Posts
Yuri Bodrov, UT1FG, has been operating maritime mobile while aboard a commercial ship Silver, now heading north, possibly increasing chances of making a contact with him. Frank Griffin, K4FEG, and Rick Tillman, WA4NVM, contacted UT1FG when he was sailing in grid FG43 during a 2 minute pass on the venerable AO-7 satellite (Mode B). His next port will be Punta Patache, Chile (FG49). It’s possible…
American Radio Relay League | Ham Radio Association and Resources
Two astronauts and a cosmonaut returned safely to Earth from International Space Station today. The Expedition 37 crew of European Space Agency Astronaut Luca Parmitano, KF5KDP; Russian ISS Crew Commander Fyodor Yurchikhin, RN3FI, and NASA astronaut Karen Nyberg landed in a Soyuz spacecraft in the Kazakhstan steppe, returning in the same spacecraft that took them to the ISS last May.
They carrie…
American Radio Relay League | Ham Radio Association and Resources
Dmitry Pashkov, UB4UAD, reports that the Amateur Radio slow-scan television (SSTV) experiment onboard the International Space Station has been active for the past couple of days on 145.800 MHz FM, mainly while the ISS is above Moscow. UB4UAD says that on October 31, RSØISS will transmit SSTV images showing images from the life and work of the first cosmonaut, Yuri Gagarin.
Stations can view the …
American Radio Relay League | Ham Radio Association and Resources
Preparatory to a “DXcursion” to Albania, a team of operators in Kosovo will fire up Z6ØA for the first time November 1 through November 3 on SSB, 14.210, 21.310 and 28.510 MHz, operating split as needed. Special emphasis will be given to Japan and the US.
Operators will include Vjollca, Z61VB; Ali, Z61DD; Driton, Z61DX, and Fehmi, Z62FB. Some new hams will participate as well. A special QSL car…
American Radio Relay League | Ham Radio Association and Resources
Screen Captures from HAMCAP – DX ATLAS. Propagation from XF4 on 20 meters.
The Arduino is connected to the server of the Reverse Beacon Network and gets the actual data and displays them on an RGB shield. Description, filters and so…
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Jay Oka, JA1TRC, reports that XZ1Z returned to the air a day earlier than expected from Naypyidaw, Myanmar (Burma), the nation’s capital. Two stations are on the air, with Zorro, JH1AJT; Champ, E21EIC; and Ted, JJ1LIB, as operators.
Operation is primarily on CW and focused to the Americas. Wire antennas are in place for 160, 80, 40, 30 and 17, as well as a triband Yagi. Oka says he plans to upda…
American Radio Relay League | Ham Radio Association and Resources
Didnt make it to the SPE Annual Reception? Catch all of the entertainment here.
Video Rating: 0 / 5
Rx degeneration de1103 & 39″ wire thrown in tree in Walden Wood.
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US Astronaut Chris Cassidy, KF5KDR, and Russian Cosmonaut and Expedition 36 Commander Pavel Vinogradov, RV3BS, came safely back to Earth from the International Space Station September 11 aboard a Soyuz capsule. Cosmonaut and Flight Engineer Alexander Misurkin rounded out the trio that landed in Kazakhstan after 166 days in space.
A day earlier, Vinogradov handed over command of the ISS to anothe…
American Radio Relay League | Ham Radio Association and Resources
This video shows live reception of Slow Scan Television transmitted from the International Space Station. The receiver chain consisted of USRP+TVRX, GNU Radi…
An unidentified ham in Edmonton, Alberta, Canada, avoided serious injury or worse after falling July 16 from a ham radio tower he was disassembling. The man, whom media reports called “a certified tower expert” fell backward from the tower and became trapped about 35 feet in the air. The Edmonton Journal quoted District Fire Chief Lorne Corbett: “He had on the proper harness, that’s what saved …
American Radio Relay League | Ham Radio Association and Resources
This is an issue with Hyundai i20 ASTA with AVN. The system hangs while playing Video / Audio from a USB drive. It happens mostly when honking, taking turns …
Video Rating: 3 / 5
Single Feed 2m/70cm dual band Yagi.
