Hi all. The photo is a signet which my grandfather have engraved on 1930s; meaning busy, breed, augment or prosper -- I am sharing this particular Kanji, 'Han' with the grandpa.
I am especially interested in 50 MHz propagation/DX and the system-up for this purpose. I am using a FTDX-5000mp + hb 1-kW output legal linear amp, into 2x10.7m boom hb 8-element LFA Yagis 7.7m apart, at 30m AGL, with an hb elevation rotator mechanism.
With this system I have accomplished the EVER FIRST 50 MHz EME QSO from Japan/Zone 25/Asia with Ray WA4NJP. I specially thank to Ray, who have done a maintenance of the driving motor on the mast at the most harsh winter season for our skeds!
Are you enjoying your radio amateur life? Please be aware that we are surrounded by the universe - and many natural phenomena. We have opportunities to have thrilling experiences with amazing phenomena or propagations on-the-air. Our propagation is much affected by the activity of the Sun 150,000,000 km apart. We are jammed by the cosmic noise from many noise sources including Sagittarius-A where scientists say the largest black hole in the center of our galaxy at about 30,000 light years apart from us.
Just doing 59(9) QSL!? style QSOs? You can not earn more DX without knowing the nature of the propagation and other basic scientific facts. We have great opportunities to learn natural science through our amateur radio experience. Conversely our radio experienses are closely connected to, not only electronics, but also the natural sciense.
There are many unknown phenomena, or propagations being left on any amateur bands. If you closely and deeply QRV your favourite band using best rigs and antenna you can 'discover' new knowledges that other operators do not aware.
This is just as same as amateur astronomers - they are using small telescopes, digital-cameras and PCs to engage cosmic objects, while we are using antenna, rigs and PCs.
==== about the SSSP ====
I have discovered the SSSP - Summer Solstice Short-path Propagation. The SSSP have never been reported on 28 MHz nor 144 MHz - it is the propagation specifically to our six-meter band.
From early May to middle of August I am calling CQ every day on six meter to collect data of the propagation. On 2008 season I worked 50 QSOs with EUs and 456 QSOs with NAs including HI3, VEs, XEs and KL7s on six-meter via the SSSP from Chiba Japan.
I have written an article regarding the SSSP for some Six-Meter News in English. I also specially thank to Chris G3WOS who have edited the article. This article is an old version but it can be a help for new commers to get started with this six-meter SSSP propagation.
You can download the SSSP article from here: http://equina.web.fc2.com/sssp0.pdf
Additionally you can hear some examples of the SSSP QSOs here: https://audioboo.fm/JE1BMJ_Han
Any questions or notes are welcome.
==== News ====
My activities around the summer solstice season have been introduced on the world above 50MHz column, QST September 2008.
The above mentioned SSSP article has been published on the Fall 2008 issue of the CQ VHF magazine, with a comment titled "Long-Range Summer 6-Meter Paths Between The U.S. and Japan" by Ken WB2AMU.
==== 50MHz SSSP QSO results ====
2008-8-13: EU - 50 QSO, NA - 456 QSO
2009-8-13: EU - 105 QSO, NA - 262 QSO
2010-8-12: EU - 130 QSO, NA - 196 QSO topic: worked EI, OY, LA, MM, W1s in FN field
2011-8-10: EU - 91 QSO, NA - 105 QSO topic: worked with W1s in FN field.
2012-8-02: EU - 108 QSO, NA - 49 QSO topic: worked with VY2ZM.
2013-8-01: EU - 89 QSO, NA - 197 QSO, topic: worked VY0HL in zone 2.
2014-7-22: EU - 122 QSO, NA - 318 QSO (TBD) topic: worked OX3LX through the North Polar Zone!
2015 Summer Solstice season: TBD
==== the ARRL LoTW subscription ====
Now I have addressed to the ARRL LoTW:
50 MHz EU/NA QSOs from 2008 - 2014 have been uploaded.
HF QSOs of all periods will be uploaded later.
If you have no-match on the LoTW record please ask me via email - I will check and play fair.
===== FYI: About Japanese Radio-Amateur licenses System =====
One should obtain the radio-amateur operators license first, and then obtain station license with an application to get a permission to operate each of the modes/bands with a callsign for actual operation.
There are four classes in Japanese radio-amateur operators license system – 4th, 3rd, 2nd and 1st.
The 4th operator class is a no-code, entry-class license and phone/digital only, can not work on 10-, 14- and 18 MHz. Allowed to operate up to 10 W output transmitters on HF and up to 20 W on V/U/SHF bands.
The 3rd-class can use all-modes, can not work on 10- and 14 MHz. Allowed to operate up to 50 W output transmitters.
The 2nd-class can use all-modes and bands. Up to 200 W output transmitters can be used with this class.
The 1st-class can use all-modes and bands. Operating power is not limited, but virtually 1 kW maximum for Japanese radio amateur stations.
While the station license up to 200 W is easy to obtain with simple application procedure, the license of 201 W to 1-kW output stations need a field-inspection of MIC (Ministry of Internal affairs and communications) or authorized agencies and to pass stringent practical tests at the station’s installation location.
Also, there are radio amateur station licenses for ‘fixed’ and ‘mobile’. Mobile stations are restricted to 50 W maximum output, and those over 51 W are categorized to ‘fixed’ station. Many Japanese hams have both fixed- and mobile station licenses.
I have 1st class radio-amateur operator license and a mobile- and a fixed 1-kW output station license.
Integrity and compliance are the Japanese people’s virtues and, to obtain 500 W or 1 kW station license is much easier than ever in eighty-years of Japanese amateur radio history. If you hear strong JAs please search their station license at the English page bellow and confirm that they are worth respecting and working:
Thanks for reading, see you soon on the band(s) de Han JE1BMJ QM05BR
Also thanks to the Chief and all of the Staffs of the QRZ dot com.
6590145 Last modified: 2015-07-25 00:54:41, 7604 bytes
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