LU5DX

Amateur Radio, HF propagation and other stuff

QSY to Solar Monitor

Saturday, March 31, 2007

2007 CQ WW WPX SSB @ LT1F M/2


We just had a great time during last WPX SSB contest. We were trying to put together a Multi Multi operation, but our friends from LP1H had decided to test LU5HM's station in the Multi Single class. Lucas also invited Roberto LU2FA, the owner of LR2F, but Roberto had also organised a Multi Single from LR2F, with LU6ETB, LW7DX, LU5FF and LU1FZR. Roberto is continually improving his station and has already achieved a great performance.The LT1F team for this contest included: Karl LU1FKR (the owner and driving power of LT1F), Lucas LU1FAM, Fabian LU1AEE,Juan Pablo LU4DX, Diego LU8ADX and myself. Everything was in place for the contest. LU1AEE and I tested the station during ARRL DX SSB, and there were no issues, except for the 20 M ant not rotating 360ยบ. On Friday I woke up early around 4 AM, to go to LU8ADX's where we were to meet LU1AEE. From there were traveled to LT1F bycar, it is a 3 hour trip. When we arrived in LT1F, LU1FKR was there working as usual. We unpacked everything including LU8ADX's Ameritron AL 1200. Carlos prepared dinner for us. A great BBQ! We spent a long time talking about our hobby, future improvements to the antenna farm, etc. etc. Around 4 PM, LU4DX arrived in. Juan Pablo carried his IC 775 with Inrad roofing filters for the occasion. Carlos, started to hook up the coax stubs at the output of the Six Pack. Each stub is located at an electrical 1/4 of wave of the reject freq away from the amps.
All the photos available at: http://picasaweb.google.com/lu5dx.cw

I set up the network and N1MM was ready to go. We had positioned the two stations side by side so the ops could reach the antenna switches and rotor control boxes easily. Although the stations were very close spaced and sharing antennas through the Array Solution Six Pack, there were no inter- station interference at all. We even did not connect the RX bandpass filters, with only a couple of exceptions during the weekend, and not because there was QRM, but just in case. LU1FKR also set up an Icom IC 765 for spotting purposes, connected to a Log Periodic. Mainly to check for 10 m openings.We had no cluster this time, so the only way to know when 10 opened was to listen to the band. Around 6 pm, Lucas LU1FAM, arrived and the whole crew was there.Prior to the contest, we talked a little bit about propagation and decided that 15 and 20 would be good options to start the contest. Indeed it was the right choice as we ended the first hour with almost 400 Qs.


Then things started to slow down as we moved towards the low bands. 20 M remained open for quiet a long time. 40 mts was very tough this time. You know, March Equinox is not a good time for 40/80 mts from LU. May for example, is much better. So we spent most of the night on 20 and 40. 80 was very nosy, and with week signals, at least in the 2 el wire array. We decided to take that array down, cause we were never satisfied with its performance. The array was built in the previous years. It was a 2 el driven broadside array, supposed to have the radiation pattern favored to North, but well. During the previous days Karl and I decided to install a 2 el full size Delta Loop for 80 mts, what we did on Saturday. I designedthe antenna using MMana-GAL and Nec for MMana. The whole installation process took about 10 hours from 10 AM to 8 PM. We really learnt a lot doing this job. But most important that when it comes to antenna performance, there is no room for guessing at all. The antenna performed extremely well. We made 41 Qs mostly with USA stations. Everybody copied our Callsign at the first try and gave us very good signal reports, including a 10 Db over S9! As everybody was loud on the delta loop, there was no need to use the Beverage for RX. We tested the delta loop AM during Sunday.Going back to Saturday. When 15 opened everything seemed to be OK, although signals were very week, everybody was so excitedwith the contest, and LU1FKR and I building the Delta Loop, that we forgot to lunch!!!!!!!!!!!Ten meter opened quiet well, including a little but solid EU opening. The first day ended up with 3300 Qs in the log.So we thought that we could eventually achieve some 5500 by the end of the contest, but after 00 Z on Sunday, things startedto change. Rate went down and down during the night. We stayed on 20 and 40 most of the night with the exception of aboutan hour on 80 to test the new antenna. LU4DX and LU5DX on 20 and 40 respectively stayed up all night transmitting long endless CQs to catch a few takers. As I had not slept since 4 am on Friday, and having spent so much energy installing the Delta, Ireally felt tired. LU8ADX woke up at around 5 Am LU time and shifted positions with LU4DX, and later around 8 AM LU1AEEtook my place. I went to bed and requested LU1FKR to wake me up at noon to cook the GIANT PIZZA.

