Archive for the ‘arrl’ Category
RFinder Lifetime Membership
August 21st, 2016 | 
Author: Some very welcome news popped into my inbox this morning from my friend Bob Greenberg, W2CYK. Bob is the owner and founder of RFinder the Worldwide Repeater Directory.
I had the opportunity to meet Bob via social media many years ago when RFinder first launched and have been a fan and supporter of RFinder ever since. I even discussed RFinder in episode 55 of the Practical Amateur Radio Podcast back in May of 2012.
For several years I used the ARRL repeater directory along with their TravelPlus digital version to search for and program my transceivers. While this solution worked very well, it was limited to just the ARRL database. For the traveling ham, this meant being at the mercy of the internet to find information on repeaters in the region and countries visited and this information was not always accurate.
In the time I’ve known Bob and been a user of RFinder, it’s grown to become a truly worldwide solution with partnerships with many national radio societies including the Radio Society of Great Britain, Amateur Radio Society Italia, Deutscher Amateur Radio Club, Radio Amateurs of Canada and the American Radio Relay League (just to name a few). Finally, the current database contains current and validated repeater information from over 175 countries.
RFinder the Worldwide Repeater Directory is available in app form for both the iOS and Android platforms and is also supported by both RTSystems and CHIRP radio programming software. Normally the cost for an annual subscription is $9.95 USD, but for a VERY limited time an RFinder Lifetime Membership is available for $99.99 USD. When I say VERY limited time, I truly mean this offer will not last long. It’s a very good deal.
Until next time…
73 de KD0BIK (Jerry)
RFinder Lifetime Membership
Some very welcome news popped into my inbox this morning from my friend Bob Greenberg, W2CYK. Bob is the owner and founder of RFinder the Worldwide Repeater Directory.
I had the opportunity to meet Bob via social media many years ago when RFinder first launched and have been a fan and supporter of RFinder ever since. I even discussed RFinder in episode 55 of the Practical Amateur Radio Podcast back in May of 2012.
For several years I used the ARRL repeater directory along with their TravelPlus digital version to search for and program my transceivers. While this solution worked very well, it was limited to just the ARRL database. For the traveling ham, this meant being at the mercy of the internet to find information on repeaters in the region and countries visited and this information was not always accurate.
In the time I’ve known Bob and been a user of RFinder, it’s grown to become a truly worldwide solution with partnerships with many national radio societies including the Radio Society of Great Britain, Amateur Radio Society Italia, Deutscher Amateur Radio Club, Radio Amateurs of Canada and the American Radio Relay League (just to name a few). Finally, the current database contains current and validated repeater information from over 175 countries.
RFinder the Worldwide Repeater Directory is available in app form for both the iOS and Android platforms and is also supported by both RTSystems and CHIRP radio programming software. Normally the cost for an annual subscription is $9.95 USD, but for a VERY limited time an RFinder Lifetime Membership is available for $99.99 USD. When I say VERY limited time, I truly mean this offer will not last long. It’s a very good deal.
Until next time…
73 de KD0BIK (Jerry)
Thirty Minutes of Dazzle: The Sun in UHD 4K by SDO (NASA)
Take a front-seat view of the Sun in this 30-minute ultra-high definition movie in which NASA SDO gives us a stunning look at our nearest star.
This movie provides a 30-minute window to the Sun as seen by NASA’s Solar Dynamics Observatory (SDO), which measures the irradiance of the Sun that produces the ionosphere. SDO also measures the sources of that radiation and how they evolve.
SDO’s Atmospheric Imaging Assembly (AIA) captures a shot of the sun every 12 seconds in 10 different wavelengths. The images shown here are based on a wavelength of 171 angstroms, which is in the extreme ultraviolet range and shows solar material at around 600,000 Kelvin (about 1 million degrees F.) In this wavelength it is easy to see the sun’s 25-day rotation.
The distance between the SDO spacecraft and the sun varies over time. The image is, however, remarkably consistent and stable despite the fact that SDO orbits Earth at 6,876 mph and the Earth orbits the sun at 67,062 miles per hour.
