Β 

A simple philosophy to guide a simple life.

Thirty two years on. Three recent snaps from Bhutan ….the homage continues

Field Day with Farhan, his Family and an sBITX Near Hyderabad, India

25 June 2024 at 15:07

Farhan and his son Rayyan with an sBITX

The SolderSmoke crew thought it had a tough time this Field Day:Β  Pete N6QW had hoped to do something, but was stymied by hot California weather.Β  Dean KK4DAS had even worse weather.Β  Bill HI7/N2CQR was at a remote QTH with an HW-8 and a wire antenna -- he managed just ONE contact (W7RN in Nevada on 15 CW).Β  But none of us had as much trouble as our friend Farhan had.Β  Β InΒ  his account of Field Day in Hyderabad, we see an intrepid ham standing up against the slings and arrows of outrageous fortune that Field Day often throws at true radio amateurs.Β  Here is Farhan's Field Day story:Β 

-----------------------------

You asked for it, so here it goes...

I got the chance last evening to head out to our farmland. My daughter Ramsha had her friend were over. By the time we all got into the SUV, it was already 5:30 pm. I had loaded in the Spiderbeam fiberglass pole, the sbitx with LiPo battery and an EFHW ATU strapped on, into the back into my backpack,Β  the toolbox with a few hand tools.

On the way to the farm, rain begin to come down. Rayyan (son, VU3ECQ) started said as much, I turned up the volume on Bruno Mars...

By the time we got to the farm, the rain was over(Ha!). We immediately begin to set up the antenna. I chose an inverted V config for the antenna and to use a tree as the support. The spiderbeam, as any who has been taken in by it knows, is a telescoping 33 feet high mast made of fiberglass. A curious villager decided to help us too. The girls had already taken off to pick the Mulberries.

So, Rayyan, the curious fellow, and I tried to telescope out the mast. The curious fellow, having never read the manual, picked up the mast from the wrong end and all the pieces fall out the other end. (Censored @#$%...). Within 15 minutes, we had all the pieces put back in the order of their thicknesses. I scotchtaped the center of the 66 feet wire to tip of the mast and we all hauled it up vertical. For those who don't forget maths, you can figure that two section of 66 feet wire will be exactly 33 feet high and when you tie this to the high end of a 33 feet high pole -- they just hang down vertically in a straight line. I was trying hard to remember the math teacher's name when the telescoping mast decided to untelescope into a 5 feet, collapsed height. My son commented that it has worked as advertised. Now, I wanted to remember my son's Moral Lessons teacher's name...

Next, we scotch taped the center of the 66 feet wire to approximately 2/3rd height. The curious guy and I walked it up back and took it to the tree. Rather we tried to. The branches kept getting in the way. Finally, managed to get within 4 feet of the trunk and I declared that we could just tie it up with the packing nylon rope bundle we were carrying. We did and it held up.Β 

By now, the two ends of wire had gotten all twisted around each other. We all had an excellent arm workout trying unwind them. The techniques -- never mentioned in any antenna handbook -- is to hold both ends of the twisted pair in one hand each, spread out your arms and make overhead sweeping motion to flick one wire over the other. This method only adds more twists into the wire. I discovered that wires could be twisted around each other both ways. There is no untwisting them. I discovered this amazing feature!

After watching us for 10 minutes, Humera, my XYL, asked us to forgive the world and bring down the mast and untangle the wires on the ground. By now, a stray cow had also sauntered in on her way back home. I think our language attracted her. She was bellowing for her calf to come and watch.

Next, we, efficiently undid the wire twists. Rayyan and the curious fellow held the two ends away from each other and I raised the mast. Or rather I tried to. At 45 degree tilt, the mast sections add up huge amount of weight. I was tottering around with it when it thankfullyΒ  leaned onto the tree branches. At this time, I declared it done. We tied the mast at 6 feet height by the rope to the tree trunk. One end went to the a branch of a bush and the other we walked to the point where it was taunt and touched the ground.Β 

I brought out the radio, much to the curious fellow's surprised, who was looking forward to me doing more entertaining things with the mast rather than a radio. We switched it on, I quickly peaked the ATU to maximum noise and keyed up. The sbitx shut off. Our battery was discharged.

