Archive for the ‘Uncategorized’ Category
Amateur Radio Weekly – Issue 222
ISS SSTV this weekend
Twelve images will be downlinked, but this time with six featuring the SCaN educational activities while the other six images will commemorate major NASA anniversaries.
AMSAT
VP6D Ducie Island seeing too many dupes
They’re seeing “far too many dupes” as they work their way through the pileups.
ARRL
ISS voice active, SSTV from satellite
NASA astronaut Serena Auñón-Chancellor KG5TMT, who is currently on the International Space Station, was active on 145.800 MHz FM making contacts on Saturday, October 20.
AMSAT UK
W5KV’s 2018 Ham Holiday Gift Guide
It’s never too early to start planning gifts for the holidays.
W5KV
Download of DSLWP-B Moon and Earth pictures continues
It was expected that the Earth would be visible in the image, and this was indeed the case.
Daniel Estévez
Global JS8Call Network
I can even have a chit-chat by relaying my messages through stations I can hear, to a station I can’t. JS8Call is not a mode, it’s a system.
OH8STN
Every Amateur Radio Satellite Frequency List
JE9PEL
Knots…
From securing loads to securing antennas, a knowledge of some basic knots is very valuable.
VE7SAR
Video
Meet the Amateur Astronomer who found a lost NASA satellite
Amateur astronomer Scott Tilley made international headlines when he rediscovered NASA’s IMAGE satellite 13 years after it mysteriously disappeared.
Freethink
Monitoring airplane communications
Information and examples how to monitor communications between airplanes and ground using RTL SDR, SDRPlay, SDRConsole and other equipment.
N1SPY
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Need Zone 2 on 40/80m, a Rare DX Contest Multiplier, or IOTA? VY0ERC Can Help!
It’s now October and throughout the northern hemisphere days are getting shorter, nights longer and the temperature is dropping. Consider then that as go you further north this happens in an ever more dramatic fashion. At the North Pole, the first and only sunset of the year happened on 21 September at the autumnal equinox. A scarce 1000 km south of that at 80 degrees north, there is still some daylight as the Sun reaches about 6 degrees above the horizon. That provides enough light to view the pristine environs of Ellesmere Island, around the Eureka Weather Station and the Polar Environment Atmospheric Research Laboratory (PEARL). The PEARL Site Manager and I made our first trip to Eureka in the Fall of 1994 and have repeated the long journey many, many times. Alexey Tikhomirov VE1RUS made his first visit to Eureka and PEARL in 2013, and has returned twice per year since.
Ellesmere is a large, mostly uninhabited island found just west of Greenland in the Canadian Arctic archipelago. It has one small community, Grise Fjord, at its southern tip, and two other notable locations, Eureka and Alert. Eureka is remote by any definition. It is accessible only by chartered aircraft and accommodation is limited and only available through the Eureka Weather Station by prior arrangement. It is an untamed landscape, that some might describe as bleak. It’s located on the northern shore of Slidre Fjord on the bank of Station Creek which is also the source of fresh water.
Looking out from there you see a hilly landscape devoid of trees, with a large ridge both to the east and west. Other than the weather station, humans have never established year round habitation this far north, although the Thule people did spend summers in the area. Remains of their camps are still visible many hundreds of years later. This part of the world does not give up its scars easily, it takes decades for vehicle tracks to fade away.
The vegetation consists of low willow shrubs and grasses and a surprising number of flowers in the summer time. By definition, this is an Arctic semi-desert with less than 30cm of precipitation per year. Many are surprised to hear that Eureka gets relatively little snow. However, as I like to say, “we see every snow flake that falls in the Arctic, and it’s usually going sideways!” Bad weather tends to take the form of high winds resulting in severe drifting in places. Winter time temperatures are typically well into the mid negative 40’s C January through into April, with -50C and lower always a possibility. At 80N, the Sun goes down for good on 20 October and is not seen again until 20 February. From mid April to mid September it is above the horizon for 24 hours a day. In addition to the Arctic weather, Eureka also is impacted by the Earth’s geomagnetic field. The geomagnetic pole is located something like 80 to 100 km east of Eureka, putting it pretty much dead centre in the auroral oval. This has the perhaps unexpected consequence that aurora are not usually visible from Eureka!
