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Archive for Moxon

bartg

BARTG RTTY Sprint

Posted by Jim Wilson 
· Sunday, January 27th, 2013 
· No Comments

This weekend I entered another RTTY (radio teletype) contest, the BARTG Sprint. BARTG stands for British Amateur Radio Teledata Group. They sponsor three contests during the year. This one starts at 6 AM local time on Saturday and runs to 6 AM Sunday. I was on about nine hours and managed to put 325 contacts into the log representing 58 different countries. It was fun but somewhat exhausting.

For this contest, I put up my 15 meter Moxon beam and used the armstrong method to point it in the general direction of where I expected the contacts. In the morning it was pointed toward Europe, then in the afternoon toward South America (very little activity there) and in the early evening toward Japan. The rest of the time and on other bands, I used my verticals. This was the first contest that I did a fair bit of running. I’d search and pounce the band once and then move to an open frequency and run for a while. It worked pretty good.

BARTG RTTY Sprint QSO's

BARTG RTTY Sprint QSO’s

I’m not entirely sure of my score. I used RUMped and selected the one BARTG contest that was available in the menu. Then I learned that it was set up for the BARTG HF RTTY contest rather than the Sprint. This meant that the score computed multipliers for DXCC separately on each band. The Sprint only counts multipliers once for the entire contest. At least I know I did 325 QSOs.

This experience is also pointing me more and more toward getting on Windows and setting up N1MM logger or more likely WriteLog as the latter appears to be better set up for RTTY contesting. I did make one significant move toward Windows in that I purchased a surplus Windows desktop computer. We’ll see what it’s like when it gets here — and what it will take to get it up to speed for ham radio and digital modes. Should be yet one more adventure ham radio.

No Comments
Categories : Radio Contesting, RTTY
Tags : Contest, Moxon, RTTY
K5ND Moxon Beam

Moxon Video

Posted by Jim Wilson 
· Saturday, July 21st, 2012 
· No Comments

I was pleased to see my K5ND Station Tour video play on Ham Nation in June. This time I’ve created a video on my 15 meter, two-element, Moxon beam. The Moxon has been a popular posting on my blog and it is one area of the station that I built myself from plans published in the May 2003 issue of QST Magazine. Written by KG4JJH with additional detailed drawings, the beam has worked flawlessly since the first time I put it up. It also helped me breakthrough in working Europe and Asia in contests using QRP power levels.

For this video, I added a CAD U1 USB microphone to record the voiceover. I found this to be a marked improvement over using the internal iMac microphone. For editing I again used iMovie. With this video I used all still images and the Ken Burns effect to provide some motion. My current video camera is not HD and I felt that the video in the Station Tour looked pretty rough compared to the still images. This microphone will really come in handy when I record some more podcasts. BTW, I’ve found a couple of P.G. Wodehouse short stories that will work perfectly for my next podcast. Stand by.

I’ve posted the video on a page on this site titled Moxon Beam. Check it out.

No Comments
Categories : Antennas, Video
Tags : Antenna, Moxon, Podcast
IARU-HF

IARU 2012

Posted by Jim Wilson 
· Sunday, July 15th, 2012 
· 2 Comments

I was really looking forward to this contest, which is one of my favorites. Just 24 hours and usually at a time of year that doesn’t pull me in a lot of different directions. I prepared by testing the new push-up mast and trying the vee beam and Moxon. The Moxon won out and did great work during the contest. This was a low power, all-band, CW only operation. I considered QRP, but I’m beginning to feel that the international contests are best entered at low power, with the domestic contests better at QRP power.

A CME Flare from the sun hit the earth about 4 to 6 hours into the contest, which shut down some of the activity. There were times on Saturday evening that it seemed like the North American QSO Party as no other countries were heard. None the less, at other times I did find a number of countries that I hadn’t yet worked on 80, 40, and 20 meters. Also found Saudi Arabia for a brand new country on any band.

I had hoped to break 500 QSO’s at least but only got into the low 300′s, up a bit from last year’s contest. Allergies hit me with a vengeance and really tired me out. So I was only at the controls for around 17 hours and then it was all methodical, somewhat slow, search and pounce, with one run producing a grand total of 3 QSO’s. I’m hoping to do SO2V for the next contest as I will be installing the second receiver in the K3 in the next month. That looks like an interesting project. From looking at the manual it appears more complex than I was considering.

