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That’s where I found myself tonight, as one of the two Foxes in the 40 Meter QRP Fox Hunt. As a Fox, you try to find a relatively clear frequency, where you can work the Hounds rather easily. And that’s precisely what I thought I did tonight. I found a frequency, called “QRL?”, and hearing no response in the negative, I began working Hounds. For the first few minutes, things were going great. Then I found myself giving the Fox exchange to stations who weren’t coming back to me.

After that sinking-in-the-pit-of-my-stomach “uh oh” feeling quickly passed by, I snuck a peak at the Cluster, to realize that I was being encroached by one of the W1AW/X pileups! A lot of those stations had no interest in me, and probably couldn’t even hear me, for that matter.

So I quickly QSYed to calmer waters and decided to operate simplex instead of split. Even though there was a lot of QRM and the band was treating me to a lot of QSB, a very quick after-the-event count shows that I handed out close to 60 pelts.

A post-hunt e-mail from Todd N9NE informed me that I had managed to position myself right in between W1AW/8 and W1AW/4. I’m glad I didn’t know that! Some things you’re better off not knowing, and I think that is one of them.

My ears hurt a little bit from trying to pull out some weaker call signs from among the loud QRM, but I am pretty satisfied by my effort. I wanted to work at least 60 stations going in, and I made that a goal for myself. Looks like I just made it.

72 de Larry W2LJ
QRP – When you care to send the very least!

Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].

For the second time in a few days, I had a 29MHz QSO through the KQ2H repeater on 29.620 (input on 29.520) on the way home from the station. With the days lengthening, the propagation is lasting a little longer too and KQ2H has been a really great signal even at 1830z.

Last Friday I worked M0CGL through the box and then this evening it was nice to have a QSO with Terry G0VHS in Weymouth.

Gear is the Anytone AT5555 at around 20W into the Sirio whip on the car.

The band has been quiet in the morning, although I’ve tried a few CQs on 29.600 at around 0715z – I’m sure it’s open somewhere. Judging by the Russian taxi controllers on 27MHz – it’s good out in that direction!

Good to hear some people making 29MHz AM QSOs today as well – though the AM segment was quiet by the time I got back to the car.

Tim Kirby, G4VXE, is a regular contributor to AmateurRadio.com and writes from Oxfordshire, England. Contact him at [email protected].

I might not be in the best location for the QRP Fox hunts, but I do have to admit that I am blessed when it came to achieving QRP DXCC.  Those of us in the Northeast definitely do not have the edge in Fox hunting that our fellow Hounds from the Midwest have.  When you look at the Hound’s scores, the guys “who get ’em all” are usually, if not exclusively, from the middle of the US.  But those of us in the Northeast, and on the East coast in general have the edge when working Europe and the Caribbean.  I believe that Jim W4QO in Georgia posted that he worked over 100 different DXCC entities just this past weekend.  That’s nothing to sneeze at and is a great accomplishment!

But if your a new QRPer you may be saying to yourself, “That’s all well and good, but I’m just starting out and I don’t have a tower and a beam or a fancy antenna farm.” I’m not saying that those wouldn’t be helpful, but you can achieve a lot with simple antennas.  I posted yesterday that I worked about half a DXCC award this past weekend.  I did it with a Butternut HF9V antenna and a home brewed 88′ Extended Double Zepp antenna.  These antennas are surely within the reach of beginner QRPers (HOAs notwithstanding). With 5 Watts, I worked (in no particular order):

Estonia
Norway
France
Czech Republic
Belgium
Columbia
Italy
Slovenia
Bulgaria
Poland
Spain
Bahamas
Puerto Rico
The Ukraine
European Russia
The Azores
Mexico
Brazil
Chile
Morocco
The Turks & Caicos
The Cayman Islands
Alaska
Madeira Island
Portugal
US Virgin Islands
Sweden
Nicaragua
French Guiana
Lithiuania
Aruba
Curacao
Anguilla
Finland
Atigua & Barbuda
England
Scotland
The Balearic Islands
Germany
Jamaica
Belize
The Canary Islands
Bonaire
Belarus
Denmark

That’s 45 DXCC entities in just around four hours of operating.  So I don’t want to hear about how QRP DXCC is hard or impossible.  I’ve done it and believe me, if a ham and egger like me can work 100 different countries using 5 Watts, then you can do better!  And when you come down to it, my performance this past weekend was really nothing to crow about.  If you want to read a great story, then make sure to read Phil AK2MA’s recount of his ARRL DX Contest effort – 150 QSOs and 57 countries worked with an INDOOR Buddipole on just one band (15 Meters)! THAT my friends is an achievement!