I woke up at 1215 LUT, and started the Pizza Ritual. Which ended at around 1530 LUT. Needless to say the operation stopfor a while so everybody could join the pizza party. LU1FKR achieved PIZZA MAN Honors this time! He was great in gettingthe fire ready to cook the pizza.About Sunday we can only say it was really slow!! 10 and 15 m never really opened. We hear several times LR2F running stationsat a good pace, but all the calling stations were dupes for us.The contest finished on 40/20 with a round of applause.
We all really want to thank everybody for the Qs. Congrats to the AN8A boys for a job well done. Also congrats to theOE4A boys for achieving such a great performance from their beautiful station. We really hope to work many of youduring WPX CW, this time a bigger delta loop and more Pizza!
73
LU1FKR, LU1FAM, LU1AEE, LU4DX, LU5DX, LU8ADX



CQWW WPX Contest, SSB
Call: LT1F
Operator(s): LU1AEE, LU1FAM, LU1FKR, LU4DX, LU5DX, LU8ADXStation: LT1F
Class: M/2 HP
QTH: Rosario
Operating Time (hrs): 48
Summary:
Band QSOs
------------
160: 0
80: 41
40: 509
20: 1398
15: 2169
10: 764
------------
Total: 4881 Prefixes = 1191 Total Score = 18,558,162
Club: LUCG
Comments:
Rigs: IC-775DSP (LU1FKR), IC-765 (LU1FKR), IC-775DSP with Inrad roffing filters(LU4DX)Amps: Drake L4B (LU1FKR), Ameritron AL-1200 @ 1000 W (LU8ADX).Antennas: 28: 6/6 el yagi (not in stack)21: 6/6 el yagi (stackable)14: 5 el yagi / 4 el yagi (not in stack)7 : 3 el yagi KLM type3.5: 2 el Delta loop aimed at USA (LU1FKR/LU5DX)RX: 600 Ft bev straight North
Coaxial Stubs at the output of the array soulition 6 pack.Logging Soft: N1MM - 2 Pc networked via ethernet.

Thursday, March 08, 2007

2007 - ARRL DX SSB @ LT1F


I actually never planned to enter this contest! But, as we all are getting ready for next WPX SSB, LU1AEE, LU1FKR and I decided that the ARRL test, would be a great opportunity to double check everything and leave things in place for WPX.So on Thursday before the contest, after a couple of quick calls we were ready for the contest.I really must thank Karl, LU1FKR for his never ending support and hospitality. He is of those persons that you can only meet through amateur radio!! He never refuses when there is a chance to enter a contest from LT1F, instead he feels really happywhen we visit the antenna farm.



LU1AEE and I departed at 18Z from LU1AEE's in Buenos Aires, three hours later we were arriving in LT1F antenna farm in Rosario.Ariel, a neighbor who lives close to the station, gave us the keys. A few minutes later, LU1FKR joined us. He carried the rigs IC 775DSP + IC765 and the Drake L4B.You know, the station was not used very much during last year. Lucas LU1FAM, entered a couple contests. But there was no big Multi Multi for CQ WW. Anyway, everything seemed to be in place. Karl, started to hook up everything. There was only one minor repair to be done in the control cable of the 40m antenna rotor. Ariel and I fixed the cable, and that was all.We pointed all the yagis to USA, and we were ready to start the contest. I wanted to record audio, so we hooked a splitter to the phone jack in the 775, and from there we run a cable to LU1FKR's notebook and used total recorder to do the job.I started the contest on 20, because 15 sounded really punk.