Both Eureka and Alert were established as part of the Joint Arctic Weather Stations (JAWS) through a partnership between Canada and the United States of America, in 1947 and 1950 respectively. In the early years, radio was the only means of communication and amateur radio was the means of handling personal communications between station personnel and their families in the south. John Gilbert, VE3CXL, among others served as radio operator arriving in 1956 for a two year stint. The story of those early years can be found in: “70th Anniversary of Amateur Radio at Eureka Part1: The original Station VE8MA” published in “The Canadian Amateur” the journal of the Radio Amateurs of Canada.
Consistent radio operations ended in Eureka sometime in the 1990s, and it was not until VE3KTB operated portable VY0 in 2014 that they resumed in a somewhat consistent fashion. In 2014 VE1RUS also operated as /VY0 and later met VE3CXL to talk about Eureka and the three agreed that it was time to re-establish amateur radio in Eureka in a more established fashion and so the Eureka Amateur Radio Club was formed with VE1RUS as the trustee of the station call, VY0ERC. The story of VY0ERC is described in “70th Anniversary of Amateur Radio at Eureka Part2: The VY0ERC Club Station” .
VY0ERC is currently located within the PEARL Ridge Laboratory (RidgeLab). PEARL is a comprehensive atmospheric observatory sampling various atmospheric parameters from the surface to over 100 km. It is operated by the Canadian Network for Detection of Atmospheric Change (CANDAC) a coalition of scientists from Canadian universities and government departments. PEARL has 3 facilities, the RidgeLab, the Zero Altitude PEARL Auxiliary Laboratory (0PAL) and the Surface Atmospheric Flux and Irradiance Extension (SAFIRE). Instruments located at the 3 PEARL sites include Fourier Transform Spectrometers to measure infrared radiance for determining trace gas amounts in the atmosphere, “Lidars” used to measure ozone and atmospheric particles, radars to measure cloud properties, air temperatures and air turbulence. There are also particle counters, UV spectrometers, a flux tower, and optical instruments that monitor the mesosphere. A more in depth description can be found at the CANDAC web-page, http://www.candac.ca. Being associated with a working and well equipped laboratory is very useful as many tools and supplies necessary for science tend also to be useful for amateur radio. Additionally, PEARL depends upon the most northerly situated geo-stationary satellite link for internet communications.
When VE1RUS and I are on-site, amateur radio activity at VY0ERC spans a wide range. HF SSB contacts can be made most days that the combination of time, weather, and propagation allow. Both are working on improving their CW and so we expect there to be more and more CW contacts. Digital modes, specifically RTTY and FT-8 are also both used. In February/March of 2018, the pair also put a number of grids on the air via FM satellite with contacts across the US and Europe via AO-91 and AO-92. This was made possible through a fund-raising campaign organized by Gabe AL6D and with the guidance of Patrick WD9EWK and encouragement of George MI6GTY. Gabe also offered the use of his TH-72 to make things easier.
One or both of VE1RUS and VE3KTB are on station for about 3-4 months of the year. Their operating schedule is driven mostly by the work schedule. It generally works out that the station is manned for many of the major contests such as CQWW SSB, CQWPX, ARRL DX, WAE RTTY, and usually one of either the IARU HF championship or the IOTA contest. Basically, any reason to get on and give out some contacts is considered a good reason! We are generally open for skeds if you drop us an email at [email protected]. Our non-contesting operating is always proceeded by a spot or two on the clusters.
The VY0ERC station consists of a TS-480HX, a Vectronix single 3-500Z amplifier (donated by Peter VE3AD) , a selection of antenna tuners and a wide range of antennas. The best band for contacts has generally been 20m, where a home-brew Aluminum tube Moxon rectangle is used, rotated by a HAM IV. A Cushcraft R5 vertical is also used on 20m-10m. It also makes for a good receive antenna on 40 and 80m! A variety of wire antennas have been installed and used with limited success on 40m and 80m. These include slopers, inverted V’s and flat-top dipoles, as well as a few other designs such as a full-size wire Moxon for 40m (not very successful) and a 40m half-square. The main challenge with these antennas is the lack of easily attainable height above ground. There are no usable structures other than the roof of the RidgeLab to use in supporting the wires. We hang the wires from a collection of PVC conduit strapped to the railings using bungee-cords. While very low-tech, this attachment method provides enough “give” in the system to allow the antennas to survive much longer than rigid systems in high-wind, heavy frosting and icing conditions. The weather has routinely destroyed each and every antenna put into service at the RidgeLab, despite our best efforts to remove them when we know there will be challenging conditions.
