Weekly Propagation Summary – 2016 Mar 21 16:10 UTC
Here is this week’s space weather and geophysical report, issued 2016 Mar 21 0054 UTC.
Highlights of Solar and Geomagnetic Activity 14 – 20 March 2016
Solar activity ranged from very low to low levels during the period. Low levels were observed on 15, 16 and 19 March due to isolated, weak C-class flares from Regions 2521 (N19, L=029, class/area Dao/080 on 14 Mar) and 2522 (N14, L=078, class/area Cao/040 on 15 Mar). No Earth-directed coronal mass ejections were observed in coronagraph imagery.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at moderate levels on 14, 15 and 19 March and high levels on 16-18 and 20 March.
Geomagnetic field activity ranged from quiet to minor storm levels (G1-minor). The period began with quiet conditions, but increased to unsettled to minor storm levels late on 14 March due to the onset of a co-rotating interaction region (CIR) in advance of a coronal hole high speed stream (CH HSS) that originated from a negative extension off of the southern crown. With the CIR, wind speeds rapidly increased from about 360 km/s to near 565 km/s by late on the 14th. The interplanetary magnetic field (IMF) responded with total field (Bt) readings of 23 nT while the Bz component rotated between +18 nT to – 19 nT.
Geomagnetic field conditions remained elevated through 18 March with quiet to minor storm levels. Solar wind conditions also remained enhanced with wind speeds that approached 600 km/s midday on the 17th. Bt and Bz relaxed by early on 15 March with Bt fairly steady at 10 nT with Bz varying between +/- 8 nT. 18 and 19 March saw quiet to active levels due to prolonged periods of southward Bz. During this time frame, wind speeds averaged about 425 km/s.
Forecast of Solar and Geomagnetic Activity 21 March – 16 April 2016
Solar activity is expected to be at very low levels with a chance for C-class activity throughout the outlook period.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be high levels on 21-22 March, 04-06 April and 12-16 April. Normal to moderate levels are expected for the remainder of the outlook period.
Geomagnetic field activity is expected to reach G2-moderate storm levels on 02 April with G1-minor storm levels expected on 03, 11-13 April due to the influence of recurrent, negative polarity CH HSSs. Quiet to unsettled conditions are expected for the remainder of the outlook period under a nominal solar wind regime.
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Episode 207- Icom IC-2730 Review
In this episode, Martin M1MRB / W9ICQ is joined by Ed Durrant DD5LP and Andy Mace M0MUX to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief, and this episodes feature is a review of the Icom IC-2730 Review by Chris Howard M0TCH.
- Radio Ham Licensed for 75 years
- Remote Controlled Short-Wave Receiver
- Belgium gets WRC15 5 MHz allocation and 4m extension
- 434 MHz Balloon Flies over North Africa
- G0KSC Wins RSGB Award Again
- Millions of UK TVs to Become Obsolete
- School SSTV CubeSat to Deploy from ISS
- UK Space Spectrum Strategy Consultation
Colin Butler, M6BOY, is the host of the ICQ Podcast, a weekly radio show about Amateur Radio. Contact him at info@icqpodcast.com.
Episode 207- Icom IC-2730 Review
In this episode, Martin M1MRB / W9ICQ is joined by Ed Durrant DD5LP and Andy Mace M0MUX to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief, and this episodes feature is a review of the Icom IC-2730 Review by Chris Howard M0TCH.
- Radio Ham Licensed for 75 years
- Remote Controlled Short-Wave Receiver
- Belgium gets WRC15 5 MHz allocation and 4m extension
- 434 MHz Balloon Flies over North Africa
- G0KSC Wins RSGB Award Again
- Millions of UK TVs to Become Obsolete
- School SSTV CubeSat to Deploy from ISS
- UK Space Spectrum Strategy Consultation
Colin Butler, M6BOY, is the host of the ICQ Podcast, a weekly radio show about Amateur Radio. Contact him at info@icqpodcast.com.