Scientists study these images to better understand the complex electromagnetic system causing the constant movement on the sun, which can ultimately have an effect closer to Earth, too: Flares and another type of solar explosion called coronal mass ejections can sometimes disrupt technology in space. Moreover, studying our closest star is one way of learning about other stars in the galaxy. NASA’s Goddard Space Flight Center in Greenbelt, Maryland. built, operates, and manages the SDO spacecraft for NASA’s Science Mission Directorate in Washington, D.C.
Charged particles are created in our atmosphere by the intense X-rays produced by a solar flare. The solar wind, a continuous stream of plasma (charged particles), leaves the Sun and fills the solar system with charged particles and magnetic field. There are times when the Sun also releases billions of tons of plasma in what are called coronal mass ejections. When these enormous clouds of material or bright flashes of X-rays hit the Earth they change the upper atmosphere. It is changes like these that make space weather interesting.
Sit back and enjoy this half-hour 4k video of our Star! Then, share. 🙂
73 dit dit
ARRL Working For LF / MF Future
As the rollout of new LF and MF ham bands grows closer for U.S. amateurs, earlier this month, the ARRL requested the FCC to carefully consider the procedural requirements governing the advance notification of local electric authorities of their intended 630m / 2200m operation. The FCC had suggested that under certain circumstances (mainly the distance to the nearest PLC signal-carrying power lines), amateurs would be required to notify and co-operate with power authorities ... but it was all very vague and seemed to place the conditions under which operating authority would be granted into the hands of the power companies.
In what appears to be a preemptive move to head-off the (possibly) overly onerous and impossible roadblocks suggested by power company representatives, the ARRL filing states:
“ARRL does not object to such a notification requirement, provided that it is appropriately circumscribed, not overbroad in its applicability, and not overly burdensome for radio amateurs to comply with,” the League’s statement asserted.
In addition, the power authority Utility Telecom Council (UTC) has been notably silent on the issue ... slowing the process even further.
"The ARRL noted that comments filed by the Utilities Telecom Council (UTC) called for a system of “quasi-coordination” by radio amateurs before commencing operation on 2200 meters (135.7-137.8 kHz). In its remarks to the FCC, the ARRL pointed out, however, that the UTC has not volunteered any information with respect to how a notification process might work nor offered any PLC database information to the ARRL or to the amateur community so prospective users of the band could determine if their operation might be problematic."
The League took the opportunity to remind the FCC, once again, that the low ERP levels generated by amateurs operating on the new bands would have a low probability of creating any interference and further pointed out that PLC systems operating between 9 and 490 kHz are not subject to protection from licensed services.
The ARRL also indicated that any sort of blanket notification requirement prior to transmitting on 2200 or 630 meters “would be clear regulatory overkill,” and that utility companies should clearly be required to demonstrate how amateur operations would cause harmful interference to their PLC (unlicenced) operations.
It's good to see the ARRL still being proactive with regards to procuring these new frequency allotments on behalf of U.S. amateurs ... hopefully making implementation sooner rather than later. The entire ex parte filing can be read here as well as the ARRL's own news posting of the procedure here.
In the meantime, I'll make yet another call-to-arms to fellow Canadian amateurs, who already have these two new bands but aren't using them ... new activity from the western provinces would be especially welcome as there are a now a number of well-equipped stations in VE7 who would like to work you.
How-To: Send Perfect Morse Code by Hand (Vintage Video)
What is the proper (and most efficient) technique for creating Morse code by hand, using a manual Morse code key? Ham radio operators find Morse code (and the ‘CW’ mode, or ‘Continuous Wave’ keying mode) very useful, even though Morse code is no longer required as part of the licensing process. Morse code is highly effective in weak-signal radio work. And, preppers love Morse code because it is the most efficient way to communicate when there is a major disaster that could wipe out the communications infrastructure.
While this military film is antique, the vintage information is timeless, as the material is applicable to Morse code, even today.
