AmateurRadio.com

Yesterday President Obama shocked everyone at a follow-up press conference on healthcare reform by acknowledging a connection between amateur radio and the healthcare reform plan just signed.

"Today the Shortwave Intelligence Task Force, a part of the CIA, intercepted radio transmissions in what is known as '80 meters', an amateur radio communications band.  Several amateur radio hams discussed the details in the healthcare reform package to harvest organs from aging ham radio operators."  Upon hearing this the press corp chuckled but was interrupted by Obama who raised his hand and gave a serious look across the audience.  "The claims are true.  Amateur radio operators are crucial to healthcare reform.  A large portion of healthcare costs are due to patients with failing organs and there just aren't enough organ donations to support the growing need.  Nearly every other modern civilized country in the world has universal healthcare.... and they all harvest organs from their ham radio operators."

The media, understandably, was abuzz after the announcement.  CNN reported last night that they attempted to determine the exact source of the amateur radio transmissions in order to interview the radio amateurs who discovered the sinister plan, but were unsuccessful, noting the amateurs were part of a secret organization known simply as "Four Land".  On Fox "News", Glenn Beck spent the first half of his daily TV show explaining the difference between broadcast radio and ham radio and them proceeded to sob uncontrollably for the remaining half hour mumbling something about his kidneys.  Rush Limbaugh, who has been off the air for the past week attempting to find a new home in a country that, in his words "has running water and electricity but not socialized medicine", didn't do a live radio show but I'm curious what he has to say.

ARRL praised the plan on their website but reminded amateurs that they could not receive renumeration for donating organs while on the air.
Anthony Good, K3NG, is a regular contributor to AmateurRadio.com and writes from Pennsylvania, USA. Contact him at [email protected].

One of the things I have long wanted to do in this hobby is build a hand-held transceiver. I tried once back in the 1970s but the receiver didn’t work and the project eventually ended up in the garbage. Many months ago while browsing Roger G3XBM’s website I came across an old project of his called the Fredbox, a small, low-power hand-held 2m transceiver. This rekindled my desire to try to make my own VHF handy transceiver so I started the process of accumulating the parts that would be needed to make my own Fredbox.

However there were two problems. Roger designed the Fredbox as an AM (amplitude modulation) transceiver, a mode that was probably still in common use back in the 1970s when he first made it. Here, the only chance of making a contact with such a radio is if it transmits on 145.500 in FM mode, so I would have to modify the transmitter to produce FM instead of AM.

The other problem is that the Fredbox transmitter is crystal controlled. The days when suppliers advertised crystals for popular FM frequencies in RadCom at reasonable cost have gone, along with the crystal controlled transceivers that used them. I didn’t know where to obtain the crystal I would need but hoped that someone might have crystals from an old 2m radio that they wanted to get rid of.

My luck seemed to be in when, a couple of months ago, someone started selling batches of 2m crystals from old Japanese radios on eBay. I bid for and obtained three batches containing crystals for 145.450, 145.500 and 145.550MHz. I don’t know what radios these crystals were originally for or what oscillator circuit they were used in but by using the XBM80 as a test oscillator it appeared that most of the transmit crystals oscillated at around 12.1MHz.

I tried breadboarding the first oscillator stage of Roger’s Fredbox circuit in order to experiment with ways of FM-ing the signal but the crystal did not seem to be oscillating. I did some searching for other 2m FM transmitter circuits in the hope of getting some inspiration and came across one using an MC2833P IC – a complete FM transmitter on a chip. This seemed like the ideal solution, especially as the crystal used to get 144MHz output was 12MHz just like the crystals I had. Unfortunately I couldn’t find a supplier of this chip until on a whim I typed the part number into eBay. There was someone selling one chip! I ordered it and it arrived in the post this morning.

I built up the circuit from the application note on my breadboard (as you can see in the photo) but to my dismay I could not detect any signal when using any of my 2m TX crystals. It was very disheartening. I didn’t know if the chip was dead, whether I’d blown it by accidentally shorting together wires from components on the breadboard, or whether it was just a very fussy circuit. I experimented with different components and coils and got nowhere. I was just going for lunch when I had the idea to try one of my QRP CW frequency crystals. I had one for 10.106MHz and another for 14.060MHz. With both of those crystals I could detect not just a strong carrier on the fundamental frequency but also plenty of output in the 140MHz region. The chip is working, the problem is my eBay crystals!

The question is, what to do now? I guess the crystals I bought, being probably 35 years old, have deteriorated with age and are reluctant to oscillate. It appears that the only way to proceed with the project is to get a brand new 12.125MHz crystal custom made, if possible.