Amateur Radio will be a part of the 2013 Boy Scouts of America National Jamboree, July 15-24, when some 40,000 Scouts and leaders are expected at the Summit Bechtel Reserve in Mount Hope, West Virginia. K2BSA will be on the air, primarily on SSB and PSK31, as a demonstration station and to offer radio merit badge training and other activities. The West Virginia reservation will become the perma…
American Radio Relay League | Ham Radio Association and Resources
For a full FM Bandscan from this great DX-location, please visit http://site.voila.fr/fmdx/rakovica.htm . LOCATION: The village of Rakovica in NW Bulgaria, i…
30-04-2012.
The annual WX4NHC On-the-Air Station Test from the National Hurricane Center (NHC) in Miami will take place Saturday, June 1, 1300-2100 UTC (9 AM-5 PM EDT). “The purpose of this annual station test is to test all of our radio equipment, computers and antennas using as many modes and frequencies as possible in preparation for this year’s hurricane season,” said WX4NHC Assistant Amateur Radio Vol…
American Radio Relay League | Ham Radio Association and Resources
Skywarn net audio from the 4-25-2011 tornado outbreak in central Arkansas.
KE5HQU makes another contact as W5A during the SKYWARN Recognition Day event that took place December 2-3, 2011 at the National Weather Service in North Litt…
Arrl’s VHF/UHF Antenna Classics: Practical Design and Construction Details from the Pages of Qst
— Build your own portable, mobile and fixed antenna designs–
ARRL’s VHF/UHF Antenna Classics includes antenna project articles gathered from the 1983 to 2003 issues of QST. Designs include ground planes, J-poles, mobile antennas, Yagis and more. Authors include well-known antenna designers such as L. B. Cebik, W4RNL, Dick Stroud, W9SR and Steve Powlishen, K1FO.
VHF and UHF antennas are among the smallest and often easiest antennas to build. Many of the projects included in this book
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After spending 143 days in space, Expedition 34 Commander Kevin Ford, KF5GPP, Russian Soyuz Commander Oleg Novitskiy and Russian Flight Engineer Evgeny Tarelkin (both of the Russian Federal Space Agency) will begin their voyage home to Earth on Thursday, March 14, marking the end of Expedition 34 on board the International Space Station (ISS). The trio will undock their Soyuz spacecraft at 8:30…
American Radio Relay League | Ham Radio Association and Resources
Signal of KP4AO from Arecibo (Portorico) reflected by the Moon on April, 18 2010 and received in North-East Italy. Our equipment was: Yaesu FT-817 and 10 elements Yagi. KP4AO equipment was about 400 Watts output and the famous 305 mt dish antenna of the Arecibo observatory. Mode: digital JT65.
Video Rating: 5 / 5
Skywarn audio from ham radio during the 4-25-2011 tornado outbreak in central Arkansas.
skywarn tornado
Video Rating: 3 / 5
Using software MultiPSK (from FR), a Samsung Netbook (KR), and Target/NASAmarine HF3 receiver (UK), i decode the navigation warnings from Hamburg Coastguard (DE). Can’t really get more multicultural/international than that 😉
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This is the ARRL DX SSB Contest. I filmed a little station and Contesting overview and tour, during the end of the contest. I had to compress the file a little to fit on YouTube, so the image quality is not so good. Please watch the whole thing, because I work a few station near the end. Thanks for Watching 73.
Video Rating: 4 / 5
Here is a short pan across our campsite at 5600′ atop Santiago Peak in Orange County, CA. Darin and I setup a nice HF + VHF station the previous night. Equipment was a YaesU FT-857d and a Kenwood TS-520. The antenna was a 102″ G5RV setup as inverted-v. The metal pipes you see sticking out of the ground are viewfinders for popular landmarks like Catalina Island, Mt Palomar and Mt Wilson.