The inability to install low-band antennas at a sufficient height has led us to pursue a strategy of phased verticals for 40m and 80m. These verticals will either be telescoping, or mounted on tilting bases so that they can be quickly lowered –well quickly is relative in the cold of the High Arctic winter– when needed. As we all know, building an antenna farm is never inexpensive, but it is definitely rather more expensive when you factor in the transportation costs to the far north. In an effort to get a stronger signal on 40m and 80m, VY0ERC has initiated a campaign to raise funds to install a phase vertical array for both. You can read about it at www.gofundme.com/vy0erc-on-40-and-80m.
VE1RUS, VE3CXL, and VE3KTB invite any interested amateurs to join VY0ERC and participate in this Arctic Amateur Radio experience. Membership is free!
73!
Pierre VE3KTB
Alex VE1RUS
John VE3CXL
Amateur Radio Weekly – Issue 220
October 7-13: Fire Prevention Week Amateur Radio Special Event
Fire Prevention Week special event stations N0F, N1F, N2F, N3F, N4F, N5F, N6F, N7F, N8F, and N9F will be QRV October 7-13. Plus the wildcard stations: KF2IRE and VE3FIRE.
Siemens Fire Safety USA Amateur Radio Club
An interview with Howard Michel, WB2ITX, the new ARRL CEO
I think that you’ll find this to be a great interview. Howard has won me over, and I hope that he’ll win you over, too.
K6BNU
ARRL, FCC Discussing Uncertified Imported VHF/UHF Transceivers
The Advisory broadly prohibits the ‘use’ of such radios, but our view is that there is no such prohibition relative to licensed Amateur Radio use.
ARRL
A new antenna using single atoms
We may be on the verge of so-called “atomic radio,” thanks to the development of a new type of antenna capable of receiving signals across a much wider range of frequencies (more than four octaves) that is highly resistant to electromagnetic interference.
Ars Technica
Hustler 6BTV Installation Update
While this is a great antenna, it requires a substantial amount of work installed in a ‘ground-mount’ configuration.
W5KV
About Microphones
A primer on mics for Ham Radio.
VE7SAR
Connecting an RTL-SDR Panadapter to a uBITX
uBITX is a fully analogue radio, but it can be combined with an RTL-SDR to create a panadapter display.
RTL-SDR.com
Video
How Solar Cells Work
Today I want to cover solar cells and solar power systems – partly because renewable energy is such a huge pursuit in our community.
SparkFun
Receive Beautiful Images of the Earth Directly From Space | GOES-16
While it’s a bit harder to receive data from GOES the extra effort is absolutely worth it.
The Thought Emporium
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The Spectrum Monitor — October, 2018
Stories you’ll find in our October, 2018 edition:
Tracing the Development of the AM Broadcast Transmitter
John F. Schneider W9FGH
In the Beginning, there was King Spark. There were a few early attempts at using spark equipment to transmit the human voice. This was because a spark signal consists of a continuous sequence of decaying waves, called “damped waves.” The signal faded in intensity as the energy of each spark dissipated, until it was replaced by a new signal from the next spark. In the early 1900s, there were only two devices that were capable of generating a continuous wave – an arc transmitter and a high-frequency alternator. But it was the invention of the “Audion” triode vacuum tube by Lee de Forest in 1906 that created a revolution in radio communications. Its ability to function as both an oscillator and amplifier opened doors to the creation of a practical all-electronic speech transmitter. John takes a detailed look at the evolution of the AM broadcast transmitter.
Has it Really Been a Decade!?
