The July/August issue of QEX — the ARRL’s “Forum for Communications Experimenters” — is coming soon, and it is full of theoretical and practical technical articles that you won’t want to miss. Published bimonthly, it features technical articles, columns and other items of interest to radio amateurs and communications professionals. The mission of QEX is threefold: To provide a medium for the …
American Radio Relay League | Ham Radio Association and Resources
Nun setzt sich nach dem IC 2151 auch der IC 2350 in Richtung Erfurt in Bewegung.
Video Rating: 0 / 5
NASA will televise the launch and docking of the next mission to the International Space Station (ISS), scheduled for 8:40 PM (CDT) Saturday, July 14 (0140 UTC, Sunday, July 15). NASA Flight Engineer Sunita Williams, KD5PLB, along with Russian cosmonaut Yuri Malenchenko, RK3DUP, and Japan Aerospace Exploration Agency astronaut Akihiko Hoshide, KE5DNI, are completing preparations as they undergo…
American Radio Relay League | Ham Radio Association and Resources
Richard G3CWI demonstrates on Grisedale Pike.
Video Rating: 4 / 5
A demonstration of how a seperate receiving antenna can help HF radio reception, particularly in urbanised areas where noise is a problem. A large outdoor antenna is best for transmitting but for receiving a small loop can often pick up less noise and allow clearer reception. This is a demonstration of the difference an indoor loop antenna can make when listening to a ZL station in a contest on 160 metres.
Recent upgrades to the ARRL’s Internet system has caused access to both the W1AW EchoLink Conference Server W1AWBDCT and W1AW’s IRLP Node 4292 to be temporarily suspended. Access to both W1AW systems can be expected by month’s end. We apologize for the inconvenience.
American Radio Relay League | Ham Radio Association and Resources
SV2DOF’s APRS with APRS/CE 1.02, a PDA (windows mobile 6) and a Kenwood TM-D700E working through a bluetooth to serial dongle. It’s a FireFly Bluetooth Serial Adapter (RN-240F) from Roving Networks See (unfortunately in greek) at users.pie.sch.gr a hires photo and links Same configuration and ext. battery power (4×1.2V NiMH) worked OK with a Kenwood TH-D7E
Video Rating: 4 / 5
Following in the footsteps of various other states, Illinois Governor Pat Quinn signed HB 1390 — a state-level PRB-1 law — on June 30, effective immediately. PRB-1 (as codified in Section 97.15(b)) was released by the FCC in 1985 and states that “[s]tate and local regulation of a station antenna structure must not preclude amateur service communications. Rather, it must reasonably accommodate…
American Radio Relay League | Ham Radio Association and Resources
For GMDSS System
M. Walter Maxwell, 93, died July 3, 2012 at his home in DeLand, Florida of natural causes. Walt was best known in the Amateur Radio realm for his ground-breaking series of articles, “Another Look at Reflections.” Published in QST in seven parts from 1973 to 1976, the series explained in plain English concepts such as line loss, SWR, baluns and antenna tuners. The articles were later compiled in…
American Radio Relay League | Ham Radio Association and Resources
Swapped a 2004 Civic LX Cluster in my 98 Ek GSR
Solar activity jumped way up this week, with the average daily sunspot numbers increasing by nearly 92 points to 118.1, while the average daily solar flux rose to 138.5 from 92.8 the week before. One new sunspot group appeared on June 29, another on July 1 and two more on July 4. Sunspot numbers for June 28-July 4 were 73, 97, 90, 137, 165, 136 and 129, with a mean of 118.1. The 10.7 cm flux wa…
American Radio Relay League | Ham Radio Association and Resources
Some of my 6M qsl cards, more vids to follow as I have many more qsl cards to show.I’ve added audio clips they are 6M dx stations I worked via F2 propagation during the cycle 23 peak.Some of the audio quality isn’t the best but at the time I was using a cassette recorder, I now have a digital recorder which does a much better job. 73 VE3TMG
Beginning Friday, July 6 at approximately 1 PM (EDT), the ARRL’s Information Technology Department will be changing the configuration of the League’s Internet services. This will involve Domain Name System (DNS) address changes for a variety of servers at ARRL Headquarters. According to ARRL Information Technology Manager Michael Keane, K1MK, there may be some short, intermittent interruptions …
American Radio Relay League | Ham Radio Association and Resources
HF Army surplus antenna linked to a Kenwood 480SAT working HF.
