QRP from the Ashland Railroad Station

Judy and I stopped by the Ashland Railroad Station today after visiting a blueberry field. I worked eight stations in the NA QSO Party and a station in Bulgaria. It was a gorgeous afternoon.

station

The station is one of the stops along the Plymouth and Lincoln Railroad that runs between Northfield and Lincoln, New Hampshire. The old depot is a museum now. The train makes regular stops there during the foliage season in the fall when the passengers disembark to tour the museum.

I tossed a 28 foot wire into a maple tree on the other side of the tracks and sat down on the platform with the KX3. I work part-time on the railroad as a conductor and know the train schedules.

jim3

The caboose in the background belongs to Brian, KA1JOZ who also works on the railroad. I started out on 20 meters. There were plenty of signals and the propagation was pretty good for a change. The North America QSO Party was in full swing and it was easy to make contacts. I seemed to have a pipeline to Minnesota. Here’s my log:

1 Aug-15 2011 14.019 NA0N CW 599 599 MN
1 Aug-15 2014 14.030 N0AT CW 599 599 MN
1 Aug-15 2016 14.033 N2UT CW 599 599 NM
1 Aug-15 2017 14.027 WO4O CW 599 599 Fl
1 Aug-15 2019 14.024 W9IU CW 599 599 IN
1 Aug-15 2020 14.019 K0MPS CW 599 599 MN
1 Aug-15 2021 14.018 K0AD CW 599 599 MN
1 Aug-15 2024 18.076 LZ73TRC CW 599 599 Bulgaria
1 Aug-15 2027 14.027 WA4PHC CW 599 599 NC

rig

At one point I switched to 17 meters to see how the activity was. I heard LZ73TRC calling CQ. He was strong, and we had no trouble making a nice QSO. I operated for about 20 minutes and packed up.

jim


Jim Cluett, W1PID, is a regular contributor to AmateurRadio.com and writes from New Hampshire, USA. Contact him at [email protected].

More ‘Hydroponic’ RF

courtesy: arrl.org
I see that the ARRL has filed three more formal complaints to the FCC concerning the bone-crushing HF emissions being produced by off-the-shelf grow light ballasts. The complaint also includes detailed lab data collected on all three devices and it is not pretty. One wonders why it is necessary at all that the ARRL be the industry watchdog instead of the FCC ... why aren't they being more diligent in filtering out these products before they hit the market? If importers and dealers are simply bypassing regulations for the sake of a quick-buck, then heavy fines must be imposed until someone 'gets the message'.

Some of the test products were ordered and purchased through Amazon and through Sears ... the ARRL's thorough report makes it obvious that rules are being ignored and amateurs are paying the price.

“The level of conducted emissions from [these devices] is so high that, as a practical matter, one RF ballast operated in a residential environment would create preclusive interference to Amateur radio HF communications throughout entire neighborhoods,” ARRL General Counsel Chris Imlay, W3KD, wrote in each complaint. The devices exceeded conducted emission limits under all test conditions, “sometimes by extreme margins, throughout most of the HF range ...”


In a similar vein as its recent complaint about marketing of certain RF lighting devices by The Home Depot, the ARRL pointed out that there were no FCC labels on two of the devices mentioned nor any FCC compliance information “anywhere in the documentation, or in or on the box, or on the device itself,” in violation of FCC Part 18 rules.

The League asked the FCC to require removal of all such illegal “grow light” devices from retail sale and marketing and the recall of those devices already sold or available for retail sale, and it said the device importers should be subject to a forfeiture proceeding.

With the proliferation of both legal and illegal 'hydroponic' operations, this kind of QRN is probably just the tip of the iceberg. It's good to see the ARRL slowly pounding away at the rule-breakers on behalf of American amateurs.

I see these same devices being sold on E-Bay, where presumably, they could be purchased worldwide and installed anywhere. As well, several of the U.S. online dealers state "We ship to Canada" ... just great.

Hopefully Industry Canada and RAC are gearing-up for the fight.

Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].

Amateur Radio Weekly – Issue 71

Amateur Radio Parity Act has 93 cosponsors
ARRL Headquarters has forwarded 3,433 letters to 402 individual US House members, seeking their cosponsorship of H.R. 1301.
ARRL

Coming soon: 146.52 MHz in ARRL VHF contests
Brian Mileshosky N5ZGT, ARRL Director of the Rocky Mountain Division, reported that the ARRL has decided to remove the prohibition of 146.52 MHz in VHF contests.
K0NR

Why 30 Meter APRS?
A case study on 30m APRS vs the 2m APRS network.
The Kentucky Packet Network

Comparing RTTY, PSK and MFSK
Using the ARRL field day test message to compare RTTY, PSK and MFSK digital modes.
HamRadio.me

FUNcube Certificate of Achievement and QSL Card
Those who have successfully received telemetry from FUNcube-1 and uploaded it to the Data Warehouse are able to download these documents.
AMSAT UK

Understanding LF and HF Propagation (PDF)
This PDF is a series of features that formed a good introduction to the topic.
G0KYA, G3NYK

Raspberry Pi packet/digital mode open hardware
Ham Radio sound card interface for the Raspberry Pi or other microcontrollers.
Reddit