There is a price to pay, however, and that is you’re going to have to work on your Morse Code. Life is not a dish of assorted fancy cashews. QRP DXing and CW go together like hand and glove. Some of these contest stations were sending so fast that it took me 7 or 8 listens to get their calls right.  Normally I am comfortable copying up to 25-28 WPM; and on a good day, I can stretch that to 35 WPM if the code being sent well and the exchange is short (like a contest exchange). Some of these guys were sending around the 40 WPM stratosphere and I had to just pass them by.  But with dedication and practice you can get to the “mere human neighborhood” of 25 WPM without going crazy.

And that’s part of what this is all about, too. Constantly improving your station, your antennas, and yourself!

72 de Larry W2LJ
QRP – When you care to send the very least!

Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].

At the start of the year I did some experimentation with cheap DDS modules based on the Analog Devices AD9850 connected to the Arduino board, making a rudimentary WSPR transmitter prototype.

My current licence restrictions prevent me using anything home-brew for transmitting except for commercial kits. So I ordered an Ultimate3 QRSS beacon kit from Hans Summers (G0UPL) thinking that it would be okay. I subsequently learned that any commercially available kit must satisfy IR 2028 which is all a bit vague and unclear but sadly I don't believe this particular kit does.

All was not lost, building this kit should more than satisfy one of the practical assessments of the intermediate examination, which will get me around this problem.

The Ultimate3 kit is extremely popular and so I had to wait a little for delivery and it arrived on Friday. After the last few weekends of non-radio activities I had planned to get my antennas backup and do some proper operating. Like many people I had been forced to take everything down due to the barrage of storms and high winds the UK has been experiencing recently.

A tidy workbench

Saturday saw no let up in the wind, so I decided to spend a few hours building the kit instead.

The instructions were extremely clear and straight forward and soon had it built up, though it is high time I invested in new soldering station. I have a basic Antex 25W iron. I cannot remember exactly when I brought it but it is well over 10 years ago.  It was more than adequate to build this kit and for soldering connectors but I could do with something adjustable and more comfortable.

Taking shape

The only issue I had was winding the first toroid, 25 turns later I realised I had wound it the wrong way round so the leads didn't line up with the holes in the PCB. I could have made it fit but nope I will do it properly so I unwound it and did it again.

I also made the mistake of not scraping the enamel off the toroid wire and tried the heat it and bubble it off method, except I think my iron just isn't hot enough so ended up using a piece of wire wool to remove the enamel.

Lessons learned I soon had the other three toroids correctly wound and wire prepared for the low-pass filter board.

Close up of the LPF

   A final visual check and powered it up and it worked first time!

All built

It works!

Setting it up

Full of confidence I grabbed my trusty GPS module which has been pressed into service on a few Arduino projects including the HAB project. Quickly soldered some connecting wires and powered everything up.. all was well or so it seemed when the display suddenly went blank, backlight was on, just no characters.

Pressing the button I occasionally got some random characters and a flashing cursor! I de-soldered the GPS and still nothing. I suspected the display was faulty but trying it on the HAB prototype board confirmed it was okay. I checked the display connector continuity and everything appeared okay.

Out with the oscilloscope I started probing, everything checked out. Crystal was oscillating and data pulses on the display control lines. Then I checked the supply pin on the display and it was only reading 4.1V, this under-voltage would explain the odd display behaviour.

PSU output was 5V, micro-controller was 5V, DDS module had 5V. All very puzzling till I removed the DDS module and spotted a discoloured track on the PCB, touching it with a screwdriver and the lacquer fell away revealing a tell tale scorch mark, somehow I had made a nice resistor!

Burnt track to right of micro-controller

A quick wire link soldered in place and everything was back to normal.

What caused it? Checking the de-soldered GPS connecting wire I spotted a stray single strand of wire on the ground wire. I suspect this must have shorted to the adjacent 5V line and since I was using a nice beefy ex-PC PSU as a bench supply it had popped the track without the hint of a flicker. The GPS has been rewired properly and is working nicely, now to connect a dummy load and experiment some more.

Sunday was a lovely day, wind dropped so antennas have been put back up and I took the opportunity to tidy up the installation a bit. I also dug out an old fibreglass pole to put the M0CVO HW-20HP back up. I didn't get to do any operating in the end as by the time I had done this and made up a couple of decent patch leads it was time for roast beef and all the trimmings and an evening in front of the TV.

The HW-20HP back up

Putting PL259 and N-Type connectors on coax is also part of the intermediate assessment, so perhaps I should have videoed making up the patch-leads as proof ;-)
Andrew Garratt, MØNRD, is a regular contributor to AmateurRadio.com and writes from East Midlands, England. Contact him at [email protected].

Birthday parties for 8 year old daughters are fun, but soooooo tiring. My plan was to get up early on Sunday morning and take full advantage of the daylight path to north America for the ARRL DX Contest. But Saturday was the day of the long awaited party and we outdid ourselves entertaining all the little guests, until we drove them home in the evening. So when I opened my eyes on Sunday it was already 10 local time and when I crept behind the set already after 11. Most of NA in the dark, so I didn’t expect much from 15 and 10 meters.

