Dominic Smith ⇓

CQ WW SSB 2006

I participated in the CQWW DX SSB Contest from the Cambridge University Wireless Society, using our contest callsign M4A.
This page is archived. It was last modified in April 2008 and it will probably not be updated.

A short audio clip (1m37s) of me running on 20m at about 1220UTC on Sunday can be heard here (RealAudio format), or you can watch a short video of our operation.

Download the propagation forecast document that we used for planning the contest entry.

Result

We came 3rd in England in the Multi-Single category, behind G5W (6,020,739 points) and G6PZ (4,165,560 points). With 2,267,870 points, we lost about 11% of our claimed score in log checking.

Summary

Contest         : CQ World Wide DX ContestCallsign        : M4AMode            : PHONECategory        : Multi Operator - Single Transmitter (MS)Overlay         : ---Band(s)         : All bands (AB)Class           : High Power (HP)Zone/State/...  : 14Locator         : JO02AFOperating time  : 41h13 BAND   QSO DUP DXC  CQ  POINTS   AVG --------------------------------------  160    73   0  40   6      78  1.07    80   281   0  61  12     331  1.18    40   396   0  85  23     797  2.01    20   980   8 118  35    1845  1.88    15   591   0 113  31    1004  1.70    10   189   2  53  16     247  1.31 --------------------------------------TOTAL  2510  10 470 123    4302  1.71 ======================================       TOTAL SCORE : 2 551 086

Operators: DL5RB, G3ZAY, G7VJR, KC5WNG, M0BLF, M0DEG, M0FFX, M0HSW, M0TDG, OZ7AGL
Soapbox: A very fun contest entry with a large team made up almost entirely of current students or recent graduates of Cambridge University. We had our fair share of problems, such as melting two baluns during the weekend, which left us with 80m for much of Sunday evening, and we also had only one 14/21/28MHz antenna, so the mult station could not use these bands while the run station was on one of them. Nevertheless, we improved on our score from last year and felt that conditions weren't as bad as they might have been. More information at http://www.domsmith.co.uk/contests/cqww06/

Video

Set-up

Run station: FT-1000MP, Quadra, Dunestar filters.
Mult station: FT-2000, TL-922, Dunestar filters.

Antennas: 160m dipole, 80m phased array, 80m dipole, 40m four-square, 40m rotating dipole, Stepp-IR.

The antennas were shared between the run and mult stations. This means, of course, that while the run station was on 20m, 15m or 10m, we could not use the mult station on any other of these bands (except if we forced the 40m rotating dipole onto 21MHz).

Logging was with Win-Test, which worked very well except for a small bug in the communication with the FT-2000 (hardly surprising given how new the rig is).

Highs and lows

Good points were beating last year's score and taking the opportunity to introduce many students to contesting for the first time.

Low points included melting two baluns, which meant that we couldn't use 80m for the last four hours on Sunday; getting the mobile tower stuck and not having sufficient antennas for a full mult station.

Band breakdown

(QSO totals below include dupes)

BandQSO%Time%QSO/min.
1607337940.924
8028111273131.030
4039616409190.968
2098839855391.160
1559123411191.440
10191814971.280
Total252010021761000.877

Distribution

There were 1970 unique calls in the log, of which 2 were worked on all bands, 8 on five bands, 24 on four bands and 82 on three bands.

Rates

There were 76 individual minutes during which we had a rate of four QSOs/minute or higher. On average, we made about 1.02 QSOs/minute during the 41h13min on-time.

The hourly contacts per hour rates were:

Date  	UTC	Rate28/10 	0000	59 	0100	83	0200 	122	0300	66	0400	30	0500	18	0600	29	0700	40	0800	94	0900	55	1000	57	1100	55	1200	118	1300	72	1400	85	1500	124	1600	74	1700	94	1800	99	1900	32	2000	28	2100	30	2200	54	2300	2629/10	0000	10	0100	8	0200	15	0300	16	0400	9	0500	23	0600	12	0700	24	0800	31	0900	61	1000	101	1100	85	1200	95	1300	127	1400	35	1500	74	1600	30	1700	34	1800	57	1900	63	2000	21	2100	15	2200	12	2300	18

Thanks to everyone who contacted us!

Statistics on this page created by SH5 - rescab.nm.ru
SH5 v1.18 (25 June 2006)

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I am Dominic Smith and this is my personal website.
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