AmateurRadio.com

Series Five Episode Eleven of the ICQ Podcast has been released. News Stories include :-

• New frequencies for AMSAT-UK FUNcube-1
• 2E0BTR Mountain Goat
• New regulations for the Olympic Games
• Special UK callsigns for Queen's Diamond Jubilee
• D-Star for London 2012 Olympics
• GB3LV repeater back on the air
• UK Propagation charts for May 2012
• US Emergency Services move to Digital
• Glasgow school wins 70cm CanSat launch competition
• RAYNET Isle of Man
• 60 metres 'Gazetted' in Canada
• European Football Championship 2012 on the Air

Martin M1MRB discusses Homebrew D-STAR.

A while back, Yaesu published a white paper/brochure on VHF/UHF digital technology that slammed D-STAR for using GMSK modulation and stated that C4FM (4-Level FSK) is the way to go. See my previous posting on that topic. The paper also talked about DMR and APCO 25 as standards that use C4FM.

At this point in time Vertex Standard believes the C4FM (4-level FSK) FDMA or TDMA are the most suitable selections for Amateur radio applications. In early 2012, we will release a C4FM (4-level FSK) FDMA Handy-Talky and a Mobile transceiver into the Amateur radio market. After our initial introduction, we plan to introduce a C4FM (4-level FSK) TDMA (2 slots) or TDMA Handy and Mobile transceiver into the Amateur market.

This morning we headed over to the village of Coleshill, where Julie wanted to take a look at a clothes sale. Having had a look around, I left Julie to it and popped back to the car.

Being the middle of the day, I thought I would check 28MHz SSB. First I heard a ZS6 who wasn’t too loud. Although he could just hear me, my 10W to the whip wasn’t enough for a contact. ZS3Y was a bit louder but he couldn’t hear me. HZ1HN was contesting but I couldn’t get him to hear me.

I was starting to think it was a receive only day, when I heard a loud station just finishing a CQ. I called and was pleased and surprised to get a report of 5/5. Even more pleased when I discovered the station was in Israel, 4X4FR. We had a really nice QSO. Just as I signed with Rafi and we were preparing to drive off, with Julie back from the sale, Phil G7GVV from Oxford called in – so we quickly exchanged reports.

Slightly oddly, I noticed that on two channels only, there is a small difference between the Anytone’s TX and RX frequencies. And the clarifier seems to be set correctly. Odd! Happily it doesn’t seem to matter. Maybe a reset will help!

Fun contacts from the mobile!

A couple of weeks ago I received an email to inform me that a 5lb package was on its way to me by UPS from Elecraft. As I had not ordered a KX3 or indeed anything else from Elecraft recently I wondered if I was the winner of a competition I had forgotten about or whether it was just my lucky day. I accepted the explanation from Elecraft Sales that it was just finger trouble at their end – those drop-down auto-complete lists can sometimes be a bit too helpful – and thought no more about it.

This morning the postman knocked on the door and handed over a package that looked as if it weighed about 5 pounds…

KX3 S/N 110

Actually it was not a complete surprise as by then I had been let into the secret. A fellow Elecraft reflector subscriber, blog follower and someone with whom I have often corresponded about Elecraft and other matters (who wishes to remain anonymous) suggested to Elecraft that, in his words, “in appreciation for all of your constructive criticisms and suggestions over the years of how to improve Elecraft (and other) ham radio products that a fully accessorized KX-3 arriving on your doorstep would be a pleasant surprise.” It was, you better believe it!

Wayne and Eric were in on the conspiracy, as was a friend of my benefactor who was passing through the UK on his way home from the US and carried the radio across the Atlantic in his hand luggage before consigning it to the Royal Mail for the final leg of its journey.

I can hardly find the words to describe how delighted I am at this wonderful surprise. As I have written before, I didn’t want to even think about ordering a KX3 until orders were being fulfilled off-the-shelf because my health situation makes it impossible to plan very far ahead. My wish is to “beat the bugger” and survive as long as possible, but having a brain tumour is like having a time-bomb in your head with no idea what the fuse is set to.

A trio of Elecrafts

For the time being, Elecraft KX3 serial number 110 joins its two older siblings: K3 s/n 222 and K2 s/n 392 in my shack. But it will be a constant reminder and incentive to get fit and well enough for some QRPTTF operation. Thanks to everyone involved in sending me this wonderful little radio.