Julian Moss, G4ILO, is a regular contributor to AmateurRadio.com and writes from Cumbria, England. Contact him at [email protected].

Due to having been banned from using the software I have not been keeping up with what is going on in the development of the ROS digital mode. However there have been a few interesting postings about it. In the digitalradio Yahoo group Skip KH6TY has posted the results of some tests conducted with ROS on 432MHz which appear to show that it suffers badly from the effect of doppler shift and flutter experienced at those frequencies, failing to decode over paths where Olivia was successful and even SSB was readable.

This has prompted a rebuttal from the ROS author, which however seems to overlook the problem of doppler distortion encountered by Skip. He has posted a series of comparisons between ROS 2250/8 and Olivia 32/1000 which purport to show that ROS holds up while Olivia prints garbage. He concludes: “The difference between both systems is about 5dbs (3.16 in natural units). This means that ROS8 need 3.16 times less power than OLIVIA 32/1000 to establish a QSO to 150 characters/minute.”

Assuming that this is true, I nevertheless feel that a tradeoff of bandwidth for power or speed is inappropriate in the context of the narrow HF band allocations for digital modes. Most amateur QSOs do not need to go at 150 characters/minute (most people can’t type that fast). On the other hand the 2250Hz wide ROS transmission blocks three channels that could be used for Olivia 32/1000, and even more channels that could be used for a narrower mode. The use of 2250Hz ROS effectively limits the number of people who can simultaneously hold a digital QSO.

Even if it is true that Olivia needs 3 times the power than ROS to get through, Olivia is still a better choice of mode in the real world, because it is easier to increase the power 3 times or to switch to a slower mode than to find extra space within the HF allocations to accommodate the use of such a wide mode.

ROS would be less of a problem if people used it only in circumstances where it would not be possible to communicate using a narrower mode. Unfortunately that discipline does not exist among today’s radio amateurs. People are using ROS to make contacts with others whose signals are strong enough that 30Hz wide PSK31 could be used. This is just selfish, and it is the reason why I feel that such a wide digital mode should not be permitted on HF at all.

Julian Moss, G4ILO, is a regular contributor to AmateurRadio.com and writes from Cumbria, England. Contact him at [email protected].

I removed my Rip Curl 4×3 wetsuit from storage and discovered some serious funk growth since my last session. My sabbatical from surfing was more of a sabbatical from physical fitness in general. I was seriously burnt out from my military years in the Air Force however something happened between then and now.

It’s called middle age and those calories do not burn away like those invincible years of youth. My waist line has grown substantially since the days of the battle dress uniform. Likewise, I have things to consider like blood pressure, cholesterol levels, and relaxation.

I have surfed up and down the central coast of California although age brings on a different perspective. The urge to chase big waves has since retired itself instead I’m looking for the soulful, don’t harsh my mellow, surfing experience. Relaxation out in the ocean searching for the perfect Old Man wave is the goal.

I’m introducing GroundWave with further copy to follow at Jeff, K1NSS’s DashToons as well.

I want to promote in addition to ham radio, a healthy lifestyle, and surfing is a perfect fit at achieving this goal. Afterall, blogging is a personal journal, one that is shared with a community of friends. I hope you will enjoy the life and times of a middle aged surfer who happens to love ham radio.

Surf to live, live to surf.

P.S. The serious funky mold was cleaned from the wetsuit including my rash guard and booties as seen in photograph number two.

Scot Morrison, KA3DRR, is a regular contributor to AmateurRadio.com and writes from California, USA.

Back in December I wrote that the RSGB had set up a Spectrum Defence Fund to enable radio amateurs to contribute towards the cost of a legal challenge to the UK spectrum management authority’s failure to take action over the interference caused by power line networking devices. Pleased to see some positive action being taken I made a donation and also posted links on my blog and website to encourage others to do the same.

Today I noticed, at the end of the RSGB Annual Report, the statement that “following advice from the Society’s solicitors … it was decided not to proceed at this time with any legal action.” So the RSGB has given up the fight and I have removed the links to the Spectrum Defence Fund from my website so that no-one else wastes any money on it.

Although PLT devices are a killer for any radio amateur unfortunate enough to live next door to one, it is clear from the noise at my own station and the comments I received from others with a similar problem that PLT is just the thick end of the wedge. A far greater number of short wave enthusiasts are having their enjoyment of HF ruined because of rising noise levels from a multiplicity of devices that individually would not be particularly intrusive. Whilst it is possible to track down and do something about a PLT installation, eliminating the noise that most of us in urban areas now experience from all directions would require the willingness of all neighbours to co-operate with finding the interference-generating devices and agreeing to replace them. This isn’t likely to happen. I fear the battle to keep the short wave bands free of interference is over and ham radio is a lost cause.

