Contents :

A collection of thoughts, and my notes about experiments and ideas, technical or otherwise, connected to Amateur Radio, Satellite working and monitoring and other electronics.

Saturday, September 26, 2015

Antennas at OZ9QV

Got myself moved safely back to Denmark, and got a bit of antennas in the garden.

 1) 3 band vertical for 6m, 2m and 70cm. Worked local on 2/70FM, and a bit of sporadic E this summer on 6m.

 2) Lately I got myself a multi-dipole for 80/40/20/15/10. Works on 30/17/12 as well. SO I got started doing a bit of CW QSOs ...

 3) Decided that 10m might have it last really good winter season, so I set up a half wave vertical (shortened 27 MHz Half wave). Just moved it into the garden and elevated the feed point to about 5m. Came in late in the afternoon and 10 was open to South America and South Africa. Worked CE, CX, ZW (ZS) and PY. Not bad for a first day with the new antenna. Given the opportunity the feed point will get up to about 7m with some good guy wires.

 Winter is coming, and I would like to try getting a bit more antennas up, possibly for 4m, and a wide band receiving antenna (active whip (Dressler) or a PA0RDT "mini whip" E-probe). This should work from

Monday, July 20, 2015

The Double Dutch QRSS grabber has disappeared forever.

The Double Dutch grabber has disappeared forever, due to a move. As soon as time allows, the "Thor's Hammer" grabber will come up running. Some antenna is necessary. The grabber will likely, over time, be renewed to cover more than one or two bands.

Tuesday, January 6, 2015

Thor's Hammer again ;) - and the Double Dutch Grabber ...

In less than a year the Double Dutch (PA9QV) grabber is going to disappear, and Thor's Hammer will probably be expanded to more bands when time to get the hardware running allows. Thor's Hammer will still be unattended for that year, but after that it will be mostly attended.

Wednesday, March 7, 2012

Thor's Hammer Frozen Again

The Grabber is down, again.

It is running unattended, so will be restored when someone can attend to it.

It still needs some recovery program if a reboot should occur (e.g. due to a power failure).

Tuesday, September 27, 2011

Thor's Hammer back on track

Thor's Hammer has been down for a while due to a thunderstorm putting it offline.
The grabber is on line again.

If I have sufficient time one or two new bands will be added to TH when I go there next time. 80m is a likely candidate, since I have a 80m RockMite built and ready. However, I may have to add another low powered PC to take the load off the current one. SpectrumLab is not the easiest on processor load.

I may see if Argo or Spectran is better in that respect. Tests needed, or, if anyone has experience, please tell me.

Monday, January 17, 2011

Thor's Hammer up and running

During some work at the place the PC had been switched off.

The "Hammer" is running nicely again since Christmas.

It is running on 10MHz and 500kHz as before. Possibly with an extension in a few months. Some antenna work and some soldering needed.

Next band will probably be 80 (3500kHz). and a simpler receiver for 10MHz. The original receiver will then be set to yet another band. Some wideband antenna work will be necessary for this to work out.

Time to get the soldering iron warmed up again.

On the PA9QV front the next soldering project should be the FA-SDR. All components including the housing have arrived, only a PA (1W) is missing yet. I may build a small wideband PA myself.

Still a lot of kits to build, but slowly getting started again.

Saturday, November 20, 2010

Thor's Hammer stuck

I have noticed that Thor's Hammer has stopped uploading. Reason unknown, but could be the Inet connection has been lost, or the PC has been rebooted due to a power outage. I will have to wait and see.

Since I cannot just go there and back again in a day It will have to wait till I can go there for it to be updated