An intrepid ham is never dissuaded by the flings and arrows of time which, when taken at a tide, leads to Field Day. I decided to move the operations to the farm cottage where we had power. But there was no supporting tree nearby. I decided to use the SUV as support.

We packed the SUV at an approximately correct distance from the vernadah of the cottage. We carried the mast over to the SUV and strapped it at two points: on the foot rest and on the overhead luggage rock. At this point the Spiderbeam fiberglass collaspible mast took a commercial break and demonstrated rapid collapse, into the much vaunted 5 feet size. Rayyan was rolling in the grass with mirth. This divided my anger between two opposing directions: towardΒ  my progeny and toward my antenna mast. I didn't move.

I thought like an engineer.Β  The curious fellow and I carried the mast to an illuminated part of the farm, laid it down, and scotch taped each section to the next as the spiderbeam folks had warned us to do. It is strange how memory works better when your blood pressure is up.Β 

The mast went up again, this time strapped to the SUV's rack, door column, and the footrest. I setup the radio on a table outside the cottage, running the extension cord from inside. The SUV and the antenna were too far for the EFHWΒ  to reach the radio.Β 

We asked Humera (XYL) and the girls who were watching us while having their mulberries to DO SOMETHING and not just SIT THERE. So, Humera got inside the SUV and started to roll it towards the cottage. A loud crunching sound announced the sad departure of the sunflower plants we had tied the other end of EFHW fromΒ  mother Earth. The EFHW had unrooted its support as the SUV pulled it away. These minor inconviences never deter a determine man, remember Gandhiji!Β 

Finally everything was in place, and we fixed up the rig but the microphone wouldn't key up. So what? I can just operate from the in-built mic and the thoughfully provided on-screen keyboard for CW, right? Well I could but I needed to key CW contiuously to set the SWR. So I opened up the mic. The curious fellow who had carried the radio to the new operating position was new to radio etiquette. He had just picked up the radio and walked, dragging the mic through the slush and weeds. The mic connector had come out.

I took the matters into my hands, by now, Rayyan was trying to show empathy for the old man by making loud noise like Aww! Shucks! and other unmentionables. I cut the cable with teeth, unbraided a small section and wired it up on the connector so I could short it to key the rig. Why can't the imbecile radio designers think of providing a tune button on the screen??

Finally, everything was in place. I tuned up and AIR net was on. This is the national evening SSB net on 7150. I tried breaking in with SSB a few times but didn't get through. Finally, I changed to CW and called. The net control asked "the CW station to QSY, this is the AIR net....". Finally some other SSB station who could copy my CW translated my CW to the net control and we had a three way contact.

At this point the girls declared we had to head home now that I had had my contact.

I was about to let out my public school vocabulary when I heard them say that they were hungry and there was lamb curry at home. The idea of getting back home and drying out, and eating the hot lamb curry and mangoes was too much for me. We folded up. But the mast refused to collapse. The curious fellow who had taken charge of the mast engineering had finally gotten hang of it. With superhuman strength, he had pulled the section of the mast out so tightly that no power on earth could potentially loosen them. I decided to trick the mast into thinking that we wanted it to stay up, so we put it back up vertically and slammed it into the ground. It dutifully woke up and demonstrated the much vaunted ability to fit back into a 5 feet tube.

I looked into the darkness to find the EFHW winder but I couldn't locate it. The curious fellow had left, scared by the racket the radio was making. The cow and the calf had gone home. We too headed back home.Β 

In the picture, you can see Rayyan standing while I am checking into AIR net. In the background is the SUV with spiderbeam fiber mast that is easy to carry in a 5 feet size.

73, de Farhan VU2ESE with a little help from my friends and family.

Experiencing the significance of Friis transmission equation and Knife Edge diffraction at Kolhapur Medical camp

24 February 2024 at 09:14

It was only through Sadguru Shree Aniruddha Bapu’s arrangement for us to be present as a support function for the β€œOld is Gold” distribution in remote villages that I had the chance to operate...

The post Experiencing the significance of Friis transmission equation and Knife Edge diffraction at Kolhapur Medical camp appeared first on Nuclearrambo.

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