As I have no experience in SSB contests, I really felt very nervous during the first hour. Anyway 296 Qs were in the log, at 0100 we shifted positions with LU1AEE, cause I needed a rest after what for me was like a dream come trhough. I never thought that I was able to make more than 200 Qs/Hour on SSB!Anyway, now I believe that more than 360/400 Qs/Hour are possible on SSB, cause there were lots of CQs during the big run. So, maybe from the Caribbean, with a continuous pile up you can do that.Conditions were really bad, we just had a few hours over the 200 Qs mark. Ten meters never really opened on Saturday. We only managed to work 136 Qs and 17 states the first day, and with very weak signals and deep QSB. Lots of stateside stations that did not know what the contest was about, so had to explain them what it was. One funny thing happened to me on sunday afternoon on ten. I was running stations on 28430. I was there for about an hour then I started hearing two guys rag chewing on my freq. The pile up was consistent so I did not want to give up and QSY.After a while, one of them who said to be N0XK, started making funny jokes about contesting, I asked him to QSY, and he refused, cause he was talking to his neighbor. I told him that I had been using that freq for over an hour, which he did not believe, anyway he left after complaining a bit and calling me liar for a while. I believe he did not have a clue about solar cycle, propagation, QSB and all that stuff! 40 M played well the firs night. There was a big thunderstorm but the beverage was of great help. Same thing on 80. Anyway we are building a new antenna for that band.No 160, but I'm sure we will build some new antenna for top band. Lots of stations requested us to QSY to 1.8, I reallyapologize guys, we will solve the lack of a good 160 antenna soon.Second day, was much better on ten, we finally worked 699 stations on that band.
More Pics at : LU5DX´s Photos






We ended up the contest with the following score:

ARRL INTERNATIONAL DX CONTEST -- 2007
Call: LT1F
Category: Multi Single
Power: High Power
Band: All Band
Mode: SSB
Country: Argentina
BAND QSO QSO PTS STATES/PROV
160...... 0
80 ....... 84......252........32
40........642....1926.......55
20.......1033...3099........56
15.......1768...5304........59
10........699....2097........43
-----------------------------------
Totals 4226 12678 245 = 3,106,110
All reports sent were 59(9), unless otherwise noted.
Operator List: LU1AEE, LU1FKR, LU5DX
Equipment Description: IC 775 DSP + L4B @ 1kw.
Antennas 6/6 for 10m, 6/6 for 15m, 5el for 20, 3 el for 40, 2 el wire array for 3.5
RX ant: Beverage straight north.
Club Affiliation: LUCG


Saturday, February 24, 2007

2007 ARRL DX CW @ LU4DX - Part I

2007 ARRL DX CW - Part I 2007 ARRL DX CW - Part II 2007 ARRL DX CW - Part III



From 2007 ARRL DX ...



ARRL DX Contest, CW

Call: LU4DX
Operator(s): LU5DX
Station: LU4DX

Class: SOAB(A) HP
QTH: CHIVILCOY
Operating Time (hrs): 43.5

Summary:
Band QSOs Mults
-------------------
160:
80: 99 33
40: 803 57
20: 1118 58
15: 965 58
10: 569 52
-------------------
Total: 3554 258 Total Score = 2,750,796

Club: LUCG

Comments:

Rig: Icom IC 775 DSP - Amp: Alpha 78 - Software: N1MM obviously!

Antennas: 6 el tribander yagi, 2 el yagi for 7 Mhz, double bazooka for 3.5. No antenna for top band.

Deep Heart Thanks to Juan Pablo, LU4DX and Jorge LW4EU, for their friendship and
neverending support!!
Also Big thanks to my father LU6EBY and Juan Pablo´s family.
Thanks everybody for the Qs!

Low point: falling asleep for 4 hours during the second night with 80 and 40 wide open! Some 250 Qs and 20 mults lost.

HPE CU next year!

Martin, LU5DX at LU4DX

From 2007 ARRL DX ...


