Tag Archives: On The Air

Little Pistol DXing

For many years, I enjoyed chasing DX from my NH station with two towers, multiple beams, an 80-meter 2-element quad and a 160-meter Inverted L.  I got spoiled with the AL-1200 hammer I used almost constantly whenever a DXpedition came on the air to bag it quickly.  The setup allowed me to bust a contest pileup in just two or three calls.  Ah, the good ol’ days.

I’ve been in FL now for 18 months in a covenant-restricted retirement community.  I was fortunate to find a place with a fair amount of open property that allowed me to put up a couple of low inverted Vees and a multi-band vertical.  The wire antennas drape off a pole on the back of the house, out of sight of most of my neighbors.  The vertical is enclosed in a PVC flagpole with just the 80-meter “stinger” poking out the top.  It may be an ugly flagpole but it falls within the covenant permissible guidelines and, more importantly, keeps the village aesthetic vigilantes off my back. I have about 32 radials fed from the base of the vertical in a ¾ pie-shaped field with lengths varying from 55 feet to 10 feet.  While this is far from the standard practice of at least 100 radials of 65 feet or more (assuming 80-meter capability), it is better than nothing.

As one might expect, DXing has been a far cry from what I was used to.  Hearing stations is a chore, even with a K3 over my old FT-1000MP.  I often find myself irritated at the juicy spot reports from New England that I cannot hear.  Part of the problem is geography; I am at a lower latitude and I line near Ohio longitudinally so gray-line effects are different.  One might think the high threat of thunderstorms down here also generates a lot of noise but it has been dry and quiet during the fall and winter months when DX is most active.

So what is an old DXer supposed to do?  Answer: Back to the future.  When I got my Novice license back in high school, I put up an end-fed long-wire antenna for 80 meters and a dipole for 40 meters, both of them much lower than 1/4-wavelength above ground.  The long-wire was fed with 300-ohm line.  Why?  Because that is what my Elmer and high school buddy told me to do.  I was clueless about matching, common-mode currents and RF in the shack.  I had a Hallicrafters S-38 reconditioned tube receiver that had a barn door-wide filter for CW.  You can understand why it was a thrill to work states west of the Mississippi.  If nothing else, I learned to appreciate a QSO and to be patient when trying to work someone.

My present station has the advantage of all the technological improvements in signal processing and automation that have mushroomed since the tube days.  Stations are still weak when I do hear them but I can work them if they aren’t too busy.  Contesting is actually better since many stations crank up the amplifier and plead for stations late in the contest.  Using an amplifier here is problematic.  My vertical is about eight feet from the shack so RF saturation would be likely.  Furthermore, I would need to run a 220 VAC line to the shack to avoid brownout when using 110 VAC with an amplifier.  The worse thing, however, would be EMP effects on the neighborhood breaker systems.  It seems building contractors have switched to breakers with a much lower RF tolerance than before.

So what a desperate DXer supposed to do?  The easiest thing I can do is put down more radials.  As I mentioned, my radial field is far from ideal, even if I had moist, loamy soil instead of sand.  An ideal radial field would be a copper sheet surrounding the vertical.  In the climate here, it would turn green in a few weeks so it would look like a California painted lawn if it isn’t stolen first.  I decided to double the radial field I have to provide more return paths for the RF currents.  I have not modeled my antenna to see what kind of radiation pattern I have but it is a good bet that the so-called takeoff angle for bouncing off the ionosphere is 40 degrees or higher.  Conventional theory says that a takeoff angle should be 15 to 20 degrees, values usually achievable with yagis mounted 1/4-wavelengths or higher.  The hope is that I can pull-down my takeoff angle enough to where I fall into the usual DX footprints.

When I installed my original set of radials, it was a time-consuming effort to work each wire down through the thick St. Augustine grass here.  I finally got smart one day when trimming the walkways with my weed-whacker set up vertically.  I found that I can lay out the wire and walk along it with the weed-whacker cutting a narrow slice through the grass.  I then drop the wire down into the cut, add a few staples and close the grass around the cut.  The cut will be completely grown over in about a month.  (This technique will work in New England if you have a manicured lawn; the rocks in a natural lawn tend to mess things up.)  To date, I have added eight radials so it is still a work in progress.

For those of you with a modest station, take heart.  With today’s transceivers, propagation predictions, and worldwide spotting it is possible to achieve DXCC on several bands in less than a year.  I have been fortunate to work them all when I was a “big gun”.  As a “little pistol”, I’ve managed to work 176 countries with 144 confirmed.

The chase continues…

Ed (K2TE)

ARRL Kids Day on the Air

On Saturday, January 7th the Nashua Area Radio Club participated in the ARRL’s Kids Day on the Air.  Fred (AB1OC) and Anita (AB1QB) opened up their station for any youth that wanted to come and participate!  We also had snap circuits available with help from Greg (W1TEN) and CW paddles for those who wanted to practice up on their Morse code.