SPAWAR Systems Center Pacific has developed a technology that uses the magnetic induction properties of sodium chloride (salt) in sea water to create UHF/VHF/HF antenna.
Video Rating: 4 / 5
By Stan Horzepa, WA1LOU
Contributing Editor
This week, Surfin’ finds out which way the wind blows — and which way the propagation flows — at the revamped National Weather Service website.
As hams, we seem to be more interested in the weather than average people. Besides wanting to know what’s falling out of the sky and when, we follow the weather because it affects radio propagation in both a n…
American Radio Relay League | Ham Radio Association and Resources
IGEL presents first SoC thin client with exceptional multimedia performance …
The IGEL UD2-LX MultiMedia, which fits in IGEL's current smallest housing, features a system-on-chip (SoC) platform based on a Texas Instruments 1.0 GHz ARM Cortex A8 processor. The SoC also integrates a digital signal processor (DSP) in order to …
Read more on Ervik.as
DSP Digital Design Engineer – ASIC – Bristol
DSP Digital Design Engineer sought to join a world-renowned Semiconductor organisation based in Bristol. As part of a world-class Engineering team the successful candidate will be tasked with creating DSP processor cores for large, complex SoCs.
Read more on ElectronicsWeekly.com
AMD opens five-year window for embedded x86 processors
Read The Magazine. Latest Issue: 4 – 17 Jul, 2012 · Get Electronics Weekly. Electronics Weekly newsletters Get these stories direct to your inbox – sign up for free E-newsletters >> For more on microprocessor, MCU, and digital signal processor (DSP …
Read more on ElectronicsWeekly.com
M. Walter Maxwell, 93, died July 3, 2012 at his home in DeLand, Florida of natural causes. Walt was best known in the Amateur Radio realm for his ground-breaking series of articles, “Another Look at Reflections.” Published in QST in seven parts from 1973 to 1976, the series explained in plain English concepts such as line loss, SWR, baluns and antenna tuners. The articles were later compiled i…
American Radio Relay League | Ham Radio Association and Resources
Altera's Industry-proven Quartus II Software Delivers Up To 4X Faster Compile …
New digital signal processing (DSP) support with DSP Builder v12.0–Communicates with DDR memories from MATLAB via System Console and uses new floating-point functions for improved design productivity and greater DSP efficiency. Improved Video …
Read more on MarketWatch (press release)
Six-axis sensor fuses accelerometer with magnetometer
By housing its magnetometer and accelerometer in the same package with a digital signal processor (DSP), enabling higher accuracy sensor fusion, Freescale Semiconductor Inc. hopes to capture a bigger share of the $ 1.5 billion market for e-compasses …
Read more on EE Times
Freescale Completes First Generation of QorIQ Qonverge Base Station-on-Chip …
The B4420 device delivers a leap in performance by integrating two dual-threaded Power Architecture(R) e6500 processor cores running at 1.6 GHz and two StarCore digital signal processor (DSP) SC3900 flexible vector processor cores running at 1.2 GHz, …
Read more on MarketWatch (press release)
The Diamond DXCC Award, celebrating the 75th anniversary of DXCC, has proven to be popular around the world. Nearly 700 applications have been filed, with K3RA presently sitting atop the list with 200 of the 231 possible entities in the log. Some incredibly rare places have been on the air in 2012 so far, including Tibet and Socotra Island!
Recently ARRL has been able to add some additional to…
American Radio Relay League | Ham Radio Association and Resources
National Weather Service Spotter Class in Sioux Falls SD (KFSD) note: in order to become a skywarn spotter you MUST attend an actuall class
Wayne County,Michigan Skywarn Activation 6/21/08
Video Rating: 3 / 5
Thanks to an extremely dry season, portions of Colorado have been ravaged by wildfires. As of July 5, only a handful of the fires are considered extinguished or fully contained, with the majority considered still active. According to InciWeb, almost 170,000 acres are affected by 11 active fires. Since June 9 — when the High Park Fire, the first of the wildfires began — hams in Colorado have b…
American Radio Relay League | Ham Radio Association and Resources
MADE IN THE USA – This Genuine Times Microwave USA Made LMR-240 coaxial cable was developed to provide an extremely low loss alternative with the transmission characteristics of hardline coaxial cables and the flexibility required for WiFi, Ham and CB Radio installations. Times Microwave systems, designs and manufactures high performance coaxial cables, connectors and cable assemblies for a broad range of RF transmission applications. For more than 50 years, Times has been the leader in the deve
List Price: $ 24.99
Price: [wpramaprice asin=”B005S4D21W”]
[wpramareviews asin=”B005S4D21W”]
Beginning Friday, July 6 at approximately 1 PM (EDT), the ARRL’s Information Technology Department will be changing the configuration of the League’s Internet services. This will involve Domain Name System (DNS) address changes for a variety of servers at ARRL Headquarters. According to ARRL Information Technology Manager Michael Keane, K1MK, there may be some short, intermittent interruptions …
American Radio Relay League | Ham Radio Association and Resources
A short recording of PSK31. Software used: DM780, part of Ham Radio Deluxe (free).