The only place to enjoy HF radio nowadays is out in the country, which unless you happen to live there means operating portable or mobile. The question is whether only being able to operate portable or mobile is enough to maintain most people’s enthusiasm? Although I recently enjoyed operating from my car on a couple of fine afternoons, it is no substitute for being able to go into the shack on a wet day or a winter evening and have a tune around and make a few contacts. I find I am turning on my K3 less and less often these days and when I do I often turn it off again soon afterwards without making any QSOs.

Will ham radio will still exist in ten years’ time? Many former short wave and FM radio stations now broadcast over the internet rather than the airwaves and I suspect that an increasing number of ham radio operators will end up doing the same. They will get worn down by the losing battle against electrical noise and antenna restrictions and be forced to swallow their objections and switch to online “virtual ionospheres” like QSONet and HamSphere (shown above) where there is no QRN. You only need to visit the HamSphere site to see the number of amateur license holders that have taken this step already.

The RSGB’s apparent acceptance that it can’t fight even a clear case of interference to short waves is clear evidence that this is a war we can’t win. Final surrender is just a matter of time.

Julian Moss, G4ILO, is a regular contributor to AmateurRadio.com and writes from Cumbria, England. Contact him at [email protected].

Nothing ventured, nothing gained.

Cycle 24 sunspot production is tantalizing but it takes activity to move an event from contender into established franchise winner. The Russian DX Contest (RDXC) point structure does a good job promoting international activity however until the solar flux reaches triple digits, this event is one for the east coast.

Game Advantage.
Certainly, when one looks west of the Mississippi, population density drops significantly and its influence is felt on the reach of potential participants and enthusiasts. Frankly, I’m competing against a wall signals whose advantage is a single hop into Europe, albeit modest stations with sub optimal antenna systems or competitive stations with optimal antenna systems.

East coast advantage is a RadioSport constant that is nearly fixed across a continuum of time. It validates one of three variables when considering a goal within the game. The other two are antenna systems and station configuration.

One must weight location in relationship to score structure. Location is a RadioSport reality and options exist when considering the next competitive level.

Game Planning.
Ed, N4EMG made a good point, one’s rate in the game will influence whether or not it is worth spending time in that game. I listened across three bands; 10m, 15m, and 20m through Saturday morning into late afternoon while calling CQ on the same spaces. My flatline rate meter, for one who has an iron butt in the chair, perhaps was indicative of activity west of the Mississippi?

Likewise, Keith, W4KAZ pointed out that station configuration follows one’s motivation and it is not unlike other competitive sports. One competes for different reasons however moving to the next level requires serious commitment both in time and resources. It is important to determine strength, weakness, opportunity, and threat (SWOT) when mapping out the next level of the game.

What did I gain from this weekend?

1. Adjusted AF and RF gain controls to match headphone impedance according to K3NA’s Setting Receiver Gain Controls.
2. Added four 10m quarter wavelength radials.
3. Reduced listening fatigue because of improperly set gain controls.
4. Contributed to the success of other competitors.
5. Scored Brazil on 10m.

My goals were modest however my expectation overshot the reality of the game. I achieved at least one -Q although I’m curious if band conditions were not as stable as Cycle 24 numbers suggested? I heard Asia on 20m and 15m; South America on 10m; and, North America.

Conclusion.
Ric, N6RNO suggested mapping goals. I drifted a few degrees from this advice although re-visiting RDXC was five hours of additional experience which meets a long-term goal. Rate, on the other hand, does determine commitment in the chair or time spent in the game while motivation to improve is an on-going, component-by-component, process.

I have to venture something to gain something at the end of the day.

Contest on!

Scot Morrison, KA3DRR, is a regular contributor to AmateurRadio.com and writes from California, USA.

These last two Polar Bear adventure radio sprints in January and February was quite an experience operating QRP (5 watts or less) outside in the snow. I never thought I would never do anything like this in freezing weather. There I was knee deep in snow; with a wind chill around 15 degrees, under an open air shelter at Cobus Creek Park, located in the northwest corner of Elkhart County in January. I was invited by Bob, KB9IVA, who said it would be fun. So I got my portable gear and winter parka and headed out to the site. When I arrived Bob wasn’t there. I got out of the warm car and looked over the snow covered picnic table. The bright sun reflected off the stone on the side of the building helped warm things up a bit.

Then the sun disappeared and it became colder.  The heated outhouse was open so I warmed up for a few minutes.