More about Morse code, at my website: http://cw.hfradio.org
Thank you for watching, commenting, and most of all, for subscribing. By subscribing, you will be kept in the loop for new videos and more… my YouTube Channel: https://YouTube.com/NW7US
See my Video Playlist for related Morse code vidoes:
LHS Episode #162: Mumbo Gumbo
Hello there and welcome to the latest installment of Linux in the Ham Shack. For your listening pleasure this fortnight, we have information on politics in the ARRL, opportunities for kids to participate in ham radio and FEMA, adventures in WSPR, a lost Atari 2600 ham radio app, a quick review of SolusOS and much more. Please enjoy.
73 de The LHS Crew
NPOTA – Brrrrrrrrr!
We got a light dusting of snow yesterday, which was a prelude to today. It was sunny and clear, but the winds were blustery and our high temperature for the day was reached last night at Midnight. Ever since then, the temperatures have been dropping. As I type this, it's currently 16F (-9C) outside. While I activated NPOTA, it was 24F (-4C).
I headed out at 11:40 AM to the Washington-Rochambeau National Historical Trail TR23, which we know as Old Raritan Road in Scotch Plains, NJ. I wanted to set up at the historic Frazee House, but that part of Old Raritan Road is currently blocked off for repaving. I settled for operating at the entrance to the Ashbrook Country Club golf course in steady. It's right on the trail, as you can see from the photo above. At the entrance to the golf course is the remnants of a cannon that was used in the Battle of Short Hills in June 1777, as seen in the photo below.
Set up was easy, I've done it so many times at lunchtime at work that I could do it in my sleep. The cold made things a tad more difficult, though; but I was ready to get on the air at Noon (1700 UTC), just as I had planned.
I started out on 20 Meters, using the Buddistick. It really helps to bring a cell phone along on these kind of outings. Having a smart phone enabled me to go onto the DX Summit Website and self spot. Within a few seconds of sending the spot, I was busy handling QSOs. There was never a really deep pileup, but there weren't many lulls either. When a lull hit, I used the opportunity to either change bands, or turn on the car to warm it up a bit. As an experienced QRPer, and being used to working weak signals, you get into the mindset to avoid as much background noise as possible. While I was operating, the engine was off. I would rather be a bit cold than miss another QRPer because of engine noise.
After 20 Meters, I operated on 17 Meters for a while. I had wanted to use 18.086 MHz, but I could tell that was pileup territory for one of the DXpeditions. So I "QRL"ed on 18.072 MHz, and not hearing any answer, I camped out there for a while.
When the Jeep interior cooled down as to start becoming uncomfortable (I'm ALL about comfort!), I took the opportunity to warm the interior up, and to switch from the Buddistick to the 40 Meter Hamstick. I get a better match with the Hamstick, only 1.3:1, which is lower that the 1.8:1 that I get with the Buddistick. I still have to work on finding the ideal combination of arms and whip length for 40 Meters on the Buddistick. 40 Meters was as productive as 20 Meters. Most of the QSOs were made on those two bands, although 17 Meters was not a slouch by any means.
I called it a day at 3:00 PM (2000 UTC) just as I had planned. In the end, I made 88 QSOs, which is actually way better that any Bumblebee or Skeeter outing that I have had, and is not bad for 5 Watts to less than full sized antennas. My best DX was California, Arizona, Puerto Rico and two stations from Belgium. I worked a few of you readers that I know from here, and I thank you heartily for those Qs. I also worked my best friend and Ham Radio mentor, Bob W3BBO. I worked QRP notables Steve WG0AT, Guy N7UN, fellow QRP Fox hunter Chris KQ2RP, and I also worked Kay Craigie N3KN, outgoing President of the ARRL.
But the best QSO of the day was when I worked Dave KD2FSI, who I logged for at Jockey Hollow on Saturday. This was perhaps Dave's second or third CW QSO, maybe? It was a blast to be there and to hear his fist on the air!
All the QSOs have been uploaded to LoTW. I can't wait to activate another NPOTA entity. The bug has really bit now. As the seasons change, and the weather gets warmer, the strategy will change from antennas mounted on the Jeep, to perhaps wires tossed in the trees. The best is definitely yet to come! Thank you Sean KX9X and the ARRL for sponsoring this great program!
72 de Larry W2LJ
QRP - When you care to send the very least!