Recieving SSTV on 20meters band Yaesu FT-857D DM780 HRD v5.0 Beta
Video Rating: 5 / 5
Amateur Radio Emergency Services, with Harvey Wirth (VE5HAW) and Terry White (VE5 TLW)demonstrating the mobile command post, used for various events, including the security at some of the Saskatchewan RoughRider Games and mostly developed for Emergency Communication when tragedy or disaster strikes. Used by Amateurs’ to come to the rescue to provide the necessary communication for police, fire and ambulance personel.
Video Rating: 0 / 5
Four new poll questions have just been published on the QuickStats page on the ARRL website. Let your voice be heard!
Questions in this month’s QuickStats poll:
American Radio Relay League | Ham Radio Association and Resources
Hands-on with Sony's New Google TV Player
For example, you can use the trackpad to scroll up and down (either on the right edge or two-finger scroll), but you can also use the directional arrow keys on the other side of the remote. You can click with the trackpad, or you can scroll over to the …
Read more on Tom’s Guide
Monster fire terrorizes a Colorado city
Maria drew an arrow on a photograph showing their neighborhood, flames devouring houses everywhere. “Our home,” it said in white lettering. They still could not tell if they had been spared. The fire, fueled by high winds and hot, arid weather …
Read more on WTVR
SBA Communications buying towers in .45B deal
The transaction comes a little over four months after SBA announced that it would buy more than 2300 antenna tower sites in the U.S. and Central America from Mobilitie LLC for $ 1.1 billion in cash and stock. SBA, which is based in Boca Raton, Fla …
Read more on ksl.com
Toronto Maple Leafs: Why Defenseman Morgan Rielly Was an Amazing Pick
There may be a few good passers on the team, but I can count the number of excellent passers on the team with my left antenna. And boy, does the kid … Full 2012 Draft Grades for Maple Leafs Hint: you can use arrow keys to navigate through this channel.
Read more on Bleacher Report
Radiosport fans are gearing up for the summer’s biggest HF competition: the IARU HF World Championship. This 24 hour long contest is the highlight of the summer HF contesting season, with plenty of opportunity to work DX from all around the globe on CW and SSB. Participants also get the chance to make QSOs with many IARU Member Society club stations and officials.
“The IARU HF Championship is on…
American Radio Relay League | Ham Radio Association and Resources
A few nice ARRL images I found:
Split Rock ARA Field Day 2007
Image by bigtowers20
Split Rock Amateur Radio Association ARRL Field Day 2007
Horseshoe Lake, Roxbury Township, NJ
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
Electro Magnetic Interference EMI10 Part-7
Video Rating: 0 / 5
DISCOUNT LINK www.amazon.co.uk Product Description PGV11003 Profigold Oxypure The Profigold range of HDMI cables are exceptional quality and this 3 metre HDMI-A to DVI-D cable is no exception. The Oxypure series from Profigold has 99.9997% Single Crystal Copper which allows for an unsurpassed level of clarity of signal transfer and the 24k Gold Plated copper terminals ensure optimum transition without loss or degradation of quality.There are several key features with a Profigold Interconnect:OCC – 99.9997% Pure Single Crystal Copper ensures the lowest possible signal loss for superior analogue and digital video signals in the original recordingInterference Absorption Technology – The Unique IAT eliminates all possible Electro Magnetic Interference (EMI), for noise free, unmatched ultra clean picture performance.Silver Twist Lock Connection – The Twist Lock Connector technology, and the patented Metal Alloy Plug will perfectly embrace and lock on the sockets of your equipment, avoiding accidental disconnection and delivering purest picture quality.Nylon Braiding – Flexible Nylon braided PVC jackets offer maximum cable protection, lifetime reliability and easy installation.