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After more than eight years as the ARRL Media and Public Relations Manager, Allen Pitts, W1AGP, has retired. During his tenure, Pitts was responsible for developing public relations campaigns that featured the many facets of the Amateur Radio Service: Hello Radio came first in 2006 and highlighted the fun and friendships of ham radio. It was followed by Emergency Radio, which built on the ARRL …
American Radio Relay League | Ham Radio Association and Resources
The ARRL wants to hear from kit builders about simple useful, educational and exciting kits. These kits should have a high probability for success and would serve as stepping stones for more advanced projects. We are looking all sorts of kits, but RF detector kits that work in the 380 MHz-2.5 GHz range are of special interest. The kits should also have a “Wow, I built this and it works!” factor…
American Radio Relay League | Ham Radio Association and Resources
IOTA News from OPDX
Activity will be holiday style using SSB and CW, and perhaps some RTTY. During the weekend of September 1st, they will join the local OZ5GX group from Saeby, Denmark, during IARU region One Field Day as OZ5GX/P. QSL Manager for OV2T is PA0ABM, …
Read more on Southgate Amateur Radio Club
A little sample from the QSL Template editor. Dont look at the colors , would let you see ,how you chance colors.. And you see on the “radio” the BACK button…Back to the LOGBOOK Gr Geert 13HS575
Video Rating: 5 / 5
While at NAB in Las Vegas April 2012 I had a chance to sit down with Kirk Harnack, host of This Week in Radio Tech on the TWiT.tv network and have a chat. We just chatted about ham radio, Kirk’s learning PSK-31, my Youtube video background and a bit about networking. Fun time, with absolutely no pre-planning! You may watch the entire show at; twit.tv Also, please watch Ham Nation with Bob Heil K9EID, Gordon West WB6NOA, and George Thomas W5GDX at: twit.tv
Video Rating: 5 / 5
Demo of LD-1B software-defined radio (SDR) hardware with Winrad SDR software. This was recorded around sunset (5:55 PM) local time, 22:55 UTC on 29 December 2010. The antenna was an MFJ Super Hi-Q Loop which tunes 7 MHz – 21 MHZ. The antenna is horizontally mounted at about 25 feet above ground. The soundcard was an E-Mu 0202 sampling at 192 kHz. The demo begins on 20 meters, with the LO set to 14.0625 MHz and the receiver tuned to some PSK-31 signals around 14.07 MHz. Next, some CW signals, first using the SSB filter followed by the CW filter. The display is zoomed in to facilitate tuning with the narrow filter. Back to the SSB filter, and the LO is shifted into the 20 Meter phone band. Next, the AM filter, and WWV at 15 MHz. Next, 40 meter CW, first using the SSB filter, then demonstrating the CW filter’s capability to separate weak signals from nearby strong signals. Finally, a little shortwave broadcast listening in the “tropical band” This is outside the tuning range of the antenna, so signal levels are somewhat lower than one might expect. For more information about the LD-1B, go to www.lazydogengineering.com To order an LD-1B, got to shop.lazydogengineering.com The fluctuations in signal level and some of the buzzing and clicking sounds that are heard intermittently are due to retuning the magnetic loop antenna when the LO frequency is shifted. Thanks for watching my videos, and be sure to visit http 73, Pete Goodmann, PE, MSEE, NI9N www.lazydogengineering.com www …
Just a little experiment – decoding RTTY from webSDR audiostream using fldigi software. To my surprise it just works.
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Per Enge [Professor of Aeronautics and Astronautics, Stanford University] Abstract: These days, GPS is used by all of us, and our application space is partially spanned by the following far-flung examples. Several hundred million GPS chip sets were shipped as part of cell phones last year, where they added about to the bill or materials. These will support consumer applications like location specific advertising. The same chip sets will save lives when associated with an emergency call from a distressed citizen. In addition, GPS is included in every new Boeing or Airbus jet, and these receivers cost over 000 each. The cost is dominated by the non-recurring cost associated with certifying a receiver for navigation at night or in bad weather. These GPS applications include location transactions of high value. The value may be economic or safety related. As this trend continues, the conspicuous vulnerabilities of GPS become more important. The GPS signals originate in medium earth orbits. After they have completed their 20000 kilometer journey to Earth, they have a received signal power of approximately 10^(-16) Watts (-160 dBW). These signals can be readily overwhelmed by inband transmissions from terrestrial sources. This radio frequency interference (RFI) can be scheduled (for military testing), accidental (eg harmonics from broadcast television), or malevolent. Malevolent RFI is also known as jamming and is routine for the modern car thief. GPS signals can also be …
