AmateurRadio.com

I was only saying to Andy G6REG this evening that I seemed to have missed all the 70MHz Es openings this year. After supper I popped up to the shack to listen on 28MHz and noticed a tweet from Gav M1BXF to say that 50 and 70MHz were open to Scandinavia. I was pleased to work several stations and new squares. After I’d got the ones in the log, I put the iPhone video camera on to record OH1LEU working one of my locals, G8CUL.

Remember, this is a little 70MHz station – the antenna is just a vertical

Tim Kirby, G4VXE, is a regular contributor to AmateurRadio.com and writes from Oxfordshire, England. Contact him at [email protected].

So after ARISSat-1 was deployed, I have been trying to receive a signal from it. Specifically SSTV signals. I haven’t been very sucsessful. For one, I haven’t been able to be at the radio when it makes a pass because of work and family commitments. I’m hoping this week, I’ll have more time to sit down and be there to listen for. But the first thing is, I need to know where it is. 

I took a look at some of the tracking software out there for my Mac and found that there is only really one program that I could find for the Mac natively, that was “fully” featured with all the bells and whistles. But it was pretty steeply priced for me at $98. I decided t see what else was out there for free. The only one I found that I liked, was Gpredict. It’s written for Linux, but there are ports for it for Windows and Mac, and it’s open source, so it’s free.

The only draw back was, it wasn’t native, so I had to install from source or use MacPorts, a project that ports open source Linux software to the Mac platform, since Mac OS X is based on FreeBSD. The install took me about an hour because of all the dependencies needed for GPredict. MacPort installed them all with no problem.

So after some false starts and finally reading some more info on it, I managed to get it running on my Macbook Pro. After I ran it for the first time, it saw that the info for the satellites was out of date and asked to do an update, giving me the option to do it online or through a file I downloaded.

Gpredict supports fast and accurate real-time satellite tracking using the NORAD SGP4/SDP4 algorithms, No software limit on the number of satellites or ground stations and Radio and antenna rotator control for autonomous tracking.

After uploading and doing a little more research, I was able to find ARISSat-1 on the list, under RadioSkaf-V. Once I found it, I was able to track it no problem. Now, it’s just a matter of having the time to do it. In the meantime, I encourage you to check out GPredict, and try it out. Since it’s free you’ve got nothing to lose.

But if you also have a suggestion for Mac satellite tracking software, please, share it in the comments, and share any experience you have with GPredict.

73.

Rich also writes a Tech blog and posts stories every Tuesday and Thursday on Q103, The Rock of Albany’s website, as well as Amateur Radio stories every Monday thru Friday here on AmiZed Studios.

Rich Gattie, KB2MOB, is a regular contributor to AmateurRadio.com and writes from New York, USA. Contact him at [email protected].

A few days ago I dug out of the cupboard the Wonder Loop portable magnetic loop that I made a while ago. I had lost the pieces of uPVC electrical conduit that made a Heath Robinson support for the coaxial cable loop element. But I had always felt the saggy coaxial loop was a bit of an eyesore anyway. So I decided to make a new loop using microbore copper tubing. It turns out that you can buy this stuff on eBay – any diameter and length that you want shipped to your door next day by first class post. Three metres of 1cm dia tube cost just over £12.

The new loop looks a lot better and certainly hasn’t harmed the performance of the antenna which continues to amaze me. I tested it using WSPR at a 1W power level on all bands (40m – 15m) that my Wonder Loop covers. The best result was obtained yesterday afternoon on 20m, between 16:30 and 19:38z, when I received 15 reports from VK2XN of from -9 to -25dB SNR, at a distance of 16579km. This, I repeat, was using just 1 watt from the FT-817 with the Wonder Loop sat on my shack “workbench” almost exactly as in the picture. (The FT-817 was moved to the radio/computer desk during transmission.)

I also spotted 9 reports of VK2XN during the same period, which surprised me due to the extremely high noise level I have here on 20m. The SNRs weren’t so good, though, and he was running 10 watts. Still, that almost qualifies as a two-way contact.

I haven’t tried other modes yet, mainly because the shack is so small and these days I’m a bit wary about sitting inches from an antenna even if it is radiating no more than a watt or two. But the original Wonder Loop was very successful using PSK31 and I hope to try this one with JT65A shortly.

The one disadvantage of the new copper loop is that it isn’t exactly portable, which had been one of my original objectives when building the antenna. If you could get hold of some metal strip it might be possible to make the loop from six pieces that you can join together using bolts and wingnuts to form a hexagon. Possibly you could even do this using tubing, flattening the ends of each 60 degree segment and then drilling them so the loop could be bolted together. But as I’m not planning on taking the antenna anywhere at the moment I’ll keep the one-piece loop which I can stick behind the shack door for storage.

This is a really great antenna that should enable anybody to operate HF from anywhere.

Julian Moss, G4ILO, is a regular contributor to AmateurRadio.com and writes from Cumbria, England. Contact him at [email protected].

Three large solar explosions will cause magnetic storms to hit earth over the next few days, according to Reuters.

More interesting is this quote from the article:

“The 1859 solar storm hit telegraph offices around the world and caused a giant aurora visible as far south as the Caribbean Islands. Some telegraph operators reported electric shocks. Papers caught fire. And many telegraph systems continued to send and receive signals even after operators disconnected batteries, NOAA said on its website.”

