EME Station 2.0 Part 7 – Building EME Antennas

The next step in our EME project is to assemble the four M2 Antenna Systems 2MXP28 Yagis. The four EME Antennas in our array will have a total of 112 elements! These antennas are large, cross-polarized yagis. They feature 28 elements each on 34 1/2 foot booms…

Source: EME Station 2.0 Part 7 – Building Antennas

We are building four M2 2MXP28 Antennas to be mounted on an M2 Antennas 2X2 H-Frame. It is important that the four antennas be identical so they operate properly as an array. This includes things like symmetrical mounting and alignment of each antenna’s vertical and horizontal elements and the associated feed points.

The article in the link above covers the steps, tips, and tricks that we are using to assemble four of these large, 2m X-pol Yagi Antennas. The approach, tools, and techniques are applicable to a wide range of VHF and UHF Yagi antennas.

Fred, AB1OC

Try Rookie Contesting

New England QSO Party, Revisited

At the end of April this year I wrote an article about my experience with the New England QSO Party.  The event took place in May 2019.  At the time, my station at my NH QTH was IC-7300, 500 Watts, and EFHW antenna at 50 feet.  When I received the certificate from the NEQP it was for second place in Carroll County, NH, and I got a big kick out of it.  I examined the details of the event and learned more about my competition. I found out that there was a total of 4 entries from Carroll County and only two of us were in the HP category.  This means that I also came-in the last place for High Power!  Still, I had fun and a certificate, so no complaints.  It also prompted me to enter the 2020 NEQP as Low Power, which would give me a chance to come in first in that category for Carroll County.

Checking on results from other contests

Not all contests will send you your results.  I expect the big guns who finish at the top may hear something, but not every contest will let each minor award winner know about it.  A fellow ham sent me this link to use to check on results from ARRL events.

https://contests.arrl.org/certificates.php

Enter your call and you will get a list of PDFs suitable for printing or framing. Any that you earned a certificate for as well as any multi-operator stations you have participated with. Be sure to also enter any of your ex-calls. I found 2 certificates that I did not know about!

ARRL Certificate Search
ARRL Certificate Search
ARRL Certificates
ARRL Certificates

When I entered these ARRL contests my goal was to make QSOs and then import them into my QRZ log.  I did not really participate at a serious level and probably spent less than 10 hours on each one.  I wanted my contacts to count for the other participants, so I logged with N1MM+ and submitted the logs as if I was in it to win it.  When I entered the 2019 CQ World-Wide DX Contest SSB, I decided to give it more effort and operated for 15.2 hours out of 40 hours available.

Rookie Contesting

Many contests have an option for operators who have their licenses for under 3 years to enter with a Rookie Overlay.  I highly recommend that any hams who qualify for this do it.  In addition to competing against all the entrants in the contest, your score will also be ranked against just Rookies.  Competing against highly experienced operators with advanced contest stations is tough and there are many that are in that class.  Entering as a Rookie may give you a chance to compete against other operators who match your skills and equipment.  You can set the option in the contest set up in N1MM.

Rookie Contesting
Rookie Overlay

I Raised my Antenna for Better Performance

The 2019 CQ World-Wide DX Contest SSB was held in October.  I obtained spousal approval to put in more time on this one than any other contests I worked.  I was operating from my NH QTH with my IC-7300 and 500 Watts of power.  My 8010 EFHW antenna was installed at 50 feet.  My previous experience with the antenna was OK and I made many QSOs with it.  When I tried in the contest environment, it was not meeting my expectations.  I could not break into pileups reliably.  On 80 meters, I was only able to make QSOs out to around 1500 miles.  I decided to take the end of the antenna down from the tree at 50 feet and use my new Bigshot Slingshot Throwline Launcher to raise the end as much as possible.  I wrote about this in an article I posted on the NARS website.    It took me around an hour to raise the antenna to 70 feet and it made a BIG difference!  All bands showed noticeable improvement with 80 meters being the most dramatic.  My first QSO on 80 was to Ukraine, over 4000 miles away.

NH QTH Topography

My QTH in Mirror Lake, NH is located close to the top of a long ridge.  The land falls off sharply from 80 to 100 feet within a half-mile or less to the NE to SW.  It falls off less sharply for most of the rest of the compass points.  The arrow points to my antenna and how it is oriented below.

NH QTH Topographic Map
NH QTH Topographic Map

I am not sure precisely how much this added elevation adds to the apparent height of my antenna, but I’m pretty sure it makes it seem like it is even higher than the 70 feet it is up in the tree.  Additionally, the ground under the antenna is moist and mineral-rich and should be better than the average ground.

My Results!

Raw Score
Raw Score

Here is my raw score from N1MM for the contest.  I only had 301 QSOs, but many multipliers, and that really boosted the score.  The contest organizers sent me an email a few months after the contest. They asked me to provide details about when I was first licensed. I replied to them with my info and a screenshot of my ULS listing.  After that, I just forgot about it.  Once I learned about checking on results with the ARRL link, I decided to check and see how I did in the 2019 CQ World-Wide DX Contest SSB contest.

CQ DX WW SSB lookup
CQ DX WW SSB lookup

I saw there was a Cert available, so something was good.  I downloaded the certificate and found out I did way better than come in second out of two entrants in my small county.  Here is how I did:

CQ WW DX Contest Results
CQ WW DX Contest Results

I printed this certificate, suitable for framing!

Certificate of Merit - Rookie Contesting
Certificate of Merit

I was thrilled to see this and am very motivated to give maximum effort for the upcoming 2020 contest.  Now I plan to upgrade to a HEX Beam or Spider Beam for my NH QTH. If the location worked so well with an EFHW antenna I can only imagine how well it will work with a Yagi.  If I add more time in the chair and operate for closer to the maximum allowable time, I should be able to improve on this result dramatically.

Try Rookie Contesting

I would have been quite happy with my results scored without the Rookie Contesting Overlay but having a competitive result as a Rookie is very motivating and satisfying.  My three years as a Rookie last until the end of the year so I intend on entering a few more contests while I can.  If you qualify as a Rookie, you should try this out.

Jon, AC1EV

Student Teacher Contest Update!

The Student Teacher Contest Results have been updated with results from (ARRL) Summer Field Day and the 13 Colonies Special Event.  We have a new leader, Keith Sangillo, KC1IMK!

Abby, AB1BY Operating in the 13 Colonies Event
Abby, AB1BY Operating in the 13 Colonies Event

Keith, KC1IMK and Abby, AB1BY operated remotely from the AB1OC/AB1QB station during Summer Field Day as part of the AB1QB entry.  They also operated as K2K during the recent 13 Colonies Special Event.

2020 13 Colonies Special Event Certificate
2020 13 Colonies Special Event Certificate

Student Teacher Contest Update

With a great entry from the 13 Colonies Special Event of 281 non-duplicate QSOs in 3 hours, Keith, KC1IMK has pulled ahead of Abby, AB1BY.  The competition is still neck and neck – Keith has a score of 1208 and Abby’s score is 1180.

The contest score is the sum of QSOs made in a contestant’s top 4 entries.  Both Keith and Abby have reached more than 4 entries with the latest entries.  Now each of them needs to improve on their previous scores to pull ahead.  Full results and rules for the competition can be found at Student-Teacher Contest Series.

Next Opportunity

The North American QSO Party (NAQP) – SSB is coming up on August 15th,  With its 100 watt power limit, it will be a great opportunity for contestants to increase their scores.

Anita, AB1QB

Radio Amateurs Developing Skills Worldwide