OH0/DL1YMK - EME DX pedition

October 2009


Triple X / DL1YMK

 

From 03.10.2009 to 11.10.2009 the M & M – team was out again for a short ‘hit and run’ – DXpedition, just in between May’s MI-event and more to come in 2010. The team was active as OH0/DL1YMK from Käringsund on Aland Island in JP90sf. Neither the callsign, nor the destination was disclosed to anybody before the DXpedition, initiated by a discussion earlier this year about  real random contacts in CW moon bounce without any information known before the actual QSO ( no ‘Deap Search’ information available). 

This time four bands (70, 23, 13, and 9 cm) were activated, the equipment for 70, 13 and 9 cm being modified significantly. The feed system for 70 cm was changed into a short backfire loop feed, switch able in H/V, further a new HPA for 13 cm and a new LDMOS-HPA for 9 cm were brought on air for the first time.

There were no skeds made before setting out for OH0, only for 9 cm, which up to now was our weakest band, sked time slots were given, but also the callsign was not revealed to any of our partners, thus only ensuring some activity on this rather exotic moon bounce band at a given date.

For the first time impressing echoes could be heard on 9 cm and on 13 cm own sideband echoes could be copied without any problem – both bands experienced a significant improvement, which can be seen from the number of QSO´s completed on that bands and the reports exchanged. The most problematic band now seems to be 70 cm, where the antenna gain of the 4.1 m stressed dish surely is marginal – giving room for further improvement. 

All rig worked flawlessly, especially the new HPA’s were absolutely unproblematic, also the new 28 Volt 2000W SPS unit was just switched on and then forgotten – only when keying on 9 and 13 cm the lights of our kitchen shack faded out significantly, hi!

This random DXpedition was unexpectedly successful, so our sincere thanks goes out to the EME-community for giving us once again their attention and chasing an unknown callsign off the rock. Also, it was very much appreciated that the mystery triple X - callsign was not disclosed during the duration of the DXpedition by those stations, who already had worked us, thus keeping up the full challenge and fun for all fellow-EMEer's.

 

BIG THANKS to all for this random CW fun, cu soon again off the rock from ????

 