Unfortunately, the weather did not cooperate with us as it was a snowy day with slippery road conditions.  We had a couple of youth not able to make the event due to the weather, but we still had a few show and they were very enthusiastic!

Connor (KC1GGX) operating on 20 meters during Kids DayConnor (KC1GGX) started the event off by operating on 20 meters and made several contacts.  Despite having a little “mic fright” he warmed up nicely and didn’t want to share the mic when it was someone else’s turn!

 

Abby (AB1BY) stopped by and had two frienAbby (AB1BY) operating on Kids Day with her two friendsds – Samay and Jaegen – from her Destination Imagination team with her.  Abby got the ball rolling for her friends and  showed them how to create a pile up – just have a young YL voice and the calls start coming!  She then turned the mic over to Samay and Jaegen and helped them work through their first QSOs.  They soon were comfortable with the phonetic alphabet and they had fun spelling their names during their QSOs.

Despite the weatherEveryone had a great time during Kids Day, the kids had a great time and it was a lot of fun to see the youth in our club improve their operating skills and watch the new kids make their first contacts!

 

Kids Day FunMark you calendars for Sunday, June 18th when the next ARRL’s Kids Day on the Air takes place.  I feel pretty comfortable saying there won’t be any snow… but, this is New England.

 

Time to Prepare for Field Day 2017

On Christmas morning, it always amazes me how the kids can rip the packaging off all their gifts in mere minutes.  The smile on their faces and their pure joy and excitement makes it all worthwhile.  What took months of planning, shopping, hiding, wrapping is over before you know it.  As they say, you get much more out of giving than receiving.

As you might imagine, there is a parallel here to field day.   Sure, you could just show up at Field Day on Saturday morning, and everything would be setup and ready to go.  However, much of the value comes from all the strategy, planning, preparation and setup activities.  Despite the large investment the club has made in towers, antennas, generator, etc., It takes a small army of volunteers to get this right.

This is my first year as field day chairman.  Truth be told, I only attended my first Nashua Area RC field day last June, and was truly impressed.  I was reluctant to volunteer last year, as I just didn’t quite know what I would be getting into.  I suspect many of you are feeling the same way this year.  Whatever the excuse; I haven’t been a ham long enough, don’t know if I can devote the time, I don’t know anything about field day, etc.  Trust me, you can and will add value to this event.  Like Uncle Sam used we say, we need you!

Now that it’s the new year, we are going to start having a regular series of meetings to plan for Field Day 2017.   The first meeting will be centered around what we learned from field day last year.  I’m looking for some early ideas about new things we can do to make field day more interesting and relevant for each of you.  Please feel free to contact me at [email protected] anytime with your ideas.

Some of the preliminary feedback I have received is tactical in nature.  It includes the following:

Current Field Day electrical distribution setup
Current Field Day electrical distribution setup
  1. The Electrical distribution system needs help. The current system consists of a Honda ES-6500 Generator with 240v distribution lines to step-down transformers at the tents.  The main distribution panel needs to be completely rebuilt and reduced in size.  Additionally, the whole setup isn’t currently weatherproof.  The existing distribution “cables” are single-conductor THHN wires taped together which certainly isn’t optimal.  Ideally, we should start with a clean sheet of paper and rebuild this properly.  Perhaps a small transfer switch so we can run two generators (so one can be serviced while still operating), with twist-lock plugs on the distribution cables and transformers, and proper SJOOW cable.  This effort alone would exceed the club budget for field day, so we could use donations of time and materials.
  2. The club owns a significant amount of coax cable. However, much of it is quite old and the connectors have seen better days.  I will look to schedule a tech night to put on new connectors and weatherproof using head-shrink with adhesive-lined backing.  We also need to make-up some short patch cables to connect to the club’s bandpass filters.  We should also label all club cable with the club call.  Finally, we need to determine the best strategy to coil up and store the coax without kinks.
  3. The iron anchor stakes for the towers need to be modified to have a sharp point at one end. Someone with a grinder could do this in relatively short order.  We could also benefit from having a large hammer drill on-site with a ground rod bit to drive them in.
  4. We need to review the hardware and storage containers used to assemble the towers. There was a recommendation to use shoulder bolts that are smooth and unthreaded through the tower to prevent crushing. Also, many of the storage containers are cracked and need replacement.  Need to inventory and rebuild these kits.
  5. We have a trailer, affectionately referred to as BOB (the Big Orange Box) at the Nashua Wastewater Treatment Center. I understand this could use some reorganization.  We need mount some brackets to the wall to get things up off the floor.  Also, we should group each of the tower kits together.

So what should you expect from me?  I will be looking to divide the work up into a series of teams and assign leads for each.  The teams will include a site readiness team, electrical, tower and antenna construction, safety, transportation, food, and potentially others. Many hands make light work, and there’s something here for everyone.

The preparation begins now.  Who said it can’t be Christmas in June?  Let the excitement begin!

Dave, K1DLM

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