Tuesday, August 21, 2018

OL7M HAM SIGNPOST





Today we finished our HAM signpost and added another 8 callsign of our good friends and great active contest teams of the world, so together 32 pieces. One of them was Yasar TA3D, which, unfortunately, become recently tragically SK and at least by this way we want to remember him in our minds. RIP Yasar. Thanks again for all your comments which make us happy. It looks that there will be some more signposts all over the world soon. We are looking forward to see any photos. This whole project involved over 40 hours of the manual work and it is great that it is part of our OL7M QTH for the next years. We consider this project as completed, hi.
See you on the bands as OL7M in multi category or Pavel OK1MU/OK6W and Jan OK2ZAW/OL9A in single!

73 de OL7M gang

Thanks a lot to Katka XYL of Pavel OK1MU









 In the memory of Yasar TA3D

 Cheers and CU on the band!


Sunday, July 22, 2018

Erecting first 5el for new 20m stack to NA

We spent more than two weeks at Policko OL7M QTH. There is stil something to do and repair... 
But main target were antennas for the new stacks for 15 and 20. All antennas are G0KSC design, 2 times 5el for 20m with 15,7m boom and 3 times 6el for 15m with 14,8 m boom. There are photos of the first TOP 5el for 20m after 4,5 hours on the tower :)

Erecting





Thanks a lot to our new friend Pavel for big help! 

 READY!


Sunday, July 8, 2018

10GHz OpenWEB RX at OL7M QTH



During the playing with RTL-SDR I have decided to try 10GHz OpenWEB SDR at OL7M. There are very nice and cheap LNB converters with PLL and 25 MHz X-tal. I found cheap TXCO in China for a few USD. So this was really nice way to start building stable and cheap 10 GHz converter for the RTL-SDR. And what more, split two LNBs to two directions. It means 3 dB more noise, but why not. 

We do have new tall tower which has got nice view in 360 deg. First LNB looks to N-W and second one to South. There are easy copy OK0EA and SR6XHZ and during RS conditions also OE beacons.

And easy modification for cheap RTL-SDR with new TCXO: HERE


OE beacons during RS

LNB directions

The TOP of the TWR with 2m APRS antenna.
LNBs in box
 PC and RTL-SDR in USB HUB.