I had hoped for better results
I got to the park on time, right before Noon (1600 UTC). I allowed my TomTom GPS unit to bring me up to Jockey Hollow via a new route which I had never taken before. This brought me up through the Great Dismal Swamp, which is designated as a National Wildlife Refuge. It is truly a beautiful area and as I was driving through, I could see herons and egrets and all sorts of birds in the marshes. Seeing that the Great Dismal Swamp is designated as a National Wildlife Refuge, I was wondering why it's not listed as one of the NPOTA WR entities. A little Googling revealed that the Swamp is administered by the United States Fish and Wildlife Service and not the National Parks Service. That's a shame because that would be a really beautiful area to set up a portable operation from.
Anyway, I got to the Park and got set up, which by now, only takes me a few minutes. After so many lunch time QRP sessions, I could do this in my sleep, or with my eyes shut.
Since I was planning on operating some SSB in case there was a lack of activity, I brought along my big, heavy Werker deep cycle battery. I figured that this way, I could operate for an extended period of time at the 10 Watt SSB level if I needed to. And boy, did it turn out that I needed to!
The first thing I did after setting up was tune to around 14.061 MHz - the neighborhood of the QRP Watering Hole. I was shocked by what I heard - wall to wall CW signals! There was literally nowhere to sit where there wasn't a station calling "CQ TEST". I didn't realize that today was the RUDX, the Russian DX Contest - and boy, it filled the band!
I went on up to 17 Meters and heard some Europeans that were very loud. Knowing that meant the band was wide open, I easily found a clear spot at 18.082 MHz and proceeded to call "CQ NPOTA". The band was wide open, but as it turned out, there wasn't much if any activity. I worked K0IG right off the bat and then ...... nothing.
Not wanting to waste too much time, I got out of the Jeep and switched from the Buddistick to my 40 Meter Hamstick. I went down to 7.037 MHz, called CQ and was greeted by the normal NPOTA pileup. I was stoked and began to work station after station. The only bad thing was that the initial pileup lasted for only a few minutes, and then I began the monotonous routine of calling "CQ NPOTA" and waiting minutes in between answers.
Getting bored, I decided to give 20 Meters another try. Off came the Hamstick and up went the Buddistick. I called CQ for a bit and got a couple of QSO completed on 14.060 MHz, but it was tough. The stations calling me were loud, but their calls were being blanketed by even louder DX stations. Those guys had to be using mondo power. How much do they allow over in Europe, anyway?
Sitting there, disappointed as heck, I was ready to pack it in and head home a bit early. Then an inspiration occurred that maybe I should give 20 Meter SSB a whirl. Even though I'm not an avid fan of SSB, I decided to give it a shot. I was rewarded with a small run of about a dozen stations before that too, ended up petering out.
I had gone up to HP28 with a spiral notebook, thinking I would fill pages with call signs. After all, my outing to TR23 in January netted me over 80 QSOs. For some reason. I was thinking I would break that record easily. Just the opposite happened! I ended up with only 27 QSOs - but you know what? I discovered that a bad day of Amateur Radio is STILL better than a good day at work. So I'm a happy camper, anyway.
This only gives me more incentive to go back up to HP28 later this year, but this time throw a wire into a tree. I know that's kind of verboten, and on Facebook, someone actually related how they were asked to leave a park the other day for doing that. With that in mind, just before I left, I went to the visitor center and explained that I was an Amateur Radio operator and what NPOTA was (she knew what it was, by the way) and asked if there was any prohibition about wires in trees. She said as long as it was temporary, and would cause no damage and would not interfere with anyone else's visit, that they were OK with it.
So when I got back to the car, just for the heck of it, I attempted to launch a line over a limb just to see how it would go. 30 plus feet on the first try.
I'll be back, Jockey Hollow!
72 de Larry W2LJ
QRP - When you care to send the very least!
Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at w2lj@arrl.net.
I had hoped for better results
I got to the park on time, right before Noon (1600 UTC). I allowed my TomTom GPS unit to bring me up to Jockey Hollow via a new route which I had never taken before. This brought me up through the Great Dismal Swamp, which is designated as a National Wildlife Refuge. It is truly a beautiful area and as I was driving through, I could see herons and egrets and all sorts of birds in the marshes. Seeing that the Great Dismal Swamp is designated as a National Wildlife Refuge, I was wondering why it's not listed as one of the NPOTA WR entities. A little Googling revealed that the Swamp is administered by the United States Fish and Wildlife Service and not the National Parks Service. That's a shame because that would be a really beautiful area to set up a portable operation from.
