OK1KIR EME Team - News

June 19th 2010

We were active on 6 cm as last check before 6 cm Activity Weekend. We QSO Gerard PA0BAT as initial #38 and Brian G4NNS. Both station has very nice signal. Then we tried JT4G QSO with Brian. Brian's signal was "speaker copy" but we were not able to decode each period. Moon was almost at Zenith so change of Doppler shift was quite fast. Also signal was spreaded about 75 Hz. It takes some time to finish QSO; JT4G initial #3 on 6 cm.

 

June 11th 2010

We were again QRV for Hermann expedition. He was in Finland, KP08TQ today. On 70 cm we decoded his signal for almost the whole two hours he was on, but have not succeeded. The signal was from -21 to -29 dB. The last two decodes were
VV DEFEKT
QSY 23 cm
Then we QSY to 23 cm but we were not able to see him at all.

Later on we read on HB9Q chat messages from Dan:
432 MHz - 11 06:17:58 HB9Q Dan OH/DL2NUD KP08 has problems with preamp! now QSY to 1296.
1296 MHz - 11 07:44:48 HB9Q Dan OH/DL2NUD has problem when using PA, PC goes down! trys to find and solve problem now!
This makes it clear.

 

June 8th 2010

We were QRV on 70 and 23 cm for Hermann DL2NUD expedition to LA, JQ90NA. Today we were successful and made JT QSO on both bands. In addition we CW QSO Bruce PY2BS on 1296 MHz as CW #298.

 

June 5th 2010

We were QRV on 70 and 23 cm for Hermann DL2NUD expedition to trip of Europe, but heavy snow fall forced Hermann to QRT. Anyway, were successful. On 1296 MHz we made JT QSO with Filip SV1DNU and Derek ZS5Y, two new JT initials, DXCCs and Field. After that we made on CW Peter G3LTF and Hans OZ6OL. Thanks for nice QSOs!

 

May 30th 2010

New WEB pages

When we launched our web pages last year, we knew that it was just the first step. Today we introduce new dynamic (PHP and SQL) version that allows easier maintenance. We worked on it several months and albeit we know that it is not finish yet and likely never be we decided to switch to this version now. Few new functions and items have been already added and this will continue. I name amendment of photo galleries, mainly QSL skens and implementation of Field Maps as examples.

The author of this web page version is again Petr OK1AXH. I would like to thank him for all the effort and patience with me.

Maintenance of WEB pages is never-ending story, so please stay tuned.

 

May 23rd 2010

Another unsuccessful try for 3B8EME on 432 MHz. We only operate 4 JT65 QSOs, Michael RX9YM give us new JT DXCC - UA9 and new field.

 

May 22nd 2010

We tried to operate Dutch team at Mauritius 3B8EME on 432 MHz but we cannot see them on waterfall. We made three QSOs on 432 MHz on JT65B, new LO field.

 

May 16th 2010

Just two QSOs on 70 cm, Michael’s expedition to Kaliningrad R2/DL1YMK on CW as #375 and DXCC #70 and one JT65 QSO.

 

May 15th 2010

We were active on 13 and 23 cm. Successfully finished QSO with Michael at Kaliningrad R2/DL1YMK on both bands. More in logs.

 

April 24th 2010

14 QSOs in contest on 6 cm. Unfortunately no new initials, we heard ZM2TV SSB 54 and Henryk SP6GWN on CW M.

 

April 17th 2010

EU EME contest on 13 cm

38 QSOs in contest on 13 cm. Several new initials, Marek OK2DL as new Czech EME station, 9A5AA as initial #100 and DXCC 37 and WA8RJF. We also had JT65 QSO with Zdenek OK1DFC as JT #3. N8UO was CWNR 549.

 

April 16th 2010

Tonda and Vlada operate on 432 MHz. KP4AO on SSB, they have only 25 W in feed. Mark GM4ISM as new EME DXCC on JT65B.

 

March 30th 2010

Just one QSO, Herbert DF3RL on 432 MHz JT. He aslo heard us tropo.