When taking down the Moxon, I broke one of the fishing poles. So now I need to determine how best to repair or replace. I’d been looking at a Spiderbeam or a Hex Beam. Not sure the pocketbook can afford that expense this year. So I’d better be looking for a new fishing pole!

I hope you had a great time working the IARU HF Championship.

2 Comments
Categories : Antennas, CW, Radio Contesting
Tags : Antenna, Contest, CW, Moxon
moxon

Moxon

Posted by Jim Wilson 
· Wednesday, July 4th, 2012 
· No Comments

Two years ago I built my first directional antenna, a 15 meter two-element Moxon. You can read my write up on the project here. A few months ago I spent some time building a Vee Beam, with that write up here. A key part of that project was a 35 foot push up mast that was a huge difference from the painter pole I’d been using with the Moxon. This week I spent some time evaluating the Vee Beam and the Moxon trying to consider which one to put in play for the IARU HF Championships about 10 days from now.

The Vee Beam just did not cut it. I had hoped it would work well over 20 to 10 meters, and it would have worked reasonably well, but I just can’t get even a small one (65 feet per leg) wedged into my backyard, and get it pointing to population areas for the contest. My sense is that I’ll be replacing the 4:1 balun with a 1:1 balun and using it as a dipole on 80 meters for the Sweepstakes and NAQP contests.

100_2264 100_2272a 100_2249 100_2253 100_2247 100_2245 100_2235
35 feet high near the back fence.
Straight up the mast showing the wire layout.
Construction of the box that joins the fishing poles.
Tilting just a bit toward the pool.
Slightly better perspective on the construction.
Here's how it goes together.
The fishing poles screw into the sides of the box.

 

Having tested and resolved that the Vee Beam just wasn’t the ticket, I set up the Moxon on the 35 foot push up mast. First QSO was American Samoa and the next day I pointed it at Europe and started working the few stations that were on the air. I’ve taken a few photos of the beam and the push up mast. This works so much better than the painter pole, which I could only really elevate to about 15 feet. Moreover, the painter pole required guying along with ropes to the antenna to keep it pointed in the right direction. This one locks in place and with a good armstrong adjustment can be pointed in the desired direction as the bands change.

So it looks like I’m all set for the IARU HF Championships, putting the Moxon in play on 15 meters along with the MA6V and HF2V to cover 80 to 10 meters. I’ll let you know how it goes.

No Comments
Categories : Antennas
Tags : Antenna, Moxon
googlemail_tap-84

Gmail Tap

Posted by Jim Wilson 
· Saturday, April 7th, 2012 
· No Comments

In case you missed it, Google did a great April Fool’s joke around Morse Code. They called it Gmail Tap and showed mobile devices with two button keyboards —- a dot key and a dash key! You can see their very well done video at Gmail Tap.

Morse Code is doing well, even with the April Fool’s spoofs. There are a number of artisan key makers from Begali, to Scheunemann, to Frattini. Vibroplex is under new ownership and even introducing new models of keys. I’m particularly partial to Begali keys, using their Graciella model in my ham shack and hoping to put in place their HST key at some point in the future. You can find one of my posts on my small telegraph key collection here.

While I’ve looked at getting on some of the digital modes (setting up Cocoa Modem and listening in to some QSO’s), right now my only mode of transmission is CW or Morse Code. I enter the major CW contests, which is where I do most of my operating, and I watch the DX Clusters for CW contacts with new countries and new bands. Right now I’m at just over 170 countries confirmed on CW. This was done at 5 watts for the first 100 countries and now at 100 watts, all into verticals or on contest weekends into my 15 meter two-element Moxon beam.

This afternoon I’m working the QRP ARCI Spring QSO Party at 5 watts into my verticals. Not many stations on but it is fun to get onto QRP again and work a few folks.

Thanks for stopping by. Get your key out and make some CW QSO’s. Heck, try QRP as well! See you on the bands. 73..

No Comments
Categories : CW
Tags : Antenna, Contest, CW, Moxon, QRP
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