Anyway, I got to the Park and got set up, which by now, only takes me a few minutes. After so many lunch time QRP sessions, I could do this in my sleep, or with my eyes shut.
Since I was planning on operating some SSB in case there was a lack of activity, I brought along my big, heavy Werker deep cycle battery. I figured that this way, I could operate for an extended period of time at the 10 Watt SSB level if I needed to. And boy, did it turn out that I needed to!
The first thing I did after setting up was tune to around 14.061 MHz - the neighborhood of the QRP Watering Hole. I was shocked by what I heard - wall to wall CW signals! There was literally nowhere to sit where there wasn't a station calling "CQ TEST". I didn't realize that today was the RUDX, the Russian DX Contest - and boy, it filled the band!
I went on up to 17 Meters and heard some Europeans that were very loud. Knowing that meant the band was wide open, I easily found a clear spot at 18.082 MHz and proceeded to call "CQ NPOTA". The band was wide open, but as it turned out, there wasn't much if any activity. I worked K0IG right off the bat and then ...... nothing.
Not wanting to waste too much time, I got out of the Jeep and switched from the Buddistick to my 40 Meter Hamstick. I went down to 7.037 MHz, called CQ and was greeted by the normal NPOTA pileup. I was stoked and began to work station after station. The only bad thing was that the initial pileup lasted for only a few minutes, and then I began the monotonous routine of calling "CQ NPOTA" and waiting minutes in between answers.
Getting bored, I decided to give 20 Meters another try. Off came the Hamstick and up went the Buddistick. I called CQ for a bit and got a couple of QSO completed on 14.060 MHz, but it was tough. The stations calling me were loud, but their calls were being blanketed by even louder DX stations. Those guys had to be using mondo power. How much do they allow over in Europe, anyway?
Sitting there, disappointed as heck, I was ready to pack it in and head home a bit early. Then an inspiration occurred that maybe I should give 20 Meter SSB a whirl. Even though I'm not an avid fan of SSB, I decided to give it a shot. I was rewarded with a small run of about a dozen stations before that too, ended up petering out.
I had gone up to HP28 with a spiral notebook, thinking I would fill pages with call signs. After all, my outing to TR23 in January netted me over 80 QSOs. For some reason. I was thinking I would break that record easily. Just the opposite happened! I ended up with only 27 QSOs - but you know what? I discovered that a bad day of Amateur Radio is STILL better than a good day at work. So I'm a happy camper, anyway.
This only gives me more incentive to go back up to HP28 later this year, but this time throw a wire into a tree. I know that's kind of verboten, and on Facebook, someone actually related how they were asked to leave a park the other day for doing that. With that in mind, just before I left, I went to the visitor center and explained that I was an Amateur Radio operator and what NPOTA was (she knew what it was, by the way) and asked if there was any prohibition about wires in trees. She said as long as it was temporary, and would cause no damage and would not interfere with anyone else's visit, that they were OK with it.
So when I got back to the car, just for the heck of it, I attempted to launch a line over a limb just to see how it would go. 30 plus feet on the first try.
I'll be back, Jockey Hollow!
72 de Larry W2LJ
QRP - When you care to send the very least!
Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at w2lj@arrl.net.
Saturday Morning On Radio Row
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New York City |
As a young shortwave-crazed kid in the 50's, there was nothing that I looked forward to more than the weekend and being able to stay up as late as I wanted, tuning the bands on my big old GE cathedral ... high up in my third-floor attic bedroom shack. But number two on the list was my weekly Saturday morning trip, by bus, to Vancouver's north Granville Street and then on to the library. There I could read the latest radio magazines as well as look at their huge archived collection of earlier issues.
In the 50's, there was a three block strip of radio shops on the north end of Granville street, just after the bridge into downtown Vancouver.
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Granville Street |
During this same time span, once or twice per year, the family would pile into Dad's old Chevrolet and we would make a road-trip to Seattle. Unlike the present, our Canadian dollar was worth more than the American dollar back then, so there were always some great shopping bargains to be found. I recall there being a number of old radio shops as well as several surplus stores just south of Pike Street, on 1st Avenue as well as a few more, one or two blocks down the hill toward the docks. Maybe these were the last vestiges of Seattle's version of 'Radio Row'.