By Troy J. Simpson W9KVR
There’s nothing easy about teaching school anywhere but teaching, coaching, keeping a school amateur radio club going, being a dad and a husband makes time really fly. So much so that Glenn Raymond Middle School teacher, Troy Simpson, hadn’t realized their club station license was already up for renewal until he received the notice from the FCC. Troy recaps just the last few years of this very active and successful amateur radio school club as he prepares this month for another School Club Roundup.
SDR Report Part 3: From High-End SDR Receivers to SDR Transceivers
By Thomas Witherspoon K4SWL
Part one of our series on Software Defined Radios (SDRs), which appeared in the June issue, focused on the nomenclature and components of a functioning SDR system. Part two, in the July issue, took a look at some affordable SDR station options that would propel you into the world of SDRs for less than $200 US. This month, Thomas dives a little deeper into the SDR rabbit hole, and investigates higher-end SDRs as well as ham radio transceivers with embedded SDRs that include high-ticket rigs that have intel-agency specs and capabilities you won’t find in any analog radio at any price.
A Visit to the Tokyo Ham Fair 2018
By Keith Baker KB1SF/VA3KSF
Once again, Keith was asked to join the Dayton Amateur Radio Association team in a trip to Japan to attend the annual Tokyo Ham Fair, which is sponsored by the Japan Amateur Radio League (JARL). As Secretary-Treasurer of AMSAT North America, Keith would be doing double duty during this trip. And, as a regular contributor to TSM, Keith nailed the trifecta with this photo essay of that trip. Keith renewed many old acquaintances, got up close and personal with new ham equipment and enjoyed handing out goodies to everyone he saw.
Scanning America
By Dan Veeneman
Hialeah, Florida, and a Public Service Radio Feud
Federal Wavelengths
By Chris Parris
Hurricane Florence Response
Milcom
By Larry Van Horn N5FPW
Monitoring the US Coast Guard and the COTHEN HF Radio Network
Utility World
By Hugh Stegman
US Coast Guard Mobilizes for Hurricane Florence
Shortwave Utility Logs
By Hugh Stegman and Mike Chace-Ortiz
VHF and Above
By Joe Lynch N6CL
International Space Station Astronauts are Calling CQ Students
Digitally Speaking
By Cory GB Sickles WA3UVV
Nothing Changes if Nothing Changes
Amateur Radio Insights
By Kirk Kleinschmidt NT0Z
Transmit Audio—How’s Your Sound?
Radio 101
By Ken Reitz KS4ZR
Viasat: Help for Rural Broadband Access
The World of Shortwave Listening
By Andrew Yoder
US and International Pirate Shortwave Broadcasters
The Shortwave Listener
By Fred Waterer
Creepy October Shortwave Programming
Maritime Monitoring
By Ron Walsh VE3GO
Stormy Weather and Changing Times
The Longwave Zone
By Kevin O’Hern Carey WB2QMY
SDR, Step One
Adventures in Restoration
By Rich Post KB8TAD
Reviving a Comanche: The Siltronix 1011D
Antenna Connections
By Dan Farber AC0LW
Artificial Ground, Part Two
Radio Horizons
Review: National Radio Club’s 39th Edition AM Radio Log
By Larry Van Horn N5FPW
The Spectrum Monitor is available in PDF format which can be read on any desktop, laptop, iPad®, Kindle® Fire, or other device capable of opening a PDF file. Annual subscription is $24. Individual monthly issues are available for $3 each.
Amateur Radio Weekly – Issue 219
Beta version WSJT-X 2.0 boasts major changes
Support for standard ARRL Field Day exchanges, such as 6A SNJ and “significantly better sensitivity” (about 1 dB) for the WSPR decoder.
ARRL
Fundraising campaign for critical ISS radio infrastructure upgrade
AMSAT and ARISS are currently supporting a FundRazr campaign to raise $150,000 for critical radio infrastructure upgrade on ISS to enable students to talk to astronauts in space via amateur radio.
AMSAT
SOTA and Mental Health – how it’s helping
SOTA, Amateur Radio, and how it is helping me fight depression and anxiety.
Wadeabout
A Step by Step Tutorial to Receiving GOES-16 Images
A step-by-step guide to setting up a GOES weather satellite receiver with an RTL-SDR dongle, Raspberry Pi and the goestools software.