But boy, was I wrong! The 15 meter band was wide open and I logged two new states: Louisiana and Iowa. Georgia also yielded two new stations, despite it being after dusk there for a while already. Strangely though, the 10 meter band didn’t show any sign from NA, but 20 meters did and in the middle of the day I was able to log two stations from the west coast with excellent signals. And the last thing that really surprised me was the discipline in this contest. I didn’t encounter any rude behaviour and stations didn’t spill over into other portions of the bands. Kudos to all the operators who took part. It sure was fun!

Hans "Fong" van den Boogert, BX2ABT, is a regular contributor to AmateurRadio.com and writes from Taiwan. Contact him at [email protected].

One of the goals I had for the K2 that I failed to mention in the previous post was to fill-in for the K3 in DXpedition service.  This is a tall order.  It also necessitated upgrading the basic K2/10 to a 100-watt K2/100—being loud (enough) is an important part of pileup control.  I had the good fortune to come across an already-assembled final amplifier unit at an attractive price a few days after I purchased the radio.  I took that as a sign!

Another rite of passage for the K2/100 would be…how does it perform in a pileup?  One of the really great things about ARRL DX CW since the advent of the CW Skimmer and Reverse Beacon Network is that literally any U.S. station (especially on the East Coast, my Western and Midwestern friends will remind) with a modest signal can elicit a blistering run of Europeans.  I’ve been relatively unhappy with the K3′s response to pileups, with callsigns often being mushed together more than with other radios (e.g., the TS-930S).  I understand that tailoring the K3′s AGC should help this—the KE7X book now graces my shelf but I haven’t had a chance to explore all of his suggestions yet.  Having heard anecdotally that the K2 does better in this regard, I was excited to break it in with ARRL DX.

Sarah worked this weekend and I was frankly wiped out from a full week at work plus shoveling 18 inches of snow and cutting up trees from the previous week’s ice storm!  Nothing approximating a “full” operation was in the cards.  In about two hours of operating, mostly on Sunday, I made about 140 QSOs on 10 and 15 meters.  I’m happy to report that the K2 did quite well with regard to the pileup response and I didn’t manage to break it CQing hard at full power.  The K2 also passed the “W3LPL test”…Frank lives just a few miles away and is frequently quite loud here.  But, I could still hear nearby stations with no problem at all.  The one thing that disappointed me about the K2 is that it seemed a little deaf as the 15-m band was closing to Europe.  A number of stations were right at the noise floor and were tricky to copy.  This might have been “one-way” propagation, too, a topic I should write about at some point.

The upshot is that I’m extremely pleased with the K2 and I look forward many more QSOs with it!

Ethan Miller, K8GU, is a regular contributor to AmateurRadio.com and writes from Maryland, USA. Contact him at [email protected].

Pumping out 1/2 a watt

On Saturday I was very pleased to see that my MFJ 1788 loop antenna was getting out. On Sunday it was time to push my luck to the limits, here are VE3WDM I always like to see how little power it take to make a contact. It seemed yesterday 5 watts most if not all the time was getting through. Why stop at 5 watts it was time to drop the Elecraft K3 below the 5 watt maker.............wayyyyy below! The conditions once again were very nice Flux levels were up along with the Sun spot count but the K index was also in around 4. That did not seem to matter the bands were full of contest action. Once again I stayed on 15m and it was very busy with DX from the contest. Today I made only 20 contacts as there was chores to get done around the house.

Hard at work

Yesterday's post concentrated on the country count and locations today's post is all about power levels and miles per watt. From 5 watts I dropped down to 2 watts to see what would happen and DK3GI was in my cross hairs. I was able to make the contact first call which gave me 2020 miles per watt. From there on out of my 20 contacts 19 were all over 1,000 miles per watt. Here is a run down:
1 contact made at 3 watts
4 contacts were made at 2 watts
7 contacts were made at 1 watt
6 contacts were made at .5 of a watt
1 contact made at .1 of a watt
1 contact made at 5 watts ( this being the only contact not netting me 1000 miles per watt)
Some of the miles per watt numbers
II9P at .5 of a watts netted me 18,470 miles per watt
K5RT at .1 of a watt netted me 11,808 miles per watt
CN2AA at .5 of a watt netted me 7682 miles per watt
F8CIL at .5 of a watt netted me 7662 miles per watt
F5NBX at .5 of a watt netted me 7608 miles per watt
CS2C at .5 of a watt and netted me 7216 miles per watt
This contest I was just a point giver and not in the contest to submit a score. I wanted to test out the MFJ 1788 antenna to see how my location and antenna performed. Some things that still have to be done, I have to get the contesting software and radio control software up and running. Have the SWR problem on 10m and 20m figured out with the MFJ 1788 loop, for some reason the best SWR I can get is around 9! On a positive side this contest proved to me that the antenna will get out even with QRP or QRPp power!!


Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].