I was unable to make it out to Dayton but am enjoying seeing the onsite action through various mediums:

(1) w5kub.com – live streaming. It has been a bit hit and miss on the quality and coverage, but the feed is quite popular and it is a lot of fun seeing all the hams walking around the outdoor market. Lots of hams in front of the live feed cam seem to stand there, stare at the camera, and call home (or a buddy) to have them get on the website to see them on the live feed. At certain times the live feed appears to be an actual video version of hamsexy.com. The best part about amateur radio is the people and it is always great to see what an amazing variety of folks who share a common interest.

(2) Jeff, KE9V, is on the grounds of the Hara Arena and is frequently Tweeting and posting pictures. Jeff had an interesting picture of a vendor called Horse Fence Antennas. The product appears to be a dipole antenna that is built into what we in the Army call a cargo strap. The antenna looks a bit bizzare, but the eHam reviews are 5.0.

(3) D-STARS! I have not hooked up my DVAP and IC-92AD since I returned for Korea, but did so yesterday so I could monitor REF038C. Lots of great hamvention chatter on the reflector.

(4) I am going to look for any HF stations operating from the Hamvention. Often W1AW will setup up a special event station – those are always fun to work.

Hopefully I will be able to go next year…. 2013, Dayton or bust!

I have opined in the past (although perhaps not on the blog directly) that CW is the reason I am still an active ham after almost 19 years…actually, I think a week from today marks the 19-year anniversary of passing elements 2 and 3A in the basement of the Stark County Sheriff’s office.  CW permitted me to make interesting, intriguing, compelling QSOs that I simply could not complete on SSB with my meager station as a beginner.

Over the years, I have used this as the argument for retaining the Morse code testing requirement:  Morse code proficiency gave newcomers the opportunity to make exciting DX contacts under all solar conditions (except disturbed, of course) and hook them on the hobby.

PSK31 was the first mode that challenged CW in that arena.  I made a couple of PSK contacts almost 10 years ago now and decided it was harder than CW.  So, I did not pursue it.  Aside from making a half-hearted effort to get ARRL’s Triple Play Worked All States using only unassisted (no cluster, no RBN, no skeds) contest contacts, I haven’t really operated digital modes much and didn’t really understand why anyone would want to because CW is so much easier.  I’ve seen dozens of JT65 posts by fellow AmateurRadio.com bloggers.  And, about a year ago, I met Paul, N8HM, who lives in an apartment in DC.  He’s very active on HF digital modes with a shoestring setup…and he’s very passionate about it.  That’s when it clicked.

Digital modes are the new CW:  the DX mode for the average ham.  I must be slow!

I still think CW is way easier than digital QSOs, especially in contests and pileups:  there is a certain amount of critical humanity (varying timing, sending speed, spacing, or calling frequency) that you can’t apply to cracking a digital pileup…or maybe I just haven’t figured it out yet.  I guess I have years of Morse practice and shouldn’t expect digital to be easy just because the computer is doing the sending and decoding.  But, I think I understand digital operators a little better after this revelation.

You guys are alright.

I try not to do these “meta-posts” too often, but time has been of the essence lately and it’s been hard to find enough time to sit down and write something coherent when most of my “ham time” has been devoted to DXing or antenna work.  This post covers tinkering and operating from K8GU since January (!!).

I am not at Dayton this year.

Worked 7O6T on three bands (20/17/15) on CW and also on 20-meter SSB.  The only one I spent more than five minutes for was 20CW, which was during the first few days of the operation.  Normally, I would have waited, but since this was in the land of pirates and AQAP, I decided to play it safe in case there was an international incident that curtailed the operation.  My friend Steve, K0SR, gave me a hard time when I bragged about working them with 100 watts and a dipole.  You can do that on the East Coast.  He’s right.  DXing and DX contesting from the Upper Midwest (aka The Black Hole) is hard.

Did not work 6O0CW (Somalia) or 9M0L (Spratly).  XX9E (Macao) is doubtful since it’s a short DXpedition and I’ve only heard them once so far.

My 2011 Sweepstakes “Clean Sweep” mug arrived.  Sarah banished it from the kitchen because it’s canary yellow.  I think it’s hand-wash anyway, so it will continue to hold baby-proofing outlet covers and look good on the top shelf in my shack next to the liquid-crystal painted Jicamarca mug.  Speaking of baby-proofing, Evan is on the move…

I built a gate that fits in the aperture of my shack desk.  An unintentional feature of this is that I can still reach the keyboards through a gap at the top.  It’s a little hard to send CW through there.  But, it keeps curious Evan away from the jungle of wires that make up this “wireless” station.

