Medical devices get FCC approval for 400 MHz

Via Bloomberg BusinessWeek:

Medical devices designed to help paralyzed patients move won U.S. regulators’ approval to use a block of radio spectrum for transmitting wireless signals to incapacitated limbs.

The Federal Communications Commission adopted rules that give access needed by so-called advanced microstimulator devices that use implanted electrodes to stimulate muscles with the help of a wireless controller worn outside the body.

While the devices may be a medical breakthrough, using spectrum that amateur radio has (on a secondary basis) ranging from 413-457 MHz (amateur radio uses 420-450MHz) puts at risk the use that amateur radio employs for public safety and service on the 70cm band. Besides, there is plenty of spectrum available for these devices. Since UPS isn't using the spectrum they asked for from 220-222MHz, why not give it to these devices?

The ARRL has more detailed info, which you can read here.

I'm still around

Yeah, I know, it's been awhile. Fact is, I haven't been on the radio but a handful of times in the last few months. In fact, the most I talked on the radio was this past Thanksgiving while on the way to my in-laws for dinner.

I got on the radio a couple of days prior to that while driving home from work, but one ham whose name I won't mention seemed to think I was intruding on *his* QSO and basically snubbed me. This was after I'd stepped out of my vehicle to get gas and in the middle of a QSO with others that he apparently butted into the conversation on.

It really annoys the hell out of me when people just treat me with no respect when I've done nothing wrong to them. If I have, at least have the balls to man up and tell me to my face what it is you don't like about me...what, did I insult your mother? Take your money? Rob your life savings? B.O.?

Oh well, no sense dwelling on it...in other news, SKYWARN Recognition Day is set for this coming Friday/Saturday and once again I plan to do some overnight operating at the Morristown NWS. So if you plan to operate Friday night/Saturday morning, listen for WX4MRX on the air, chances are you might be talking to me!

Hams in Cinema

I just got back from watching the movie "The Big Year" starring Steve Martin, Jack Black, and Owen Wilson. The trio star as competing bird watchers trying to get the title of most birds seen in a single year.

But naturally, one scene got my attention. There was a scene where they were visiting Attu Island in Alaska. There was a lady operating the radio station/intercom and on a panel to the side of the desk in the background was two QSL cards. One was callsign VK2DG, which I recognized as an Australian callsign, having once worked a VK2 call from outside of Sydney as my first Aussie contact all those years ago.

I had to look it up once I got home and sure enough it was legit.

There was a second QSL card in the shot but I could not get it in time to see what the call was. They showed the cards in a later shot but the other card was obscured by the desk mic. I want to say it was CH6??? but I may be completely off. ITU has that as a Canadian prefix. If anyone else saw the movie (or plans to see it) please let me know.

It's a very entertaining movie, and I highly recommend going to see it, especially if you're a fan of these actors.

FCC Upholds $17,000 Forfeiture Order to Tennessee Ham

Ham radio is one of the more diverse groups in any hobby. From janitors to jockeys, most anyone and everyone can be a ham operator. Among the ranks you will often find the most courteous and polite and respectful operators around.

And then, there's this guy...

In March 2009, the FCC issued a Notice of Apparent Liability for Forfeiture (NAL) in the amount of $17,000 to David Edward Perka, KA3PRB, of Lewisburg, Tennessee. The FCC alleges that Perka "willfully and repeatedly violat[ed] section 301 of the Communications Act of 1934, as amended, by operating without a license in the Maritime Radio Service and willfully violat[ed] Section 333 of the Act by maliciously interfering with the United States Coast Guard on the International Distress, Safety and Calling Channel in Annapolis, Maryland" Perka, who admitted to the findings, requested a reduction in the forfeiture amount, based on his inability to pay, but in a Forfeiture Order released by the FCC on September 21, 2011, the Commission refused to lower the amount.

New religion?

I found this amusing:

Resistance is futile.

W2XOY recounts his 9/11 experience

Like many old enough to remember, we know where we were when we first heard about the horrible events of 9/11 as they unfolded.

Bill Continelli, W2XOY, one of the contributors to This Week in Amateur Radio (TWIAR) was in lower Manhattan on September 11, 2001. He was south of the World Trade Center and heard the 2nd plane as it flew over and slammed into Tower #2.

He gives his recollection of how he used his communications equipment to safely evacuate Manhattan on that horrible day.

Click here to listen to his story, recorded in 2001 (MP3)

Hearing Voices: 9/11 and the Ham Radio Renaissance

As the world remembers and pays tribute to the nearly 3000 victims of the September 11 terrorists attacks a decade ago, I thought I would reference this article from 2003 on how 9/11 brought a "renaissance" to ham radio:

...Sept. 11, 2001, marked a quiet renaissance in the world of amateur radio, after years of declining membership and relative obscurity. Over the past couple of decades, amateur radio operators have witnessed their beloved pastime lose much of its luster. In the early part of the 20th century, hams, as amateur radio operators are also known, were a rogue band of technology buffs who were quick to pick up on Guglielmo Marconi's experiments with then-new wireless technology. They for the most part defied government regulation of the airwaves until World War I, when the U.S. Navy shut down all non-military radio operations.

The full article can be found here.

6500

That's the number of cell towers that lost power or were damaged during Hurricane Irene.  44% of cell towers in Vermont alone were knocked out.

