Inband progress

It has been slow with updates lately. I have been spending some time designing electronics for my new amplifier project with a QBL 5/3500 which was donated by SM3BDZ. The tube isn’t in perfect shape (90%) but it’s good enough to start building on. I will start posting pictures as soon as I start building something for it. Currently I am waiting for the RAGE 2 saw that I ordered from England to help me cut the L-iron needed to build the chassies for the amplifier.

Meanwhile today when I was milling boards for work I did some work on the inband electronics, the never ending project which I am very tired of working on. But now today I got most of the hardware done. Now I will need to finish the programming and also make some cases for the manouver boxes. Hopefully it will be ready for the first real try in WPX CW, since the broken coax to the vertical 500m from the QTH should be possible to fix by then since most of the snow should be gone.

I have talked with the neighbour about getting to put up a tower on his land and he said it was no problem. I guess we will need to write some kind of paper on it later and my plan for this is to run 400-500m of hardline over there and put up a 18-24m tower with some beams on 10-40m and some kind of antenna for 80m as well. That way we should not have more than maximum 3dB loss and we could use that for the inband instead of needing to share the main antenna system. This will however probably not be done this summer, but it’s a future plan. SM2RIX got hold of a drum of 1 1/4″ hardline (220m long) for us, that is a good start for that. Hopefully somebody else will donate or sell cheap the rest that we need.

I also spent a bit time last week at the local radio club here at the work QTH talking a bit about SJ2W. It was fun, more than expected amount of people showed up and I got to know a few more people, which is always fun.

Here are some pictures,

New remote 10×1 switch available

I have helped Microbit 2.0 AB, the maker of the remoterig system to develop the RF part of their new 10×1 antenna switch that they will be selling soon. It is an IP-based antenna switch which can be directly controlled over the internet making remote antenna switching as easy as possible. It can also be powered with the ethernet cable with the Power Over Ethernet standard. It is also possible to configure the RRC-1258MkII to switch the 10×1 automatically depending on the frequency of the radio.

The RF performance of the switch is excellent and it will hopefully be available to be bought soon.

Here is a link to the product page,
http://www.remoterig.com/wp/?page_id=1793

ARRL DX SSB

This weekend we had some visitors that came up from SM0. I did not plan any contest this weekend since the station is not yet fully functional but when SM0W called and asked if he could come and join us, since he had a work trip planned north during this week, I said OK. We will work as much as we can and luckily the station was in quite good shape before the contest, since I arrived already on Thursday evening. SA0AZT joined him on the trip north and I think he had a pleasant weekend at the SJ2W station.

On Thursday evening SM2LIY also joined and I noticed that the 60m tower did not turn. So I went out and the sound from the motor was the typical “one phase is missing” sound, so I suspected that a month ago when I tripped over a cable that I might have pulled something out of the rotor, and the suspicion was confirmed and easily fixed. However when I turned the tower I noticed that it seemed to have ice in the bottom bearing so with help from SM2XJP we took the blow tourch and got rid of the ice but when XJP turned the tower I noticed the bottom plate turning as well. So I took out the welder and welded it stuck to the bottom base and now it works as it should.

The contest sucked, it was horrible propagations. During the first night/morning we worked 69 qsos (!) which must be a bottom low for us. We had no openings at all on any band. It got better on Sunday but still not great, however we had a few nice moments of big runs and I think that SA0AZT at least enjoyed his time on the radio.

                    ARRL DX Contest, SSB

Call: SJ2W
Operator(s): SA0AZT SM0W SM2LIY SM2WMV
Station: SJ2W

Class: M/S HP
QTH: Da Traesk
Operating Time (hrs): 38

Summary:
 Band  QSOs  Mults
-------------------
  160:    0     0
   80:   15    14
   40:  217    43
   20: 1382    61
   15:  564    58
   10:   41    26
-------------------
Total: 2219   202  Total Score = 1,344,714

Club: Worldwide Young Contesters

Comments:

SM0W had planned a work trip up north and asked if he could join and do ARRL. I
had not planned any operation but I said yes and we did our best. However
propagation's were horrible and after the first night/morning we had 69 qsos
(!).

SA0AZT also joined SM0W on the trip north and did a good job along with the
regular SM2LIY.

It got better on Sunday but the lowbands were really bad and 10m didn't really
open up towards north american except for a few sporadic openings via aurora
and side scatter to south america.

160m: 39m vert
 80m: 4-SQ
 40m: 3/3el
 20m: 6/6/6el
 15m: 6/6el
 10m: 6/6el + 6el @46m

Rig: 2xFT1000MKV
Amp: ACOM 2000A (Sponsored by Ojojoj Music AB) + 4CX1500B

ARRL DX CW

Played around in this one testing the remote system. It’s perfect with ARRL since you don’t need to rotate the beams since the big tower is not rotatable yet via the remote. Total 18.5 hours of operating time and I had a lot of fun!

ARRL DX Contest, CW

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

Class: SO Unlimited HP
QTH: Da Traesk
Operating Time (hrs): 18.5

Summary:
 Band  QSOs  Mults
-------------------
  160:    1     1
   80:   25    19
   40:  276    49
   20:  594    55
   15:  551    56
   10:  281    46
-------------------
Total: 1728   226  Total Score = 1,171,584

Club: Worldwide Young Contesters

Comments:

This was fun, I took part of the contest working remotely from my work QTH. It
worked great with the remoterig system (http://www.remoterig.com), I could not
notice any delay and pretty much was just as being at the station. I worked
18.5 hours in the contest and propagations were very interesting. At some
points they were awful but they also generated great opening on 10m via aurora,
which would not be possible otherwise with SFI just over 100. I wish I did work
the first night though, that would have given me probably 40 more mults since
160/80m was great, which was not the case the 2nd night and Sunday evening.

Kind of wish I did work this one seriously at location, but there is always
next year.

Here is a video I made a few days ago of the remote control @work QTH,


160m: 39m vert
 80m: 4-SQ
 40m: 3/3el
 20m: 6/6/6el
 15m: 6/6el
 10m: 6el @46m

Rig: TS480S + remoterig + N1MM
Amp: ACOM 2000A (Sponsored by Ojojoj Music AB)