In January, I took down my VHF antennas from the main house chimney.  I had estimated the wind surface area of the chimney and determined that the wind load of the antennas increased it by 15-20%.  Since I know that the guys (it was built in 1946ish, so yes, guys) who built the house didn’t do any calculations I figured that the safety factor was at least a factor of two.  But, I was growing increasingly uneasy about the torque exerted by the antennas on the chimney, so I took them down.

In March, I had the opportunity to pick up (from K3AJ, who beat me by three QSOs in ARRL SS CW last year…need to be disciplined since I left 4 hours on the table) a M2 2M9SSB Yagi for two meters on great terms (per usual).  This antenna is lighter and stronger than the homebrew K1FO that I had been using.  I cut up the elements from the 2-meter K1FO to make Yagis (also K1FO designs) for 222 and 432 on 10-foot booms.  Need to finish those and put them up.

We have another, shorter chimney on the addition that houses my hamshack.  This chimney has served as the anchor for my 10-meter rotable (by the Armstrong method) dipole for a while now.  Branches from a nearby tree have impinged on the rotation somewhat, but since it’s bidirectional it hasn’t been a big deal.  But, I decided that this might be a good location for the new 2M9SSB, the A50-3S (3-el 6-meter Yagi), and the 10-meter dipole.  I himmed and I hawed.  Then, I climbed the tree and sawed.  It’s a miracle I didn’t end up with poison ivy.

I upgraded the 10-meter dipole using hardware from DX Engineering so it could be mounted to a mast (old method was not mechanically sound, especially for something that would be rotated with a T2X).

A few weeks ago, I assembled and installed the whole mess…see photo at the top of the post.  I’m now using a Hy-Gain T2X (purchased at Dayton in 2005—I showed up at my in-laws’ grinning ear-to-ear with the motor in one hand in the control box in the other—they still love to tell this story) instead of a CDE TR-2 rotator.  The T2X can probably turn the house.

A spring wind storm dislodged the branch that supported my 80-meter wire vertical and one end of the 20-meter dipole.  So, I cleaned that up last weekend.  By “cleaned,” I mean I took both of those antennas down.  I also took down the 160-meter TEE because one of the TEE wires was very close to the new VHF array.  At this point, I was only QRV on the “Technician bands”…minus 80…40/15/10/6/2.  I almost got the 160-meter wire all the way out of the tree except the rope that supported the center (TEE junction) bound up with the junction about 10 feet off the ground.  So, I improvised a hot knife on a stick to cut the poly rope:

It worked great.  As she should have, Sarah gave me a hard time.  There are two types of people: those who watch Red Green and there are those who inspire Red Green.

Taking a wonderful brilliant hint from N4YDU, I replaced my 30-meter coax-fed dipole with a 30-meter open-wire-fed dipole.  While I prefer resonant single-band antennas for contesting (clean patterns and nothing to touch when changing bands), every other kind of operation can tolerate tune-up.  The open-wire-fed 30-meter dipole not only tunes well on 17 and 12 meters, it just has a slightly narrower pattern!  An aside:  After the 2010 ARRL 10-meter contest, I posted to the PVRC reflector that I had been running 100 watts to a dipole at 30 feet.  This prompted my neighbor (who lives about 2 miles away, a neighbor for bands below 76 GHz) K3KU to pay me a visit because I had beat him in every pileup that weekend.  He thought surely I was running a KW to 5 elements at 60 feet!  He runs an open-wire fed 135-foot long dipole on all bands through a tuner.  The pattern of that antenna looks like a sea anemone on 10 meters!

Worked D3AA on the third call on 30-meter CW last night.  So, I guess that antenna is working.  Also worked VP9GE on 6 meters. There’s a certain amount of satisfaction working DX with a transverter you designed (mostly) and built yourself.

I have a wicked RFI problem on 6 meters when I run the amp (150-watt Mirage brick).  It’s probably RF on the power lines, although it doesn’t set off the CO detector like 40 meters does.  So, it could be RF pick up on the audio wiring in my shack.  In any case, need to get that worked out before the ARRL June Es contest.