It was too cold for me to set up outside so I operated in my mobile on 40 meters.  Bob arrived in a snowmobile outfit with a bag full of tools, and his ICOM-703 and MP-1 portable all band vertical antenna.

The antenna would not tune properly so I ran 25 feet of RG-59U coax from my mobile antenna to the picnic table.  Then the portable battery pack ran out of juice.  So I took my emergency car starter battery and hay wired a connection to the ICOM-703 and we were back on the air.  When it’s cold radios and batteries don’t work properly.  Wires become stiff, batteries quickly discharge, and the straight key was difficult to use.  Not to mention your exposed fingers feel frostbitten.  I had forgotten my gloves but you couldn’t send CW with them on anyway.

I was more prepared for the February sprint but didn’t count on blowing snow.  Participating in this sprint was, Bob, WA9S Keith, and Steve KB9ZVJ and I Ni9Y.  Keith arrived late and operated inside his Jeep.  I Made a half-dozen contacts from Utah to Colorado to the East coast with my HB1-A 4 watt transceiver using a 50’ end-fed wire only 27 inches high.  Then the wires snapped off my battery pack.  So we quickly repaired the pack with a new connector and we were back in business again.

Bob had his IC-703.  His headphone band cracked in two in the cold.  Bob’s straight key was almost brittle and hard to use with gloves on.  Steve operated SSB with his Yaesu rig, powered by a riding mower battery, feeding a sloping 20 meter dipole about 5 feet high.

It was getting too cold for me so I packed up and left as the snow began to really come down. Steve saw me packing so he packed up and so did Bob.  Keith stayed behind moving to the picnic table and made more contacts in a small blizzard.  Then Park Ranger paid a surprise visit to find out what in the world was going on.  The ranger was satisfied that we weren’t suspicious characters after Keith explained the situation.  The ranger failed to notice Keith had wrapped his antenna rope around the door handle on women’s entrance to the outhouse. There was no way anyone could open that door.   The ranger probably thought we were a bunch of nuts playing radio in the snow.  It was fun and we probably will do it again next season.  Only next time I will be more prepared for polar bear weather.  Oh yes I forgot to say this was the POLAR BEAR MOONLIGHT MADNESS event.  You can read all about on their website http://www.n3epa.org/Pages/PolarBear.htm.  Polar Bears all over the country and in Europe participated in the madness.  The final polar bear event was held March 20th but I took a pass on that one because all the snow is gone so it wouldn’t be as much fun operating in warm spring weather!!!

The MEN OF ADVENTURE will soon take off again.  Barry, WD4MSM says “QRP To The Field” has just been announced for 2010.   He recalled that we took part in the 2009 version that had as its theme “The Great Depression.”  We operated from the WPA site of Monkey Island in Mishawaka (the bridge to Monkey Island was built by the WPA).

This looks as if it might be an ideal outing for us.  Saturday, April 24, 2010
Spicer Lake Nature Preserve http://www.sjcparks.org/spicer.html
Small picnic shelter available; Trees for antenna support if needed;
Restrooms (heated and immaculate) just steps away; Ample parking for hundreds!
Just minutes from South Bend; Plenty to do for family members and visitors (trails, grills, visitor center, two lakes, etc.); Handicap accessible trails and parking immediately next to the suggested operating position.

You to can join the MEN OF ADVENTURE even if you don’t have a QRP rig.  Just show up to learn about portable operation and how to put up antennas where they don’t belong.  Who knows maybe you to will be just as nuts as the other members of the group are?  Present company accepted.

That’s it for this edition.

73’s Dan, email DAN

p.s. Consider operating the special event KØS Strange Antenna Challenge Special Event — May 29-31, 2010.
Start Date & Time: Saturday, May 29, 2010, 1000Z
End Date & Time: Monday, May 31, 2010 at midnight (local time zones)
This is not a serious event.   We are all out here for fun!  K0S will employ out-of-the-ordinary antennas to promote Amateur Radio and making do with what might be available during an emergency.  Individuals and clubs may participate as “satellite stations” by using anything but wire or pipe for a radiating element and adding “/K0S” to their call signs. Details are on the KØS, Strange Antenna Challenge Web site. Strange antennas used in past events, dating back to 2002, have included folding chairs, paint easels, ladders, tape measures, dog kennels, fences, cots and chicken fencing with a trampoline as a ground plane. “More people share in the fun each year,” says Erik Weaver, N0EW, a Strange Antenna Challenge founder. “I hope you give me a call this year with your very own strange antenna. Now let’s play radio!”

Kelly McClelland, K4UPG, is a regular contributor to AmateurRadio.com and writes from Florida, USA. Contact him at [email protected].