AmateurRadio.com

Outcome of my damp MFJ 1788

The weather has been up and down up this way from snow and minus 2C then up to plus 14C it's the top end of the temp scale that I enjoy but that will soon come to an end as winter is on it's way! While on the subject of the warmer weather also comes showers and damp weather, for some reason this has an affect on my MFJ 1788 isoloop. In past I have found my antenna to be SWR sensitive to the damp and or humid weather. I had posted on some of the mag loop user groups to see if  others had the same issue. I was not able to get lots of responses but the consensus was that weather really had no effect on others loop! I ended up taking my loop apart and just checking out the insides and all looked good.

The work of the internal tuner

Once the damp and or humid weather changed all was well with the loop. The effect on the antenna is the SWR will not go below 2.7:1 on any given band but any other time the SWR would be either flat or close to it. I posted about this very problem this past summer on my blog and it really was not a humid summer so the problem did not arise that often. Now that it has happened again my own conclusion is the damp weather has an effect on the dielectric characteristics of the air that separates the capacitor plates in the antenna. This by no means is a scientific conclusion but as for simple old me it's the conclusion I am leaning toward. I do have an internal antenna tuner in the Elecraft K3 and my Elecraft KX3,

The SWR of the antenna

this allows me to lower the SWR so the rig does not see the high SWR.

My drive to get our snows on....just in time!

Relaxing at the radio with some tea

Have to go into work on Sunday so I wanted to spend some relaxing time at the radio this afternoon and see what was up on the bands. I started out on 17m and it did have some DX on there but it faded very fast. I then received a call from our veterinary that our cats food was in for pickup so it was off to get that. When I returned it seemed that 17m things were just not happening. I jumped down to 20m and came across KB3RUN/QRP calling CQ I came back to him and he did hear me BUT this nasty QRN came over the radio and wiped out his signal all together. It seems to be a plasma TV that is in the area somewhere and by the time I filtered it out KB3RUN/QRP was gone. I did send an email just to let him know I did not forget about him. Most times on my contacts and almost contacts I send an email to thank the op for the contact.

I have been on the radio now and then this past week the only one there was me and the static, there is nothing wrong with the K3 or the antenna the wrong has been the atmospheric conditions.  This weekend alone there have been 3 M class solar flares not making those in the CQ SSB contest happy campers. Not saying there is no DX out there as I have been reading from fellow bloggers and there has been some DX contacts but for me it's just not there. I was on the radio today and was not able to even raise U.S contacts just south of the boarder.
Lets hope the conditions some what improve this week…..

Nice to get back on the air again

Just this morning I was looking over my last blog post and could not believe it was posted 3 weeks ago! I will say that things here at VE3WDM have been busy and it has not been with radio time. We had our Thanksgiving holiday last weekend and that weekend was packed with family things, shopping and making a turkey dinner. This year for the first time I tried cooking the turkey on the BBQ using the rotisserie, seems it turns out much better when the bird is done old style in the oven........live and learn. The other sliver of my time was taken up with work and once you factor in sleeping and eating not much time was left for radio. Last evening I pulled a 12 hour evening shift at work and arrived home this morning not feeling to bad so Julie and went out for a nice breakfast and then home to some well deserved radio time. The rig was tuned to 17m and I heard GI4DOH calling

GI4DOH

loud and clear  from Northern Ireland. I gave him some calls but was not heard but I did hang in there and finally my 5 watts made it to him. It was nice to get back on the radio as I find this to be a very relaxing time. I then jumped off 17m and over to 20m but there was a huge contest presence there (not that there is anything wrong with that I am a huge contest fan) so it was back up to 17m again. It seemed that for this afternoon Richard was going to be my only contact but it sure was nice to get back on the air again!

I spent some time on 20m in the CW portion of the band and as always I wanted to make contacts with the lowest power possible. I came across 9A2G who was calling CQ and at the time he was not to busy with takers. This is a great opportunity for me to drop my call to someone who is listening. I started out at 500mW's and moved all the way up to 5 watts and nothing no contact. He did have some stations answer his CQ  and some where very weak so  he had good ears but not for VE3WDM. I then came across EG7MAL and I worked my way up to 5 watts and he came back to me with VE3?. He decided to move on as I was just not making the trip. At this point I was wondering how my low power signal was doing so I decided to call CQ at the QRP watering hole on 20m. I was checking with the Reverse Beacon Network to see how I was doing.  My 500mW signal was heard by AA4VV in North Carolina which was just over 1,000 miles per watt. I then bumped my power up to 1 watt and was very happy to see F4DXW was hearing me which meant my 1 watt of power made it 3461 miles. I did not make any contacts but I did find a way to make the radio evening a bit exciting even without making a two way contact.

Transmitting with my wet noodle

I was off work on Friday and in the afternoon I found some time to get on the radio, I was pleased to see conditions had somewhat improved. The bands most active for me were 20 and 17 meters. The MFJ 1788 loop was very good at picking up DX I heard but was not able to contact G3XOV from England his signal was a strong S8 but as I waited for him to clear the callers who were before me his signal faded to S2 I still tried but was not able to make the contact. I then came across a station who's call started with "Z" that letter always gets my attention. From these parts a "Z" call could be very good DX. The call was Z63MED very odd call I thought maybe a special event station, I looked it up on QRZ.COM and found out it was a station from Kosovo. This country is still a developing story when it comes to ham radio. It does not as of yet have DXCC recognition as it just became a country in 2008. For more Kosovo ham radio history go to QRZ.COM and look up the call Z60A this is the call for the Amateur Radio Society of Kosovo.
Now for the exciting news…….I ended up only making one contact and it was with EG4GET and this I found out was a special event station in Spain and has to do with football or soccer as we know it here in North America. There are 20 special event stations you can contact and contact (from North America) with 5 gets you a silver award and 10 will get you the gold award, for more information follow this link . So back to the exciting news…….I dropped the power on my K3 to 1 watt and made the contact with this special event station without really any trouble for a distance of 3,754 miles per watt! Looking back when I moved into the condo and only being able to use a small antenna  in less than ideal conditions I felt my DX was going to be south of the boarder and that's it. I have come full circle to hitting over and above thousand miles per watt contacts. My record for miles per watt at this location is still 18,470 per watt in the ARRL CW contest.

W1ZU's home setup.

I had some spare time just before dinner time and thought it would be a nice idea to sit down and relax at the radio. The rig was set to the QRP watering hole of 14.060 and very soon after I heard W1ZU calling CQ. Now having said that I just read the other evening in my CQ magazine of how important it is to listen, so I thought I would give the ears a workout and the key could sit idle. By listening I found out that W1ZU was operating from a summit in Maine, that he was activating SOTA (summits on the air) summit W1/DI 006. Not being an active SOTA chaser I did some more listening and was very surprised how fast the pileup developed to contact him. It would seem you can obtain points for contacting summits and this one was worth one point. Once the pileup settled down I threw my call out and Scott came back to me with a decent report. If I did not spend the time to listen and just tossed my call in and make the contact and move on I would never had learned the detailed info about this contact.