Poor conditons but still worked a few…………..

Throughout the day yesterday I was getting propagation updates on my Iphone, things were not looking to good. The decision was made to work on my Elecraft K2 build and not get frustrated with poor propagation conditions. After about 20 minutes of working on the K2 I just was not getting into. Putting the project down for the evening I flipped on the K3 just to check out the band conditions. One of my handy tools for doing that is the Elecraft P3. It's great for seeing the general condition of a particular band. It seemed that 20 meters was not doing to badly considering the conditions. The first station I ran across was H70ORO from Nicaragua. His signal was rather strong considering my attic dipole does not seem to favour Central or South America. His code speed was a comfortable 20 wpm and really not much of a pileup. I made contact with only 1 watt which gave me 2,190 miles per watt contact.
The next (and final) station I contacted was EA4DRV, being pumped from my last 1 watt contact I tried working this Spanish station with 1 watt. It didn't work out as well and the contact was made eventually with 3 watts. After this contact it was time to flip the switch once again and move on to making lunches, arranging morning work clothes and all that other fun stuff.  It goes to show you that even when the propagation is in the dumpers contacts are still there to be had!

My Elecraft KX3 has a ping??

This afternoon I was planning on setting up the Alexloop into the living room and try some operating with the KX3. I was wanting to see how the loop worked in the living room. I was going to bring it on the deck but there was the threat of rain. Out of the blue when I was on 15m  in CW mode whenever I keyed a letter and then released the key I would hear a very loud "ping" in the headphones. This only happened on 17m, 10m and 15m. I tried changing the headphones, using a dummy load and reducing the power to 0 but there was always a ping noise heard in my ear? I am not sure if I inadvertently changed a menu option that is causing this. This brought the living room KX3 operations to an abrupt end and off to the internet to see what was going on with the rig. I have posted the question on the Elecraft reflector as well as here on the blog.
Problem has just been solved seems if I have the rig on dual RX and VFO A and B are very close to each other I am picking up "me" on VFO B. Which makes sense and when in dual mod the head phones are split with VFO A in one ear and VFO B in the other. This would explain why the ping was only heard in one ear!

Kit build came to an abrupt stop

Last weekend I was working on my Elecraft K2 project all was going well until I tried to clean my Weller soldering tip in the wire sponge. For some reason it the wire sponge was not letting the soldering tip go. It was as if the tip was soldered to the sponge that was supposed to clean it! I did free the tip from the sponge and I tried to clean the tip once again and the same thing happened but it was even harder to remove from the wire sponge. I then took a closer look at the Weller soldering tip and half the tip was missing, it seemed to have come off. I never had this happen in the past with these tips and of coarse it was this tip that I did not have a spare of. I did pick up some new tips (4 of them) and will now be able to continue with my Elecraft
Wire sponge
K2 project once again. At one point I was using just a sponge that was damp to clean the tip's but I found this cooled the tips down and the soldering was affected. Has anyone out there ever had the problem of the soldering tips dissolving or breaking off in the wire sponge? The temperature on the Weller WES51 is set to around 800.

Have you ever been listening to something that may not be there???

Thought it was time this evening to power up the K3 and see what was on the bands. The software  I use is DXLab and it comes with a spot collector as it's called. I noticed a spot for AX7GN on 20m so I double clicked on the spot and the K3 magically was there! So here I am listening for AX7GN and yes there is a station there calling what sounded like CQ....or did I want it to be a station calling CQ? Well I hoped it was not little voices in my head talking to me. I heard nothing so I just put my call out there....and listened just maybe a little to intently. I did hear what sounded like VE? VE? By this time the APF was on the RF gain was being adjusted and the filtering narrowed.  I gave the call again at a deafening 5 watts!! Between the static and the ringing sound from the APF  I thought AX7GN was giving out what  "KINDA" sounded like my call.....or was it those voices again!! I passed along a 559 but did not hear much in return. To be honest I am not sure what the heck happened.....did I want to hear my call so bad that the static kinda sounded like VE3WDM?? For a short time I listened to the band and low and behold AX7GN was there and answering some U.S calls! I'm not going to put this one in the books as I am just not 100 percent it was just not the DX voices playing games with me. Has this ever happen to you??

The bandwidth on the Alexloop.

The next step in my Alexloop tests is the bandwidth in which the loop has. Again the antenna is mounted in a bedroom/office on the second floor of the house so that may have some affect on the SWR. I do plan on getting the loop in the out doors were the ceiling, walls and surrounding furniture do not have an affect on the loop. Below is the bandwidth results.
28.004 (SWR at 2.2) to 28.060 (SWR at 2.1) around 60 Khz of bandwidth.
21.020 (SWR at 2.0) to 21.070 (SWR at 1.7) around 50Khz of bandwidth
14.000 (SWR at 2.1) to 14.035 (SWR at 1.9) around 35Khz of bandwidth
10.110 (SWR at 1.8) to 10.125 (SWR at 1.9) around 15Khz of bandwidth
  7.005 (SWR at 2.5) to 7.015 (SWR at 2.6) around 10Khz of bandwidth
 I did however use the ATU on the KX3 and the SWR was flat when used on all bands so if I want I can use the tuner and increase the bandwidth of the antenna. I do know that my attic dipole on 10Mhz the SWR is about 9.1 to 1 and the tuner will flatten that out and I have made lots of milli watt contacts all over the world. So the next step is to get this antenna out doors and give it a whirl out there and see how it does.