Of course nothing compares with the original 'Radio Row', located in the lower Manhattan district of New York City. It was born along with radio itself and by the early 30's the Cortlandt Street neighbourhood was blanketed with shops selling radios to consumers and components to builders. A Saturday morning trip to the Cortlandt Street paradise was a ritual for hundreds of radio fanatics for more than four decades, as seen in this timely old film taken one typical (Saturday?) morning on New York's 'Radio Row' ... what an amazing time it must have been!
From "The Death of New York's Radio Row", by Syd Steinhardt :
"Radio Row's popularity peaked in the 1950s. Its proximity to the New Jersey ferry docks and the financial district, combined with the advent of new consumer electronics goods and postwar demand, attracted floods of shoppers to the area every day except Sunday. To service their customers, stores opened at 7:00 a.m. on weekdays and closed late on Saturdays.
Radio Row was not a neat and pretty sight. Block upon block over 300 street level stores, with over three times as many enterprises in the floors above them were jammed into 20 to 25-foot storefronts, up and down streets such as Albany, Carlisle, Greenwich and Liberty. Their shelves and floor spaces were packed with vacuum tubes, condensers, transistors and other high-tech bric-a-brac for ham radio enthusiasts and do-it-yourselfers. It was, as the New York Times called it in 1950, "a paradise for electronic tinkerers." "
By the mid sixties, only a few radio shops remained and after some very bitter court battles, the remaining merchants were 'bought out' and the Cortlandt Street area was cleared so that construction could begin on the World Trade Center's twin towers. Today, the area is now home to One World Trade Center, the tallest building in the U.S.A. and to the 9/11 Memorial ... now all sacred ground.
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courtesy: New York Port Authority |
I was in New York City, three years after 9/11 and recall looking with much sadness into the multi-block deep hole in the ground ... how much happier it must have been there, back on those wonderful Saturday mornings, on 'Radio Row'.
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at ve7sl@shaw.ca.
Amateur Radio Weekly – Issue 103
Tytera MD-9600 DMR Digital Mobile Radio
Tytera has introduced a new mobile two way radio capable of operation in both digital and analog modes.
Cricket Ventures
In depth: Icom IC-7300 review
Icom IC-7300 is the first direct sampling SDR (software defined radio) available from one of the “big three” Japanese manufacturers.
YO9IRF
FreeDV 2400A
Two new FreeDV modes for VHF/UHF.
Rowetel
SM2000 update (turning your $35 HT into a digital radio)
KA8BMA has been working steadily on the CAD work for the SM2000 VHF Radio.
Rowetel
The Amateur Radio Operators Preparing for the Worst
In natural or man-made disasters, ham-radio enthusiasts put their hobby to work.
The Atlantic
The first transatlantic communication cables
The TAT-1 system would have two cables, one for east-west traffic, the other for west-east calls. The core of each cable was a single coaxial cable with a solid copper center conductor
Hack A Day
Over the horizon radars becoming routine on Amateur HF bands
A 50 kHz wide Russian OTH radar has been heard in the evening on 80 meters, often in the CW part of the band.
ARRL
Raspberry Pi QRP TX Shield for WSPR
The QRPi board is an inexpensive way of turning a Raspberry Pi single-board computer into a QRP transmitter.
Tucson Amateur Packet Radio Corp
IC-7300 — A Game Changer
While traditional receiver designs utilize Local Oscillators, LO, these Analog to Digital converter, ADC, devices have become the heart of the IC-7300 receiver design.
Icom
Listen for ISS with Raspberry Pi 3 and SoDeRa
Receive amateur radio transmissions from the International Space Station.
AMSAT UK
Carrington Probabilities
His estimate of the probability of another Carrington event is surprisingly high.
VE7SL
Our hobby in 30 years?
An aging population will not buy so many rigs, will not support magazines. Numbers will fall. Activity will fall.
amateurradio.com
ARRL on Instagram
The official Instagram account for ARRL, the National Association for Amateur Radio in the US.
Instagram
Stuart Sizer: Heathkit designer
Stu Sizer––”stylist, artist, maker of models, bon vivant”––was tasked with crafting Heathkit’s user-friendly and attractive exterior designs.
The SWLing Post
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.