RTL-SDR
Getting on HF: The Fiddle Factor
The Fiddle Factor is the interaction of multiple barriers to getting on HF.
K0NR
Where a choke chokes
Common mode current suspicions. Various tests of the venerable N9TAX dual band ladder line J antenna suggest the coax becomes rf hot at UHF. It was time to quantify this behavior in the lab.
Magnum Experimentum
Run a Raspberry Pi Program on Boot
Our newest (sorta-Python-related) tutorial shows you a few ways to run a script whenever a Raspberry Pi boots up.
SparkFun
Yellowstone Parks On The Air Adventure and Lessons Learned
Cell service is very, very limited in the park. Data service is non existent if you use AT&T like I did. Therefore there was no way for me to self spot on the cluster.
K0PIR
About Microphones
A primer on mics for Ham Radio
VE7SAR
Tesla Opens with Precomputed Key Fob Attack
This hack precomputes a ton of data, looks for a collision in the dataset, and opens the door. Here’s how it works.
Hack A Day
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Amateur Radio Weekly – Issue 218
Preparing Ham Radio response to Hurricane Florence
Amateur radio emergency communications groups throughout North and South Carolina and surrounding areas are gearing up for a possibly massive impact on communications infrastructure.
CQ Newsroom
How to listen to Hurricane Watch Net frequencies
The Hurricane Watch Net is a group of amateur radio operators who are trained and organized “to provide essential communications support to the National Hurricane Center during times of Hurricane emergencies.”
The SWLing Post
Worldwide refractive index forecasts
Maps are fully customizable and show refractive index from 80° S to 80° N worlwide.
Beyond the Horizon
[PDF] Introduction to Amateur Digital Television
High-Definition, Digital, Amateur Television — Confirmation photo showing an image received over a distance of 77 miles using a 3 watt, DVB-T transmitter.
KH6HTV
ARRL September VHF 2018 results
Rain on Saturday, Cloudy and Dry on Sunday. Good fun but exhausting.
K5ND
Electronics concept posters
We’ve covered Ohm’s Law, Alternating Current vs Direct Current and Analog and Digital Signals. Each poster is high-resolution and ready to print out up to 24″ x 36″.
SparkFun Electronics
Virtual serial port options for Ham Radio operators
For Hams looking for a reliable solution to create virtual COM port pairs on Windows.
Eltima
Ham Shack-In-A-Box
With a go box, having all my radios are mounted in a single portable box with the radio gear and power connections set up means I will have much longer to operate – and that much more isn’t left to chance.
Soliloquy Blog
Testing FreeDV: Digital voice over HF
This video shows the 700C mode having the ability to decode with 50% of its carriers removed.
Rowetel
Installing Winlink on a Raspberry Pi
Installing and setting up Pat Winlink on a RPi 3.
KM4ACK
Forwarding WSJT-X QSOs to Ham Radio Deluxe
Setup WSJT-X to forward QSOs to HRD Logbook without having to use additional software. Works with FT8Call too.
K0PIR
Receiving GOES-15,16,17 and Himawari 8 HRIT
In this video we go through the hardware and software needed to receive these gorgeous images and what is contained in the signals we receive.
The Thought Emporium
Video
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QRP from the Lifeguard’s Chair
Tim W3ATB and I went to Ellacoya State Park in Gilford New Hampshire today. He did a Parks on the Air activation… I sat in the lifeguard’s chair and worked France!
The beach is on Lake Winnipesaukee with a gorgeous, expansive view of the surrounding mountains. I saw this lifeguard’s chair and I couldn’t resist. It was under a huge pine tree. So while Tim was 30 yards away working stations for his POTA activation, I heaved a line into a pine tree above the orange high seat.
As soon as I turned on the KX3, I heard Bert F6HKA in France finishing up a QSO. What a hoot! He came back and gave me a 549. I was thrilled.
I called over to Tim and he worked Bert right after I did. I dismantled my station and went over to Tim’s picnic table to help out if I could. We had a lovely picnic lunch at the park and Tim made his ten contacts for the POTA activation.
P.S. Thanks to Tim for the great photos. His account of the outing is here:
https://w3atb.com/ellacoya-state-park-pota-activation-k-2651/