73 / 88 de M & M


OH0/DL1YMK Log 432 MHz
Date Time UTC Call TX rprt RX rprt QSO # initial #
6.10.2009 2030 VK3UM O 559 1 1
2103 DL9KR 559 O 2 2
2130 UA3PTW M RO 3 3
2135 OZ4MM 559 RO 4 4
2145 I1NDP O RO 5 5
10.10.2009 0040 HB9Q 559 559 6 6
0107 DL7APV 559 549 7 7
0118 G3LTF O RO 8 8
0124 DL9KR 559 559 9  
0144 UA3PTW O RO/549 10  
0159 SP6JLW RO O 11 9
0326 OK1KIR O RO 12 10
0332 K1RQG 559 569 13 11
0339 OK1DFC O RO 14 12
0427 OZ4MM 559 549 15  
0455 DF3RU RO O 16 13
0515 K1JT O RO 17 14
0519 K2UYH O RO 17  
OH0/DL1YMK Log 1296 MHz
Date Time UTC Call TX rprt RX rprt QSO # initial #
3.10.2009 1804 HB9BBD 569 579 1 1
1818 SV1BTR 559 529 2 2
1826 SP6JLW 559 559 3 3
1847 VK3UM 559 559 4 4
1852 LX1DB 569 569 5 5
1859 F2TU 569 549 6 6
1907 OK1KIR 549 549 7 7
1912 PA3CSG 559 539 8 8
1924 JA4BLC 549 539 9 9
1930 SM2CEW 559 549 10 10
1940 JA6AHB 559 549 11 11
1952 OZ4MM 569 569 12 12
2001 LX1DB 55 53 13  
2029 OE9ERC 579 579 14 13
2027 G3LTF 559 559 15 14
2045 SP7DCS 549 549 16 15
2050 DF3RU 559 559 17 16
2102 SM3AKW 559 559 18 17
2110 ES5PC 559 549 19 18
2125 PA0BAT 539 539 20 19
2138 OZ6OL 549 549 21 20
2150 UA3PTW O RO 22 21
2230 G4RGK RO O 23 22
2237 DJ9YW 549 549 24 23
2248 K1RQG 579 579 25 24
4.10.2009 0019 K5GW 569 569 26 25
0051 G4CCH 559 569 27 26
0101 ES6RQ 549 549 28 27
0116 W7JM 559 559 29 28
0138 K5SO 569 569 30 29
0148 N0OY 549 549 31 30
0229 W7BBM 559 559 32 31
0245 W4OP O RO 33 32
0255 VE6TA 559 559 34 33
9.10.2009 0519 G4DZU RO O 35 34
0528 K2UYH 559 559 36 35
0540 G4DDK O RO 37 36
0550 WA6PY 559 559 38 37
0559 K2DH 559 559 39 38
0610 SV3AAF 559 549 40 39
0647 ON4BCB 569 559 41 40
0656 LZ1DX 539 559 42 41
0806 OE5JFL 539 549 44 42
0835 IK3COJ 539 O 45 43
10.10.2009 0727 DL0SHF 579 559 46 44
0740 LA9NEA 549 549 47 45
0815 IQ4DF 559 529 50 46
0843 OK1DFC 559 569 51 47
0903 IZ1BPN 539 539 52 48
0909 W6YX 539 559 53 49
0920 SM6FHZ 539 549 54 50
0939 RA3AQ O RO 55 51
0945 OH2DG 539 O 56 52
11.10.2009 0145 HB9Q 559 559 59 53
0150 DL4MEA 549 549 60 54
0210 LZ2US 549 549 62 55
0242 OK3RM O RO 66 56
0425 PY2BS RO O, JT 69 57
0530 HB9SV 579 569 72 58
0605 UT5JCW 549 559 75 59
0646 K5JL 569 579 81 60
0658 K8EB 559 559 82 61
0749 RD3YA O RO 85 62
0824 W5LUA 559 559 86 63
0830 IK2MMB 559 559 87 64
0838 WW2R RO O 88 65
0912 IW2FZR 549 559 92 66
0924 SM3LBN O RO 93 67
OH0/DL1YMK Log 2320 MHz
Date Time UTC Call TX rprt RX rprt QSO # initial #
4.10.2009 1858 ES5PC 559 549 1 1
1908 SP6OPN 559 559 2 2
1916 OK1CA 569 559 3 3
1921 OK1KIR 559 549 4 4
1929 OZ4MM 569 559 5 5
1937 LX1DB 569 569 6 6
1942 G4CCH 559 559 7 7
1952 HB9Q 569 559 8 8
1959 F2TU 569 559 9 9
2003 G3LTF 559 559 10 10
2013 SM2CEW 549 559 11 11
2021 DL4MEA 549 559 12 12
2033 LZ1DX 539 559 13 13
2047 PA0BAT 539 539 14 14
2112 DF9QX 539 559 15 15
2124 LX1DB 55 55 16 ssb
2130 F2TU 54 53 17 ssb
2155 G3LQR 539 539 18 16
2213 SM3AKW 539 559 19 17
2328 OE9ERC 599 589 20 18
2338 OE9ERC 56 55 21 ssb
5.10.2009 0203 K5GW 559 559 22 19
0213 WW2R O RO 23 20
0228 WD5AGO O RO 24 21
0240 W5LUA 559 559 25 22
0319 VE6TA 559 449 26 23
7.10.2009 2300 G4DDK O RO 27 24
2338 SV3AAF 549 549 28 25
8.10.2009 0148 PY2BS RO O, JT 29 26
0517 WA6PY 549 559 30 27
OH0/DL1YMK Log 3400 MHz
Date Time UTC Call TX rprt RX rprt QSO # initial #
5.10.2009 2045 OK1CA O RO 1 1
2055 LX1DB O RO 2 2
2107 G3LTF O RO 3 3
2121 F2TU O RO 4 4
2140 PA0BAT O RO 5 5
2220 OK1KIR O RO 6 6
6.10.2009 0243 W5LUA O RO 7 7
0258 OE9ERC 559 559 8 8
70 cm: 16 QSO's at 13 #
23 cm: 96 QSO's at 67 #
13 cm: 30 QSO's at 27 #
9 cm: 8 QSO's at 8 #
Total: 150 QSO's, 115 initials on 4 bands