ARRL DX CW - 2007-02-17 0000Z to 2007-02-19 0000Z - 3641 QSOs
LU4DX Max Rates:

2007-02-17 1639Z - 7,0 per minute (1 minute(s)), 420 per hour by LU4DX
2007-02-17 0033Z - 4,4 per minute (10 minute(s)), 264 per hour by LU4DX
2007-02-17 0100Z - 3,6 per minute (60 minute(s)), 215 per hour by LU4DX


ARRL DX CW - 2007-02-17 0000Z to 2007-02-19 0000Z - 3641 QSOs
LU4DX - Off Times >= 30 Minutes

02/18/07 05:49Z - 02/18/07 09:34Z 225 mins
02/18/07 10:44Z - 02/18/07 11:29Z 45 mins

Total Time Off 4,50 hours
Total Time On 43,50 hours


Date Total LU4DX Running Total
2007-02-17 2236 2236 2236
2007-02-18 1318 1318 3554
Total 3554 3554



2007 ARRL DX CW - Part I
2007 ARRL DX CW - Part II 2007 ARRL DX CW - Part III


2007 ARRL DX CW @ LU4DX - Part II

2007 ARRL DX CW - Part I 2007 ARRL DX CW - Part II 2007 ARRL DX CW - Part III

From 2007 ARRL DX ...


ARRL DX CW - 2007-02-17 0000Z to 2007-02-19 0000Z - 3641 QSOs

LU4DX Runs >10 QSOs:



2007-02-17 0000 - 0158Z, 14018 kHz, 360 Qs, 182,9/hr LU4DX

2007-02-17 0159 - 0211Z, 14019 kHz, 17 Qs, 85,6/hr LU4DX

2007-02-17 0219 - 0715Z, 7012 kHz, 452 Qs, 91,6/hr LU4DX

2007-02-17 0739 - 0824Z, 3521 kHz, 39 Qs, 52,1/hr LU4DX

2007-02-17 0908 - 0928Z, 3521 kHz, 11 Qs, 32,3/hr LU4DX

2007-02-17 0944 - 1031Z, 7019 kHz, 36 Qs, 46,4/hr LU4DX



2007-02-17 1242 - 1327Z, 21015 kHz, 60 Qs, 78,4/hr LU4DX

2007-02-17 1330 - 1337Z, 21015 kHz, 11 Qs, 94,3/hr LU4DX

2007-02-17 1339 - 1508Z, 21015 kHz, 122 Qs, 82,4/hr LU4DX

2007-02-17 1517 - 1551Z, 21032 kHz, 73 Qs, 126,7/hr LU4DX

2007-02-17 1553 - 1731Z, 28011 kHz, 187 Qs, 114,3/hr LU4DX

2007-02-17 1733 - 1752Z, 28020 kHz, 36 Qs, 114,2/hr LU4DX

2007-02-17 1755 - 1815Z, 28011 kHz, 24 Qs, 72,2/hr LU4DX

2007-02-17 1816 - 1940Z, 21026 kHz, 213 Qs, 152,2/hr LU4DX

2007-02-17 1944 - 2100Z, 21024 kHz, 161 Qs, 127,2/hr LU4DX

2007-02-17 2109 - 2124Z, 14012 kHz, 37 Qs, 140,7/hr LU4DX

2007-02-17 2130 - 0001Z, 14046 kHz, 376 Qs, 149,7/hr LU4DX

2007-02-18 0014 - 0108Z, 14040 kHz, 89 Qs, 99,8/hr LU4DX

2007-02-18 0152 - 0334Z, 7017 kHz, 160 Qs, 94,2/hr LU4DX

2007-02-18 0343 - 0447Z, 7016 kHz, 74 Qs, 69,1/hr LU4DX

2007-02-18 0512 - 0548Z, 7015 kHz, 57 Qs, 94,2/hr LU4DX

2007-02-18 0934 - 0949Z, 3518 kHz, 23 Qs, 88,0/hr LU4DX

2007-02-18 1353 - 1552Z, 21044 kHz, 98 Qs, 49,4/hr LU4DX

2007-02-18 1555 - 1604Z, 21020 kHz, 11 Qs, 66,8/hr LU4DX

2007-02-18 1652 - 1734Z, 21034 kHz, 29 Qs, 41,3/hr LU4DX

2007-02-18 1740 - 1817Z, 21034 kHz, 61 Qs, 99,6/hr LU4DX

2007-02-18 1827 - 2039Z, 28019 kHz, 331 Qs, 150,7/hr LU4DX

2007-02-18 2041 - 2144Z, 21034 kHz, 115 Qs, 110,7/hr LU4DX

2007-02-18 2202Z - 23:59, 14017 kHz, 226 Qs, 115,6/hr



Date Hour Total LU4DX Running Total

2007-02-17 0 211 211 211

2007-02-17 1 144 144 355

2007-02-17 2 106 106 461

2007-02-17 3 116 116 577

2007-02-17 4 110 110 687

2007-02-17 5 59 59 746

2007-02-17 6 54 54 800

2007-02-17 7 39 39 839

2007-02-17 8 43 43 882

2007-02-17 9 34 34 916

2007-02-17 10 24 24 940

2007-02-17 11 9 9 949

2007-02-17 12 34 34 983

2007-02-17 13 72 72 1055

2007-02-17 14 78 78 1133

2007-02-17 15 93 93 1226

2007-02-17 16 125 125 1351

2007-02-17 17 98 98 1449

2007-02-17 18 130 130 1579

2007-02-17 19 130 130 1709

2007-02-17 20 119 119 1828

2007-02-17 21 122 122 1950

2007-02-17 22 154 154 2104

2007-02-17 23 132 132 2236

2007-02-18 0 74 74 2310

2007-02-18 1 51 51 2361

2007-02-18 2 99 99 2460

2007-02-18 3 56 56 2516

2007-02-18 4 53 53 2569

2007-02-18 5 61 61 2630

2007-02-18 9 27 27 2657

2007-02-18 10 6 6 2663

2007-02-18 11 8 8 2671

2007-02-18 12 8 8 2679

2007-02-18 13 29 29 2708

2007-02-18 14 51 51 2759

2007-02-18 15 36 36 2795

2007-02-18 16 20 20 2815

2007-02-18 17 58 58 2873

2007-02-18 18 105 105 2978

2007-02-18 19 170 170 3148

2007-02-18 20 112 112 3260

2007-02-18 21 77 77 3337

2007-02-18 22 115 115 3452

2007-02-18 23 102 102 3554

Total All Hours 3554 3554



2007 ARRL DX CW - Part I
2007 ARRL DX CW - Part II 2007 ARRL DX CW - Part III



2007 ARRL DX CW @ LU4DX - PART III

2007 ARRL DX CW - Part I 2007 ARRL DX CW - Part II 2007 ARRL DX CW - Part III


From 2007 ARRL DX ...

Sec Total LU4DX


AB1616
AL6464
AR3232
AZ102102
BC3636
CA420420
CO6464
CT8181
DC55
DE1717
FL182182
GA5252
IA3131
ID1212
IL143143
IN3434
KS2222
KY99
LA2828
MA122122
MD9595
ME1616
MI7777
MN110110
MO3636
MS2121
MT1616
NB33
NC9292
ND22
NE1515
NF66
NH7272
NJ125125
NM3737
NS2727
NV1212
NY133133
OH124124
OK2727
ON8585
OR5353
PA187187
PEI99
QC1414
RI1313
SC2323
SD1010
SK1414
TN7979
TX165165
UT3131
VA110110
VT2222
WA125125
WI6666
WV1818
WY1212
Total35543554



2007 ARRL DX CW - Part I
2007 ARRL DX CW - Part II 2007 ARRL DX CW - Part III


Tuesday, February 06, 2007

2007 ARRL INT'L from LU4DX's

I will enter next ARRL INT'L DX CW contest from LU4DX's. I was invited by Tim, LW9EOC to join him but it will not be possible, because of job issues on my side. Thanks to the kind help from Juan Pablo LU4DX, and Jorge LW4EU, I will be able to enter the contest SOAB Assited,

From 2006 CQ WW DX...


Juan Pablo's station is located in Chivilcoy, 65 miles due west from my home town Lujan.

I have entered several other contests before from LU4DX's.

2003 CQ WW DX CW - SOSB 28 A - 1st. place world -SA Record
2005 CQ WW DX CW - SOSB 21 A - 1st. place world -World Record.
2006 CQ WW DX CW - SOAB A -1R- 3rd. place world - Claimed Score.


From 2006 CQ WW DX...