 

March 27th 2010

EU EME contest on 3 cm

Tonda and Vlada operate in EU EME contest on 3 cm. 17 QSO were done including two new 3 cm initials, RA3AQ as #51 and LZ1DX as #52, DXCC #22 and the first LZ-OK 3 cm QSO. Unfortunately some problem with TWT and its power supply breaked our operation this weekend. We haven’t been albe to correct it yet, 3cm temporary QRT.

 

March 26th 2010

First test of new 432 MHz PA. It is home brew (PA3CSG design) GS35b. We need to improved cooling, our current cooling allows only 3.2 kV /0.8 A for JT and on CW we can go up to 1A. The second task is to better distribute power levels between TS790 , SSBA and GS35b. TS790 running full output power on 432 MHz cannot be used for JT modes as the heat inside of the tranceiver changes frequency during TX and RX periods.

GS35b.jpg

At 14:08 we operate VK4EME -22/-13 as JT initial #29 and the last continent for JT WAC - Thanks a lot!. Then VK4CDI -22/-19. Big thunderstorm came and every flashlight made JT decode almost impossible. Strong wind atacks moves our dish in elevation of +/- 0,01°. There was and pile-up when 8Q7QQ apeared on the band. We think the there were stations calling them even if they did not heard/decode them. For this reason their QSO with UA3PTW took about 30 minutes. We tunes bellow the main pile-up and after the first call at 19:24 8Q7QQ -24/O as JT initial #31, 74 DXCC and the first 70 cm QSO 8Q–OK.

Then Tonda changed the feed to 3 cm and before the contest started at 23:55 he QSOed WA7CJO 589/569 on 3 cm. We also checked Prague 3 cm beacon on 10368.905, we can hear it in every antenna direction.

 

March 25th 2010

Finaly, 8Q7QQ at 17:46 reply to our first call on 1296 MHz, -22/O as JT initial #60 and new DXCC. Thanks for activation this DXXC!

 

March 24th 2010

Guys at Maldives Islands were not active on 1296 MHz today. Hopefuly they will be QRV tomorrow. Only CW test with Zdenek OK1DFC. Sun noise 16.3 dB (SF84), G/CS 7.2 dB - all with linear polarization feed.

 

March 23rd 2010

We wait if Dan and others from 8Q7QQ starts on 1296 MHz, no success today. Tonda made three JT65 QSOs including one with Jan PA0PLY as JT #59 and only one CW QSO with Hans OZ6OL.

 

March 20th 2010

EUROPEAN EME CONTEST 2010 on 3.4 GHz

We were active on 3.4 GHz during both days of EUROPEAN EME CONTEST 2010. We finished with 19 QSOs (more than in autumn tropo contest). The only station we heard but did not work in contest was Ned LZ1DX. S57NML gives us new DXCC #19 and four new initials - OK1DFC, K2UYH, S57NML and WD5AGO close our 9 cm initials at #32. Thanks all for really nice weekend!

 

March 19th 2010

Tonda installed new 3-collar choke on our feeder as preparation for weekend 3.4 GHz contest. He made it about a week ago. He started with 2.8 kg aluminum platen and after few hours of lathe work - here we are! It is 3 ring OM6AA design recalculated to 9 cm.
3.4GHz_choke_1.jpg

Ground/Cold Sky noise raises from 3.6 dB to slightly more that 5 dB. Well done Tonda!

After some test with choke position in the focal point, Tonda would like to make some QSOs. He worked Ned LZ1DX O/O. Ned signal was weak but stable, nice QSO. Then Tonda QSOed Michel HB9JAW 559/449 as the first HB9-OK on 9 cm and our #28.

Tonda wouldn't like to call it a day, so he change the feed for 70 cm and wait for KP4. Suddenly strong local signals appeared. It was KP4AO, signal strength 599. We worked them 599/599 as the first KP4-OK QSO on 70 cm and our #373. Thanks guys for activating this monster after a long time.

Great day.

 


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