Currently viewing the tag: "Rhombics"

Robert, S53R has been active from Khartoum, Sudan.  

I had a rare SSB contact with him on 20 meters moments before he shut down.

As you can hear the competion was quite intense.

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Later I had a QSO with him on 10m CW, but no recording was made.  

This is our QSO on 12m CW

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I have been chasing the S21YZ DXpedition across the bands.

Conditions are poor and the competition is intense.

QSO on 17m:

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QSO on 20m:

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QSO on 30m:

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I have now begun my quest for the complete WAZ – all 200 zones in earnest.

This morning 4A4A in Socorro Island, Revillagigedo, Zone 6, had workable signals on 40m.

It only took a few calls with my large USA Rhombic to put them in my log.

When a DXpedition has a clear pattern of of working the pile up, it makes it much easier to work them.

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As I chase the Sable Island CY0  DXpedition across the bands, a perfect arctic storm rages outside.

 TFM1976

The view from my Shack.

 TFM1979
The view from my Shack.

My QSO with K8LEE/CY0 on 10MHz :  

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My QSO with N0TG/CY0  on 14MHz:    

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My QSO with N1SNB/CY0 on 18MHz:

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My QSO with K8LEE/CY0 on 7MHz :

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He was calling for JA/VK/ZL with no takers, so I dropped my call and worked him.  Very smooth if I may say so.   If only the Aurora would let up so I could hear and work them on 160 Meters…until now no trace of a signal whatsoever….

In between looking for the CY0 DXpedition, I worked a few DX stations.

My goal is to catch them on 160m, everything else is just icing on the cake.

Mike, VK6HD on 17 meters with an incredible signal, I believe the strongest signal I have ever heard from Australia – my rhombics rock !

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CO8LY in Cuba

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and 5X1NH in Uganda

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I purchased a 35mm film container off eBay several years ago. 

It turned out to contain an old presentation of the US Military of the way Rhombic Antennas work on yellowed 35mm film.

This contains all the information needed to design and construct Rhombic antennas.

I scanned the film and made this presentation which is hosted on Yudu.   

Click to view the full digital publication online
Read Rhombic Antennas
Online Publishing from YUDU

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Jouko, OH1RX who was on a Salmon fishing trip visited my area with his group and operated TF4X in the IARU contest.

Conditions were rather poor, but this was to be expected at this time of the year.

Antennas and equipment performed without incidents.

Jouko commented to the contest organizers:

“Great experience to work agn from ultima thule at Thors fantastic  station. Bands are never kind to the ops above 64N, but his time it was a real uphill. Nevertheless, I hope you enjoyed couple of low band mults from TF!

CUL agn de Jouko OH1RX”

It was an honour to have such an accomplished contester operate my station.

I hope to see OH1RX again perhaps for a serious effort one day.

OH1RX wrote about the contest on his web site.

OH1RXTF4X
 
OH1RXTF4X 1
 
OH1RXTF4X 2
 
OH1RXTF4X 4
OH1RXTF4X 4
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2009 CQWW CW Contest: 0000 UTC, November 28 through 2359 UTC, November 29.

Three operators arrived from Reykjavik to operate the contest.   Yngvi – TF3Y, Kiddi – TF3KX and Oddur – TF3OO along with a Sveinbjörn – a Gourmet Chef who had planned the feast for weeks.

Conditions were rather poor, not a single sun spot during the weekend made conditions on HF rather poor and in addition there was some Auroral activity affecting the lower bands.

Despite this 4525 contacts were made in 48 hours of operation.

You may listen to the activity from TF4X:

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The menu was fantastic.   On Friday we had Tom Ka soup with Halibut followed by Real-Vanilla ice cream and cake, on Saturday the menu was Pigeon breast,  Elk meat with carrots boiled in orange juice and Sunday we had icelandic mountain lamb fille, with baby tomatoes braised in olive oil and Maple Syrup garnished with fresh Timian.

The Arctic King awed us with the performance –  1270 QSOs were made on Top Band and this was only matched by 20M where 1306 QSOs were made using an array of Rhombic antennas.

summary

We used Win-Test contest logging software which performed flawlessly on 5 computers during the entire contest.

We used a feature of the software called Targets Tracking, which showed us real-time graphs on the screen of our progress compared to last year´s effort.   Right from the beginning things were going much better than last year and this was very inspiring throughout the 48 hours.

This graph shows the over-all difference on an hourly basis compared to the effort of 2008.

qsos-overall-difference

This graph shows the hourly over-all rates compared to 2008.   2008 in grey, 2009 in violet.

hourly difference

This picture shows the zones worked on all bands.

zones worked

The Icelandic record in the Multi/Single Category was set by TF3IRA in 1980 at the height of the Sun Spot Cycle.

That record stood at 2,169,760 points.  They made 3004 QSOs and they worked 85 zones and 231 countries to accomplish this.

We beat the 29 year old record handsomely as can be seen in the summary.

It is interesting to note that Yngvi, TF3Y and Kiddi, TF3KX were operators when both records were set.

Highlights of the operation was working a Pile-up of JA stations on 160 meters – this is the first time in history that JA/TF QSOs are made on Top Band during this contest.

KH6 (Hawaii) was worked on 80 meters for the fourth time in TF history that I am aware of.  Prior to this, only Boggi – TF3TF (SK), Yngvi – TF3Y and Gudmi-TF3SG have worked Hawaii on 80 meters.

It was interesting to note some extremely strong poor signals that obliterated parts of the bands along with some strong EU stations that seemed to be completely deaf.  It took me 46 minutes of constant calling to raise one of these stations on the low bands.    It is absolutely necessary to have separate receive antennas for the low bands (160/80) to be able to operate there with any kind of efficiency.

A very successful weekend is behind us and a what a good omen of things to come.

Our SoapBox comment to 3830 was as follows:

Comments:

This was the first CQ WW with TF4X being active. TF4X is a
special call issued to the TF4M station. The latest addition, the
phenomenal Arctic King 160m antenna took us by surprise. Almost as
many QSO’s on 160 as on 20. Numerous new Beverages and zero noise
level on RX. The strength of the station is displayed by low band
performance. First time JA pileup for us from TF on 160m in CQ WW.
Propagation was relatively good as we had little Aurora and definitely
better on the Saturday. According to the raw score the 29 year old M/S
record from TF was broken by 1.1 million points.



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I am taking the opportunity while the weather is bad to work inside the shack.

New cables have been routed into the equipment room and a 19″ equipment rack installed for the Harris amplifiers.

Two cables were installed for future use with the ends coming out of the ground in strategic places.

Hopefully I will not need to route more cables into the shack.

Operating position “C” is now fully operational – I tested the Harris RT1446/RF-350K with the 1KW amplifier this afternoon and there seem to be no problems.

It only remains to connect and test operating position “D” and then the station will be fully functional.

I would be interested in comments on the quality of my signals.

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