The Alexloop vs my attic dipole

The new Alexloop antenna
Just over 2 weeks ago I placed an order for the Alexloop,  For some time I have been debating what antenna to use when I was out and about with my KX3. I looked at the Miracle whip, Par end fedz antennas and the Alexloop. For my needs it boiled down to the Alexloop. I did have a miracle whip in the past and it is a great antenna but just not worth the money for the performance you get. The Alexloop was ordered and arrived within a week and a half!! I was very impressed with the reviews online and the testimonials at Eham. . The antenna comes in a very well made carry case that can be taken into the field with all parts contained for your setup......well almost all parts...a tripod is one of the recommend ways to setup the antenna for field work. There are other ways it can be deployed including holding it by hand (not as young as I used to be so this method my not work for me). You can clamp it to a pic-nick table or attach it to a chair....just for starters.  The unit cost's 299.00 and I will say this is not cheap but it's very well made and portable as well. The case that holds the unit is about 1.5 by 1 foot in total. I also want to add that the case is very well made with a shoulder strap and carry handle.

A quality case

So lets get to the nuts and bolts.....how does it work....sure anyone can say anything about their antenna but the proof is in the radio waves!!
Antenna location..cat standing guard

I wanted to do a comparison between my attic dipole which is the Alpha Delta DX-EE up about 30 feet in the attic and the Alexloop set up in my XYL's office just opposite my radio room. Let me state that this is not a comparison to see which antenna preforms better as that is not a fair comparison....but I wanted to see how well the loop did compared to my attic dipole. The Alexloop was mounted on a tripod....well ty-wrapped to it as the the Alexloop would not fit over the tripod center pole section. This is something I will have to work out later. Each of these antennas have their disadvantages....the dipole is in the attic, this means a wooden roof above, rafters all over and insulation below. The Alexloop is in a second floor room, it's a small loop antenna and very close to the ceiling. So really both antenna are far from ideal when it comes to location.
Temp tripod mount
For the rig I used my Elecraft KX3 (as this is the rig I will be using when in the parks, backyard and where ever else I decide to go!) The power output was set to 5 watts and the bands I chose were 20m and 40m. The plan was to run coax from the Alexloop to a 2 position antenna switch and switch between the two antennas. The Alexloop did not seem to take a liking to the added coax. I was not able to get the SWR down below 2. Once I used the length of coax that came with the loop (about 10 feet) all was well. This just meant I was going to have to connect and disconnect the KX3 from one antenna to the other for the comparison. I was calling  CQ on 14.060 and 7.020 on the attic dipole and call CQ on 14.050 and 7.032 on the Alexloop and check out the Reverse beacon network to see who was picking up the CQ call. Not sure if the conditions were not all that great but both on 20m and 40m the attic dipole just got hits in the U.S as did the Alexloop. There was one big surprise when the Alexloop had a hit with OL5Q (along with the attic dipole) I was very impressed that a loop antenna in a bedroom was able to get a report from OL5Q!!
My overall impressions of the Alexloop are as follows:
1. Shipping was fantastic, this antenna got here from South America faster than products I have ordered from the U.S.
2. The support is great, I had a question about the loop when it arrived and it was answered within 30 minutes!!!!
3. This unit is quality quality quality from the carry case to antenna!!
4. The tuning was a cinch, turn for peak noise and then transmit and tune for lowest SWR....takes about 20 seconds!
14.060, 7.032 Alexloop
5. Assembly is done in 4 minutes for a first timer and I imagine with practice I can cut that time in half.
6. Antenna foot print is very low profile and can be used vertical or horizontal.
7. The SWR on 20m and 40m (only bands used so far) was 1.4 at 14.060 and 1.7 at 7.032.
The bottom line is I am very very impressed with this antenna and I will be taking it to the field and updating the blog on how it does.  Up to this point would I recommend this antenna.......dam right I would it's support is excellent, quality of the product is way above par and so far the results have been very impressive.
 

Time for a change,

The IMac and KX3
For those of you who are regular readers of my blog know that I run an Elecraft K3 along with Windows XP programs. I also have the Elecraft KX3 that runs on Mac programs. My eyes were sure opened up to the software programs out there for ham's running on Mac machines. I will admit for this long time Windows user getting the swing of Mac took some time.....and I am not done learning as of yet! My wife Julie is very much into photography she has a Mac pro laptop and did have the IMac desktop PC. Some months ago she felt it
Downsizing
was time to part with the IMac. I simply walked the IMac down the hall to my shack and hooked the KX3 up and thus began the Mac adventure. Julie since then has been taking some evening College course's in photography, this has put a flame to her picture taking!  As they say " to make a long story short" the IMac has found it's former home in Julie's office down the hall. I am now a strict Windows ham again! It sure was a fun ride and maybe in time the funds will come in to get a Mac of my own.

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  • Matt W1MST, Managing Editor