Problem manifest itself in the moment after you release push to talk button and station don’t stop to transmitting. This is specifically for 2 meters band and not for 70 centimeters. You can see interesting videos on Youtube how to fix it with soldering capacitor on switch in the microphone housing. This is pretty good solution. I’ll explain why the problem exist and how to fix it on easier way if you are not so good friend with soldering iron. Explanation is easy if you know something about antennas. So, the problem is with RF (radio frequency interference). Why? The length of cable between headset connector and microphone/switch enclosure is 1 meter. In this cable you have one wire for ground, one wire for PTT button, one wire for microphone and one wire for speaker. So when you look two wires – ground and PTT you get beautiful full wave antenna for 2 meter band. You start transmitting and radio waves keep to make noises which radio use like the PTT button is pressed. One solution is to solder capacitor to switch in mic enclosure to change resonant frequency of (headset) wire antenna. Another way is to attenuate RF interference with feritte choke. Putting ferrite choke is noninvasive and pretty cheap solution. Thanks for watching! 73 Tom, 9A5TOM
AD6IW, Goran working OK1DFC, Zdenek on 1296 MHz with a huge signal by bouncing signals off the moon using the 97 foot Jamesburg Dish in Carmel Valley, California
Three members of the Expedition 31 crew undocked from the International Space Station and returned safely to Earth Sunday, July 1, wrapping up a mission that lasted almost seven months on the International Space Station (ISS). Russian Commander Oleg Kononenko, RN3DX, along with NASA Flight Engineer Don Pettit, KD5MDT, and European Space Agency Flight Engineer Andre Kuipers, PI9ISS, landed their…
American Radio Relay League | Ham Radio Association and Resources
By ARRL Youth Editor Sterling Coffey, N0SSC
n0ssc@arrl.net
As I wrote about in last month’s column, everyone finds his or her own niche in Amateur Radio. It can be as simple as having an mobile rig in the car that you might turn on every once in a while, doing nothing but listen to numbers stations or regularly working the Amateur Radio satellites, or “birds.” For me, I find fun in everything!
Som…
American Radio Relay League | Ham Radio Association and Resources
Stranded woman rescued from dinghy after pilot overhears distress …
Stranded woman rescued from dinghy after pilot overhears distress call. STV 25 … However, listening in on the frequency was a Royal Navy helicopter pilot who …
Read more on stv.tv
Respect for Water Cuts Risk of Drowning
If the statistics took into account the frequency of exposure to swimming … and still others thought the victim was faking distress or “playing around” underwater.
Read more on New York Times (blog)
State Digest
Prosecutors say Berry admitted he called for help on the maritime distress frequency in November 2010, claiming there were three people on board his sinking …
Read more on San Francisco Chronicle
www.hamradiofinds.com Here is a video of a Cushcraft ASL2010 ham radio log periodic antenna that was removed from a 50ft tower..The video shows the antenna on the tower & then on the ground..I couldn’t show the actual lowering because I was part of the crew.. The tower monkey is my brother Tim KE5CFZ..We both work for a ham radio store called Kcomm here in San Antonio, Texas..One of the enjoyable things about our job is that we get to go on field trips, installing towers, antennas as well as removing antennas & towers..We also do mobile radio installs both at the store as well as in the field.. Thanks for looking..73s, Mel WA5UTK
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The ARRL Executive Committee met on Saturday, March 24 in St Louis, Missouri. The minutes from that meeting are now available on the ARRL website.
American Radio Relay League | Ham Radio Association and Resources
IOTA News from the Deutscher Amateur Radio Club
If possible they will also try to make some RTTY and PSK31-QSO's. QSL only direct via AJ4RW. On Apr 5û8, Joe,K5KUA/5, will be QRV again from Galveston Island (USi TX001S, Galveston County) mainly in SSB on 80m-10m and maybe also some CW.
Read more on Southgate Amateur Radio Club
Triathlon DX Contest announcement
Actually, trying here to simulate the original Triathlon athletic event, we involved three major ham radio modes, SSB, CW, RTTY. It will be a 24 hour non-stop event divided in three sections, each one devoted to a different mode.
Read more on Southgate Amateur Radio Club
Voice Over Cash – Untapped Make Money From Home Niche!
Teaches You How To Make Money In Your Spare Time In The Voice-over Industry. One Of A Kind Guide Selling Like Hot Cakes – People Are Eating It Up!
Voice Over Cash – Untapped Make Money From Home Niche!