SM2OAN, RX-array and carpentry

Since we hadn’t finished up all work at SM2OAN I ended up going up once more. We first pulled up the 20m yagi (5el) into position and after that the 5el for 15m. When this was done we removed the tram wire and we lifted the 2el 40m a bit higher (as high as we could). The work has gone very well and I believe SM2OAN is now very happy about his setup, especially getting the 2el 40m added plus getting a stack on 15m as well. I also built a stackbox for him so that he can switch it. After we were finsished, we went to SK2HG since they had a meeting and it was very nice to meet some friends.

I have also spent quite a lot of time at SJ2W lately. I am trying to work in hours so that I can go down on Thursdays which gives me a whole day more. Normal weekends are way too short but this gives me another day. I’ve done a lot of work on the Hi-Z RX array building Bias-T to get DC power there, finishing up the RF-link to switch it etc. I used 16mm water tubing to protect the RG-6 coax going from the cabinet in the middle out to the verticals and I will have about 50-70m of it so that I can have the coax on the ground close to the RX antenna. Further away I will put the coax up in the trees as it protects it better.

I have also built some more protection for the rotors of the different towers, the military tower still need some work before its finished but I believe I’ve done pretty good progress on it at least.

Various work

I got to borrow and ACOM 2000A from SM2OAN when I was up helping him, so I have built a shelf for it so it doesn’t stand on the floor. I have also painted a few things, such as the rotator cabinet for the moskojärvi tower and also the cabinet I built for the inband tower. Hopefully I will get this cabinet moved to the proper location next weekend and installed partly.

I also changed the power supply to the WIFI-link. I am trying to remove all the switched supplies that are not really needed and can be replaced by linear ones. I bought a few linear ones from SM2RHL during the SKRA flea market which I put to use.

Me and SM2XJP also talked to the power line company about a potential noisy transformer that is currently not in use. So they were kind enough to remove the fuses before the SAC CW contest and man the bands are quiet now. There is still at times some noise from the power line so we will need to try finding that and telling them about it.

SAC CW 2016

I had a blast, everything worked great and claimed new SM record plus claimed #1 Scandinavia

Scandinavian Activity Contest, CW

Call: SJ2W
Operator(s): SM2WMV
Station: SJ2W

Class: SOAB HP
QTH: Burtraesk
Operating Time (hrs): 24

 Band  QSOs  Mults
   80:  317    40
   40:  787    61
   20: 1071    73
   15:  207    47
   10:    7     5
Total: 2389   226  Total Score = 1,296,788

Club: Worldwide Young Contesters


This was really fun. I wasn't sure if I would operate the contest but felt
pretty motivated so I decided to do it. I did DUAL CQ for most of the contest
and I need to practice a lot more, even though I felt it worked pretty well. I
managed to do the best CW rate hour I believe we have had at SJ2W with 194 QSOs
and this really makes SAC a blast to operate. I have never really been fond of
the contest since normal SO2R operation with hunting mults does not work. DUAL
CQ has been done for a long time by operators in SAC including myself, but this
was my first time I did it pretty much all the time regardless of rate and I
felt it helped my mults. I didn't move that extremely much mults (I think 14
successful moves but a lot of tries) and still had pretty decent mults. However
I expect that my UBN will suffer from this type of operating but hopefully not
too much.

As usual it was a blast to see the progress at, especially the
battle with Kim, OH6KZP @OH2BH who I before the contest thought would be
unbeatable but propagation's were good enough to have good enough US runs on 20
and 40m to be able to get enough point advantage towards him. JAs were very
active on especially 15m with tremendous signals. Rumors say that OH0Z placed
in the middle between me and Kim, some day I hope the OH0s will join the fun
with the online scoreboard as well :) I am happy that OH0V was not QRV :) 

Station worked flawlessly, only wish I didn't have shared towers for 20/40m,
makes you a little handicapped but I guess I could always put up a bit more

DXLog with two keyboards used and it workged great!

The D1 prefixes were not recognized so I expect the score to go up by a few
points after those are scored by the SAC robot.

Seems like a new SM record too which is surprising considering 10m, but the
lowbands were really good instead.

80m: 4-SQ
40m: 3/3el + 2/2el + 4-SQ
20m: 6/6/6el + 5/5el + 4el @EU
15m: 6/6/6/6/6el + 6/6el + 5el
10m: 6/6el + 6el @46m

K3 + ACOM 2000A (Sponsored by Ojojoj Music AB)
TS590SG + ACOM 2000A (Borrowed from SM2OAN)



Another adventure to SM2OAN

A couple of weekends ago I went to SM2OAN so we could do some tower work in his 36m tower. His 40m 40-2CD broke this winter so he has built a fullsize 2el yagi that would replace the 40-2CD. I went there on Friday and we managed to rig the tram line and also changed the 5 GHz internet link that was damaged in a lightning strike this summer. I also tilted the 30m yagi so we could get by it without needing to lower that one to the ground as well. This QTH is amazing and with good weather an awesome place to be at.

After a night of rest and a great breakfast SM2GCQ had showed up to help us out. We took the 5el for 20m down and then continued by moving the 6el for 6m down to a lower position to make room for another 5el for 15m to get a 5/5el stack also on that band. After lunch I went up again and we took down the 40-2CD which went fairly well even though things take so much time when doing them in a tower, and I had a few issues but it eventually came down.

After dinner we tried to lift the 2el 40m and it is the same type of design as my inband 2el except different tapering (used yagi) and luckily it was tuned pretty much perfect. He wanted a bit lower than my yagi so it was resonating at 7.08 or so and 1.5:1 on the low side of the band and 1.9:1 at 7.2 MHz which was about what we aimed for.

After I came down from attaching the top 2el for 40m I was quite tired and got a nice cold beer when touching the ground. On Sunday the weather was way too windy to do any more work so we still have the job of lifting the 5el 20m and 5el 15m before we can call the work done. We also will lift the top 40m yagi about 1 meter higher after the tram wire has been removed.