Whoa.

Matt Thomas, W1MST, is the managing editor of AmateurRadio.com. Contact him at [email protected].

  

I have been thinking about, reading and studying for my US amateur radio extra class license now since early 2008.  If you are new to my blog and do not know me through my podcast or the various social media locations I hang out on, then you might not know that I originally got my license in August of 2007 and upgraded to general in January of 2008.  For much the same reason it it best for a graduating high school senior to start his/her college studies the very next fall (after graduation) the same can be said for the amateur radio exam and study process.  Once you are in the mode of studying and testing, it is much easier to just to keep moving along the process.

 

Of course I didn’t take my own advice and I have on more than one, two and perhaps more than three occasions picked up the ARRL Extra Class license manual and said today is the day I start (or start over again).  Sadly, Yes…it has been “start over” since too much time had passed from the last time I seriously studied and read the material.

I recently heard about an amateur extra class starting up online.  The class is hosted by the South Coast Amateur Radio Service (SOUTHCARS) and is taught by extra class operators and all done on-line using Echolink or IRLP.  The time commitment is twice per week (Sunday and Tuesday evenings) and is scheduled to complete by middle of September. 

I’m really not going to pressure myself or make commitments to anyone that this time will be different.  I’m also not (at this moment) setting myself any hard and fast deadlines for when I would attempt an exam session after the middle of September.  I’ve made these mistakes before and honestly, it’s been one of the reasons I’ve put the book back on the shelf. 

All I can do is make an attempt to attend each of the twice weekly sessions and follow the guidance of the instructor(s).  I think the one key difference I see in this plan is the training class only lasts a little over one month.  It’s not something that is going to string out for half the year.  Fingers crossed, my work schedule will comfortably allow this and I can get through the class and on the other side be better prepared (both knowledge wise and confidence) to take the exam.  I won’t lie about this….my biggest fear is sitting for the extra class exam and failing.  I know failing is not the end of the world, but just a hard thing for me to deal with. 

Well….while I wasn’t going to post a blog post today, I did want to get this out there.  Wish me luck.

Until next time,

73 de KD0BIK

Jerry Taylor, KD0BIK, is a regular contributor to AmateurRadio.com and writes from Colorado, USA. He is the host of the Practical Amateur Radio Podcast. Contact him at [email protected].

Well it's hard to believe that it's been one full year of blogging for me. Seems just a short time ago I was discovering blogging never thinking I would have an active blog. So what has happend over the last 12 months of blogging. I sure have expanded my horizons with ham radio! Areas such as WSPR, QRPp, types of portable antennas, fellow ham's taking ham radio outdoors and the list goes on. Im just amazed that folks want to read the stuff I post. I was not sure what to exspect with blogging and were my blog would end up heading but over this past year I have been having a blast. For someone who really does not say much this past year I was able to squeeze out 110 post's. Well here's to another year of blogging.........CHEERS.....
Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

I always look forward to receiving my QST and CQ magazines each month, and I dutifully run to the CQ web site every month when the latest PDF of Worldradio News is made available for download. I really do enjoy reading about our hobby and appreciate the authors who contribute to these publications (for very little money in return). Shoot, I even study the ads, including those that have not changed in decades. (Why do some vendors insist on showing the faces of every radio by every manufacturer, as if we make our purchasing decisions based on those tiny thumbnails? And will MFJ ever change the full-page Hy-Gain rotator ad?)

However, as I opened the current edition of CQ, I could not help but notice that the lead article is about all the new gear unveiled at Dayton this year. Dayton. As in May! And it’s August. We once took such delay in a story’s content as the norm. It is, after all, the nature of the magazine publishing biz that there must be considerable lead time.

But as I read the short writeup on the Elecraft KX3, I recalled that there was a YouTube video posted way back on May 20 featuring Wayne Burdick K6XR giving a very enlightening ten-minute demo of this interesting bit of kit. In color. With sound. Old news in CQ? I’m afraid so.

ARRL recently did a major update on their web site, but it is still clunky and hard to navigate. It does offer some video (welcome to the 21st century) and plenty of archived articles and reviews, all of which is much more current, colorful, and searchable than the magazine could ever be. CQ is also trying, buying World Radio News and offering it as a free download.

But I have to worry that the day will come when it is no longer economically feasible to mail me a magazine every month. I still prefer taking that paper-and-stapled pub out on the deck to read, or to Subway at lunch to peruse while I enjoy my Black Forest ham sandwich.

Won’t happen, you say? The traditional magazine will never go away. Okay, can I see your latest copy of Look or Life? Mind if I borrow your Saturday Evening Post?

I rest my case. Truth is, media consumers want their content in a wide variety of ways, and will choose such media on three primary criteria: 1) How easy it is to consume in all those myriad ways, 2) How compelling the content is, and 3) How cheap it is to access.

I’m afraid that does not bode well for QAT and CQ.

73,

Don Keith N4KC
www.donkeith.com
www.n4kc.com
http://n4kc.blogspot.com

 

Don Keith, N4KC, is a regular contributor to AmateurRadio.com and writes from Alabama, USA. Contact him at [email protected].