Android balloon tracker and modem app
Ground tracking app for high altitude balloons, complete with RTTY modem, offline mapping, online distributed listener integration, chase car location reporting and more.
Google Play

Arduino CW decoder
This is arguably the simplest part of the project. I simply downloaded the sketch and uploaded it to the Arduino.
Amateurradio.com

Icom America club station revealed
I’m pleased to report that a number of our employees are regularly getting on the air and we’re looking forward to activating a few contests as well.
Icom

How to

Google Earth with NWS and APRS using KML
I wanted to find an easy way to integrate mapping, radar data, and APRS tracking data for SkyWARN events.
Robert Andrews

Simple one-chip regenerative receiver
You might be surprised that you can convert an audio amplifier to a receiver using just a handful of components.
Hackaday


Amateur Radio Weekly is curated by Cale Mooth K4HCK. Sign up free to receive ham radio's most relevant news, projects, technology and events by e-mail each week at http://www.hamweekly.com.

Amateur Radio Newsline Report 1970 July 31 2015

  • RADIO REGULATION: TWO FCC CRACKDOWNS
  • UPDATE: DATE SET TO END VANITY FEE
  • RADIO RECIPROCITY
  • PIMA COUNTY GETS PREPARED
  • IRELAND'S NODE FOR NEWS
  • DEVELOPING NATIONS GET GRANTS
  • CASSIOPE FIELD DAY RESULT
  • STUDENTS BREAK FOR LAUNCH
  • ALL'S FAIR IN RADIO AND WAR
  • RADIO RESEARCH: HAARP GETS A TRANSFER
  • DX NEWS
  • FROM MISSILES TO A MISSION

 SCRIPT

AUDIO

 

 



Stunning Video of the Sun Over Five Years, by SDO

Watch this video on a large screen. (It is HD). Discuss. Share.

This video features stunning clips of the Sun, captured by SDO from each of the five years since SDO’s deployment in 2010. In this movie, watch giant clouds of solar material hurled out into space, the dance of giant loops hovering in the corona, and huge sunspots growing and shrinking on the Sun’s surface.

April 21, 2015 marks the five-year anniversary of the Solar Dynamics Observatory (SDO) First Light press conference, where NASA revealed the first images taken by the spacecraft. Since then, SDO has captured amazingly stunning super-high-definition images in multiple wavelengths, revealing new science, and captivating views.

February 11, 2015 marks five years in space for NASA’s Solar Dynamics Observatory, which provides incredibly detailed images of the whole Sun 24 hours a day. February 11, 2010, was the day on which NASA launched an unprecedented solar observatory into space. The Solar Dynamics Observatory (SDO) flew up on an Atlas V rocket, carrying instruments that scientists hoped would revolutionize observations of the Sun.

Capturing an image more than once per second, SDO has provided an unprecedentedly clear picture of how massive explosions on the Sun grow and erupt. The imagery is also captivating, allowing one to watch the constant ballet of solar material through the sun’s atmosphere, the corona.

The imagery in this “highlight reel” provide us with examples of the kind of data that SDO provides to scientists. By watching the sun in different wavelengths (and therefore different temperatures, each “seen” at a particular wavelength that is invisible to the unaided eye) scientists can watch how material courses through the corona. SDO captures images of the Sun in 10 different wavelengths, each of which helps highlight a different temperature of solar material. Different temperatures can, in turn, show specific structures on the Sun such as solar flares or coronal loops, and help reveal what causes eruptions on the Sun, what heats the Sun’s atmosphere up to 1,000 times hotter than its surface, and why the Sun’s magnetic fields are constantly on the move.

Coronal loops are streams of solar material traveling up and down looping magnetic field lines). Solar flares are bursts of light, energy and X-rays. They can occur by themselves or can be accompanied by what’s called a coronal mass ejection, or CME, in which a giant cloud of solar material erupts off the Sun, achieves escape velocity and heads off into space.

This movie shows examples of x-ray flares, coronal mass ejections, prominence eruptions when masses of solar material leap off the Sun, much like CMEs. The movie also shows sunspot groups on the solar surface. One of these sunspot groups, a magnetically strong and complex region appearing in mid-January 2014, was one of the largest in nine years as well as a torrent of intense solar flares. In this case, the Sun produced only flares and no CMEs, which, while not unheard of, is somewhat unusual for flares of that size. Scientists are looking at that data now to see if they can determine what circumstances might have led to flares eruptions alone.

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 as well as on Earth (disrupting shortwave communication, stressing power grids, and more). Additionally, studying our closest star is one way of learning about other stars in the galaxy.

Goddard built, operates and manages the SDO spacecraft for NASA’s Science Mission Directorate in Washington, D.C. SDO is the first mission of NASA’s Living with a Star Program. The program’s goal is to develop the scientific understanding necessary to address those aspects of the sun-Earth system that directly affect our lives and society.

https://www.youtube.com/watch?v=zXN-MdoGM9g


Tomas Hood, NW7US, is a regular contributor to AmateurRadio.com and writes from Nebraska, USA. Contact him at [email protected].

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