 

Hello lunatics,
first a big thank you to all fellow-EMEers,  who worked us and did not disclose the call during our stay on Aland, in order not to spoil the fun for others, who had to decode the call for themselves. Interesting enough some stations thought until this morning we were on OJ0, hi. Perhaps this might be the destination for a new DXpedition?? Well, we think we had enough storms with this one…next will be calmer, hopefully. Yes, we are on Aland, OH0, a group of 4500 islands with only 28000 residents, located 2 hours by ferry in front of the Swedish East coast, but belonging to Finland. It is a really nice, picturesque place – if there is no storm, which seems to be very common during autumn and winter. Our holiday home was located in JP90sf at the West coast of one of the main islands near Eckerö.
The idea, not to disclose where we are, was born in the European moon reflector discussing the question, what a real random QSO is all about. OK, 140 of our 150 QSO´s, which we made in the last 8 days on 4 bands were “really” random for both sides, whereas we had sometimes the more difficult part, as we had to decode many, many different stations, often in huge pile ups – but CW is king! 23 and 13 cm were really fun and very easy. We heard continuously our own echoes and were copied by many stations, so the optimi sations we made was worth the effort during the months after MI. The 9 cm - band is still difficult as our signal still is not as stable in frequency as it should be. The weakest band now seems to be 70 cm, here is room to improve. 
During this morning we were again on 23 cm and worked several stations dupe for the contest and as initials: HB9Q, DL4MEA, LZ2US, OK3RM, PY2BS (JT), HB9SV, UT5JCW, K5JL, K8EB, RD3YA, W5LUA, IK2MMB, WW2R, IW2FZR, SM3LBN.
In total we made 96 qso´s  on 23 cm  and worked 67 initials in 32 DXCC´s.
Now we are awfully tired, because we were out for sightseeing during daytime and EME during the dark, but there was not enough time for sleeping – we urgently need holidays, hi
The dish was knocked down in the afternoon, the stuff is packed into the car (difficult enough!), and tomorrow morning we are on our way back home.
A big thanks to all, who shared this experience with us, M & M-team hopes you had the same fun we had during the past week. For those we could not dig out of the mud: past a DXpedition is before a DXpedition…CU from ????
 
73/88 de M&M
Hello lunatics,
this night we were at first qrv on 70 cm, than on 23 cm. 70 cm was a hard piece of work, because it is now obviously our weakest band after we optimised the 3 other bands. In contrast to 23, 13 and 9 cm, we don’t hear our own echoes, so we have to find the exact position of moon with the signals of other stations and this was the real problem, because of the broad beamwidth of the dish on 70 cm. It was frustrating to hear stations calling, but to be unable to get the calls out of the “mud” with a high level of librations fading, especially if 2 stations were calling at the same time. So we worked this night additionally HB9Q, DL7APV, G3LTF, DL9KR, UA3PTW, SP6JLW, OK1KIR, K1RQG, OZ4MM, DF3RU, K1JT/K2UYH before changing the feed to 23 cm. Sorry for those, who called, but were not heard! Still not really certain, if the new H/V-switchable short backfire loop feed is advantageous in the stressed dish…some reports were encouraging, th ough. Will have to work on improvement of LNA, the current one is at 0.45 dB NF…well, the winter is long and every tenth of a dB counts.
23 cm was again very easy, so we worked in the remaining time of our limited moon window: DL0SHF, LA9NEA, SP6JLW, DF3RU, IQ4DF, OK1DFC, IZ1BPN, W6YX, SM6FHZ, RA3AQ, OH2DG.  Tomorrow it will be the last chance on 23 cm to work XXX/DL1YMK – nearly 100 stations, who worked us on the 4 bands already know, that this is a very interesting DXCC! We will start  Sunday, around 0100 UT and end around 11 UT to knock down the dish and stuff all bits and pieces in the car.
 
Vy 73 de M&M

Sunset in Aland

Landscape of Aland

Installing 23cm feed

Work place with 13cm units and new SSPA

Position of dish during QSO with VK3UM

M&M team front of dish.

M&M team at the station