210,000 wired customers were out of service as of Monday afternoon, and 2 TV stations and 10 radio stations were also knocked off the air.

Meanwhile, ham radio's still chugging along for many in the northeast. Thoughts of amateur radio's decline and "ancient" form of communications continues to shine through despite the conveniences of modern technology, which isn't convenient when a natural disaster such as Hurricane Irene takes out the resources needed to communicate.

What's the frequency, Kenneth???

Off and on I've been trying to find a way to listen to the meteor showers that frequently hit the Earth. The idea is that as a meteor hits the ionosphere, it scatters said ions and radio frequency signals that normally would just radiate into space are instead reflected back towards earth. Hams frequently use this method when making contacts via meteor scatter. 

There are web sites set up for people to listen to the NAVSPASUR (Air Force Space Surveillance System) transmitters on 216 MHz. I've not been able to hear the transmitters even though I live close to the facility in Alabama.

I've tried to listen to the meteors using a "poor man's" method of listening to TV signals from stations in other cities like Chattanooga and Bristol, TN. That idea went out the window when the FCC kicked TV stations off the analog frequencies in 2009. I've tried listening to FM radio stations using this method, but the dilemma I have is that, with Knoxville being such a big radio market, practically every available frequency from 88-108 MHz is taken locally.

So now I'm left trying to find any good radio frequency that would work for me to listen to meteors "pinging" the atmosphere. It needs to be outside the Knoxville area, constantly transmitting, and with a high enough power to be heard distinctly when the meteors pass overhead.

If anyone can assist with this quagmire, I'd be most appreciative.

Oklahoma ham loses radio equipment, home to wildfire

Harold Lazear (K5KLM) of Terlton, OK saw the flames coming and hopped on the roof of his home with a hose to try and do whatever he could to fight the inferno from taking his home and its treasure trove of ham equipment he'd collected over the years.

In the end, the fire won the battle.

The flames approached so fast that when Lazear realized he was not going to be able to hold off the fire, he only had time to jump in his pickup and leave without collecting any radio equipment. It all burned to the ground in 10 minutes.

After building up a collection over the years as a storm spotter and Red Cross volunteer, he now finds himself a recipient of aid from the agency he dedicated his volunteer time towards.

People who wish to donate may do so with a credit card at the Red Cross website, tulsaworld.com/okredcross, or by calling 918-831-1170. Checks can be mailed to American Red Cross-Tulsa Area Chapter, Dept. 995, Tulsa, OK 74182. Make checks payable to American Red Cross-Tulsa Area Chapter.

ARISSat-1 launched from ISS, missing UHF antenna

After a 4-hour delay due to issues with a missing UHF antenna, Sergei Volkov, RU3DIS, and Alexander Samokutyaev deployed ARISSat-1 from the Pirs module of the ISS last Wednesday.

While preparing to deploy ARISSat-1, the spacewalking cosmonauts noticed only one antenna protruding from the bird when there should have been 2, one for 2 meters (VHF), the other for 70cm (UHF).

Controllers in Moscow and Houston decided to postpone the deployment to evaluate the issue as the cosmonauts continued with their remaining scheduled spacewalk duties.

Later in the spacewalk, controllers gave the go-ahead for Sergei and Alexander to send ARISSat-1 into space, gently nudging it aft and nadir of the station in order to eliminate the possibility of collision with the station later.

The images posted are actual screen captures taken by ground stations listening for ARISSat-1's SSTV signal. You can see the helmet of Sergei Volkov and a pre-loaded image of the ARISSat-1 logo. Live cam images are captured at various times which will allow for stations on the ground to get a near-real-time static image of what ARISSat-1 is seeing over 200 miles high. If the satellite goes into darkness, the logo images are transmitted.

In addition to SSTV, voice and BPSK at various times. While in the sunlight, it will transmit on high power and near-continuous transmission. While in eclipse, it will go into power-saving mode, transmitting intermittently.

It's not yet known the full extent of the damage to the UHF system (designed to be a linear transponder), however, hams are reporting they are making successful contacts with it.

For now, here are the modes of operation:

• 145.950 MHz FM Downlink: FM transmissions will cycle between a voice ID as RS01S, select telemetry values, 24 international greeting messages in 15 languages, as well as SSTV images.
• 435 MHz - 145 MHz Linear Transponder: The linear transponder will operate in Mode U/V (70 cm up, 2 meters down). It is a 16 kHz wide inverting passband and the convention will be to transmit LSB on the 435 MHz uplink and receive USB on the 145 MHz downlink.
• 145.919 MHz/145.939 MHz CW Beacons: The CW transmissions will be call sign ID RS01S, select telemetry and call signs of people actively involved with the ARISS program.
• 145.920 MHz SSB BPSK-1000 Telemetry: When the CW2 beacon on 145.919 MHz is active, this indicates that the BPSK-1000 format is being transmitted. If the CW1 beacon on 145.939 MHz is active, the backup of BPSK-400 format is being transmitted.

ARISSat-1 is also known as "KEDR", which translates to "Siberian Pine" in Russian. It was Cosmonaut Yuri Gargarin's callsign during his flight which made him the first human being in space. ARISSat-1 was launched to coincide with the 50th anniversary of Gargarin's historic flight. Its callsign is RS01S.

Check out AMSAT's "how-to" page for information on how to operate ARISSat-1.