The wait is over! After weeks of beta testing, the ARRL launched the integration of Logbook of The World (LoTW) — its electronic confirmation system — with CQ Magazine’s Worked All Prefixes (WPX) Award on Monday, July 2. The WPX Award is the first of the CQ-sponsored awards that LoTW will support. More than 51,000 radio amateurs worldwide use Logbook of The World, and there are currently almo…
American Radio Relay League | Ham Radio Association and Resources
Waleska, GA Jan 31, 2010 Rode up to check on our ARES Repeater and thought I’d capture some interesting video. Sorry for shaky video, I was in a hurry to document the situation at the site. For info on our Amateur Radio Emergency Service Group checkout www.cherokee-ares.org
Video Rating: 5 / 5
This is a condensed edited video of me running the Utah county ARES (Amateur Radio Emergency Service) net.
ARRL Headquarters will be closed in observance of Independence Day on Wednesday, July 4. There will be no W1AW bulletin or code practice transmissions that day. League Headquarters will reopen Thursday, July 5 at 8 AM Eastern Daylight Time. We wish everyone a safe and festive holiday weekend.
American Radio Relay League | Ham Radio Association and Resources
APRS-CE Sending/receiving locations, messages, and other data via amateur radio. Demo connection aprs-ce in IPAQ wince via tcp/ip – net.
OK, Bob Bruninga WB4APR basically has one presentation that he tweaks a little depending on the topic and the audience. He had three presentations at the DCC, and each was a variation on the same talk! This is #1. Than there’s the ‘Intro to APRS’ session, and his part of the Sunday Seminar. If you watch all three, you’ll get something new from each. And your head will be spinning.
The winner of the June QST Cover Plaque award is Dennis Johnson, KF0QR, for his article “A 160 and 75/80 Meter Folded Dipole.” Congratulations Dennis! The QST Cover Plaque award — given to the author or authors of the best article in each issue — is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. Cast a ballot for your favorite article in the July issue today.
American Radio Relay League | Ham Radio Association and Resources
Radio Amateur Receiver needing a fix job. Watch and see how it was done. It would have cost over £100 and the price of a switch to fix. I used 3 in 1 oil but WD40 works as well as switch cleaner does. Enjoy this video.
Video Rating: 5 / 5
Compiled by S. Khrystyne Keane, K1SFA
ARRL News Editor
k1sfa@arrl.org
This feature — including convenient Web links to useful information — is a concise monthly update of some of the things ARRL is doing on behalf of its members. This installment covers the month of June.
The ARRL Board of Directors approved a new 9 cm band plan. The ARRL UHF/Microwave Band Plan Committee offered a proposed 23 cm…
American Radio Relay League | Ham Radio Association and Resources
AMAZON UNITED KINGDOM DISCOUNT LINK www.amazon.co.uk Product Description Mitex General The Mitex Licenced Two Way Radio G Flex 2 Headset Pack (includes 2 headsets) Powerful 5 watt for increased range & clarity Up to 10km indoor/city use Up to 25km outdoor/open spaces Compact & durable Pre programmed and ready to use from the box Licence form included in the box Included in the box – 2 radio’s, 2 aerials, 2 chargers, 2 belt clips, 2 wrist straps & 1 licence form.Unit Technical SpecificationFrequency range (Preset by Mitex) 403-470MHZNumber of channels (Preset by Mitex) 16CHSpan of channels (Preset by Mitex) 25KHZ / 12.5 KHZStep of channels (Preset by Mitex) 5, 6.25KHZWorking Voltage 7.2V DC +/- 20%Battery Lithium Battery (1100mHA)Working temperature 20? to +60?Frequency stability +/-2.5ppm (-20? to +60?)Antenna Impedance 50?Dimensions 52 x 28 x 100mm (not including bulge)Weight 200g (including Battery and antennaIf you are an individual, small business or club, one licence at £75 gives 5 years service for all the radios you own.
Video Rating: 0 / 5
Seems like Ham Radio is making a huge resurgence since all the scientific and religious apocalyptic predictions keep gaining strength and awareness.
Video Rating: 4 / 5